自己编的C51串口，主要是协议，希望对大家有帮助

基于51平台的串口一扩五芯片GM8125的测试程序，编译环境为Keil C51-on a platform of expanding five serial chip GM8125 testing procedures, compile environment for the Keil C51

各种款式液晶显示程序，包括1602、240180、st7920字库液晶、12232、240128、12864等多款液晶的显示例子，极具参考价值-Liquid crystal display a variety of styles procedures, including 1602,240180, st7920 LCD font, 12232,240128,12864 such as liquid crystal display several examples of great reference value

压力传感器程序 包括UART GPRS SMS PCF8563-Press Sensor Code based at MSP430

this a store management system-this is a store management system

中国广州周立功单片机移植的ucosII 很实用-Guangzhou, China ZLG MCU transplant ucosII very practical

ARM 10 KEYPAD DESIGN

1602LCD 的介绍以及汇编程序，比较详细，内有现成模块，可直接调用-1602LCD the introduction as well as the compilation process in more detail, which has off-the-shelf modules, can be directly called

全速运行程序，可看到串口调试助手的接收区显示“41 42 43 44 45 46 47 48”。手动发送“0102030405060708091011”，打开WATCH窗口可看到50H~5AH地址单元的值为“0102030405060708091011”，请注意50H单元是串口接收数据起始存放地址，70H单元是串口接收数据结束存放地址。-Run the program at full speed, can see the serial debug assistants reception area shows

///*** *** *** * //一、程序说明： //1, 24LC02器件地址是1010000R/W. //2, 数组写入24LC02采取页写方式. //3, 数组code从24LC02读出时采取自由读方式. //4, 采用4.00M晶体。 //5，采用软件I2C。 //二、硬件连接： //1， SDA------->23 pin.(当然你可以任意选择脚位） //2, SCL------->18 Pin.(当然你可以任意选择脚位） //3， PORTB----->数码管的段输出 //4， RD4，RD5，RC6，RC7------->数码管的位输出(数码管为共阴极） -///*******************// A description of the procedures:// 1, 24LC02 device address is 1010000R/W.// 2, write an array to take 24LC02 page write mode.// 3, the array read out the code from the 24LC02 to take a free read.// 4, using 4.00M crystal.// 5, using software I2C.// Second, the hardware to connect:// 1, SDA-------> 23 pin. (Of course, you can choose to pin)// 2, SCL-------> 18 Pin. (Of course You can choose pin)// 3, PORTB-----> digital tube output segment// 4, RD4, RD5, RC6, RC7-------> digital pipe-bit output (digital tube for a total of cathode)

mc51单片机对rtl8019编程,实现ethernet的收发控制.-mc51 Singlechip for RTL8019 programming, realize ethernet transceiver control.