ARM LPC21XX 产生蜂鸣测试仿真,已经完好,可直接start.

高速PCB设计资料，很好的东西，推荐下载-High-speed PCB design data, very good things, recommended download

msp430f169 UASRT操作 430单片机有丰富的外围模块其中USART模块可以工作在i2c spi,uart等模式-430 Singlechip msp430f169 UASRT operation has a wealth of external modules which can work in the USART module i2c spi, uart, such as model

Ps2键盘驱动程序，用C51单片机驱动PS2键盘接口

基于MCS- 51 单片机的洗衣控制系统, 控制面板由按键、指示灯和LED 显示器组成。 按键选择洗衣机工作方式, 指示灯配合按键工作, LED 显示器则显示洗衣机洗涤和脱水时 间。洗衣机的整体电路模块包括键盘矩阵、指示灯、电动机控制及电源电路。控制程序设计 包括定时中断服务程序、外中断服务程序及主程序。-Based on MCS-51 SCM laundry control system, control panel by the button, LED indicator light and display components. Button to choose washing machines work, light work with the button, LED display shows time washing machine washing and dehydration. Washing the overall circuit module includes a keyboard matrix, light, motor control and power circuit. Control program design includes interrupt service routine from time to time, outside the interrupt service routine and the main program.

MCS-51单片机有5个中断源，其中两个是由-INT0、-INT1引脚输入的外部中断源；另外三个是内部中断源即由T0、T1的溢出引起中断和串行口发送完一个字节或接收到一个字节数据引起中断。触发外部中断有两种方式，即下降沿引起中断或低电平引起中断。当编程TCON中的ITi（i=0、1）为1时，则引起触发的方式为边沿触发方式，反之(ITi=0)为低电平触发方式。每个中断源的中断请求能否得到响应要受两级“开关”的控制，即一个总“开关”-MCS-51 single-chip has five interrupt sources, two of which are by-INT0,-INT1 pin input external interrupt source the other three internal interrupt sources from the T0, T1 overflow caused by the disruption and serial port sending or receiving end of a byte to a byte of data caused by interruption. Triggered external interrupt has two modes, namely, falling edge or low-level disruption caused disruption caused. When programming TCON in ITi (i = 0,1) for the 1:00 has been the subject of a way to trigger the way to the edge of the trigger, on the contrary (ITi = 0) for low-level trigger mode. Each interrupt source interrupt request can be subject to levels in response to

this is a source code for usinf sd card with PIC

上位机采用vb编程,实现与多台s7200的自由口通信.-Host computer using vb programming, with more than the freedom of the mouth communication s7200.

针对51单片机的中断触发按键的程序，利用P3.2口接行列按键。-For 51 single-chip key interrupt to trigger the process, I then use the ranks of P3.2 button.

自己写的秒表程序，六位数码管扫描方式，精度可再提高-write his stopwatch procedures, six digital tube scan mode, the accuracy can be increased

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