上电后,有一定概率读不到正常数据。
单片机复位也无效,需要ads8688断电,重新上电,才能有效复位。
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没有上电时序要求,但是要求供电电压AVDD and DVDD都稳定后再对ADC操作。
您的现象也是 上电后不能正确读取AD转换数据,但是可以读写寄存器,对寄存器操作吗?