12位串行A/D转换芯片TLC2543的驱动程序

双向变频控制，采用微芯片公司微控制器 PIC16F72，三个阶段单相

TQ2440 开发板 裸跑程序测试源码， 包含ov9650 ，iic，adc， gpio ，lcd 等等程序，十分有用-TQ2440 development board for running naked program testing source code, including ov9650, iic, adc, gpio, lcd, and so procedure is very useful for

arm3000的键盘和led驱动的源代码-arm3000 the keyboard and led driver source code

开发嵌入式linux系统 系统平台是华恒HHARM2410 可以作为初学者学习开发嵌入式系统的学习手册-embedded Linux platform is huaheng HHARM2410 as beginners can learn to develop embedded systems learning manuals

应用背景车载广告机媒体不仅具备电视的功能，为观众呈现精彩的节目，赏心悦目，还是一台悦耳的收音机。环绕公交车的车厢安装6—8 个高音质的喇叭，即使你看不到，但是你能听得到，不仅是听到，而且听得清晰、听得震撼。车载广告媒体所有节目的制作都力求同时大众的传播要求。 同时采用车载广告机的声音与 GPS 自动报站声音的自动切换技术,对公交车的正常运行不会有任何干扰. 车载广告机采用内置于节目的编排形式，广告的位置，节奏的掌握，与节目的匹配，都经过精心的设计。在变化中力求广告的突显，使受众在被精彩节目吸引的同时，快乐地接受广告，深刻地记住广告。 受众收看移动电视的时间是人们在乘车过程中的时间，人均每天单次乘车的时间在20—40 分钟。移动数字频道是大连电视台第七频道,而收视率是传统频道的5—10 倍。车载广告机不存在换频道的问题，不仅具备传统电视的优点，而且弥补了传 统电视的不足。关键技术 GPS 报站系统：记录每个站的gps 信息，存入到指定文件，当车开到站的附近报 出到站的信息内容，包括GPS 无信号的容错提示。  用keil c 开发，已应用于市场月1000多辆公交，实用于多种单片机

visual socpe 的通信协议。只需更改宏，即可适用于不同平台#define UART_VS_PORT         #define UART_SendData(data)  默认给出的是STM32的驱动。

实现cc2430通过串口想计算机循环发送字符串，对学习串口通信有很好的帮助。-Achieved through the serial port to a computer recycling cc2430 send strings, have a good serial communication for learning help.

采用IAR arm环境开发，调试通过。lm3s8962芯片下的，串口数据发送模板。只要自已写点想发送的内容就能用了。-Using IAR arm environmental development, debugging through. lm3s8962 under chips, serial data transmission template. As long as write their own point to make can be used to send the contents of the.

linux基础学习资料，公司内部资料很有用-linux-based learning materials, company information is useful in

The PCF7991AT is a fully integrated Advanced Basestation IC, ABIC, designed for car immobilizer systems providing read and write access to an identification transponder. The device is intended for use with the NXP transponder family (PCF79xx) as well as other transponder types operating at 125 kHz and employing ASK, Amplitude Shift Keying for write and AM/PM for the read operation. The receiver characteristics (amplifier gain,filter cutoff frequencies) can be optimized to system and transponder requirements. The PCF7991AT IC is designed for easy integration into immobilizer read/write and read-only systems featuring a high degree of integration and very low external component count. The device integrates a powerful antenna driver/modulator, a low-noise adaptive sampling time demodulator, programmable filters/amplifier and digitizer, required to design high-performance basestations. A three wire microcontroller interface is provided for programming the PCF7991AT as well as for th