PN532( NFC) 指令测试中的疑问 反馈的指令换行是怎么意思 - V2EX
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delikely

PN532( NFC) 指令测试中的疑问 反馈的指令换行是怎么意思

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  •   delikely Sep 18, 2016 3224 views
    This topic created in 3510 days ago, the information mentioned may be changed or developed.

    第一次写 nfc p2p 有很多不清楚 还望大神们指教(能给点资料就最好了)

    • PN532 将本设备初始化为 target DEP

     指令集之初始化为 target dep

    • 反馈

    recevie

    少了 00 00 FF 14 EC D5 8D 26 11 D4 00 01 FE A2 A3 A4 A5 A6 A7 00 00 00 00 00 00 B9 00 怎么回事

    指令集来自百度文库 http://wenku.baidu.com/link?url=YYDYHlyzk5YFlonhiXO6mq5L-m2fXQvZPFxRY2gMJcRPGj1HTbu-tjL88Ry3qkn5ynhQgU4-CMIClIMI9O-5r6K0-3ZjvWgAY6AQvu7jXUC

    文档里面的 out 部分 有的换行有的不换行 这是怎么回事

    不换行的都正常 换行的只能收到第一行的

    1 replies    2016-09-19 13:40:13 +08:00
    youngbug
        1
    youngbug  
       Sep 19, 2016
    看 PN532 手册啊。你这个响应就是没后面数据的,响应的第四字节表示后面数据域的长度,百度文库的那个响应有 0x14 字节,你这个是 0x00 字节。
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