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OMAPL138和TMS320C6748上电复位的问题

Gang Wu3
Prodigy 40 points
Other Parts Discussed in Thread: TMS320C6748

设计的板子在量产时有15%的OMAPL138和TMS320C6748上电复位不通过,手工复位程序运行正常.用的电源管理芯片是TPS65053RGE.原理见附件.

请问OMAPL138和TMS320C6748上电复位时序有何要求，怎样解决此问题，谢谢！