constant pressure water test procedure, the 51 series of MCU

用4*4键盘模拟手机按键输入，16*2LCD输出-4* 4 keyboard keystrokes analog phones, 16* 2LCD output

采用UART方式0与LM74通信。 用C8051f020的P0.7作片选，主机通过TXD发送时钟信号，实现同步通信,半双工.RXD 作双向数据线.用六位数码管显示LM74采集的温度值-The use of UART communication mode 0 and LM74. P0.7 used for the C8051F020 chip select, host TXD sent through the clock signal, to achieve synchronous communication, half-duplex. RXD for bi-directional data line. With six digital tube display LM74 temperature collected

这是关于51单片机驱动及显示的经典程序，主芯片是51单片机。-This is displayed on the driver and the classic procedure, the main chip is a single-chip microcomputer 51.

射频识别应用资料，介绍了一种RFID防碰撞算法，以及射频识别应用系统案例-Application of radio frequency identification information on an RFID anti-collision algorithm, as well as radio frequency identification applications, case

改程序实现了C8051F120混合信号片上系统32位乘法，提高了在C8051上实现乘法的精度，较少了计算误差-Reform process to achieve the C8051F120 mixed-signal system-on-chip 32-bit multiplication to improve the C8051 to achieve precision multiplication, the calculation error of less

c51 使用技巧 很不容易得到了 c51 使用技巧 很不容易得到了-C51 skill

128×64液晶接口程序，开发出图形，进度条等等许多实用的子程序，方便移植，方便大家！-128 64 LCD interface program to develop graphics, and so on the progress of the many practical subroutine to facilitate transplantation, convenient!

一个完整的用51单片机控制温度传感器采集并显示的程序，温度传感器选用DS18B20，显示器为1602-An integrated temperature sensor with 51 control procedures for collecting and display, temperature sensor selection DS18B20, display for the 1602

USB开发D12的结构-USB D12 structure

自已编写的一个用于调试单片机串口的一个下位机程序。很实用的。-own prepared by a serial port for debugging MCU of a crew under the procedure. Very practical.