用于步进电机的驱动.可以通过输出信号来控制步进电机的转速和角度控制....

基于AVERLOGIC公司的AL37204的多路车载分割器-AL37204-based company

时钟芯片PCF8563 C51程序，本人测试通过-Clock Chip PCF8563 C51 procedure, I test

MSP430单片机的实时多任务操作系统c源代码-MSP430 real-time multi-tasking operating system source code c

arm7 lpc2132 GPIO driver for beep

DTMF编码芯片HT9200的51接口程序。输入参数R2表示发送数据个数，输入数据与发送数据与DTMF码的关系:00H-0 01H-1 02H-2 03H-3 04H-4 05H-5 06H-6 07H-7 08H-8 09H-9 0AH-A 0BH-B 0CH-C 0DH-D 0EH-* 0FH-#。详细说明参考文件内-DTMF encoder chip HT9200 51 interface program. R2 said input parameters to send data distribution, data entry and send data with the DTMF code : 00H-0 01H- 02H-2 Mr- 3 in the 04H-4 05H-5 06H-6 07H-7 08H-8 7-9 0AH-A 0BH- 0CH B-C 0DH-D 0EH-* 0FH-#. Detailed information paper

实用红外遥控接收，解码程序。已经通过调试。-Practical infrared remote control receiver, decoding procedures. Have passed testing.

用12C887制作的电子时钟,用89C51单片机读取并显示.-12C887 produced with electronic clock 89C51 single-chip reader and displayed.

SD卡资料大全，在网上找了好久的，供大家开发SD卡查询。-SD card Sourcebook, the Internet looking for a long time, and for all to develop SD card queries.

三相无刷电机的PWM控制，通过改变下桥臂的占空比来改变电机的转速。-PWM three-phase brushless motor control, by changing the duty cycle under the bridge arm to change the motor speed.

x5045的C51程序，实现看门狗和E2PROM功能-x5045 C51 procedures, and the watchdog function of E2PROM