网上找到的PCF8563程序基本不能用 本程序基于51单片机，模拟了I2C接口，现已调试成功，可以做成万年历了...

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是一个利用单片机C语言生成各阶M序列的程序，还有发送程序-SCM is a C language generation of the M-series of procedures, there is this procedure

基于C51单片机驱动舵机的程序 C语言编程可控制多个舵机-C51-based single-chip driver steering procedure C language programming can control a number of steering gear

8051实时操作系统-8051 real-time operating system

　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.

对初学MCS-51单片机的很有帮助的，基础的知识-helpful MCS-51 for beginners helpful

这是msp430 进入低功耗的例程，请查收，接下来还有-This is a low-power MSP430 into the routine, please check, then there

单片机讲义-Singlechip handouts

PS2 Game Products Test-Jig source code,

利用单片机控制实现的计算器，用lcd显示计算的过程和结果。-SCM control to achieve use of calculator, lcd display with the calculation process and results.