arm(44b0)端口初始化,在程序里面有较多的注释部分, 在具体情况下可用...

Tea5767的3线控制程序，M8单片机，采用3线控制，内有电路原理图，可手动指定频率，也可以上下搜索-TEA5767 the 3-wire control procedures, M8 MCU, using 3-wire control with a circuit schematic can be manually specified frequency, can also be upper and lower search

完整的C8051F340串口通讯源代码。无需更改可以直接通讯-C8051F340 complete source code for serial communication. No need to change can be direct communication

基于中断控制的声光报警器的设计.采用中断方式，设计一个声光报警器的硬件电路和控制程序。程序运行时，一旦8位开关信号量状态满足设定条件，就触发中断，使发光二级管按规律闪烁，同时扬声器播放一段音乐。 硬件设备包括一台微机、一个MFID微机实验箱、一块T型板，2输入四与门 74ls08、8位总线驱动器 74ls245、LM386A音频放大器、排阻、扬声器各一个，发光二极管8个，470uF电容2个、104电容4个，插线若干。 -Interrupt-based control of sound and light alarm design. Using interrupt mode, designing a sound and light alarm hardware circuits and control procedures. The program is running, once the 8-bit switch signal to set the amount of state to meet the conditions to trigger interrupts, so that light-emitting diode flashes according to the law, while speakers play a piece of music. Hardware includes a computer, a computer simulation, MFID box, a T plate, 2 input 4 and gate 74ls08, 8-bit bus driver 74ls245, LM386A audio amplifier, exclusion, speakers of a light-emitting diode 8, 470uF capacitor 2 a, 104 capacitors 4, plug-line number.

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keyboard interface

电子秤,能显示重量,设置重量,超量程报警-Electronic Scale showing the weight, set the weight, ultra-range alarm

这段代码是有关USB功能的实现源代码 包括驱动 等-This code is related to the realization of the source code for USB functions, including drivers, etc.

实现ATmel公司的支持SPI总线的存储芯片AT45DB011B的存取操作，kei c编写环境-Realize Atmel

半导体特性、微电子学习的很好入门教程、提供给需要的人-no

这是一个控制两个步进电机的程序，可以作为小车的驱动电机程序，实现正、反转、转弯等功能-This is a stepper motor control of the two procedures can be used as the drive motor vehicle procedures, implementation is, reverse, turning and other functions