DOM MB V5 Diagnosis
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Board ID:
V5 00410
Source:
Azriel Goldschmidt
Symptoms:
Fails to boot up after successful CPLD and EPC8 load.
Analyst(s):
G. Przybylski
Analysis Procedure(s):
Reload CPLD, and EPC8. all
on still fails. Load flash via JTAG.
Connect serial port. Boot to flash. See 5 "dots", but not boot
message.
observe nCONFIG, nSTATUS, nPOR, and INIT_DONE. Waveforms reasonable
before nPOR goes high, but suggest download doesn't complete. Arthur
adds diagnostics
to IceBoot to isolate the stage at wich boot fails. Symptoms
suggest bad EPXA4
Root cause:
TBD (on hold)
Mitigation:
TBD
Disposition:
TBD
Any Other Information:
Traveler