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OMAP-L138+TPS65070 Power Sequence?

novar luo
Prodigy 20 points
Other Parts Discussed in Thread: OMAP-L138

custom pcb board,XDS560 PCI

first,I can't connect Jtag to Board.then I check the OMAP-L138 K14 pin(RESETn) and found that wave is wrong.please see figure follow:

I have a question: Can the error of Power Sequence cause this result?