Xiangfu Liu wrote: > sorry. not clear about this. the origin is '1', it changed from '1' --> '0'
Ah, much better :-) This would then be consistent with a power sequencing problem, e.g., if the FPGA core goes down faster than the NOR. Another explanation could be a communication problem between NOR and the FPGA (excessive clock speed, signal integrity issues, incorrect sequencing of control signals, etc.) > I am try to [power cycle] --> [rending 30 seconds] --> [power cycle] in my m1 > it failure at 7 times. Okay, then it's almost certainly a real NOR corruption. Do you remember what the M1 was doing when you powered it down the last time before the NOR got corrupted ? And was that task accessing the NOR in any way ? Thanks, - Werner _______________________________________________ http://lists.milkymist.org/listinfo.cgi/devel-milkymist.org IRC: #milkymist@Freenode Twitter: www.twitter.com/milkymistvj Ideas? http://milkymist.uservoice.com
