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TPS65910A3A1供电,AM3354上电没有反应?

Other Parts Discussed in Thread: AM3354, TPS65910

TI,您好。我用AM3354做一款设计,电路参考TMDXICE3359原理图。目前不能启动,没有打印输出CCCCC,示波器测量UART0.TX没有信号。用示波器测量PWRHOLD和nRESPWRON时序正常(tdSONT=16.8ms)。