51 on the RTOS, the RTOS non

基于51单片机实现UART通信 SPI通信 和IIC通信 -Based on 51 single-chip UART communication realize SPI and IIC communications communications

LM3S89XX ARM(CORTEX-M3) 内部看门狗原代码，周立功提供-LM3S89XX ARM (CORTEX-M3) internal watchdog the original code, Zhou Ligong provide

m128 接 gsm modem 用pdu 发中文短信 的流程。自己总结的，附带源码，仅供参考哦-gsm modem access m128 made by Chinese SMS pdu process. Their own summary, with source code, for reference only, oh! !

atmega32 和RS485的通讯，已经在电路板上测试通过，RS232相对简单一点，RS485需要对控制收发信号处理一下，并且需要RS232转RS485工具来验证收发是否正确-atmega32 and RS485 communication, has been tested in the circuit board, RS232 relatively simple point, RS485 transceiver control signals need to deal with you, and will need RS232 to RS485 transceiver tools to verify the correctness of

利用单片机的中断口来测PWM码的宽度，通过本实验仪配备的遥控，单片机解码在数码管上显示（图20）。实际应用例如：红外遥控-use SCM I interrupted to test PWM-yard width, the passage of the experimental apparatus equipped with the remote control, microcontroller decoding in a digital display tube (Figure 20). Practical applications such as : infrared remote control

c8051f120端口模拟的I2C,点亮PCF8574驱动的发光二极管-c8051f120 simulated port I2C, lit PCF8574-driven light-emitting diodes

本代码基于凌阳SPCE061A芯片，实现单段录音功能，并可重复播放所录语音。-Based on this code SPCE061A Sunplus chip, to achieve single-stage sound recording function, and repeat playback recorded voice.

93C46/66的读写程序，编译环境Uvision2，4线SPI接口的EEprom芯片的读写-93C46/66 literacy program, compile environment Uvision2, 4-wire SPI interface EEprom chip reader

芯片PCF8951共有四个A/D输入通道：AD0，AD1，AD2，AD3,分别与四个电位器(R1,R2,R3,R4)连接，用以调节电位器的输出电压。其中AD0通道既可测量电位器输出电压，也可用于测量从J1插座输入的外接电压，须用开关J2加以选择。J4插座提供由PCF8591输出的时钟方波信号。SAA1064驱动四个数码管显示一路AD转换后得到的数据。-PCF8951 chip, there are four A/D input channels: AD0, AD1, AD2, AD3, respectively, with four potentiometers (R1, R2, R3, R4) connected to regulate the output voltage potential. AD0 channel which can be measured potentiometer output voltage can also be used to measure the input from the J1 socket external voltage, to be used to select switch J2. J4 socket output from the PCF8591 clock square wave signal. SAA1064 drivers of four digital display along after AD conversion data.

数字温度计进而考虑到用温度传感器，在单片机电路设计中，大多都是使用传感器，所以这是非常容易想到的，所以可以采用一只温度传感器DS18B20，此传感器，可以很容易直接读取被测温度值，进行转换，就可以满足设计要求。-Digital thermometer to take into account the use of temperature sensors, in single-chip circuit design, most of them are the use of sensors, so it is very easy to think of, so can use a temperature sensor DS18B20, this sensor can easily be directly read measured temperature values, the conversion, it can meet the design requirements.