MCU 8051 series, buzzer sound code! 8051 series MCU, audible buzzer code!

简单实用的单片机CRC快速算法-simple and practical algorithm for fast MCU CRC

数码管显示，希望和 大家交流，将这个程序进行该进。-Digital tube display, hopes and U.S. exchanges, will this process of the Progressive.

串行flash 25vf020 驱动程序的定义-Serial flash 25vf020 definition driver

c8051f020的fyd12864 c程序 keilc-C8051F020 s fyd12864 c procedures keilc

51单片机+rtl8019的tcp/ip协议栈,仿真环境proteus.-51 microcontroller rtl8019 the tcp/ip protocol stack, simulation environment proteus.

modbus485通信协议C程序，经修改已用于项目，熟悉后修改部分参数即可用于485通信相关项目。-modbus485 communication protocol C program, as amended, have been used for the project are familiar with some parameters after the change can be used for 485 telecommunications related projects.

利用HD66421实现灰度字符显示，keilC51编译环境-HD66421 realize the use of gray-scale character show, keilC51 compiler environment

数码时钟显示，用8位LED软件译码动态显示，P0为字段码,P2为位选码，数码管共阳， key0为位选键；key1为加“1键；key2为减“1”键。-Digital clock display with 8 LED dynamic display software decoding, P0 code for the field, P2 election code for the digital, digital tube were positive, key0 bond election for the position key1 to add " 1 button key2 to reduce the" 1 " button.

交通灯控制的简单程序，通过此程序，可以实现简单的交通灯控制设置-Traffic lights to control a simple process, through this procedure, you can realize a simple control set of traffic lights

用５１芯片控制CF卡的技术文章，对广大５１开发者具有参考价值-control CF card chip technology articles, the majority of 51 developers have reference value