电子钟表

STM32f10x ARM USB 通信源代码 库函数源码 例子程序-STM32f10x ARM USB communications source code example program source library

51单片机的以太网 Ethernet 源程序和原理图-51 MCU Ethernet code and Schematics

以上程序使用PIC12C508单片机，内部4MHZ时钟，4脚输入50HZ脉冲信号，7，6，3脚（GP0，GP1，GP4端口）为输出口。其中渐变部分是让灯慢慢的变亮（或灭--It uses PIC2C508 SCM, 4MHZ clock, 4 port is for inputting 50HZ signal, 7/6/3 port for output.

C51与HT9170和HT9200接口程序(双音多频)-C51 with HT9170 and HT9200 interface program (DTMF)

一款RENESAS单片机实现串口通讯的实例。包含头文件，可直接使用。-RENESAS realize a single-chip serial communication example. Contains the header files can be used directly.

NRF905无线收发模块详细资料，其中的源码本人已测，让初学者也能迅速入门。-Wireless transceiver modules NRF905 detailed information on the source of which I have measured, so that beginners can quickly entry.

c51的实例，学习时做的，看你们有没得用哈-C51 example, learning when to do to see you have not to use Kazakhstan

利用51单片机及其接口电路模拟DMA的控制过程，由于数据的传输实际上不经过CPU而直接由A/D转换芯片传送到存储器，从而实现了数据的高速传送。-The use of 51 single-chip circuit simulation and its interface DMA control process, because the data transmission does not actually read the CPU and directly from the A/D conversion chip is sent to memory, thus realizing high-speed data transmission.

LA1823+LC72131收音机子程序.-LA1823+ LC72131 Radio subroutine.

红外遥控接收 ORG 0000H LJMP START 转入主程序 ORG 0010H START: MAIN: JNB P2.2,IR LJMP MAIN 以下为进入P3.2脚外部中断子程序，也就是解码程序 IR: MOV R6,#9 SB: ACALL DELAY882 调用882微秒延时子程序 JB P2.2,EXIT 延时882微秒后判断P3.2脚是否出现高电平如果有就退出解码程序 DJNZ R6, SB 重复10次，目的是检测在8820微秒内如果出现高电-infrared remote control receiver ORG 0000H LJMP START into main program ORG 0010H START : MAIN : JNB P2.2, IR LJMP MAIN below to enter P3.2 foot external interrupt subroutine, which is decoding procedures IR : MOV R6, SB# 9 : Calling ACALL DELAY882 882 microsecond delay subroutine JB P2.2, EXIT 882 microsecond delay after the judgment whether there P3.2 feet to I quit if decoding procedures DJNZ R6, SB repeated 10 times, the purpose is to test if within 8,820 microsecond high