该程序是关于四线制触摸屏控制器AD7843的底层c语言源代码，可以直接使用该程序即可。,The program is on the four-wire touch screen controller AD7843 the bottom of c language source code, you can direct the use of the procedures.

AD7843控制，启动7843采样，计算，代码经过测试，非常稳定-AD7843 control, start the 7843 sampling, calculation, code has been tested, very stable