小日本用mega8 做的软件模拟USB 转232

就像在嵌入系统中使用C语言替代汇编一样,在嵌入系统中使用RTOS是大势所趋。原因主要是现在在大多数情况下编程效率比执行效率重要（单片机便宜嘛）。但纵观51的RTOS，keil c51 所带的RTX Full 太大（6k多），且需要外部ram，又无源代码，很多时候不实用。RTX Tiny虽然小（900多字节），但是任务没有优先级和中断管理，也无源代码，也不太实用。而ucosII虽有源代码，但是它太大，又需要外部ram，所有函数又必须是重入函数，用在51这类小片内RAM的单片机上有点勉强。于是，我借鉴ucosII和RTX Tiny编写了Small RTOS 51,虽然它为51系列编写，但是它还是比较容易移植到其它CPU上。 -err

注:protel电路图 1.INPUT12为高压气压和低压压传感器输入端. 2.OUTPUT为充气输出控制端. 3.当高低压有接地信号时,电机正转,气阀打开. 4.INPUT2低气压时有信号时,充气OUTPUT输出,充气电机转. 5.RS1与RS2是调节阀门距离用地 6.RS3是与气阀电机同步时,是气阀电机的转动圈数传感器. 7.RS4是调节延时时间用地-Note: protel circuit 1.INPUT12 and low-voltage high-pressure pneumatic pressure sensor input. 2.OUTPUT output control for the inflated side. 3. When the high and low pressure have a grounding signal when the motor is transferred, the valve opens. 4.INPUT2 low pressure when there is signal output OUTPUT inflatable, inflatable motor switch. 5.RS1 and RS2 is the regulator valve from the land 6.RS3 synchronous motor with the valve, the valve motor is rotating circle the number of sensors. 7.RS4 delay time to regulate land

遥控器测试程序按任意键试验版数码管指示灯闪烁。任意遥控器均可！-Remote control test procedure by pressing any key test version of digital tube indicator light flashes. Arbitrary remote control can be!

arm的各种源码 包含（16c54四位LED时钟显示程序，16C84的RB口中断程序，16C84做的智能卡程序，电机速度控制，ICD仿真器的源程序，PIC单片机循环程序应用实例，led的动态显示，CAN 的调试程序，DTMF cm8770 双音频解码程序，USART 通过232通讯例程-arm contains the source code (16c54 four LED clock display program, 16C84 RB I interrupt procedures, 16C84 do smart card procedures, motor speed control, the ICD simulator source, PIC cycle application procedures, led the dynamic display, and debug procedures CAN , DTMF cm8770 dual audio decoding procedures, USARTs through the 232 communications routines

在电话上用单片机来实现电话报警系统-a phone alarm system develop by MCU on phone line

用51写的接收GPS数据的程序，采用中断查寻来接受数据。本程序只接收纬度，经度，时间，.....接收其它数据类似-write with 51 receiving GPS data procedures used to receive interrupted tracing data. This procedure will only receive latitude, longitude, time ...... receiving other similar data

C51智能反编译器-C51 intelligence counter- compiler

本程序是一个简单的流水灯程序,对初学者来说是很容易掌握的,特别是对C51的初学者!--A simple water light program. It is easy to understand for beginners, especially who are learning C51.

心电信号的计算机分析毕业论文-ECG analysis of the computer Thesis

DS18b20温度测试，欢迎指点。。。。。。。