TLC549在51单片机的模数转换，代码全部使用C语言编写，内容比较全面，-TLC549 in the 51 SCM analog-digital conversion, the code all use the C language, content more comprehensive,

使用AD转换芯片TLC549对模拟电压进行数字转换，结果处理为3位十进制数，通过ZLG7290显示。-Using the AD converter chip TLC549 digital conversion of the analog voltage, results processing for the three decimal through ZLG7290 display.