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1035 lines
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Python

2 years ago
# toysram sdr tb
#
# variations:
# sdr: 1x
# ddr: 1x
# ddr: 2x
import cocotb
from cocotb.clock import Clock
from cocotb.triggers import Timer
from cocotb.triggers import FallingEdge
from cocotb.triggers import RisingEdge
from cocotb.handle import Force
from cocotb.handle import Release
import itertools
from dotmap import DotMap
from random import getrandbits
from random import randint
from OPEnv import *
def hexrandom(w=16):
n = getrandbits(w*4)
return '{0:0{l}X}'.format(n, l=w)
# Classes ----------------------------------------------------------------------------------------
class Memory:
def __init__(self, rows, bits, init=0):
self.mem = [init] * rows
self.rows = rows
self.bits = bits
def read(self, adr):
return self.mem[adr]
def readall(self):
mem = []
for i in range(len(self.mem)):
mem.append(self.mem[i])
return mem
def write(self, adr, dat):
self.mem[adr] = dat
def __str__(self):
t = ''
for i in range(self.rows, 4):
t1 = f'[{i:02X}] {self.mem[i]:0{bits/4}X}'
for j in range(i+1, i+4):
t1 += f' [{j:02X}] {self.mem[j]:0{bits/4}X}'
t += t1 + '\n'
return t
class Port:
def __init__(self, sim, id, type='r', nibbles=18):
self.sim = sim
self.dut = sim.dut
self.id = id
self.type = type
self.nibbles = nibbles
def read(self, adr):
if self.id == 0:
self.dut.rd_enb_0.value = 1
self.dut.rd_adr_0.value = adr
elif self.id == 1:
self.dut.rd_enb_1.value = 1
self.dut.rd_adr_1.value = adr
elif self.id == 2:
self.dut.rd_enb_2.value = 1
self.dut.rd_adr_2.value = adr
elif self.id == 3:
self.dut.rd_enb_3.value = 1
self.dut.rd_adr_3.value = adr
self.sim.msg(f'Port={self.id} RD @{adr:02X}')
def write(self, adr, dat):
if self.id == 0:
self.dut.wr_enb_0.value = 1
self.dut.wr_adr_0.value = adr
self.dut.wr_dat_0.value = dat
elif self.id == 1:
self.dut.wr_enb_1.value = 1
self.dut.wr_adr_1.value = adr
self.dut.wr_dat_1.value = dat
elif self.id == 2:
self.dut.wr_enb_2.value = 1
self.dut.wr_adr_2.value = adr
self.dut.wr_dat_2.value = dat
elif self.id == 3:
self.dut.wr_enb_3.value = 1
self.dut.wr_adr_3.value = adr
self.dut.wr_dat_3.value = dat
self.sim.msg(f'Port={self.id} WR @{adr:02X}={dat:0{self.nibbles}X}')
def data(self):
if self.id == 0:
return self.dut.rd_dat_0.value.integer
elif self.id == 1:
return self.dut.rd_dat_1.value.integer
elif self.id == 2:
return self.dut.rd_dat_2.value.integer
elif self.id == 3:
return self.dut.rd_dat_3.value.integer
def idle(self):
if self.type == 'r':
if self.id == 0:
self.dut.rd_enb_0.value = 0
self.dut.rd_adr_0.value = 0 # random
elif self.id == 1:
self.dut.rd_enb_1.value = 0
self.dut.rd_adr_1.value = 0 # random
elif self.id == 2:
self.dut.rd_enb_2.value = 0
self.dut.rd_adr_2.value = 0 # random
elif self.id == 3:
self.dut.rd_enb_3.value = 0
self.dut.rd_adr_3.value = 0 # random
else:
if self.id == 0:
self.dut.wr_enb_0.value = 0
self.dut.wr_adr_0.value = 0 # random
self.dut.wr_dat_0.value = 0 # random
elif self.id == 1:
self.dut.wr_enb_1.value = 0
self.dut.wr_adr_1.value = 0 # random
self.dut.wr_dat_1.value = 0 # random
elif self.id == 2:
self.dut.wr_enb_2.value = 0
self.dut.wr_adr_2.value = 0 # random
self.dut.wr_dat_2.value = 0 # random
elif self.id == 3:
self.dut.wr_enb_3.value = 0
self.dut.wr_adr_3.value = 0 # random
self.dut.wr_dat_31.value = 0 # random
def hex(n, pad=0):
if pad:
return f'000000000000000000000000{n.value.hex()[2:].upper()}'[-pad:]
else:
return n.value.hex()[2:].upper()
def printstate(sim):
if sim.sdr:
try:
sim.msg(f'R0: {sim.dut.ra.rd_enb_0_q.value} {hex(sim.dut.ra.rd_adr_0_q, 2)} {hex(sim.dut.ra.rd_dat_0_q, 18)} R1: {sim.dut.ra.rd_enb_1_q.value} {hex(sim.dut.ra.rd_adr_1_q, 2)} {hex(sim.dut.ra.rd_dat_1_q, 18)}')
except:
sim.msg(f'R0: {sim.dut.ra.rd_enb_0_q.value} {sim.dut.ra.rd_adr_0_q.value} {sim.dut.ra.rd_dat_0_q.value} R1: {sim.dut.ra.rd_enb_1_q.value} {sim.dut.ra.rd_adr_1_q.value} {sim.dut.ra.rd_dat_1_q.value}')
try:
sim.msg(f'W0: {sim.dut.ra.wr_enb_0_q.value} {hex(sim.dut.ra.wr_adr_0_q, 2)} {hex(sim.dut.ra.wr_dat_0_q, 18)}')
except:
sim.msg(f'W0: {sim.dut.ra.wr_enb_0_q.value} {sim.dut.ra.wr_adr_0_q.value} {sim.dut.ra.wr_dat_0_q.value}')
else:
pass
def printstate_32(sim):
if sim.sdr:
try:
sim.msg(f'R0: {sim.dut.ra.rd_enb_0_q.value} {hex(sim.dut.ra.rd_adr_0_q, 2)} {hex(sim.dut.ra.rd_dat_0_q, 8)} R1: {sim.dut.ra.rd_enb_1_q.value} {hex(sim.dut.ra.rd_adr_1_q, 2)} {hex(sim.dut.ra.rd_dat_1_q, 8)}')
except:
sim.msg(f'R0: {sim.dut.ra.rd_enb_0_q.value} {sim.dut.ra.rd_adr_0_q.value} {sim.dut.ra.rd_dat_0_q.value} R1: {sim.dut.ra.rd_enb_1_q.value} {sim.dut.ra.rd_adr_1_q.value} {sim.dut.ra.rd_dat_1_q.value}')
try:
sim.msg(f'W0: {sim.dut.ra.wr_enb_0_q.value} {hex(sim.dut.ra.wr_adr_0_q, 2)} {hex(sim.dut.ra.wr_dat_0_q, 8)}')
except:
sim.msg(f'W0: {sim.dut.ra.wr_enb_0_q.value} {sim.dut.ra.wr_adr_0_q.value} {sim.dut.ra.wr_dat_0_q.value}')
else:
pass
# ------------------------------------------------------------------------------------------------
# Tasks
# get rid of z on anything that will be sampled here
# is there a func to get all inputs?
async def init(dut, sim):
"""Initialize inputs. """
dut.cfg_wr = 0
2 years ago
return
async def initSite(dut, sim):
"""Initialize inputs. """
dut.wbs_stb_i.value = 0
dut.wbs_cyc_i.value = 0
dut.la_data_in.value = 0
dut.la_oenb.value = 0
dut.io_in.value = 0
return
async def config(dut, sim):
"""Configure core, etc. """
return
async def coreMonitor(dut, sim):
"""Watch for core events. """
return
async def genReset(dut, sim):
"""Generate reset. """
first = True
done = False
while not done:
await RisingEdge(sim.clk1x)
if sim.cycle < sim.resetCycle:
if first:
sim.msg(f'Resetting...')
first = False
dut.reset.value = 1
elif not done:
sim.msg(f'Releasing reset.')
dut.reset.value = 0
done = True
async def genClocks(dut, sim):
"""Generate clock pulses. """
sim.clk1x = dut.clk
clk = Clock(sim.clk1x, sim.clk1xPeriod, 'ns')
await cocotb.start(clk.start())
sim.cycle = 0
while True:
sim.cycle += 1
if sim.cycle % sim.hbCycles == 0:
sim.msg(f'...tick...')
await RisingEdge(sim.clk1x)
async def configSite(dut, sim):
"""Configure core, etc. """
return
async def genResetSite(dut, sim):
"""Generate reset. """
first = True
done = False
while not done:
await RisingEdge(sim.clk1x)
if sim.cycle < sim.resetCycle:
if first:
sim.msg(f'Resetting...')
first = False
dut.wb_rst_i.value = 1
elif not done:
sim.msg(f'Releasing reset.')
dut.wb_rst_i.value = 0
done = True
async def genClocksSite(dut, sim):
"""Generate clock pulses. """
sim.clk1x = dut.wb_clk_i
clk = Clock(sim.clk1x, sim.clk1xPeriod, 'ns')
await cocotb.start(clk.start())
sim.cycle = 0
while True:
sim.cycle += 1
if sim.randomIO:
dut.io_in.value = int(hexrandom(9),16)*2 # randomize 1:36 (test_enable=0)
assert sim.cycle < sim.maxCycles, f'Maximum cycles reached!'
if sim.cycle % sim.hbCycles == 0:
sim.msg(f'...tick...')
await RisingEdge(sim.clk1x)
# ------------------------------------------------------------------------------------------------
# Interfaces
# ------------------------------------------------------------------------------------------------
# Do something
# ------------------------------------------------------------------------------------------------
# ------------------------------------------------------------------------------------------------
@cocotb.test()
async def tb(dut):
"""ToySRAM 64x72 array test"""
sim = Sim(dut)
sim.sdr = True
sim.ddr = False
sim.clk1xPeriod = 1
sim.clk2x = False
sim.maxCycles = 10000
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# init stuff
await init(dut, sim)
# start clocks,reset
clkGen = await cocotb.start(genClocks(dut, sim))
await cocotb.start(genReset(dut, sim))
await Timer(sim.resetCycle + 5, units='ns')
if dut.reset.value != 0:
sim.ok = False
sim.fail = 'Reset active too long!'
# config stuff
await config(dut, sim)
# monitor stuff
await cocotb.start(coreMonitor(dut, sim))
# do stuff
data = Memory(64, 72)
if sim.sdr:
portsRd = [Port(sim, 0, 'r'), Port(sim, 1, 'r')]
portsWr = [Port(sim, 0, 'w')]
else:
portsRd = [Port(sim, 0, 'r'), Port(sim, 1, 'r'), Port(sim, 2, 'r'), Port(sim, 3, 'r')]
portsWr = [Port(sim, 0, 'w'), Port(sim, 1, 'w')]
await RisingEdge(sim.clk1x)
# idle
for p in portsRd:
p.idle()
for p in portsWr:
p.idle()
for i in range(10):
await RisingEdge(sim.clk1x)
# init array
sim.msg('Initializing array...')
if sim.sdr:
for a in range(64):
d0 = int(f'{a:02X}55555555555555{a:02X}', 16)
portsWr[0].write(a, d0)
await RisingEdge(sim.clk1x)
data.write(a, d0) # now visible for reads
portsWr[0].idle()
else:
pass
'''
for a in range(0, 64, 2):
d0 = int(f'5555555555555555{a:02X}', 16)
portsWr[0].write(a, d0)
d1 = int(f'5555555555555555{a+1:02X}', 16)
portsWr[1].write(a+1, d1)
run(1, printstate)
data.write(a, d0) # now visible for reads
data.write(a+1, d1) # now visible for reads
portsWr[0].idle()
portsWr[1].idle()
'''
# random cmds
sim.msg('Running random commands...')
updates = []
checks = []
reads = [0, 0, 0, 0]
writes = [0, 0]
saveData = None
quiesced = False
quiesceCyc = sim.cycle + sim.maxCycles - 10
errors = 0
2 years ago
# configure allowed ports/entries
rangesRd = [(0,63), (0,63), (0,63), (0,63)] # full
#rangesRd = [(0,7), (0,7), (0,7), (0,7)] # hammer
#rangesRd = [(0,0), (0,0), (0,0), (0,0)] # single
2 years ago
rangesWr = [(0,63), (0,63),(0,63), (0,63)] # full
#rangesWr = [(0,7), (0,7)] # hammer
#rangesWr = [(0,0), (0,0)] # single
#rangesWr = [None, None] # none
2 years ago
2 years ago
verbose = True
for c in range(sim.maxCycles):
sim.ok = True
await FallingEdge(sim.clk1x)
# check reads
checksNext = []
for i in range(len(checks)):
rd = checks[i]
if sim.cycle == rd[0]:
port = rd[1]
adr = rd[2]
act = portsRd[port].data()
exp = saveData[rd[2]]
if act != exp:
sim.ok = False
try:
sim.msg(f'* RD MISCOMPARE * port={port} adr={adr:02X} act={act:018X} exp={exp:018X}')
except:
sim.msg(f'* RD MISCOMPARE * port={port} adr={adr} act={act} exp={exp}')
elif verbose:
sim.msg(f'* RD COMPARE * port={port} adr={adr:02X} act={act:018X} exp={exp:018X}')
else:
checksNext.append(rd)
checks = checksNext
# do writes
updatesNext = [] # always only 1 cycle
for i in range(len(updates)):
wr = updates[i]
if sim.cycle == wr[0]:
data.write(wr[2], wr[3])
else:
assert False, f'HUH? should always be this cycle! {sim.cycle},{updates}'
updates = updatesNext
# save current data
saveData = data.readall()
# quiesce?
if sim.cycle >= quiesceCyc:
if not quiesced:
sim.msg('Quiescing...')
quiesced = True
# w0/w1 write coll will give w1 precedence - or make it avoid
aw = [None] * 2
for i in range(len(portsWr)):
portsWr[i].idle()
aw[i] = -1
2 years ago
if rangesWr[i] is not None and not quiesced and randint(1, 10) < 5:
2 years ago
r = rangesWr[i]
aw[i] = randint(r[0], r[1])
d = int(hexrandom(18), 16)
portsWr[i].write(aw[i], d)
updates.append((sim.cycle + 1, i, aw[i], d))
writes[i] += 1
for i in range(len(portsRd)):
portsRd[i].idle()
2 years ago
if rangesRd[i] is not None and not quiesced and randint(1, 10) < 5:
2 years ago
r = rangesRd[i]
ar = randint(r[0], r[1])
while ar == aw[0] or ar == aw[1]:
ar = randint(r[0], r[1])
portsRd[i].read(ar)
checks.append((sim.cycle + 2, i, ar))
reads[i] += 1
await RisingEdge(sim.clk1x)
#printstate(sim)
if not sim.ok: # and stopOnFail:
break
sim.msg('Done.')
# idle
for p in portsRd:
p.idle()
for p in portsWr:
p.idle()
sim.msg('Final State')
print(data)
for i in range(len(portsRd)):
print(f'Reads Port {i}: {reads[i]}')
for i in range(len(portsWr)):
print(f'Writes Port {i}: {writes[i]}')
if sim.ok:
sim.msg(f'You has opulence.')
else:
for i in range(10):
await RisingEdge(sim.clk1x)
sim.msg(f'You are worthless and weak!')
assert False, f'[{sim.cycle:08d}] {sim.fail}'
# ------------------------------------------------------------------------------------------------
# ------------------------------------------------------------------------------------------------
@cocotb.test()
async def tb_32x32(dut):
"""ToySRAM 32x32 array test"""
sim = Sim(dut)
sim.sdr = True
sim.ddr = False
sim.clk1xPeriod = 1
sim.clk2x = False
sim.maxCycles = 10000
# init stuff
await init(dut, sim)
# start clocks,reset
clkGen = await cocotb.start(genClocks(dut, sim))
await cocotb.start(genReset(dut, sim))
await Timer(sim.resetCycle + 5, units='ns')
if dut.reset.value != 0:
sim.ok = False
sim.fail = 'Reset active too long!'
# config stuff
await config(dut, sim)
# monitor stuff
await cocotb.start(coreMonitor(dut, sim))
# do stuff
data = Memory(32, 32)
if sim.sdr:
portsRd = [Port(sim, 0, 'r', 8), Port(sim, 1, 'r', 8)]
portsWr = [Port(sim, 0, 'w', 8)]
else:
portsRd = [Port(sim, 0, 'r', 8), Port(sim, 1, 'r', 8), Port(sim, 2, 'r', 8), Port(sim, 3, 'r', 8)]
portsWr = [Port(sim, 0, 'w', 8), Port(sim, 1, 'w', 8)]
await RisingEdge(sim.clk1x)
# idle
for p in portsRd:
p.idle()
for p in portsWr:
p.idle()
for i in range(10):
await RisingEdge(sim.clk1x)
# init array
sim.msg('Initializing array...')
if sim.sdr:
for a in range(32):
d0 = int(f'{a:02X}5555{a:02X}', 16)
portsWr[0].write(a, d0)
await RisingEdge(sim.clk1x)
data.write(a, d0) # now visible for reads
portsWr[0].idle()
else:
pass
# random cmds
sim.msg('Running random commands...')
updates = []
checks = []
reads = [0, 0, 0, 0]
writes = [0, 0]
saveData = None
quiesced = False
quiesceCyc = sim.cycle + sim.maxCycles - 10
errors = 0
#rangesRd = [(0,1), (0,1), (0,1), (0,1)]
rangesRd = [(0,31), (0,31), (0,31), (0,31)]
#rangesWr = [(0,1), (0,1)]
rangesWr = [(0,31), (0,31)]
verbose = True
for c in range(sim.maxCycles):
sim.ok = True
await FallingEdge(sim.clk1x)
# check reads
checksNext = []
for i in range(len(checks)):
rd = checks[i]
if sim.cycle == rd[0]:
port = rd[1]
adr = rd[2]
act = portsRd[port].data()
exp = saveData[rd[2]]
if act != exp:
sim.ok = False
try:
sim.msg(f'* RD MISCOMPARE * port={port} adr={adr:02X} act={act:08X} exp={exp:08X}')
except:
sim.msg(f'* RD MISCOMPARE * port={port} adr={adr} act={act} exp={exp}')
elif verbose:
sim.msg(f'* RD COMPARE * port={port} adr={adr:02X} act={act:08X} exp={exp:08X}')
else:
checksNext.append(rd)
checks = checksNext
# do writes
updatesNext = [] # always only 1 cycle
for i in range(len(updates)):
wr = updates[i]
if sim.cycle == wr[0]:
data.write(wr[2], wr[3])
else:
assert False, f'HUH? should always be this cycle! {sim.cycle},{updates}'
updates = updatesNext
# save current data
saveData = data.readall()
# quiesce?
if sim.cycle >= quiesceCyc:
if not quiesced:
sim.msg('Quiescing...')
quiesced = True
# w0/w1 write coll will give w1 precedence - or make it avoid
aw = [None] * 2
for i in range(len(portsWr)):
portsWr[i].idle()
aw[i] = -1
if not quiesced and randint(1, 10) < 5:
r = rangesWr[i]
aw[i] = randint(r[0], r[1])
d = int(hexrandom(8), 16)
portsWr[i].write(aw[i], d)
updates.append((sim.cycle + 1, i, aw[i], d))
writes[i] += 1
for i in range(len(portsRd)):
portsRd[i].idle()
if not quiesced and randint(1, 10) < 5:
r = rangesRd[i]
ar = randint(r[0], r[1])
while ar == aw[0] or ar == aw[1]:
ar = randint(r[0], r[1])
portsRd[i].read(ar)
checks.append((sim.cycle + 2, i, ar))
reads[i] += 1
await RisingEdge(sim.clk1x)
#printstate_32(sim)
if not sim.ok: # and stopOnFail:
break
sim.msg('Done.')
# idle
for p in portsRd:
p.idle()
for p in portsWr:
p.idle()
sim.msg('Final State')
print(data)
for i in range(len(portsRd)):
print(f'Reads Port {i}: {reads[i]}')
for i in range(len(portsWr)):
print(f'Writes Port {i}: {writes[i]}')
if sim.ok:
sim.msg(f'You has opulence.')
else:
for i in range(10):
await RisingEdge(sim.clk1x)
sim.msg(f'You are worthless and weak!')
assert False, f'[{sim.cycle:08d}] {sim.fail}'
# ------------------------------------------------------------------------------------------------
# ------------------------------------------------------------------------------------------------
@cocotb.test()
async def tb_site(dut):
"""ToySRAM site test"""
sim = Sim(dut)
sim.sdr = True
sim.ddr = False
sim.clk1xPeriod = 1
sim.clk2x = False
sim.maxCycles = 50000
sim.randomIO = True
cfgBase = 0x00000000
ctlBase = 0x00010000
ra0Base = 0x00100000
# init stuff
await initSite(dut, sim)
# start clocks,reset
clkGen = await cocotb.start(genClocksSite(dut, sim))
await cocotb.start(genResetSite(dut, sim))
await Timer(sim.resetCycle + 5, units='ns')
if dut.wb_rst_i.value != 0:
sim.ok = False
sim.fail = 'Reset active too long!'
if dut.io_in.value != 0:
sim.ok = False
sim.fail = 'I/O inputs not zero!'
# config stuff
await configSite(dut, sim)
# monitor stuff
await cocotb.start(coreMonitor(dut, sim))
# do stuff
await RisingEdge(sim.clk1x)
ra = Memory(32, 32)
# write and read ra0 w0/r0
for i in range(32):
adr = ra0Base + i
dat = int(hexrandom(8), 16)
sim.msg(f'Writing Port 0 @{adr:08X} {i:02X}={dat:08X}')
dut.wbs_cyc_i.value = 1
dut.wbs_stb_i.value = 1
dut.wbs_we_i.value = 1
dut.wbs_adr_i.value = adr
dut.wbs_sel_i.value = 0xF
dut.wbs_dat_i.value = dat
ra.write(i, dat)
await RisingEdge(sim.clk1x)
dut.wbs_cyc_i.value = 0
dut.wbs_stb_i.value = 0
while (dut.wbs_ack_o.value == 0):
await RisingEdge(sim.clk1x)
sim.msg(f'Reading Port 0 @{adr:08X} {i:02X}')
dut.wbs_cyc_i.value = 1
dut.wbs_stb_i.value = 1
dut.wbs_we_i.value = 0
dut.wbs_adr_i.value = adr
await RisingEdge(sim.clk1x)
dut.wbs_cyc_i.value = 0
dut.wbs_stb_i.value = 0
while (dut.wbs_ack_o.value == 0):
await RisingEdge(sim.clk1x)
sim.msg(f'Read Data: {dut.wbs_dat_o.value.integer:08X}')
assert dut.wbs_dat_o.value == dat, f'Read data miscompare! exp={dat:08X} act={dut.wbs_dat_o.value.integer:08X}'
# read ra0 r1
for i in range(32):
adr = ra0Base + 0x00004000 + i
sim.msg(f'Reading Port 1 @{adr:08X} {i:02X}')
dut.wbs_cyc_i.value = 1
dut.wbs_stb_i.value = 1
dut.wbs_we_i.value = 0
dut.wbs_adr_i.value = adr
await RisingEdge(sim.clk1x)
dut.wbs_cyc_i.value = 0
dut.wbs_stb_i.value = 0
while (dut.wbs_ack_o.value == 0):
await RisingEdge(sim.clk1x)
sim.msg(f'Read Data: {dut.wbs_dat_o.value.integer:08X}')
assert dut.wbs_dat_o.value == ra.read(i), f'Read data miscompare! exp={ra.read(i):08X} act={dut.wbs_dat_o.value.integer:08X}'
# read ra0 r0,r1 through scan
# control.v
test_enable = dut.io_in[0];
scan_clk = dut.io_in[1];
scan_di = dut.io_in[2];
scan_do = dut.io_out[3]
io_ra0_clk = dut.io_in[4];
io_ra0_rst = dut.io_in[5];
io_ra0_r0_enb = dut.io_in[6];
io_ra0_r1_enb = dut.io_in[7];
io_ra0_w0_enb = dut.io_in[8];
'''
io_ra0_r0_adr = scan_reg_q[127:123];
io_ra0_r0_dat = scan_reg_q[122:91]; // loaded by io_ra0_clk
io_ra0_r1_adr = scan_reg_q[90:86];
io_ra0_r1_dat = scan_reg_q[85:54]; // loaded by io_ra0_clk
io_ra0_w0_adr = scan_reg_q[53:49];
io_ra0_w0_dat = scan_reg_q[48:17];
'''
scanLen = 128
scanHalfPer = 1
noisy = False
sim.msg(f'Starting scan sequences.')
test_enable.value = 1
sim.randomIO = False
# load 0's
sim.msg(f'Writing zeroes...')
scan_di.value = 0
for i in range(scanLen):
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
# check 0's
sim.msg(f'Checking zeroes...')
assert scan_do.value == 0, f'Scanout not 0! {scan_do.value}'
for i in range(1, scanLen):
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
assert scan_do.value == 0, f'Scanout not 0! {scan_do.value}'
# read r0,r1
sim.msg(f'Reading R0@15, R1@16...')
scanIn = '01111' + '11111111111111111111111111111111' + \
'10000' + '11111111111111111111111111111111' + \
'00000' + '00000000000000000000000000000000' + \
'00000000000000000'
sim.msg(f'Scanning in...')
for i in range(scanLen):
scan_di.value = int(scanIn[i])
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
readHalfPer = 50
io_ra0_rst.value = 0
io_ra0_r0_enb.value = 1
io_ra0_r1_enb.value = 1
await Timer(readHalfPer, units='ns')
# adr
sim.msg('Blipping RA0 clk...')
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
# dat
sim.msg('Blipping RA0 clk...')
io_ra0_r0_enb.value = 0
io_ra0_r1_enb.value = 0
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
# capture in scan_reg
sim.msg('Blipping RA0 clk...')
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
sim.msg(f'Scanning out...')
scan_di.value = 0
scanOut = f'{scan_do.value}'
for i in range(1, scanLen):
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
scanOut += f'{scan_do.value}'
sim.msg(f'ScanData={int(scanOut,2):032X}')
sim.msg(f' r0 adr:{int(scanOut[0:5], 2):02X}')
sim.msg(f' r0 dat:{int(scanOut[5:37], 2):08X}')
assert int(scanOut[5:37], 2) == ra.read(15), f'R0 Miscompare! exp={ra.read(15):08X} dat={int(scanOut[5:37], 2):08X}'
sim.msg(f' r1 adr:{int(scanOut[37:42], 2):02X}')
sim.msg(f' r1 dat:{int(scanOut[42:74], 2):08X}')
assert int(scanOut[42:74], 2) == ra.read(16), f'R0 Miscompare! exp={ra.read(16):08X} dat={int(scanOut[42:74], 2):08X}'
sim.msg(f' w0 adr:{int(scanOut[74:79], 2 ):02X}')
sim.msg(f' w0 dat:{int(scanOut[79:111], 2):08X}')
sim.msg(f' cfg:{int(scanOut[111:], 2):05X}')
# write w0
sim.msg(f'Writing W0@15=08675309...')
scanIn = '00000' + '11111111111111111111111111111111' + \
'00000' + '11111111111111111111111111111111' + \
'01111' + '00001000011001110101001100001001' + \
'00000000000000000'
sim.msg(f'Scanning in...')
for i in range(scanLen):
scan_di.value = int(scanIn[i])
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
readHalfPer = 50
io_ra0_rst.value = 0
io_ra0_w0_enb.value = 1
await Timer(readHalfPer, units='ns')
# adr/dat
sim.msg('Blipping RA0 clk...')
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
io_ra0_w0_enb.value = 0
ra.write(15, int('08675309', 16))
# read r0,r1
sim.msg(f'Reading R0@15, R1@16...')
scanIn = '01111' + '11111111111111111111111111111111' + \
'10000' + '11111111111111111111111111111111' + \
'00000' + '00000000000000000000000000000000' + \
'00000000000000000'
sim.msg(f'Scanning in...')
for i in range(scanLen):
scan_di.value = int(scanIn[i])
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
readHalfPer = 50
io_ra0_rst.value = 0
io_ra0_r0_enb.value = 1
io_ra0_r1_enb.value = 1
await Timer(readHalfPer, units='ns')
# adr
sim.msg('Blipping RA0 clk...')
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
if noisy:
sim.msg(f' ScanReg={dut.site.ctl.scan_reg_q.value}')
# dat
sim.msg('Blipping RA0 clk...')
io_ra0_r0_enb.value = 0
io_ra0_r1_enb.value = 0
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
# capture in scan_reg
sim.msg('Blipping RA0 clk...')
io_ra0_clk.value = 1
await Timer(readHalfPer, units='ns')
io_ra0_clk.value = 0
await Timer(readHalfPer, units='ns')
sim.msg(f'Scanning out...')
scan_di.value = 0
scanOut = f'{scan_do.value}'
for i in range(1, scanLen):
scan_clk.value = 0
await Timer(scanHalfPer, units='ns')
scan_clk.value = 1
await Timer(scanHalfPer, units='ns')
scanOut += f'{scan_do.value}'
sim.msg(f'ScanData={int(scanOut,2):032X}')
sim.msg(f' r0 adr:{int(scanOut[0:5], 2):02X}')
sim.msg(f' r0 dat:{int(scanOut[5:37], 2):08X}')
assert int(scanOut[5:37], 2) == ra.read(15), f'R0 Miscompare! exp={ra.read(15):08X} dat={int(scanOut[5:37], 2):08X}'
sim.msg(f' r1 adr:{int(scanOut[37:42], 2):02X}')
sim.msg(f' r1 dat:{int(scanOut[42:74], 2):08X}')
assert int(scanOut[42:74], 2) == ra.read(16), f'R0 Miscompare! exp={ra.read(16):08X} dat={int(scanOut[42:74], 2):08X}'
sim.msg(f' w0 adr:{int(scanOut[74:79], 2 ):02X}')
sim.msg(f' w0 dat:{int(scanOut[79:111], 2):08X}')
sim.msg(f' cfg:{int(scanOut[111:], 2):05X}')
test_enable.value = 0
sim.randomIO = True
await RisingEdge(sim.clk1x)
sim.msg(f'Starting regular sequences.')
# write and read ra0 w0/r0
for i in range(32):
adr = ra0Base + i
dat = int(hexrandom(8), 16)
sim.msg(f'Writing Port 0 @{adr:08X} {i:02X}={dat:08X}')
dut.wbs_cyc_i.value = 1
dut.wbs_stb_i.value = 1
dut.wbs_we_i.value = 1
dut.wbs_adr_i.value = adr
dut.wbs_sel_i.value = 0xF
dut.wbs_dat_i.value = dat
ra.write(i, dat)
await RisingEdge(sim.clk1x)
dut.wbs_cyc_i.value = 0
dut.wbs_stb_i.value = 0
while (dut.wbs_ack_o.value == 0):
await RisingEdge(sim.clk1x)
sim.msg(f'Reading Port 0 @{adr:08X} {i:02X}')
dut.wbs_cyc_i.value = 1
dut.wbs_stb_i.value = 1
dut.wbs_we_i.value = 0
dut.wbs_adr_i.value = adr
await RisingEdge(sim.clk1x)
dut.wbs_cyc_i.value = 0
dut.wbs_stb_i.value = 0
while (dut.wbs_ack_o.value == 0):
await RisingEdge(sim.clk1x)
sim.msg(f'Read Data: {dut.wbs_dat_o.value.integer:08X}')
assert dut.wbs_dat_o.value == dat, f'Read data miscompare! exp={dat:08X} act={dut.wbs_dat_o.value.integer:08X}'
sim.msg('Done')
for i in range(10):
await RisingEdge(sim.clk1x)