Read 51 keys, and return the computer serial port debugging assistant

跑马灯流动闪亮控制程序，可按键控制启动、停止、改变流动方向等。-Marquee mobile flashing control procedures, key control can start, stop, change the flow direction.

该例程是利用MC9S12DG128中TC0和TC7通道共同完成模拟PWM功能的实例。-The routine is the use of MC9S12DG128 the TC0 and TC7 simulated co-channel PWM function instance.

详细分析了CAN驱动源码，中文注释，附SJA1000电路连接图-analysis the source code of can bus driver， and do comment in Chinese，the circuit of SJA1000 is added，too！

MSP430的CRC程序设计实现，位运算和查表法-MSP430 realize the CRC program design, digital computing and look-up table method

lcd12864 的串行驱动程序，于keil uvision 开发平台。-lcd12864 serial driver, in keil uvision development platform.

51单片机系统中运用电脑上的大键盘！ Keyboard接线 PS/2--------51 1 DATA------P3.4 3 GND 4 VCC 5 CLK-------P3.3 接在51的外部中断，触发方式为低电平 AT89x51使用12M Modified by Shen Peng! Postgraduate of 2003, 7 Department Harbin Engineering University-51 microcomputer system on the use of the computer keyboard! Keyboard Connection PS/2--------51 a DATA------ P3.4 three GND 4 VCC five CLK------- P3.3 Then in the 51 external interrupt trigger mode for low-level AT89x51 use 12M Modified by Shen Peng! Postgraduate of 2003, seven Department Harbin Engineering University

十进制转为BCD码的三种算法 详细请看程序，谢谢。-metric BCD to the three algorithms See detailed procedures, thank you.

51+sl811读写U盘的源程序，包括USB驱动和fat文件读写程序代码-51 sl811 U-writable disc source, including the USB drive and fat document literacy program code

倒计时器 A51源程序 -countdown for A51 source

LT_1B msp430开发板例子程序－UART_U192-LT_1B msp430开发板例子程序－UART_U19200