cooctb- update gpio tests for caravan (#341)

* update gpio tests for caravan

* cocotb - Add gpio caravan tests

verilog/dv/cocotb/caravel_tests.py

@@ -37,6 +37,7 @@ from tests.irq.IRQ_external import *
 from tests.irq.IRQ_timer import *
 from tests.irq.IRQ_uart import *
 from tests.gpio.gpio import *
+from tests.gpio_caravan.gpio_caravan import *
 from tests.gpio.gpio_user import *
 from tests.mgmt_gpio.mgmt_gpio import *
 from tests.timer.timer import *

verilog/dv/cocotb/caravel_top.sv

@@ -371,4 +371,6 @@ reg [7:0] DM_INIT = `ifdef DM_INIT `DM_INIT `else 0 `endif;
 
 reg GL = `ifdef GL 1 `else 0 `endif;
 
+reg CARAVAN = `ifdef CARAVAN 1 `else 0 `endif;
+
 endmodule

verilog/dv/cocotb/interfaces/common.py

@@ -74,6 +74,7 @@ def fill_macros(macros_hdl):
     Macros['MPRJ_IO_PADS_2'] = macros_hdl.MPRJ_IO_PADS_2.value.integer
     Macros['MPRJ_IO_PADS']   = macros_hdl.MPRJ_IO_PADS.value.integer
     Macros['GL']     = macros_hdl.GL.value.integer
+    Macros['CARAVAN']     = macros_hdl.CARAVAN.value.integer
 
 
 

verilog/dv/cocotb/interfaces/cpu.py

@@ -193,6 +193,11 @@ class RiskV:
     def read_debug_reg2(self):
         return self.debug_hdl.debug_reg_2.value.integer
 
+    def read_debug_reg1_str(self):
+        return self.debug_hdl.debug_reg_1.value.binstr
+    def read_debug_reg2_str(self):
+        return self.debug_hdl.debug_reg_2.value.binstr
+
     # writing debug registers using backdoor because in GL cpu can't be disabled for now because of different netlist names
     def write_debug_reg1_backdoor(self,data):
         self.debug_hdl.debug_reg_1.value = data

verilog/dv/cocotb/tests.json

@@ -4,10 +4,16 @@
         "_comment1" :"GL regressions run this test in gatelevel, GL_SDF regression run this test with SDF included"
         ,"gpio_all_i" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","r_caravan_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","r_caravan_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"configure all gpios as mgmt input using automatic approach firmware and check them"}
+        ,"gpio_all_i_caravan" :{"level":0, 
+            "SW":true,
+            "RTL":["r_caravan_rtl"],
+            "GL":["r_caravan_gl"],
+            "GL_SDF":[],
+            "description":"configure all gpios as mgmt input using automatic approach firmware and check them for caravan"}
 
         ,"hk_disable" :{"level":0, 
             "SW":true,
@@ -23,25 +29,33 @@
             "description":"test uart reception"}
         ,"hk_regs_rst_spi" :{"level":0, 
             "SW":false,
-            "RTL":["r_rtl","setup","push","push_gl","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","push_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","push_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"check reset value of house keeping registers by reading them trough the spi housekeeping"}
         
         ,"gpio_all_i_user" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","r_caravan_rtl","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","r_caravan_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"configure all gpios as user input using automatic approach firmware and check them"}
 
         ,"gpio_all_i_pu" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","r_caravan_rtl","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","r_caravan_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"configure all gpios as mgmt input pull up using automatic approach firmware and check them"}
 
+
+        ,"gpio_all_i_pu_caravan" :{"level":0, 
+            "SW":true,
+            "RTL":["r_caravan_rtl"],
+            "GL":["r_caravan_gl"],
+            "GL_SDF":[],
+            "description":"configure all gpios as mgmt input pull up using automatic approach firmware and check them for caravan"}
+
         ,"gpio_all_i_pu_user" :{"level":0, 
             "SW":true,
             "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
@@ -51,15 +65,21 @@
 
         ,"gpio_all_i_pd" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","r_caravan_rtl","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","r_caravan_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"configure all gpios as mgmt input pull down using automatic approach firmware and check them"}
+        ,"gpio_all_i_pd_caravan" :{"level":0, 
+            "SW":true,
+            "RTL":["r_caravan_rtl"],
+            "GL":["r_caravan_gl"],
+            "GL_SDF":[],
+            "description":"configure all gpios as mgmt input pull down using automatic approach firmware and check them for caravan"}
 
         ,"gpio_all_i_pd_user" :{"level":0, 
             "SW":true,
             "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","r_caravan_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"configure all gpios as user input pull down using automatic approach firmware and check them"}
 
@@ -72,11 +92,18 @@
 
         ,"gpio_all_o" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","r_caravan_rtl","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
-            "GL":["r_gl","r_caravan_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","push_gl","gpio_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"configure all gpios as mgmt output using automatic approach firmware and check them"}
 
+        ,"gpio_all_o_caravan" :{"level":0, 
+            "SW":true,
+            "RTL":["r_caravan_rtl"],
+            "GL":["r_caravan_gl"],
+            "GL_SDF":[],
+            "description":"configure all gpios as mgmt output using automatic approach firmware and check them for caravan"}
+
         ,"gpio_all_o_user" :{"level":0, 
             "SW":true,
             "RTL":["r_rtl","setup","gpio_rtl","push","push_gl","nightly","weekly","tape_out"],
@@ -153,8 +180,8 @@
         
         ,"timer0_oneshot" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","nightly","weekly","tape_out"],
-            "GL":["r_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"check timer0 oneshot mode"} 
 
@@ -174,27 +201,27 @@
 
         ,"uart_tx" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","nightly","weekly","tape_out"],
-            "GL":["r_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"test uart transmit"}
         ,"debug" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","nightly","weekly","tape_out"],
-            "GL":["r_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"use caravel in debug mode and check reading and writing from dff2 RAM"}
         ,"spi_master_rd" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","nightly","weekly","tape_out"],
-            "GL":["r_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"using SPI master for reading from external memory"}
 
         ,"user_pass_thru_rd" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","nightly","weekly","tape_out"],
-            "GL":["r_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"use the housekeeping spi in user pass thru mode to read from external mem"}
     
@@ -214,8 +241,8 @@
 
         ,"la" :{"level":0, 
             "SW":true,
-            "RTL":["r_rtl","setup","nightly","weekly","tape_out"],
+            "RTL":["r_rtl","r_caravan_rtl","setup","nightly","weekly","tape_out"],
-            "GL":["r_gl","nightly","weekly","tape_out"],
+            "GL":["r_gl","r_caravan_gl","nightly","weekly","tape_out"],
             "GL_SDF":["r_sdf","weekly","tape_out"],
             "description":"check logic analyzer input and output enable"}
 

verilog/dv/cocotb/tests/gpio_caravan/gpio_all_i_caravan.c

@@ -0,0 +1,87 @@
+#include <defs.h>
+#include <stub.c>
+#include "../bitbang/bitbang_functions.c"
+
+void main(){
+    unsigned int i, j, k;
+    reg_wb_enable =1; // for enable writing to reg_debug_1 and reg_debug_2
+    reg_debug_1  = 0x0;
+    reg_debug_2  = 0x0;
+    reg_hkspi_disable = 1;
+    reg_mprj_io_37 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_36 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_35 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_34 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_33 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_32 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_31 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_30 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_29 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_28 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_27 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_26 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_25 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_24 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_23 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_22 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_21 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_20 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_19 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_18 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_17 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_16 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_15 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_14 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_13 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_12 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_11 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_10 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_9  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_8  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_7  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_6  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_5  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_4  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_3  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_2  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_1  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_0  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+    reg_mprj_io_0  = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+
+    reg_mprj_xfer = 1;
+    while (reg_mprj_xfer == 1);
+
+    reg_debug_1 = 0XAA; // configuration done wait environment to send 0xFFFFFFFF to reg_mprj_datal
+    while (reg_mprj_datal != 0xfe003fff); // gpios 14 to 25 has to be 0
+    reg_debug_2 = reg_mprj_datal;
+    reg_debug_1 = 0XBB; // configuration done wait environment to send 0xAAAAAAAA to reg_mprj_datal
+    while (reg_mprj_datal != 0xaa002aaa);
+    reg_debug_2 = reg_mprj_datal;
+    reg_debug_1 = 0XCC; // configuration done wait environment to send 0x55555555 to reg_mprj_datal
+    while (reg_mprj_datal != 0x54001555);
+    reg_debug_2 = reg_mprj_datal;
+    reg_debug_1 = 0XDD; // configuration done wait environment to send 0x0 to reg_mprj_datal
+    while (reg_mprj_datal != 0x0);
+    reg_debug_2 = reg_mprj_datal;
+    reg_debug_1 = 0XD1;
+    while (reg_mprj_datah != 0x3F);
+    reg_debug_2 = reg_mprj_datah;
+    reg_debug_1 = 0XD2;
+    while (reg_mprj_datah != 0x0);
+    reg_debug_2 = reg_mprj_datah;
+    reg_debug_1 = 0XD3;
+    while (reg_mprj_datah != 0x15);
+    reg_debug_2 = reg_mprj_datah;
+    reg_debug_1 = 0XD4;
+    while (reg_mprj_datah != 0x2A);
+    reg_debug_2 = reg_mprj_datah;
+    reg_debug_1 = 0XD5;
+    reg_debug_1 = 0XD5; // for delay insertion for release
+    // trying to inject error by sending data to gpio by firmware where gpios configured as input 
+    reg_mprj_datal = 0x5AE1FFB8; // random number
+    reg_mprj_datah = 0x1E; // random number
+
+    reg_debug_2 = 0xFF;
+}
+
+

verilog/dv/cocotb/tests/gpio_caravan/gpio_all_i_pd_caravan.c

@@ -0,0 +1,58 @@
+#include <defs.h>
+#include <stub.c>
+#include "../bitbang/bitbang_functions.c"
+
+void main(){
+    unsigned int i, j, k;
+    reg_wb_enable =1; // for enable writing to reg_debug_1 and reg_debug_2
+    reg_debug_1  = 0x0;
+    reg_debug_2  = 0x0;
+    reg_hkspi_disable = 1;
+    reg_mprj_io_37 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_36 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_35 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_34 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_33 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_32 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_31 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_30 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_29 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_28 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_27 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_26 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_25 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_24 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_23 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_22 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_21 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_20 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_19 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_18 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_17 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_16 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_15 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_14 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_13 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_12 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_11 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_10 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_9  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_8  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_7  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_6  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_5  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_4  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_3  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_2  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_1  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_0  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+    reg_mprj_io_0  = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+
+    reg_mprj_xfer = 1;
+    while (reg_mprj_xfer == 1);
+
+    reg_debug_1 = 0XAA; // configuration done 
+
+    print("adding a very very long delay because cpu produces X's when code finish and this break the simulation");
+    while (true);
+}

verilog/dv/cocotb/tests/gpio_caravan/gpio_all_i_pu_caravan.c

@@ -0,0 +1,57 @@
+#include <defs.h>
+#include <stub.c>
+#include "../bitbang/bitbang_functions.c"
+
+void main(){
+    unsigned int i, j, k;
+    reg_wb_enable =1; // for enable writing to reg_debug_1 and reg_debug_2
+    reg_debug_1  = 0x0;
+    reg_debug_2  = 0x0;
+    reg_hkspi_disable = 1;
+    reg_mprj_io_37 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_36 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_35 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_34 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_33 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_32 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_31 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_30 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_29 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_28 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_27 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_26 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_25 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_24 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_23 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_22 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_21 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_20 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_19 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_18 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_17 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_16 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_15 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_14 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_13 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_12 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_11 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_10 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_9  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_8  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_7  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_6  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_5  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_4  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_3  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_2  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_1  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_0  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+    reg_mprj_io_0  = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+
+    reg_mprj_xfer = 1;
+    while (reg_mprj_xfer == 1);
+
+    reg_debug_1 = 0XAA; // configuration done 
+    print("adding a very very long delay because cpu produces X's when code finish and this break the simulation");
+    while (true);
+}

verilog/dv/cocotb/tests/gpio_caravan/gpio_all_o_caravan.c

@@ -0,0 +1,81 @@
+#include <defs.h>
+#include <stub.c>
+#include "../bitbang/bitbang_functions.c"
+
+void main(){
+        unsigned int i, j, k;
+        reg_wb_enable =1; // for enable writing to reg_debug_1 and reg_debug_2
+        reg_debug_1  = 0x0;
+        reg_debug_2  = 0x0;
+        reg_hkspi_disable = 1;
+        reg_mprj_io_37 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_36 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_35 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_34 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_33 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_32 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_31 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_30 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_29 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_28 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_27 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_26 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_25 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_24 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_23 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_22 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_21 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_20 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_19 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_18 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_17 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_16 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_15 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_14 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_13 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_12 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_11 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_10 = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_9  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_8  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_7  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_6  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_5  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_4  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_3  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_2  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_1  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_0  = GPIO_MODE_MGMT_STD_OUTPUT;
+        reg_mprj_io_0  = GPIO_MODE_MGMT_STD_OUTPUT;
+
+        reg_mprj_xfer = 1;
+        while (reg_mprj_xfer == 1);
+
+        reg_debug_1 = 0xAA; // finish configuration 
+        reg_mprj_datal = 0x0;
+        reg_mprj_datah = 0x0;
+        i = 0x20;
+        for (j = 0; j < 5; j++) {
+                reg_mprj_datah = i;
+                reg_debug_2 = 37-j;
+                reg_mprj_datah = 0x00000000;
+                reg_debug_2 = 0;
+                i >>=1;
+                i |= 0x20;
+        }
+        i = 0x80000000;
+        for (j = 0; j < 32; j++) {
+                reg_mprj_datah = 0x3f;
+                reg_mprj_datal = i;
+                reg_debug_2 = 32-j;
+                reg_mprj_datah = 0x00;
+                reg_mprj_datal = 0x00000000;
+                reg_debug_2 = 0;
+                i >>=1;
+                i |= 0x80000000;
+        }
+        
+       
+        reg_debug_1 = 0XFF; // configuration done wait environment to send 0xFFA88C5A to reg_mprj_datal
+}
+

verilog/dv/cocotb/tests/gpio_caravan/gpio_caravan.py

@@ -0,0 +1,500 @@
+import random
+import cocotb
+from cocotb.triggers import FallingEdge,RisingEdge,ClockCycles
+import cocotb.log
+from interfaces.cpu import RiskV
+from interfaces.defsParser import Regs
+from cocotb.result import TestSuccess
+from tests.common_functions.test_functions import *
+from tests.bitbang.bitbang_functions import *
+from interfaces.caravel import GPIO_MODE
+from interfaces.common import Macros
+from cocotb.binary import BinaryValue
+
+reg = Regs()
+
+@cocotb.test()
+@repot_test
+async def gpio_all_o_caravan(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=586652)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+   
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    await caravelEnv.release_csb()
+    cocotb.log.info("[TEST] finish configuring ")
+    i= 0x20
+    for j in range(5):
+        await wait_reg2(cpu,caravelEnv,37-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        expected_data = bin(i<<32)[2:].zfill(38)[:13] +"zzzzzzzzzzz" + bin(i<<32)[2:].zfill(38)[24:]
+        if caravelEnv.monitor_gpio((37,0)).binstr != expected_data:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,0))} instead of {expected_data}')
+        await wait_reg2(cpu,caravelEnv,0)
+        expected_data = bin(0)[2:].zfill(38)[:13] +"zzzzzzzzzzz" + bin(0)[2:].zfill(38)[24:]
+        if caravelEnv.monitor_gpio((37,0)).binstr != expected_data:
+            cocotb.log.error(f'[TEST] Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {expected_data}')
+        i = i >> 1
+        i |= 0x20
+
+    i= 0x80000000
+    for j in range(32):
+        await wait_reg2(cpu,caravelEnv,32-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,32)).integer != 0x3f:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,32))} instead of {bin(0x3f)} ')
+        expected_data = bin(i)[2:].zfill(32)[:7] +"zzzzzzzzzzz" + bin(i)[2:].zfill(32)[18:]
+        if caravelEnv.monitor_gpio((31,0)).binstr != expected_data :
+            cocotb.log.error(f'[TEST] Wrong gpio low bits output {caravelEnv.monitor_gpio((31,0))} instead of {expected_data}')
+        await wait_reg2(cpu,caravelEnv,0)
+        expected_data = bin(0)[2:].zfill(38)[:13] +"zzzzzzzzzzz" + bin(0)[2:].zfill(38)[24:]
+        if caravelEnv.monitor_gpio((37,0)).binstr != expected_data:
+            cocotb.log.error(f'Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {expected_data}')
+
+        i = i >> 1
+        i |= 0x80000000
+
+    
+    await wait_reg1(cpu,caravelEnv,0XFF) 
+    await ClockCycles(caravelEnv.clk, 10)
+
+@cocotb.test()
+@repot_test
+async def gpio_all_i_caravan(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=56837)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    cocotb.log.info(f"[TEST] configuration finished")
+    data_in = 0xFFFFFFFF
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xBB)
+    mask = 0xfe003fff
+    data_expected = data_in & mask
+    if cpu.read_debug_reg2() == data_expected:
+        cocotb.log.info(f"[TEST] data {bin(data_in)} sent successfully through gpio[31:0] and seen as {bin(data_expected)}")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {bin(cpu.read_debug_reg2())} instead of {bin(data_expected)}")
+    data_in = 0xAAAAAAAA
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xCC)
+    data_expected = data_in & mask
+    if cpu.read_debug_reg2() == data_expected:
+        cocotb.log.info(f"[TEST] data {bin(data_in)} sent successfully through gpio[31:0] and seen as {bin(data_expected)}")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {bin(cpu.read_debug_reg2())} instead of {bin(data_expected)}")
+    data_in = 0x55555555
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xDD)
+    data_expected = data_in & mask
+    if cpu.read_debug_reg2() == data_expected:
+        cocotb.log.info(f"[TEST] data {bin(data_in)} sent successfully through gpio[31:0] and seen as {bin(data_expected)}")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {bin(cpu.read_debug_reg2())} instead of {bin(data_expected)}")
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD1)
+    data_expected = data_in & mask
+    if cpu.read_debug_reg2() == data_expected:
+        cocotb.log.info(f"[TEST] data {bin(data_in)} sent successfully through gpio[31:0] and seen as {bin(data_expected)}")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {bin(cpu.read_debug_reg2())} instead of {bin(data_expected)}")
+    data_in = 0x3F
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD2)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD3)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x15
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD4)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x2A
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in) 
+    await wait_reg1(cpu,caravelEnv,0XD5) 
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    caravelEnv.release_gpio((37,0))
+    await wait_reg2(cpu,caravelEnv,0XFF) 
+    if caravelEnv.monitor_gpio((37,0)).binstr != "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz":
+        cocotb.log.error(f"[TEST] ERROR: firmware can write to the gpios while they are configured as input_nopull gpio= {caravelEnv.monitor_gpio((37,0))}")
+    else:
+        cocotb.log.info(f"[TEST] [TEST] PASS: firmware cannot write to the gpios while they are configured as input_nopull gpio= {caravelEnv.monitor_gpio((37,0))}")
+    cocotb.log.info(f"[TEST] finish")
+
+
+@cocotb.test()
+@repot_test
+async def gpio_all_i_pu_caravan(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=58961,num_error=2000)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    uut = dut.uut
+
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    await caravelEnv.release_csb()
+    # monitor the output of padframe module it suppose to be all ones  when no input is applied
+    await ClockCycles(caravelEnv.clk,100) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1):
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pullup and float and {i} gpio must be z in caravan")
+            continue
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and float")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with zero 
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pullup and drived with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with ones 
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with 1")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with zeros and float other half
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        
+        if i%2 ==0: #even
+            if i in range(14,25,1):
+                if gpio[i] != "z":
+                    cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pullup and drived with odd half with 0 and {i} gpio must be z in caravan")
+                continue
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with odd half with 0")
+        else:
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pullup and drived with odd half with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i%2 ==0: #odd
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pullup and drived with even half with 0")
+        else:
+            if i in range(14,25,1):
+                if gpio[i] != "z":
+                    cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pullup and drived with even half with 0 and {i} gpio must be z in caravan")
+                continue
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with even half with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with ones and float other half
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1) and i%2==0:
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pullup and drived with odd half with 1 and {i} gpio must be z in caravan")
+            continue
+        if gpio[i]!="1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with odd half with 1")
+    
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1) and i%2==1:
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pullup and drived with even half with 1 and {i} gpio must be z in caravan")
+            continue
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with even half with 1")
+       
+    await ClockCycles(caravelEnv.clk,1000) 
+
+    # drive with zeros then release all gpio
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    caravelEnv.release_gpio((37,0))
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1):
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pullup and all released and {i} gpio must be z in caravan")
+            continue
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and all released")
+    await ClockCycles(caravelEnv.clk,1000) 
+
+
+@cocotb.test()
+@repot_test
+async def gpio_all_i_pd_caravan(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=58961,num_error=2000)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    uut = dut.uut
+    
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    await caravelEnv.release_csb()
+    # monitor the output of padframe module it suppose to be all ones  when no input is applied
+    await ClockCycles(caravelEnv.clk,100) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1):
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pulldown and float and {i} gpio must be z in caravan")
+            continue
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and float")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with zero 
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with ones 
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pulldown and drived with 1")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with zeros and float other half
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1) and i%2==0:
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pulldown and drived with odd half with 0 and {i} gpio must be z in caravan")
+            continue
+        if gpio[i]!="0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with odd half with 0")
+       
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1) and i%2==1:
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pulldown and drived with even half with 0 and {i} gpio must be z in caravan")
+            continue
+        if gpio[i]!="0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with even half with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with ones and float other half
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i%2 ==1: #odd
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pulldown and drived with odd half with 1")
+        else:
+            if i in range(14,25,1):
+                if gpio[i] != "z":
+                    cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pulldown and drived with odd half with 1 and {i} gpio must be z in caravan")
+                continue
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with odd half with 1")
+    
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i%2 ==0: #even
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pulldown and drived with odd half with 1")
+        else:
+            if i in range(14,25,1):
+                if gpio[i] != "z":
+                    cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while configured as input pulldown and drived with odd half with 1 and {i} gpio must be z in caravan")
+                continue
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with odd half with 1")
+
+    await ClockCycles(caravelEnv.clk,1000) 
+
+    # drive with ones then release all gpio
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    caravelEnv.release_gpio((37,0))
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.mprj_io.value.binstr[::-1]
+    for i in range(38):
+        if i in range(14,25,1):
+            if gpio[i] != "z":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of z while while configured as input pulldown and all released and {i} gpio must be z in caravan")
+            continue
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and all released")
+    await ClockCycles(caravelEnv.clk,1000) 
+
+@cocotb.test()
+@repot_test
+async def gpio_all_bidir(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=1144980)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    uut = dut.uut
+    await wait_reg1(cpu,caravelEnv,0x1A)
+    await caravelEnv.release_csb()
+    cocotb.log.info("[TEST] finish configuring ")
+    i= 0x20
+    for j in range(5):
+        await wait_reg2(cpu,caravelEnv,37-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,0)).integer != i << 32:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,0))} instead of {bin(i << 32)}')
+        await wait_reg2(cpu,caravelEnv,0)
+        if caravelEnv.monitor_gpio((37,0)).integer != 0:
+            cocotb.log.error(f'[TEST] Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
+        i = i >> 1
+        i |= 0x20
+
+    i= 0x80000000
+    for j in range(32):
+        await wait_reg2(cpu,caravelEnv,32-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,32)).integer != 0x3f:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,32))} instead of {bin(0x3f)} ')
+        if caravelEnv.monitor_gpio((31,0)).integer != i :
+            cocotb.log.error(f'[TEST] Wrong gpio low bits output {caravelEnv.monitor_gpio((31,0))} instead of {bin(i)}')
+        await wait_reg2(cpu,caravelEnv,0)
+        if caravelEnv.monitor_gpio((37,0)).integer != 0:
+            cocotb.log.error(f'Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
+
+        i = i >> 1
+        i |= 0x80000000
+
+    await wait_reg1(cpu,caravelEnv,0x2A)
+    cocotb.log.info(f"[TEST] configuration finished")
+    data_in = 0x8F66FD7B
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xBB)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xFFA88C5A
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xCC)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xC9536346
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD1)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xC9536346
+    data_in = 0x3F
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD2)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xC9536346
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD3)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xC9536346
+    data_in = 0x15
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD4)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xC9536346
+    data_in = 0x2A
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in) 
+    await wait_reg2(cpu,caravelEnv,0xFF) 
+    cocotb.log.info(f"[TEST] finish")
+
+    await ClockCycles(caravelEnv.clk, 10)

verilog/dv/cocotb/tests/gpio_caravan/gpio_user.py

@@ -0,0 +1,468 @@
+import random
+import cocotb
+from cocotb.triggers import FallingEdge,RisingEdge,ClockCycles
+import cocotb.log
+from interfaces.cpu import RiskV
+from interfaces.defsParser import Regs
+from cocotb.result import TestSuccess
+from tests.common_functions.test_functions import *
+from tests.bitbang.bitbang_functions import *
+from interfaces.caravel import GPIO_MODE
+from cocotb.binary import BinaryValue
+
+reg = Regs()
+
+@cocotb.test()
+@repot_test
+async def gpio_all_o_user(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=542674)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+   
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    await caravelEnv.release_csb()
+    cocotb.log.info("[TEST] finish configuring as user output")
+    i= 0x20
+    for j in range(5):
+        await wait_reg2(cpu,caravelEnv,37-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,0)).integer != i<<32:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,0))} instead of {bin(i<<32)}')
+        await wait_reg2(cpu,caravelEnv,0)
+        if caravelEnv.monitor_gpio((37,0)).integer != 0:
+            cocotb.log.error(f'[TEST] Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
+        i = i >> 1
+        i |= 0x20
+
+    i= 0x80000000
+    for j in range(32):
+        await wait_reg2(cpu,caravelEnv,32-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,32)).integer != 0x3f:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,32))} instead of {bin(0x3f)} ')
+        if caravelEnv.monitor_gpio((31,0)).integer != i :
+            cocotb.log.error(f'[TEST] Wrong gpio low bits output {caravelEnv.monitor_gpio((31,0))} instead of {bin(i)}')
+        await wait_reg2(cpu,caravelEnv,0)
+        if caravelEnv.monitor_gpio((37,0)).integer != 0:
+            cocotb.log.error(f'Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
+
+        i = i >> 1
+        i |= 0x80000000
+
+    await wait_reg1(cpu,caravelEnv,0XBB)
+    data_in = 0x8F66FD7B
+    cocotb.log.info(f"[TEST] try send {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    reg2 =0
+    await wait_reg1(cpu,caravelEnv,0XFF)
+    try:
+        reg2 =cpu.read_debug_reg2()
+        if reg2 == data_in:
+            cocotb.log.error(f"[TEST] Error: data {hex(data_in)} driven on gpio[31:0]  is seen by firmware while gpios are configured as output")
+        else: 
+            cocotb.log.info(f"[TEST] driven data {hex(data_in)} sent can't be sent to gpio[31:0] when it configure as output it can see {reg2}")
+    except Exception as e:
+        cocotb.log.info(f"[TEST] driven data {hex(data_in)} sent can't be sent to gpio[31:0] when it configure as output")
+        return
+    
+   
+    await ClockCycles(caravelEnv.clk, 10)
+
+
+@cocotb.test()
+@repot_test
+async def gpio_all_i_user(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=56694)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    cocotb.log.info(f"[TEST] configuration finished")
+    data_in = 0xFFFFFFFF
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xBB)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xAAAAAAAA
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xCC)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x55555555
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xDD)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD1)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x3F
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD2)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD3)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x15
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD4)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x2A
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in) 
+    await wait_reg1(cpu,caravelEnv,0XD5) 
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    caravelEnv.release_gpio((37,0))
+    await wait_reg2(cpu,caravelEnv,0XFF) 
+    if caravelEnv.monitor_gpio((37,0)).binstr != "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz":
+        cocotb.log.error(f"[TEST] ERROR: firmware can write to the gpios while they are configured as input_nopull gpio= {caravelEnv.monitor_gpio((37,0))}")
+    else:
+        cocotb.log.info(f"[TEST] [TEST] PASS: firmware cannot write to the gpios while they are configured as input_nopull gpio= {caravelEnv.monitor_gpio((37,0))}")
+    cocotb.log.info(f"[TEST] finish")
+
+
+@cocotb.test()
+@repot_test
+async def gpio_all_i_pu_user(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=58961,num_error=2000)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    uut = dut.uut
+
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    await caravelEnv.release_csb()
+    # monitor the output of padframe module it suppose to be all ones  when no input is applied
+    await ClockCycles(caravelEnv.clk,100) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and float")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with zero 
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pullup and drived with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with ones 
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with 1")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with zeros and float other half
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if i%2 ==1: #odd
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with odd half with 0")
+        else:
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pullup and drived with odd half with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if i%2 ==1: #odd
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pullup and drived with even half with 0")
+        else:
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with even half with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with ones and float other half
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i]!="1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with odd half with 1")
+    
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and drived with even half with 1")
+       
+    await ClockCycles(caravelEnv.clk,1000) 
+
+    # drive with zeros then release all gpio
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    caravelEnv.release_gpio((37,0))
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pullup and all released")
+    await ClockCycles(caravelEnv.clk,1000) 
+
+
+@cocotb.test()
+@repot_test
+async def gpio_all_i_pd_user(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=58961,num_error=2000)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    uut = dut.uut
+    
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    await caravelEnv.release_csb()
+    # monitor the output of padframe module it suppose to be all ones  when no input is applied
+    await ClockCycles(caravelEnv.clk,100) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and float")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with zero 
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive gpios with ones 
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "1":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pulldown and drived with 1")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with zeros and float other half
+    data_in =  0x0
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i]!="0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with odd half with 0")
+       
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i]!="0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with even half with 0")
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive odd half gpios with ones and float other half
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(0,38,2):
+        caravelEnv.release_gpio(i) # release even gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if i%2 ==0: #even
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pulldown and drived with odd half with 1")
+        else:
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with odd half with 1")
+    
+    await ClockCycles(caravelEnv.clk,1000) 
+    # drive even half gpios with zeros and float other half
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    for i in range(1,38,2):
+        caravelEnv.release_gpio(i) # release odd gpios
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if i%2 ==1: #odd
+            if gpio[i]!="1":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 1 while configured as input pulldown and drived with odd half with 1")
+        else:
+            if gpio[i] != "0":
+                cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and drived with odd half with 1")
+
+    await ClockCycles(caravelEnv.clk,1000) 
+
+    # drive with ones then release all gpio
+    data_in =  0x3FFFFFFFFF
+    caravelEnv.drive_gpio_in((37,0),data_in)
+    await ClockCycles(caravelEnv.clk,1000) 
+    caravelEnv.release_gpio((37,0))
+    await ClockCycles(caravelEnv.clk,1000) 
+    gpio = dut.uut.padframe.mprj_io_in.value.binstr
+    for i in range(38):
+        if gpio[i] != "0":
+            cocotb.log.error(f"[TEST] gpio[{i}] is having wrong value {gpio[i]} instead of 0 while configured as input pulldown and all released")
+    await ClockCycles(caravelEnv.clk,1000) 
+
+
+
+@cocotb.test()
+@repot_test
+async def gpio_all_bidir_user(dut):
+    caravelEnv,clock = await test_configure(dut,timeout_cycles=290455)
+    cpu = RiskV(dut)
+    cpu.cpu_force_reset()
+    cpu.cpu_release_reset()
+    uut = dut.uut
+    await wait_reg1(cpu,caravelEnv,0x1A)
+    await caravelEnv.release_csb()
+    cocotb.log.info("[TEST] finish configuring ")
+    i= 0x20
+    for j in range(5):
+        await wait_reg2(cpu,caravelEnv,37-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,0)).integer != i << 32:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,0))} instead of {bin(i << 32)}')
+        await wait_reg2(cpu,caravelEnv,0)
+        if caravelEnv.monitor_gpio((37,0)).integer != 0:
+            cocotb.log.error(f'[TEST] Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
+        i = i >> 1
+        i |= 0x20
+
+    i= 0x80000000
+    for j in range(32):
+        await wait_reg2(cpu,caravelEnv,32-j)
+        cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
+        if caravelEnv.monitor_gpio((37,32)).integer != 0x3f:
+            cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,32))} instead of {bin(0x3f)} ')
+        if caravelEnv.monitor_gpio((31,0)).integer != i :
+            cocotb.log.error(f'[TEST] Wrong gpio low bits output {caravelEnv.monitor_gpio((31,0))} instead of {bin(i)}')
+        await wait_reg2(cpu,caravelEnv,0)
+        if caravelEnv.monitor_gpio((37,0)).integer != 0:
+            cocotb.log.error(f'Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
+
+        i = i >> 1
+        i |= 0x80000000
+    caravelEnv.release_gpio((37,0))
+    await ClockCycles(caravelEnv.clk, 10)
+    caravelEnv.drive_gpio_in((31,0),0)
+    await ClockCycles(caravelEnv.clk, 10)
+    await wait_reg1(cpu,caravelEnv,0xAA)
+    cocotb.log.info(f"[TEST] configuration finished")
+    data_in = 0xFFFFFFFF
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xBB)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0xAAAAAAAA
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xCC)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x55555555
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xDD)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[31:0]")
+    caravelEnv.drive_gpio_in((31,0),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD1)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[31:0]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datal has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x3F
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD2)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x0
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD3)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x15
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in)
+    await wait_reg1(cpu,caravelEnv,0xD4)
+    if cpu.read_debug_reg2() == data_in:
+        cocotb.log.info(f"[TEST] data {hex(data_in)} sent successfully through gpio[37:32]")
+    else: 
+        cocotb.log.error(f"[TEST] Error: reg_mprj_datah has recieved wrong data {cpu.read_debug_reg2()} instead of {data_in}")
+    data_in = 0x2A
+    cocotb.log.info(f"[TEST] drive {hex(data_in)} to gpio[37:32]")
+    caravelEnv.drive_gpio_in((37,32),data_in) 
+    await wait_reg1(cpu,caravelEnv,0XD5) 
+   
+    await wait_reg2(cpu,caravelEnv,0XFF) 
+   
+    cocotb.log.info(f"[TEST] finish")
+    await ClockCycles(caravelEnv.clk, 10)

verilog/dv/cocotb/verify_cocotb.py

@@ -134,6 +134,7 @@ class RunTest:
     # vcs function      
     def runTest_vcs(self):
         print(f"Start running test: {self.sim_type}-{self.test_name}")
+        CARAVEL_PATH = os.getenv('CARAVEL_PATH')
         PDK_ROOT = os.getenv('PDK_ROOT')
         PDK = os.getenv('PDK')
         VERILOG_PATH = os.getenv('VERILOG_PATH')
@@ -168,8 +169,12 @@ class RunTest:
         os.environ["TESTCASE"] = f"{self.test_name}"
         os.environ["MODULE"] = f"caravel_tests"
         os.environ["SIM"] = self.sim_type
-
+        # user_project = f"-v {CARAVEL_PATH}/rtl/__user_project_wrapper.v"
-        os.system(f"vlogan -full64  -sverilog +error+30 caravel_top.sv {dirs} {macros} +define+TESTNAME=\\\"{self.test_name}\\\" +define+FTESTNAME=\\\"{self.full_test_name}\\\" +define+TAG=\\\"{os.getenv('RUNTAG')}\\\" -l {self.sim_path}/analysis.log -o {self.sim_path} ")
+        # if caravan:
+        #     print ("Use caravan")
+        #     macros = f'+define+CARAVAN {macros} '
+        #     user_project = f"-v {CARAVEL_PATH}/rtl/__user_analog_project_wrapper.v"
+        os.system(f"vlogan -full64  -sverilog +error+30 caravel_top.sv {dirs}  {macros} +define+TESTNAME=\\\"{self.test_name}\\\" +define+FTESTNAME=\\\"{self.full_test_name}\\\" +define+TAG=\\\"{os.getenv('RUNTAG')}\\\" -l {self.sim_path}/analysis.log -o {self.sim_path} ")
         os.system(f"vcs +lint=TFIPC-L {coverage_command} +error+30 -R -diag=sdf:verbose +sdfverbose +neg_tchk -debug_access -full64  -l {self.sim_path}/test.log  caravel_top -Mdir={self.sim_path}/csrc -o {self.sim_path}/simv +vpi -P pli.tab -load $(cocotb-config --lib-name-path vpi vcs)")
         self.passed = search_str(self.test_log.name,"Test passed with (0)criticals (0)errors")
         Path(f'{self.sim_path}/{self.passed}').touch()