C51程序

12bitAD转换芯片AD1674的应用，转换数据由1602液晶显示-AD1674 chip 12bitAD conversion applications, conversion of data from the 1602 LCD

51单片机的波特率设置计算小工具。方便的计算值就可用波特率产生。-51 Baud Rate Setting small calculation tool. To facilitate the calculated values can be generated with baud rate.

由4X4组成16个按钮矩阵，设计成16个音。 可随意弹奏想要表达的音乐。 -By the 4X4 matrix composed of 16 buttons, designed to tone 16. Free to play the music you want to express.

基于ST7902驱动的12864LCD显示汉字、图片，显示自己做的字库汉字-ST7902-driven based on 12864LCD display Chinese characters, pictures, show the character of their own characters

基于8051的单片机时钟源代码，可实现时间设置，闹钟等-Based on the 8051 single-chip clock source code, can be set-up time, alarm clock, etc.

这是微软的一个USB块传输例程，虽然它是基于Intel USB开发板的，但是也很值得我们好好的研究。-This is a Microsoft USB block transmission routines, although it is based on the Intel USB development board, but also worthy of our good look.

　C8051F330/1 MCU 有一个可编程内部高频振荡器、一个可编程内部低频振荡器和一个外部振荡器驱动电路。可以通过对 OSCICN 和 OSCICL 寄存器编程来使能/禁止内部高频振荡器和调节其输出频率（参看振荡器框图）；可以通过对 OSCLCN 寄存器编程来使能/禁止内部低频振荡器和调节其输出频率（参看图9.3）。系统时钟可以由外部振荡器电路或任何一个内部振荡器提供。表9.1给出了内部振荡器的电气特性。 -C8051F330/1 MCU has a programmable internal high-frequency oscillator, a programmable internal low frequency oscillator and an external oscillator drive circuit. Can register on OSCICN and OSCICL programming to enable/disable the internal high-frequency oscillator and adjust its output frequency (see diagram oscillator) OSCLCN can register through the programming to enable/disable the internal low frequency oscillator and adjust its output frequency (see Figure 9.3). System clock can be external oscillator circuit, or any provision of an internal oscillator. Table 9.1 gives the electrical characteristics of the internal oscillator.

104键PS2接口标准键盘程序（C语言）单片机程序例程-104 key PS2 keyboard interface standard procedures (C language) Singlechip routine procedures

实用单片机的C51程序，流行的语言，对于初学编程非常有用-practical SCM C51 procedures, popular languages, a very useful learning program

单片机4*4键盘与LED数码管的显示，按下键盘显示相应的字符（1，2，3...A，B...E）-none