单片机80c51的各类小程序的代码，适合初学者参考，在开发板上做实验...

凌阳单片机模拟SPI总线的时许函数,这是本人使用过的。-Sunplus MCU simulate SPI bus function

20键PS2小键盘中断服务程序-20 keys PS2 small keyboard interrupt service program

本代码为本人用msp430单片机开发中频电源时所写的msp430单片机实现SPWM输出的源代码。-I used this code for the development msp430-IF single-chip power MCU msp430 written the source code of SPWM output.

pcf s I2C softpake ,form zlgmcu.com

TLC5618 D/A 输出-Programmable DoubleChannel12-bit DACTLC5618in D/A output

单片机P1口与4个按键连接，用于信号幅度和频率调节操作键。单片机P0、P2.7、P3.6(-WR)与DA0832、2个741(运放)连接构成波形信号输出电路。 编程使波形信号输出电路输出正弦波信号，并且可通过操作键调节信号的幅度和频率。幅度和频率调节级别从0~10，共11个等级。 -Singlechip P1 I connect with the four buttons for the signal amplitude and frequency adjustment operation keys. Singlechip P0, P2.7, P3.6 (-WR) and DA0832, 2 months 741 (operational amplifier) to connect constitute waveform signal output circuit. Programming so that waveform signal output circuit output sine wave signal, and can be operated keys adjust the signal amplitude and frequency. Amplitude and frequency adjustment level from 0 ~ 10, a total of 11 grades.

完全用C语言编写的C51单片机多任务操作系统,任务调度基于主动放弃,特别适合STC单片机.-Entirely in C language C51 single-chip multi-tasking operating systems, task scheduling based on the initiative in giving up, and are particularly suited Singlechip STC.

This code implements the basic functions for an I2C slave device using the SSP module. All I2C functions are handled in an ISR. Bytes written to the slave are stored in a buffer. After a number of bytes have been written, the master device can then read the bytes back from the buffer.

MSP430 I2C模块与EEPROM的接口汇编程序-MSP430 I2C interface module with EEPROM assembler

IEEE754 浮点数与半浮点数相互转换-IEEE754 floating-point and semi-floating-point conversion between