USB鼠标，已经通过PDIUSBD12控制芯片测试，KEIL编译…

Keil 51下的倒计时， 秒表程序-Keil 51 under the countdown, stopwatch procedures

VB6.0小程序控制单片机P1口8位LED.很好用的-VB6.0 small program P1 mouth Singlechip 8 LED. Well used

c8051f单片机外接ht1380，关于时间的读取，设置-c8051f MCU external ht1380, on the time to read, set

* 功能：运行RTC进行计时，将所时间值不断的通过串口向上位机发送，并把秒的值输出数码管D1 * 上显示。上位机运行EasyARM软件，在串口发送/接收窗口观察。 * 说明：* 通讯波特率115200，8位数据位，1位停止位，无奇偶校验。-* Function: RTC to run for a time, the time value will be constant upward through the serial-bit machine to send, and seconds values D1* output digital tube display. PC running EasyARM software serial port to send/receive window of observation.* Description:* 115200,8 bit baud rate of communication data bits, 1 stop bit, no parity.

C51很好的IO模拟串口程序，也称软件UART。只需用一个定时器，实现中断接收。程序编写得很规范，有很多个晶振频率和串口频率可选。是一个比较好的软件串口程序。-C51 a good simulation of serial IO program, also known as the software UART. Just use a timer to achieve interrupt reception. Programming very standardized, there are many a crystal oscillator frequency and the frequency of an optional serial port. Is a relatively good software serial programs.

U2270B，对U2270B芯片进行了详细介绍。-U2270B, on U2270B chip described in detail.

这是一个读取ID卡的源代码，仅依靠8052的时钟读取125K频率的ID卡。-This is an ID card read the source code, only 8,052 on the clock read 125K frequency ID cards.

C code for DS1302 RTC control

该数据包包含了 73x_Examples.rar---------------str731的库函数 STR73xF.pdf--------------------芯片介绍 str73xfreference.pdf-----------芯片编程手册 73x_FP.rar---------------------FLASH烧写程序 Use_lib_manual.pdf-------------库函数使用说明 库函数包含了各种外围设备的例程.-the packet contains 73x_Examples.rar--------------- str731 library functions STR73xF.pdf-------------------- Chip introduced str73xfreference.pdf----------- Chip Programming Manual 73x_FP.rar--------------------- FLASH burning procedures Use_lib_manual.pdf------------- library functions use Note the function includes a variety of external equipment routines.

直流电机的闭环控制c51 原代码，编译通过。-Motor closed-loop control decoder source code, compile.