本程序用于键盘的识别，通过编程，使按下K1键时第一个数码管显示1，按下K2键时第一 //个数码管上显示2，按下K3键时第一个数码管上显示3，按下K4键时第一...

　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.

AVR中断函数,很好用的，真的！ -interrupt function of AVR

利用单片机产生音乐的程序， 优化的音符编码是这个程序最大的优点。-Single-chip computer generated music program, and optimize the code notes that the greatest advantages of this procedure.

USB带宽测试的程序，针对CY7C68013的USB2.0接口芯片，编译环境为KEIL -USB bandwidth test procedures against CY7C68013 USB 2.0 interface chip, compile environment for KEIL

P T 2 2 5 8 详 细 英 文 资 料-PT 2 2 5 8 detailed information in English

51单片机实现电梯仿真及其程序，51单片机实现电梯仿真及其程序-51 single-chip simulation and procedures to achieve the lift, plus sub-ah

AT89C51中文资料。介绍了AT89C51 8位单片机的内部结构和各个存储器，时序等。-AT89C51 Chinese data. Introduction of the AT89C51 8-bit MCU s internal structure and the various memory, timing and so on.

2401_Quick_Dev无线模块的源代码_source code for 89LV51-2401_Quick_Dev wireless module

LT-1B开发板例子程序－ADC12_03

x5045的应用程序，多初学的朋友很有帮助！-X5045 applications, and more helpful beginner