I2c classic procedure

MCS-51单片机结构。由ATMEL公司生产的89C51将EPROM改成了4K的闪速存储器，他们的结构大同小异，本章将对8051单片机的结构作一介绍。-MCS-51 single-chip structure. ATMEL Corporation by 89C51 production will be replaced with 4K of EPROM flash memory, they more or less the same structure, this chapter will be the structure of 8051 for an introduction.

GPS定位信息的单片机控制显示系统，主要讲述GPS模块常用的NMEA0183命令，并且给出单片机的访问-GPS positioning information display system of single-chip control, mainly on the GPS module used NMEA0183 orders, and gives access to single-chip microcomputer

Verilog实现的DDS正弦信号发生器和测频测相模块，DDS模块可产生两路频率和相位差均可预置调整的值正弦波，频率范围为20Hz-5MHz，相位范围为0°-359°，测量的数据通过引脚传输给单片机，单片机进行计算和显示。-Verilog realize the DDS sine wave signal generator and frequency measurement module test phase, DDS module can generate both frequency and phase difference can be preset to adjust the value of sine wave, frequency range of 20Hz-5MHz, phase range of 0 °-359 ° , measurement data and transmit them to the single-chip pin, single-chip microcomputer to calculate and display.

本人所做项目中用51系列单片机(STC89C58RD)对OCMJ8*15B液晶屏进行数据写操作时所写的配套源代码,可以直接在keil7.0以上的版本中嵌入开发！应该说本程序有很高的实用价值（本人开发的产品已应用于实际工业控制中）-I conducted a series of 51 projects using SCM (STC89C58RD)* 15 OCMJ8 B LCD screen for data write operation written by supporting source code, keil7.0 directly on the above versions embedded development! It should be said that this program has high practical value (I development of the product has been used in practical industrial control)

采用51系列单片机硬件电路对TEA5767收音模块控制源码-51 Series single-chip hardware circuit of TEA5767 radio module control source

S3C2442的起动代码程序等。有较大的实用价值-S3C2442 starting code procedures. Have a greater practical value

支持键盘双击的C51程序，用于单片机辨别键盘双击-support the C51 procedures for identifying keyboard click MCU

AD转换器MAX127驱动程序（ KEIL C51 ）-AD converters MAX127 driver (KEIL C51)

usb固件程序LCD1602_GPIF_Firmwire-usb firmware LCD1602_GPIF_Firmwire

msp430f149键盘中断程序，用端口中断。通过实验验证-msp430f149 keyboard interrupt procedures, using ports interruption. Experimental verification