through weeks of the date of counting source of C51, with a small c written proc...

程序能够实现将十二位的二进制数5V对应fffH变换成一路0~5V的电压。 精度方面：在使用时上下波动范围大约是0~2fH能保证高位寄存器准确； 调试过程中遇到了一系列问题：（1）p0口的使用需接上拉电阻，内部没有带电阻；（2）调试的过程最好使用单步运行，以便于察看寄存器的内容；（3）对系统板不熟悉，一些硬件方面容易出问题，像口连接，电源、地的连接。（4）直流电源使用不准确，内部的各个电源输出是独立的，需要共地。 -procedures to achieve 12 to a binary number 5V counterparts fffH transform all the way into the 0- 5V voltage. Accuracy : the use of fluctuating ranges of 0 ~ 2fH can guarantee accurate high register; debugging process encountered a series of questions : (1) p0 I need to connect to the widening use of resistance, with no internal resistance; (2) the process of commissioning the best use of single-step operation, in order to inspect the contents of Register; (3) The right not familiar with the system board, Some hardware problems are likely to occur, such as connectors, power, and connectivity. (4) DC power supply use of inaccurate, all within the Power output is independent, to the total needs.

利用单片制作信号发生器，该源码是针对51+DAC0832，所产生的一系列波形，有正弦波、方波，并把相应的波形打印到lcd上显示-Making use of single-chip signal generator, the source for 51+ DAC0832, a series of waves generated, there are sine wave, square wave, and the waveform corresponding to the lcd display print

LCD ――HT1621――PIC程序-LCD-- HT1621-- PIC procedure

51单片机虚拟串口,解决只有P3.0/P3.1单串口的不足-51 single-chip virtual serial port, serial port solution is only the inadequacy of single-P3.0/P3.1

基于gps的车载定位系统，使用STCc51来设计的车在定位系统-Gps based vehicle positioning system, the use of STCc51 to design the vehicle positioning system

汇编程序，将tab中的256个数据通过串口发送-Assembler will tab of 256 data sent through the serial port

单片机的程序 8路输入模拟信号显示电路的设计-Microcomputer Program eight input signals to analog circuit design

51单片接在LCD1602汉字显示的c语言写的驱动程序。-51 single-chip access in the LCD1602 display Chinese characters written in c language driver.

在8X8　LED点阵上显示柱形，让其先从左到右平滑移动三次，其次从右到左平滑移动三次，再次从上到下平滑移动三次，最后从下到上平滑移动三次，如此循环下去。 -In the 8X8 LED dot matrix display cylindrical, smooth movement from left to right to first three times, followed by a smooth move from right to left three times, once again moving smoothly from top to bottom three times, the last from the bottom-up smoothing mobile three times, so the cycle continue.

基于ARM中LPC2131芯片编写的各种uart源程序！-LPC2131 chips based on ARM in the preparation of a variety of uart source code!