51单

　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.

NOKIA线控耳机源码，协议为NOKIA自定义协议。-NOKIA headset wire source, the agreement for NOKIA custom protocols.

PIC单片机 液晶 组成的万年历，带有protues仿真-PIC, composed of single-chip LCD calendar with protues Simulation

c语言的按键处理，菜单实现的程序例子！ -c language button handle, menu examples realize the procedure!

单片机与键盘接口程序，C代码，简单好实用。-SCM and the keyboard interface program, C code, a simple and practical good.

51单片机Ｃ语言学习杂记 51单片机Ｃ语言学习杂记-51 Single-chip C Language Learning 51 Miscellanies Miscellanies Singlechip C Language Learning

PCB钻孔资料 PCB设计重要参考资料-PCB borehole data important reference PCB Design

主要是实现I2C协议的一种方法，主要运行环境是ADS1.2-I2C protocol is mainly to achieve a method, the main operating environment is ADS1.2

自己写的一个用在单片机串口通讯中的环形队列缓冲区管理模块。-himself wrote a serial microcontroller used in the communications ring buffer queue management module.

very good c program for software-very good c program for software77