PIC单片机AD转换，程序C源代码附上，供参考-PIC microcontroller AD conversion, the program C source code attached for reference

PIC Ad转换程序实现A/d转换功能，A/d采用中断方式。该程序通过单片机的RA2模拟通道送入一直流电压(PIC Ad conversion program to achieve A/d conversion function, A/d interrupt mode. The program sends a DC voltage through the RA2 analog channel of the microcontroller.)