我用tps65381给mcu芯片供电，使用SPI给65381喂狗，正常运行。
现在我的产品要升级程序，上电后，仿真器给mcu烧写程序，此时由于没有spi信号发出，导致cpu不能正常喂狗，从而导致65381的NRST复位我的芯片，从而导致程序无法下载。不知道ti砖家对此有没有什么好的建议。
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