four real "Simple 4P Responder" program file name : "MCD

这是本人学习avr的一点成果吧{ 硬件mega8l，8个led共阳极接到PORTD。3位拨码开关接到PINB2,PINB1,PINB0,选择显示内容，PINC4接方向开关，使得正反向摇动都显示正向字，每次显示4个8X8点阵汉字（自己编制的），内附：原理图。实物图片，给有兴趣的朋友-This is my point to learn the outcome of avr bar (hardware mega8l, 8 Ge led a total of anode received PORTD. 3 DIP switches received PINB2, PINB1, PINB0, choose to display the content, PINC4 then switch the direction of making the pros and cons to the rock show that positive words, each show four 8X8 dot matrix characters (self-compiled), the enclosing : Principle diagram. Physical picture, to interested friends

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

c8051f340 USB传输 固件驱动， c8051f340 USB传输 固件驱动，-transmission c8051f340 USB drive firmware, c8051f340 USB transmission firmware-driven,

ATmega16程序，控制1602液晶，只用了六个I/O口，我仿真过的，没有错误，而且还带Pretues图。-ATmega16 procedures, controls 1602 LCD with only six I/O ports, I" ve simulation, there are no errors, but also with Pretues map.

24C256技术资料。读写24c256 标准程序段-24C256 technical information. 24c256 paragraph to read and write standard procedures

用单片机做的数字电子钟，12864＋ds18b20+ds1302,有纪念日提醒功能。-Make use of single-chip digital electronic clock, 12864 ds18b20+ Ds1302, the anniversary has reminded function.

用DSP控制步进电机,DSP选用TMS320C240,-Stepper motor with DSP control, DSP selection TMS320C240,

简易频率计，一个中断，一个定时器，适合初学者学习中断、定时器，动态扫描显示。-Simple frequency meter, an interrupt, a timer, suitable for beginners to learn interrupt, timer, dynamic scan shows.

zlg7289是一款很好的键盘驱动芯片，本程序用msp430单片机驱动。-zlg7289 is a very good keyboard driver IC, the procedure used MSP430 Singlechip drive.

基于MSP430F149单片机的SDRAM控制程序设计-Based on the MSP430F149 MCU SDRAM control procedures designed