litex/lib/sata/test/bist_tb.py

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from lib.sata.common import *
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from lib.sata import SATACON
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from lib.sata.bist import SATABIST
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from lib.sata.test.hdd import *
from lib.sata.test.common import *
class TB(Module):
def __init__(self):
self.hdd = HDD(
link_debug=False, link_random_level=0,
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transport_debug=False, transport_loopback=False,
hdd_debug=True)
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self.con = SATACON(self.hdd.phy)
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self.bist = SATABIST(self.con)
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def gen_simulation(self, selfp):
hdd = self.hdd
hdd.malloc(0, 64)
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selfp.bist.sector = 0
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selfp.bist.count = 17
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selfp.bist.loops = 1
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while True:
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selfp.bist.write = 1
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yield
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selfp.bist.write = 0
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yield
while selfp.bist.done == 0:
yield
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selfp.bist.read = 1
yield
selfp.bist.read = 0
yield
while selfp.bist.done == 0:
yield
print("errors {}".format(selfp.bist.errors))
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selfp.bist.sector += 1
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selfp.bist.count = max((selfp.bist.count + 1)%8, 1)
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if __name__ == "__main__":
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run_simulation(TB(), ncycles=8192*2, vcd_name="my.vcd", keep_files=True)