litex/lib/sata/test/command_tb.py

63 lines
1.7 KiB
Python

import random
from migen.fhdl.std import *
from migen.genlib.record import *
from migen.sim.generic import run_simulation
from lib.sata.common import *
from lib.sata.link import SATALink
from lib.sata.transport import SATATransport
from lib.sata.command import SATACommand
from lib.sata.test.bfm import *
from lib.sata.test.common import *
class TB(Module):
def __init__(self):
self.submodules.bfm = BFM(phy_debug=False,
link_random_level=0, transport_debug=True, transport_loopback=False)
self.submodules.link = SATALink(self.bfm.phy)
self.submodules.transport = SATATransport(self.link)
self.submodules.command = SATACommand(self.transport)
def gen_simulation(self, selfp):
self.bfm.hdd.allocate_mem(0x00000000, 64*1024*1024)
selfp.command.source.ack = 1
for i in range(100):
yield
for i in range(32):
selfp.command.sink.stb = 1
selfp.command.sink.sop = (i==0)
selfp.command.sink.eop = (i==31)
selfp.command.sink.write = 1
selfp.command.sink.address = 1024
selfp.command.sink.length = 32
selfp.command.sink.data = i
yield
while selfp.command.sink.ack == 0:
yield
selfp.command.sink.stb = 0
for i in range(32):
yield
selfp.command.sink.stb = 1
selfp.command.sink.sop = 1
selfp.command.sink.eop = 1
selfp.command.sink.write = 0
selfp.command.sink.read = 1
selfp.command.sink.address = 1024
selfp.command.sink.length = 32
yield
while selfp.command.sink.ack == 0:
yield
selfp.command.sink.stb = 0
while True:
if selfp.command.source.stb:
print("%08x" %selfp.command.source.data)
yield
#dma_dump = self.bfm.command.dma_read(1024, 32*4)
#for d in dma_dump:
# print("%08x" %d)
if __name__ == "__main__":
run_simulation(TB(), ncycles=512, vcd_name="my.vcd", keep_files=True)