P89C668单片机硬件I2C软件包,668i2c.asm（主方式）

　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.

必用的C程序,单片机实现滤波器的方法-Procedures must be used in C, single-chip filter methods realize

本程序是通过单片机进行电机的控制，可以控制电机的转速，前进和倒退。单片机通过串口接收来计算机的控制信号(可以采用无线方式进行串口的通讯)。工具采用的是“韦福”的仿真软件。-this procedure through the MCU for motor control, control of the motor forward and retrogression. SCM through the computer serial port to receive the control signal (which can be used for wireless serial communications). Tools used the "ru" simulation software.

对家用电扇进行模拟控制，实现自然，正常；快中慢的转换，用8086实现和用直流电机进行模拟实现，附程序-Analog control of the home fans to achieve a natural, normal fast in the slow conversion, with the 8086 implementation and the use of DC motor to simulate to achieve, with a program

AVRUSB_IR_DISPLAY，AVR红外检测显示-AVRUSB_IR_DISPLAY, AVR Infrared detection show

民航二所单片机驱动开发-CAD 2 Microprocessor Development

用LCD1602来显示日期和时间，源码程序-LCD1602 display with date and time, source program

LCD1602驱动程序 采用c语言驱动lcd1602-LCD1602 driver language used c-lcd1602

用SD模式读SD卡的代码,写功能尚未实现,希望能给您一点帮助!-SD mode with SD card code reading and writing function has not yet been achieved, I hope to give you a little help!

俄罗斯方块，采用51单片机，c语言编制。能在大屏幕液晶下很好的玩转游戏。-Russian box, using 51 single-chip microcomputer, c language. Large-screen LCD in the next game Topsy good.