83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
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from migen.fhdl.std import *
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from misoclib.ethmac.common import *
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from misoclib.ethmac.preamble import *
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from misoclib.ethmac.test.common import *
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preamble = [
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0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xD5
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]
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payload = [
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0x00, 0x0A, 0xE6, 0xF0, 0x05, 0xA3, 0x00, 0x12,
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0x34, 0x56, 0x78, 0x90, 0x08, 0x00, 0x45, 0x00,
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0x00, 0x30, 0xB3, 0xFE, 0x00, 0x00, 0x80, 0x11,
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0x72, 0xBA, 0x0A, 0x00, 0x00, 0x03, 0x0A, 0x00,
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0x00, 0x02, 0x04, 0x00, 0x04, 0x00, 0x00, 0x1C,
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0x89, 0x4D, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
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0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
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0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13
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]
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mux = {
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"inserter": 0,
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"checker": 1,
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"both": 2
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}
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class TB(Module):
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def __init__(self, random_level=50):
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sm = self.submodules
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sm.streamer = PacketStreamer(eth_description(8))
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sm.streamer_randomizer = AckRandomizer(eth_description(8), random_level)
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sm.logger = PacketLogger(eth_description(8))
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sm.logger_randomizer = AckRandomizer(eth_description(8), random_level)
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self.comb += [
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self.streamer.source.connect(self.streamer_randomizer.sink),
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self.logger_randomizer.source.connect(self.logger.sink)
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]
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sm.preamble_inserter = PreambleInserter(8)
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sm.preamble_checker = PreambleChecker(8)
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self.mux = Signal(2)
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self.comb += [
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If(self.mux == mux["inserter"],
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self.streamer_randomizer.source.connect(self.preamble_inserter.sink),
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self.preamble_inserter.source.connect(self.logger_randomizer.sink)
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).Elif(self.mux == mux["checker"],
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self.streamer_randomizer.source.connect(self.preamble_checker.sink),
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self.preamble_checker.source.connect(self.logger_randomizer.sink)
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).Elif(self.mux == mux["both"],
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self.streamer_randomizer.source.connect(self.preamble_inserter.sink),
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self.preamble_inserter.source.connect(self.preamble_checker.sink),
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self.preamble_checker.source.connect(self.logger_randomizer.sink)
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)
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]
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def gen_simulation(self, selfp):
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selfp.mux = mux["inserter"]
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print("streamer --> preamble_inserter --> logger:")
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self.streamer.send(Packet(payload))
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yield from self.logger.receive()
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s, l, e = check(preamble+payload, self.logger.packet)
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print("shift "+ str(s) + " / length " + str(l) + " / errors " + str(e))
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selfp.mux = mux["checker"]
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print("streamer --> preamble_checker --> logger:")
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self.streamer.send(Packet(preamble+payload))
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yield from self.logger.receive()
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s, l, e = check(payload, self.logger.packet)
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print("shift "+ str(s) + " / length " + str(l) + " / errors " + str(e))
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selfp.mux = mux["both"]
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print("streamer --> preamble_inserter --> preamble_checker --> logger:")
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self.streamer.send(Packet(payload))
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yield from self.logger.receive()
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s, l, e = check(payload, self.logger.packet)
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print("shift "+ str(s) + " / length " + str(l) + " / errors " + str(e))
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if __name__ == "__main__":
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from migen.sim.generic import run_simulation
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run_simulation(TB(), ncycles=1000, vcd_name="my.vcd")
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