Singlechip C8051F9XX SMbus sample programs

超声波检测C代码源程序，单片机嵌入式软件程序设计-Ultrasonic testing C code source, single-chip embedded software programming

基于等精度测频原理，设计的等精度频率计，测试结果很精确，达到0.01HZ。-Such as the accuracy of frequency measurement based on the principle of design, such as precision frequency meter, test results are accurate to 0.01HZ.

1.将P1.0～P1.3接开关，将P1.4～P1.7接发光二极管。依据P1.0～P1.3开关状态控制P1.4~P1.7发光二极管点亮。 2.将P1.0～P1.7全部接发光二极管，开始P1.0、P1.5点亮，左循环50次后P1.1、P1.4点亮；右循环30次，循环往复。-1. P1.0- P1.3 will then switch to P1.4- P1.7 access LEDs. P1.0- P1.3 based on state control switch P1.4- P1.7 LED lights. 2. P1.0- P1.7 will take all LEDs started Schematic, P1.5 lit, the left circle after 50 P1.1 and P1.4 lit; Turn right circle 30 times repeated.

ADC0809单通道电压转换＋1602液晶显示-Single-channel voltage converter ADC0809 LCD+1602

ATMEGA128的PCF8536驱动程序，对自己编写端口驱动的同志有很大的帮助！-ATMEGA128 the PCF8536 driver to prepare for their comrades-driven port of great help!

用51控制的电子时钟，DS1302作为时钟，12864作为显示，是一款不错的钟表程序。-51 control with electronic clock, DS1302 as a clock, 12864 as a show that is a good watch procedures.

51 mcu display programme-51 mcu display program

atmel官方的at91sam7x256芯片在iar编译环境下的全部演示代码，以工程方式提供。-official at91sam7x256 atmel chip iar build environment in the whole of the demonstration code to the project provided.

39LF040单片机片外flash读写程序-39LF040 single-chip-chip flash program to read and write

AVR单片机上跑的MMC卡加FAT16文件系统的例程-AVR run MMC Cagayan FAT16 file system routines