本文件是C8051F040AD采样及串口测试程序；AD输入端子可输入4路AD(AIN0--AIN3)，另有1路可测量片内温度，还有1路可测量高压差分放大器的输入（高压差分放大器由J7接入，6路采样值都通过串口发送出去，在串口调试助手上看观察其值。-This document is C8051F040AD serial sampling and testing procedures　AD input can enter the 4-AD (AIN0- AIN3), and another 1-chip temperature measurable way, there is a measurable way high-voltage differential amplifier input (high-pressure differential Amplifiers from J7 access, 6-channel sample values are sent through the serial port, serial debugging aides in the observation point of view of its value.