带keil工程。调试成功，高精度adda转换芯片。-Works with keil. Debug successful, high-precision conversion chip Adda.

单片机AT89C51控制AD转换器，程序包含了数字信号和电信号的转换-Microcontroller AT89C51 controls the AD converter, the program contains a digital signal and the signal conversion

编程用的keil，板子是百为的stm32f103zet6，实现的功能是ADDA，即将PC.01端口采集到的模拟信号经过ADC转换后有经过DAC在PA.04作为输出-Programming using keil, the board is one hundred of the stm32f103zet6, the function is ADDA, about PC.01 port capture analog signal through the ADC conversion has been

pcf8591驱动代码（51 版本），adda转换-the descpription of pcf8591