mirror of https://github.com/efabless/caravel.git
42 lines
1.9 KiB
Python
42 lines
1.9 KiB
Python
|
import random
|
||
|
|
import cocotb
|
||
|
|
from cocotb.triggers import FallingEdge,RisingEdge,ClockCycles,Timer
|
||
|
|
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.spi_master.SPI_VIP import read_mem ,SPI_VIP
|
||
|
|
from tests.housekeeping.housekeeping_spi.spi_access_functions import *
|
||
|
|
|
||
|
|
|
||
|
|
bit_time_ns = 0
|
||
|
|
reg = Regs()
|
||
|
|
|
||
|
|
|
||
|
|
@cocotb.test()
|
||
|
|
@repot_test
|
||
|
|
async def spi_rd_wr_nbyte(dut):
|
||
|
|
caravelEnv,clock = await test_configure(dut,timeout_cycles=14833)
|
||
|
|
cpu = RiskV(dut)
|
||
|
|
cpu.cpu_force_reset()
|
||
|
|
cpu.cpu_release_reset()
|
||
|
|
cocotb.log.info (f"[TEST] start spi_rd_wr_nbyte test")
|
||
|
|
nbytes_limits= 8
|
||
|
|
# writing to the random number(1 to 8) of bits after 0x1E (gpio_configure[4]) address avoid changing gpio 3
|
||
|
|
for j in range(3):
|
||
|
|
address = random.randint(0x26 , 0x67-nbytes_limits)
|
||
|
|
n_bytes = random.randint(1,nbytes_limits)
|
||
|
|
await write_reg_spi_nbytes(caravelEnv,address,[0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F],nbytes_limits)
|
||
|
|
await write_reg_spi_nbytes(caravelEnv,address,[0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0],n_bytes)
|
||
|
|
data = await read_reg_spi_nbytes(caravelEnv,address,nbytes_limits)
|
||
|
|
for i in range(nbytes_limits):
|
||
|
|
if i >= n_bytes:
|
||
|
|
if data[i] != 0x1F:
|
||
|
|
cocotb.log.error(f"[TEST] register {i} has returned value {data[i]} while it should return value 0x1F n_bytes = {n_bytes}")
|
||
|
|
else: cocotb.log.info(f"[TEST] successful read 0 from register {i} n_bytes = {n_bytes}")
|
||
|
|
else:
|
||
|
|
if data[i] != 0:
|
||
|
|
cocotb.log.error(f"[TEST] register number {i} has returned value {data[i]} > 0 while it should return value == 0 n_bytes = {n_bytes}")
|
||
|
|
else: cocotb.log.info(f"[TEST] successful read {data[i]} from register {i} n_bytes = {n_bytes}")
|
||
|
|
await ClockCycles(caravelEnv.clk,200)
|