litex/test/test_la.py

import sys
from config import *
from tools import *
from bist import *
from litescope.host.driver.la import LiteScopeLADriver

la = LiteScopeLADriver(wb.regs, "la")
identify = LiteSATABISTIdentifyDriver(wb.regs, "sata_bist")
generator = LiteSATABISTGeneratorDriver(wb.regs, "sata_bist")
checker = LiteSATABISTCheckerDriver(wb.regs, "sata_bist")
wb.open()
regs = wb.regs
###

trig = "now"
if len(sys.argv) < 2:
	print("No trigger condition, triggering immediately!")
else:
	trig = sys.argv[1]

conditions = {}
conditions["now"] = {}
conditions["id_cmd"] = {
	"sata_command_tx_sink_stb"				: 1,
	"sata_command_tx_sink_payload_identify"	: 1,
}
conditions["id_resp"] = {
	"source_source_payload_data" : primitives["X_RDY"],
}
conditions["wr_cmd"] = {
	"sata_command_tx_sink_stb"			: 1,
	"sata_command_tx_sink_payload_write"	: 1,
}
conditions["wr_resp"] = {
	"sata_command_rx_source_stb"			: 1,
	"sata_command_rx_source_payload_write"	: 1,
}
conditions["rd_cmd"] = {
	"sata_command_tx_sink_stb"			: 1,
	"sata_command_tx_sink_payload_read"	: 1,
}
conditions["rd_resp"] = {
	"sata_command_rx_source_stb"			: 1,
	"sata_command_rx_source_payload_read"	: 1,
}

la.configure_term(port=0, cond=conditions[trig])
la.configure_sum("term")

# Run Logic Analyzer
la.run(offset=64, length=1024)

#identify.run(blocking=False)
generator.run(0, 2, 1, 0, blocking=False)
#checker.run(0, 2, 1, 0, blocking=False)

while not la.done():
	pass

la.upload()
la.save("dump.vcd")
###
wb.close()

f = open("dump_link.txt", "w")
data = link_trace(la,
	tx_data_name="sink_sink_payload_data",
	rx_data_name="source_source_payload_data"
)
f.write(data)
f.close()