C8051f020单片机内部FLASH读写程序

频率测量程序，都是正在产品的使用中，高低频自动切换显示-Frequency measurement procedures, are all products in use, high-low-frequency automatic switching display

基于C51的SHTXX温湿度传感器的驱动程序，可移植性好，模拟IIC协议-C51 based on the temperature and humidity sensors SHTXX driver, portability, and simulation IIC agreement

13.5.2单总线数字温度传感器，希望对大家有帮助-13.5.2 Single-Wire Digital Temperature Sensor, in the hope that everyone has to help

能实现功能有：显示年、月、日、星期、时、分、秒、阴历月日、温度，共21位数码管。其中星期和阴历月日能根据公历自动计算改变，到2050年之前有效。温度可以测量从-10到40℃之间的温度。还可以设定两个定时、12/24小时显示、自动亮暗切换的时间等。 电路只用了两片IC，一片M48，另外一片是74LS145，4-10译码器，来扩充端口。具体电路在下面，是PROTEUS画的，给个图片做参考-To achieve functions: Display year, month, day, week, hour, minute, second, lunar month, the temperature, a total of 21 digital tube. One week and the lunar month on the Gregorian calendar automatically calculated based on changes effective prior to 2050. Can measure temperatures from-10 to 40 ℃ temperature between. Also can set two time, 12/24 hour display, automatic light switch dark time. Circuit used for only 2 IC, an M48, the other is a 74LS145 ,4-10 decoder to expand the port. Specific circuit in the following is the PROTEUS painting, a reference to a picture

2片显示驱动芯片HT1622的C51底层程序-two display driver chip HT1622 the bottom procedures C51

atmega8单片机开发的MP3播放器,效果和音质都很不错,包括硬件电路,图片,程序在内的全套资料!-Singlechip atmega8 developed MP3 player, effects and sound quality is very good, including the hardware circuit, pictures, procedures, including a full set of information!

this a store management system-this is a store management system

ad0804程序，可实现ad转换，显示，-ad0804 procedures can be realized ad conversion, display,

ads7843是一款4线电阻式触摸芯片，可以制成触摸屏，经调试绝对好用！-ads7843 is a four-lane chip resistor touch, touch screen can be made, absolutely useful debugging!

c8051f350驱动ZLG7290芯片，用于浊度计的开发。-C8051F350 chip ZLG7290 driver for the turbidity of the development.