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caravel/verilog/dv/cocotb/tests/bitbang/bitbang_tests.py

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Adding cocotb evironment with tests and scripts to run
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import random
import cocotb
from cocotb.triggers import FallingEdge,RisingEdge,ClockCycles
import cocotb.log
move caravel.py, cpu.py ... to interfaces directory
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from interfaces.cpu import RiskV
from interfaces.defsParser import Regs
Adding cocotb evironment with tests and scripts to run
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from cocotb.result import TestSuccess
from tests.common_functions.test_functions import *
from tests.bitbang.bitbang_functions import *
move caravel.py, cpu.py ... to interfaces directory
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from interfaces.caravel import GPIO_MODE
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reg = Regs()
@cocotb.test()
@repot_test
async def bitbang_no_cpu_all_o(dut):
add clock to the output od configuration function
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caravelEnv,clock = await test_configure(dut,timeout_cycles=10206)
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cpu = RiskV(dut)
cpu.cpu_force_reset()
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_37'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_36'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_35'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_34'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_33'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_32'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_31'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_30'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_29'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_28'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_27'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_26'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_25'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_24'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_23'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_22'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_21'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_20'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_19'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_18'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_17'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_16'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_15'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_14'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_13'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_12'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_11'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_10'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_9'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_8'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_7'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_6'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_5'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_4'),GPIO_MODE.GPIO_MODE_MGMT_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_3'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_2'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_1'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_0'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_0'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
#Configure all as output except reg_mprj_io_3
await clear_registers(cpu)
await clock_in_right_o_left_o_standard(cpu,0) # 18 and 19
await clock_in_right_o_left_o_standard(cpu,0) # 17 and 20
await clock_in_right_o_left_o_standard(cpu,0) # 16 and 21
await clock_in_right_o_left_o_standard(cpu,0) # 15 and 22
await clock_in_right_o_left_o_standard(cpu,0) # 14 and 23
await clock_in_right_o_left_o_standard(cpu,0) # 13 and 24
await clock_in_right_o_left_o_standard(cpu,0) # 12 and 25
await clock_in_right_o_left_o_standard(cpu,0) # 11 and 26
await clock_in_right_o_left_o_standard(cpu,0) # 10 and 27
await clock_in_right_o_left_o_standard(cpu,0) # 9 and 28
await clock_in_right_o_left_o_standard(cpu,0) # 8 and 29
await clock_in_right_o_left_o_standard(cpu,0) # 7 and 30
await clock_in_right_o_left_o_standard(cpu,0) # 6 and 31
await clock_in_right_o_left_o_standard(cpu,0) # 5 and 32
await clock_in_right_o_left_o_standard(cpu,0) # 4 and 33
await clock_in_right_o_left_i_standard(cpu,0) # 3 and 34
await clock_in_right_o_left_i_standard(cpu,0) # 2 and 35
await clock_in_right_o_left_i_standard(cpu,0) # 1 and 36
await clock_in_end_output(cpu) # 0 and 37 and load
await cpu.drive_data2address(reg.get_addr('reg_mprj_datal'),0x0)
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x0)
i= 0x20
for j in range(5):
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),i)
cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,4))} int {caravelEnv.monitor_gpio((37,4)).integer} i = {i}')
if caravelEnv.monitor_gpio((37,4)).integer != i << 28:
cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,4))} instead of {bin(i << 28)}')
# for k in range(250):
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0)
if caravelEnv.monitor_gpio((37,4)).integer != 0:
cocotb.log.error(f'[TEST] Wrong gpio output {caravelEnv.monitor_gpio((37,4))} instead of {bin(0x00000)}')
i = i >> 1
i |= 0x20
await ClockCycles(caravelEnv.clk, 1)
i= 0x80000000
for j in range(32):
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x3f)
await cpu.drive_data2address(reg.get_addr('reg_mprj_datal'),i)
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((31,4)).integer != i>>4 :
cocotb.log.error(f'[TEST] Wrong gpio low bits output {caravelEnv.monitor_gpio((31,4))} instead of {i>>4}')
cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,4))} type {int(caravelEnv.monitor_gpio((37,4)))} i = {i}')
await ClockCycles(caravelEnv.clk, 1)
# await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x0)
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x0)
await cpu.drive_data2address(reg.get_addr('reg_mprj_datal'),0x0)
await ClockCycles(caravelEnv.clk, 1)
if caravelEnv.monitor_gpio((37,4)).integer != 0:
cocotb.log.error(f'Wrong gpio output {caravelEnv.monitor_gpio((37,4))} instead of {bin(0x00000)}')
i = i >> 1
i |= 0x80000000
await ClockCycles(caravelEnv.clk, 1000)
@cocotb.test()
@repot_test
async def bitbang_no_cpu_all_i(dut):
add clock to the output od configuration function
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caravelEnv,clock = await test_configure(dut,timeout_cycles=8005)
Adding cocotb evironment with tests and scripts to run
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cpu = RiskV(dut)
cpu.cpu_force_reset()
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_37'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_36'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_35'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_34'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_33'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_32'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_31'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_30'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_29'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_28'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_27'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_26'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_25'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_24'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_23'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_22'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_21'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_20'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_19'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_18'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_17'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_16'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_15'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_14'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_13'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_12'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_11'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_10'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_9'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_8'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_7'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_6'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_5'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_4'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_3'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_2'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_1'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_0'),GPIO_MODE.GPIO_MODE_MGMT_STD_INPUT.value)
#Configure all as input except reg_mprj_io_3
await clear_registers(cpu)
await clock_in_right_i_left_i_standard(cpu,0) # 18 and 19
await clock_in_right_i_left_i_standard(cpu,0) # 17 and 20
await clock_in_right_i_left_i_standard(cpu,0) # 16 and 21
await clock_in_right_i_left_i_standard(cpu,0) # 15 and 22
await clock_in_right_i_left_i_standard(cpu,0) # 14 and 23
await clock_in_right_i_left_i_standard(cpu,0) # 13 and 24
await clock_in_right_i_left_i_standard(cpu,0) # 12 and 25
await clock_in_right_i_left_i_standard(cpu,0) # 11 and 26
await clock_in_right_i_left_i_standard(cpu,0) # 10 and 27
await clock_in_right_i_left_i_standard(cpu,0) # 9 and 28
await clock_in_right_i_left_i_standard(cpu,0) # 8 and 29
await clock_in_right_i_left_i_standard(cpu,0) # 7 and 30
await clock_in_right_i_left_i_standard(cpu,0) # 6 and 31
await clock_in_right_i_left_i_standard(cpu,0) # 5 and 32
await clock_in_right_i_left_i_standard(cpu,0) # 4 and 33
await clock_in_right_i_left_i_standard(cpu,0) # 3 and 34
await clock_in_right_i_left_i_standard(cpu,0) # 2 and 35
await clock_in_right_i_left_i_standard(cpu,0) # 1 and 36
await clock_in_right_i_left_i_standard(cpu,0) # 0 and 37
await load(cpu) # load
caravelEnv.drive_gpio_in((31,0),0x8F66FD7B)
await ClockCycles(caravelEnv.clk, 100)
reg_mprj_datal = await cpu.read_address(reg.get_addr('reg_mprj_datal'))
# value_masked = reg_mprj_datal & mask_input
if reg_mprj_datal == 0x8F66FD7B:
cocotb.log.info(f'[TEST] Passed with value 0x8F66FD7B')
else:
cocotb.log.error(f'[TEST] fail with value mprj = {bin(reg_mprj_datal)} instead of {bin(0x8F66FD7B)}')
await ClockCycles(caravelEnv.clk, 100)
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x1B)
x = caravelEnv.monitor_gpio((37,32))
print(f"xxxxxxxx {x}")
await ClockCycles(caravelEnv.clk, 100)
caravelEnv.drive_gpio_in((31,0),0xFFA88C5A)
await ClockCycles(caravelEnv.clk, 100)
reg_mprj_datal = await cpu.read_address(reg.get_addr('reg_mprj_datal'))
# value_masked = reg_mprj_datal & mask_input
if reg_mprj_datal == 0xFFA88C5A:
cocotb.log.info(f'[TEST] Passed with value 0xFFA88C5A')
else:
cocotb.log.error(f'[TEST] fail with value mprj = {bin(reg_mprj_datal)} instead of {bin(0xFFA88C5A)}')
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x2B)
await ClockCycles(caravelEnv.clk, 100)
caravelEnv.drive_gpio_in((31,0),0xC9536346)
await ClockCycles(caravelEnv.clk, 100)
reg_mprj_datal = await cpu.read_address(reg.get_addr('reg_mprj_datal'))
# value_masked = reg_mprj_datal & mask_input
if reg_mprj_datal == 0xC9536346:
cocotb.log.info(f'[TEST] Passed with value 0xC9536346')
else:
cocotb.log.error(f'[TEST] fail with value mprj = {bin(reg_mprj_datal)} instead of {bin(0xC9536346)}')
await cpu.drive_data2address(reg.get_addr('reg_mprj_datah'),0x3B)
await ClockCycles(caravelEnv.clk, 100)
"""Testbench of GPIO configuration through bit-bang method using the StriVe housekeeping SPI."""
@cocotb.test()
@repot_test
async def io_ports(dut):
add clock to the output od configuration function
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caravelEnv,clock = await test_configure(dut)
Adding cocotb evironment with tests and scripts to run
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cpu = RiskV(dut)
cpu.cpu_force_reset()
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_0'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_1'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_2'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_3'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_4'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_5'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_6'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
await cpu.drive_data2address(reg.get_addr('reg_mprj_io_7'),GPIO_MODE.GPIO_MODE_USER_STD_OUTPUT.value)
# Apply configuration
await cpu.drive_data2address(reg.get_addr('reg_mprj_xfer'),1)
while True:
if await cpu.read_address(reg.get_addr('reg_mprj_xfer')) != 1 :
break