nand―flash source

发光二极管(LED)照明为标新立异、舒适和用户定制开启了一片新天地。这些设计机遇在迅速提升LED在车内的应用程度和速度。当把LED用在车内、车前和车尾照明时，有几种方法和设计技术可供选择。 -Light-emitting diode (LED) lighting for the unconventional, comfortable and customized a new world opened up. These design opportunities in a rapidly enhance the application of LED in the car the extent and speed. When the LED used in the car, front and rear lighting when there are several methods and design techniques to choose from.

基于Verilog HDL数字频率计的设计与实现，完整工程文件，该设计符合如下要求：（1）以数码管显示频率值（2）测量偏差不大于0.1%（3）测试信号为10kHz以下的正弦或方波（4）对方波信号，要求能测量占空比，偏差不大于1%

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

ARM7 LPC2114自已工作中编写的直流马达驱动源程序。 文件： uart_motor.HEX Uart_motor.mcp LPC2294.h 等相关文件。-ARM7 LPC2114 own work, the preparation of DC motor drive source. File: uart_motor.HEXUart_motor.mcpLPC2294.h and other relevant documents.

excel_用C操作_包含读,写,删.简单的调用实例.. excel_用C操作_包含读,写,删.简单的调用实例.. excel_用C操作_包含读,写,删.简单的调用实例..

4*4键盘C51单片机程序.本程序已经调试通过，4*4键盘接P1口数据从P2的8个发光二极管来表示-4* 4 keyboard C51 Singlechip procedures. This procedure has been debugging through, 4* 4 keyboard access data from the P2 port P1 of the eight light-emitting diodes to indicate the

基于ARM7的44B0开发板的DMA测试程序，C语言编写，可以在ADS1.2上运行-ARM7-based development board 44B0 of DMA test procedure, C language, you can run ADS1.2

MODBUS代码，希望对各位有所帮助，共同进步-MODBUS code you want to help each other circulated in order to have progress

this a book about cpld fpga developmen,it is very useful for eda development

ALTER的CPLD/FPGA配置芯片的手册，很有用的-ALTER the CPLD/FPGA chip configuration manual, very useful