为keil c51编写自己display接口

基于AT89S51单片机和步进电机的国旗升降系统，带语音录放功能。汇编语言编写。-AT89S51-based single-chip stepper motor of the national flag and take-off and landing system, with voice recording function. Compiled languages.

u-boot源代码，不支持lcd(440BX)-u-boot source code and does not support lcd (440BX)

自己写的一个用在单片机串口通讯中的环形队列缓冲区管理模块。-himself wrote a serial microcontroller used in the communications ring buffer queue management module.

VC++下与C8051F340单片机的USB通信程序,采用批量传输协议! 可作为C8051F340开发USB的例程.

提供一个小弟的程序,有点笨,请各位看后,不要见笑.-provide a younger procedures, a bit stupid, you see, not laughed at.

一个简单使用的测试AVR单片机的程序，对初学者颇有帮助的哟。-use of a simple test AVR procedures for beginners quite helpful yo.

UCOS――FOR――UNSP2，ucos在凌阳单片机上的移植。-UCOS-- FOR-- UNSP2, Sunplus CENTER SCM in the transplant.

8279键盘单片机c语言编码，很实用哦。-8279 keyboard Singlechip c language coding, it is practical Oh.

eeprom24c02程序代码，经测试可以使用，分享一下-eeprom24c02 program code, have been tested can use, share

电子秒表的设计 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。 2、有关系统定时方法： PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号, 频率：f=1.1931816MHz。 定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。 输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断-Electronic stopwatch design one, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption