mirror of https://github.com/efabless/caravel.git
70 lines
2.9 KiB
Python
70 lines
2.9 KiB
Python
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import random
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import cocotb
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from cocotb.triggers import FallingEdge,RisingEdge,ClockCycles
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import cocotb.log
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from cpu import RiskV
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from defsParser import Regs
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from cocotb.result import TestSuccess
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from tests.common_functions.test_functions import *
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from tests.bitbang.bitbang_functions import *
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from caravel import GPIO_MODE
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from cocotb.binary import BinaryValue
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reg = Regs()
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@cocotb.test()
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@repot_test
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async def gpio_all_o_user(dut):
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caravelEnv,clock = await test_configure(dut,timeout_cycles=376123)
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cpu = RiskV(dut)
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cpu.cpu_force_reset()
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cpu.cpu_release_reset()
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await wait_reg1(cpu,caravelEnv,0xAA)
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cocotb.log.info("[TEST] finish configuring as user output")
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i= 0x20
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for j in range(5):
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await wait_reg2(cpu,caravelEnv,37-j)
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cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
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if caravelEnv.monitor_gpio((37,0)).integer != i<<32:
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cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,0))} instead of {bin(i<<32)}')
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await wait_reg2(cpu,caravelEnv,0)
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if caravelEnv.monitor_gpio((37,0)).integer != 0:
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cocotb.log.error(f'[TEST] Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
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i = i >> 1
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i |= 0x20
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i= 0x80000000
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for j in range(32):
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await wait_reg2(cpu,caravelEnv,32-j)
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cocotb.log.info(f'[Test] gpio out = {caravelEnv.monitor_gpio((37,0))} j = {j}')
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if caravelEnv.monitor_gpio((37,32)).integer != 0x3f:
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cocotb.log.error(f'[TEST] Wrong gpio high bits output {caravelEnv.monitor_gpio((37,32))} instead of {bin(0x3f)} ')
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if caravelEnv.monitor_gpio((31,0)).integer != i :
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cocotb.log.error(f'[TEST] Wrong gpio low bits output {caravelEnv.monitor_gpio((31,0))} instead of {bin(i)}')
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await wait_reg2(cpu,caravelEnv,0)
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if caravelEnv.monitor_gpio((37,0)).integer != 0:
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cocotb.log.error(f'Wrong gpio output {caravelEnv.monitor_gpio((37,0))} instead of {bin(0x00000)}')
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i = i >> 1
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i |= 0x80000000
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await wait_reg1(cpu,caravelEnv,0XBB)
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data_in = 0x8F66FD7B
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cocotb.log.info(f"[TEST] try send {hex(data_in)} to gpio[31:0]")
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caravelEnv.drive_gpio_in((31,0),data_in)
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reg2 =0
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await wait_reg1(cpu,caravelEnv,0XFF)
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try:
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reg2 =cpu.read_debug_reg2()
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if reg2 == data_in:
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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")
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else:
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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}")
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except Exception as e:
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cocotb.log.info(f"[TEST] driven data {hex(data_in)} sent can't be sent to gpio[31:0] when it configure as output")
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return
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await ClockCycles(caravelEnv.clk, 10)
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