是一款DA板卡的控制界面的原代码. 用VISUAL BASIC编程

c8051f020实现4个　产UART　口-C8051F020 realize four production UART port

温度传感器LM75测试c语言程序（带串口发送程序）-LM75 temperature sensor test c language program (with Serial Send procedure)

直流电机速度控制 可通过按键来选择转速在LED上显示 使用的是C8051F 单片机-DC motor speed control through the keypad to select the speed in the LED display using a single-chip microcomputer C8051F

读取一个电机码盘信号，里面有对串口读写，对控制寄存器读写的代码。入门级！-read a motor encoder signals, and they read and write to serial port, the control register read and write code. Entry-level!

PIC BASIC Pro Dvelopment Suite

此代码是运用KEILC51语言编写的关于高低频率测量的高效代码,具有极大的实用性.-use of this code is KEILC51 language on the level of frequency measurement efficient code, great practicality.

IO 口模拟232通讯程序 使用两种方式的C程序 占用定时器0 -IO simulated 232 communications programs use two forms of occupation C program timer 0

有关网络接口芯片RTL8019As论文，有助于这方面的开放-The network interface chip RTL8019As papers, help in this regard open

modbus的CRC源程序,单片机89S52,汇编语言代码-Modbus CRC source, the microcontroller 89S52, assembly language code

使用IA4421无线射频芯片传输数据，发送端通过串口每次发送多字节，接收端将接收到的数据显示在上位机上。-IA4421 chip using radio-frequency transmission of data through the serial port for each sender to send multi-byte, the receiver will receive the data displayed in the upper machine.