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[Other resourcetrans628

Description: PIC16F628搭配U2270B RFID reader IC 的C源碼,用作門禁管制
Platform: | Size: 8469 | Author: cchiang | Hits:

[RFIDtrans628

Description: PIC16F628搭配U2270B RFID reader IC 的C源碼,用作門禁管制-PIC16F628 with U2270B RFID reader IC
Platform: | Size: 8192 | Author: cchiang | Hits:

[Embeded-SCM DevelopRFID

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.
Platform: | Size: 3072 | Author: chb | Hits:

[Embeded-SCM DevelopRF-ID_SHEMATIC

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
Platform: | Size: 668672 | Author: 星夜浪人 | Hits:

[SCMRFID13

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
Platform: | Size: 1024 | Author: 廖偉 | Hits:

[Embeded-SCM DevelopID_card_source

Description: ID卡读卡器源程序 用Mega32通过U2270B读取H4001RFID卡号的范例-ID card reader with Mega32 source U2270B read H4001RFID card number through an example of
Platform: | Size: 15360 | Author: 侯德平 | Hits:

[SCMrecard

Description: 采用MICROCHIP单片机,U2270B基站芯片做的读卡器源程序-MICROCHIP using single-chip, U2270B base station so the reader chip source
Platform: | Size: 5120 | Author: yuwenchao | Hits:

[RFIDEM410x_tag_decoder_for_EM4095_RFID_reader_IC

Description: This is a software for a Atmel microcontroller to decode EM410x read-only tags with the EM4095 or U2270B reader IC.
Platform: | Size: 19456 | Author: Grazer | Hits:

[RFIDEM410x_tag_decoder_with_LCD-Display_(BASCOM)

Description: EM410x read-only tag decoder for U2270B reader IC and ATtiny2313 uC with LCD and UART output of ID. Language: AVR-BASIC (BASCOM).-EM410x read-only tag decoder for U2270B reader IC and ATtiny2313 uC with LCD and UART output of ID. Language: AVR-BASIC (BASCOM).
Platform: | Size: 31744 | Author: Grazer | Hits:

[Windows DevelopPttrrans628I

Description: PIC16F628搭配U2270B RFIDD reader IC 的C源碼,用作門禁管制 -PIC16F628 with the U2270B RFIDD reader IC C source code, used for access control
Platform: | Size: 8192 | Author: zxcvva | Hits:

[SCMt5557

Description: id读卡 u2270b,有程序和资料哦,蛮好的了,你们需要的可以下载。哎,没次数了-The id reader u2270b, procedures and Oh, fine, you can download. Hey, not the number of times
Platform: | Size: 62464 | Author: weibiaohua | Hits:

[SCMU2270B-T5551

Description: 这是一个U2270B芯片T5551射频卡的读写程序-this is a U2270B chip T5551 RF card reader procedures
Platform: | Size: 2048 | Author: 李老四 | Hits:

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