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将电源配置写入UCD9240 Flash后 第一rail输出时有时无

Other Parts Discussed in Thread: UCD9240

将电源配置写入UCD9240 Flash后, 掉电后重新上电第一rail(1.2V)输出时有时无。能否帮忙分析是什么问题. 原理图请参考附件。

FPGA_V110_20130408.pdf