让实验板上八个数码管循环显示0

某公司安装了电子门，要设计门禁系统： 公司的雇员可以凭借密码、胸卡或指纹进入公司 计算机根据雇员的验证方式对其身份进行验证 管理员在监控室可以通过按钮直接开启电子门 访客可以按门铃请求进入，由管理员为其放行 管理员可以为新职员设置密码 -A company to install an electronic gate, to design access control systems: the company" s employees can rely on passwords, badges or finger into the company computer, authentication of the employee to verify their identity can be an administrator in the control room directly through the button to open electronic gates that visitors can rang the doorbell of the request to enter an administrator can be released by the administrator of its staff to set a password for the new

一书的配套光盘中的程序---北航---周航慈-著- of a book on CD-ROM in the matching process BUAA------ Hang Tsz week- a

用78F9222做的电热水器程序，恒温控制，汇编语言-78F9222做cavity using changchu热Ecuador器most satirical温序clamp ， ，制met Pang Sung Sa

nokia5110 48*84 液晶屏开发资料及各单片机例程，希望对大家有帮助-nokia5110 48* 84 LCD screen development information and the microcontroller routines, we want to help

此程序主要测试50HZ~3KHZ音频范围幅频特性测试程序.程序包含主控程序和显示程序.-This procedure tests the scope of 50HZ ~ 3KHZ audio amplitude-frequency characteristics of testing procedures. Procedures included control procedures and display program.

一种能产生宽调节占空比的PWM芯片，适合做逆变电源。-Can generate a duty cycle of the PWM chip width adjustment, suitable for power inverters.

AVR驱动18B20例子 AVR驱动18B20例子-AVR-driven examples of AVR drive 18B20 example 18B20

51单片机读写SD卡程序，经过测试，已在产品上使用-51 SCM SD card reader program, tested, used in products

本人上传的是 单片机 利用定时器演奏音乐.asm 源代码 -I upload using the single-chip timers playing music. Asm source code

与epson m-150打印机通信，但是有些错误，希望高手指正一下-With epson m-150 printer communication, but some mistakes, hope you can correct me about