Re: 使用ADC時配合FVR的問題

作者 jason680 於 2018年10月01日 00:42:33
規格書
http://ww1.microchip.com/downloads/en/DeviceDoc/40001574C.pdf

TABLE 30-8: PIC16(L)F1938/39 A/D CONVERTER (ADC) CHARACTERISTICS:(1),(2),(3)
的註解中,有提到...

4. ADC Reference Voltage (Ref+) is the selected reference input, VREF+ pin, VDD pin or the FVR Buffer1. When the FVR is
selected as the reference input, the FVR Buffer1 output selection must be 2.048V or 4.096V, (ADFVR<1:0> = 1x).

來自: http://www.microchip.com.tw/newbb/viewtopic.php?forum=1&topic_id=22422&post_id=78742