sTC系列单片机内部AD的应用 STC89LE52AD、54AD、58AD、516AD这几款89系列的STC单片机内部自带有8路8位的AD转换器，分布在P1口的8位上，当时钟在40MHz以下时，每17个机器周期可完成一次AD转换。 -STC series single-chip internal AD Application STC89LE52AD, 54AD, 58AD, 516AD that several 89 series of STC has its own single-ch

ichatV1.89文字版（修改）将就着-ichatV1.89 text version (modified) will use with

后三,后二,交集大底工具，10中89不是梦-After three, after the two large base, intersection

基于89c51的数字电压表，adc0808模数转换，1602液晶显示电压-Based on 89 c51 digital voltmeter, adc0808 modulus conversion, 1602 liquid crystal display voltage