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Description: 此程序为13.56MHz的RFID底层读写卡程序-procedure for 13.56MHz RFID bottom of the card reading and writing procedures
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Size: 288768 |
Author: 张红 |
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Description: 用AVR单片机ATMega32通过U2270B读取H4001只读RFID卡号的范例，H4001卡有关信息，采用曼切斯特编码，125Khz,RF/64,位周期512uS，激光编程64位ID。-with AVR ATMega32 through U2270B RFID read CD-H4001 Create a model, the H4001 card information using Manchester encoding, 125Khz, RF/64. 512 uS-cycle laser programming 64 ID.
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Size: 41984 |
Author: 陈浩 |
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Description: 找的一个用U2270B开发的射频卡项目文件，很不错，是官方的！！
对坐射频卡项目的人有很好的参考价值-find a use U2270B development of the RF card project document quite well, and is an official! ! RF cards sitting in an item of value!
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Size: 531456 |
Author: 王润伟 |
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Description: U2270B的非接触ID卡的解码程序，函数返回ID卡有无刷卡的标号及卡号，经工程证实，该程序可用。-U2270B non-contact ID card decoders procedures, function returns ID cards 0800-099799 whether the labeling and card number, the project confirmed that the procedure can be used.
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Size: 1024 |
Author: 钱明贵 |
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Description: 125khz射频ID卡读卡程序，C51汇编-125khz RF ID Card procedures, C51 Series
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Size: 1024 |
Author: 贺云峰 |
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Description:
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Size: 86016 |
Author: lyf |
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Description: 一个完整的读卡的C语言程序，包括扩展电路，及应用！-Reader a complete C-language program, including expansion of the circuit, and application!
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Size: 2048 |
Author: zxp |
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Description: u2270b接口51程序，11.0592晶振-51 interface u2270b procedures, crystal 11.0592
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Size: 2048 |
Author: |
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Description: U2270B与PIC16F73的水表射频卡表的程序-U2270B with PIC16F73 RF meter card table procedure
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Size: 14336 |
Author: |
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Description:
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Size: 394240 |
Author: lvnianzhi |
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Description: PIC16F628搭配U2270B RFID reader IC 的C源碼,用作門禁管制-PIC16F628 with U2270B RFID reader IC
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Size: 8192 |
Author: cchiang |
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Description: 利用射频卡读写基站U2270B实现对EM4100卡的读取控制。系统会自动对曼彻斯特编码进行解调，并对接收到的数据检验。同时系统会自动检测是否有射频卡存在。而且会实时监控系统运行的状态，并会提示各种读卡错误的信息。显示采用12864液晶，没有附上液晶源码。-The use of radio frequency card reader U2270B realize base stations on the EM4100 card reader control. The system will automatically Manchester code demodulator and the received data verification. At the same time, the system will automatically detect whether there has RF card. But also real-time monitoring of system operation status, and will prompt all kinds of readers the wrong message. 12864 LCD display used, there is no source attached LCD.
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Size: 3072 |
Author: chb |
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Description: 射频技术最完整的电子书，详细介绍了射频的所有相关的内容。-RF technology the most complete e-book, detailing all the relevant radio content.
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Size: 20850688 |
Author: chenhong |
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Description: U2270B组成的读卡头原理图!典型应用电路-U2270B reader, composed of the first schematic! Typical application circuit
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Size: 668672 |
Author: 星夜浪人 |
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Description: 根据曼彻斯***的编码原则（参见本刊2001年第一期《一种采用曼码调制的非接触IC卡读写程序编制》），非接触ID卡采用上升沿对应着位数据“0”，下降沿对应着位数据“1”，微控制器通过检测U2270B输出数据位的跳变来实现对曼彻斯***的译码。在现实工作中，数据信号会受到调制、解调、噪声各种效应的影响，其上升沿和下降沿存在抖动，可采用键盘消抖的办法来消除抖动的影响。根据非接触ID卡64位数据循环发送以及其数据绪构特点，即数据流中第64位为“0”，第1位至第9位为“1”。据此，将“0111111111”作为读数据的起始标识，如图2所示。在确定了数据起始标识后，采用延时大于0.5T采样数据位的方法，如图3所示，来避开曼彻斯***编码中的空跳对数据译码造成的影响，简化了译码程序。
通过实验得到：480μs≤1T≤520μs，220μs≤0.5T≤280μs，由此取Tnext=300μs。为了便于对读出数据进行奇校验，读出数据每5位作为一个字节。因此确定起始标识和读取数据对时钟有严格要求，所以寻找起始标识和读取数据部分程序采用汇编语言编写。数据读以后，根据前面所提到的非接触ID卡的数据结构，通过比较奇校验算法与读出数据中的奇校验位来验证出数据的正确性。-A man code modulation non-contact IC card reader Programmer
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Size: 1024 |
Author: 廖偉 |
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Size: 8383488 |
Author: skycai |
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Description: 使用51单片机控制u2270芯片读取EM4001id卡-SCM u2270 chip with 51 card reading EM4001id
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Size: 2048 |
Author: zx |
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Description: 使用PIC芯片控制U2270读取125KHz ID卡卡号，因为所使用的PPIC资源很少，此程序极为精简，包含中断曼切斯特解码和校验全过程，非常实用。
-PIC chip control U2270 Read 125KHz ID card number, because few the PPIC resources used, this process is extremely streamlined, contains interrupt Manchester decoding and check the whole process is very practical.
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Size: 2048 |
Author: dep |
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Description: PIC16F628搭配U2270 RFID rreader IC 的read副程式，執行門禁管制
-The PIC16F628 with U2270 RFID rreader IC read subroutine, execution access control
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Size: 2048 |
Author: liming |
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Description: ID读卡器程序，采用U2270,实际项目程序-ID card reader program, using the U2270, the actual project program
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Size: 13312 |
Author: --- |
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