请参阅NFC 阅读器“选择（通过 AID）”APDU在调试和最终结果中未路由到 Android 设备。TL; DR 读者可能已经不复存在了。
我有 ACR122U NFC 阅读器。我尝试在我的 Ubuntu 机器上运行这个示例http://www.nfc-tools.org/index.php?title=Libnfc:APDU_example#apdu_example.c 。
这是当我将我的 Android 设备（应该处于 HCE 模式）点击到阅读器时得到的日志输出：
./apdu_example
debug libnfc.general log_level is set to 3
debug libnfc.general allow_autoscan is set to true
debug libnfc.general allow_intrusive_scan is set to false
debug libnfc.general 0 device(s) defined by user
./apdu_example uses libnfc libnfc-1.7.1
debug libnfc.driver.acr122_usb device found: Bus 001 Device 088 Name ACS ACR122
debug libnfc.general 1 device(s) found using acr122_usb driver
debug libnfc.driver.acr122_usb 3 element(s) have been decoded from "acr122_usb:001:088"
debug libnfc.driver.acr122_usb TX: 62 00 00 00 00 00 00 01 00 00
debug libnfc.driver.acr122_usb RX: 80 02 00 00 00 00 00 00 81 00 3b 00
debug libnfc.driver.acr122_usb ACR122 PICC Operating Parameters
debug libnfc.driver.acr122_usb TX: 6f 05 00 00 00 00 00 00 00 00 ff 00 51 00 00
debug libnfc.driver.acr122_usb RX: 80 01 00 00 00 00 00 02 fe 00 00
debug libnfc.chip.pn53x GetFirmwareVersion
debug libnfc.driver.acr122_usb TX: 6f 07 00 00 00 00 00 00 00 00 ff 00 00 00 02 d4 02
debug libnfc.driver.acr122_usb RX: 80 08 00 00 00 00 00 02 fe 00 d5 03 32 01 06 07 90 00
debug libnfc.chip.pn53x SetParameters
debug libnfc.driver.acr122_usb TX: 6f 08 00 00 00 00 00 00 00 00 ff 00 00 00 03 d4 12 14
debug libnfc.driver.acr122_usb RX: 80 04 00 00 00 00 00 02 fe 00 d5 13 90 00
debug libnfc.general "ACS / ACR122U PICC Interface" (acr122_usb:001:088) has been claimed.
debug libnfc.chip.pn53x ReadRegister
debug libnfc.driver.acr122_usb TX: 6f 11 00 00 00 00 00 00 00 00 ff 00 00 00 0c d4 06 63 02 63 03 63 0d 63 38 63 3d
debug libnfc.driver.acr122_usb RX: 80 09 00 00 00 00 00 02 fe 00 d5 07 00 00 00 00 00 90 00
debug libnfc.chip.pn53x PN53X_REG_CIU_TxMode (Defines the transmission data rate and framing during transmission)
debug libnfc.chip.pn53x PN53X_REG_CIU_RxMode (Defines the transmission data rate and framing during receiving)
debug libnfc.chip.pn53x WriteRegister
debug libnfc.driver.acr122_usb TX: 6f 0d 00 00 00 00 00 00 00 00 ff 00 00 00 08 d4 08 63 02 80 63 03 80
debug libnfc.driver.acr122_usb RX: 80 04 00 00 00 00 00 02 fe 00 d5 09 90 00
debug libnfc.chip.pn53x RFConfiguration
debug libnfc.driver.acr122_usb TX: 6f 09 00 00 00 00 00 00 00 00 ff 00 00 00 04 d4 32 01 00
debug libnfc.driver.acr122_usb RX: 80 04 00 00 00 00 00 02 fe 00 d5 33 90 00
debug libnfc.chip.pn53x RFConfiguration
debug libnfc.driver.acr122_usb TX: 6f 09 00 00 00 00 00 00 00 00 ff 00 00 00 04 d4 32 01 01
debug libnfc.driver.acr122_usb RX: 80 04 00 00 00 00 00 02 fe 00 d5 33 90 00
debug libnfc.chip.pn53x RFConfiguration
debug libnfc.driver.acr122_usb TX: 6f 0b 00 00 00 00 00 00 00 00 ff 00 00 00 06 d4 32 05 ff ff ff
debug libnfc.driver.acr122_usb RX: 80 04 00 00 00 00 00 02 fe 00 d5 33 90 00
NFC reader: ACS / ACR122U PICC Interface opened
Polling for target...
debug libnfc.chip.pn53x ReadRegister
debug libnfc.driver.acr122_usb TX: 6f 13 00 00 00 00 00 00 00 00 ff 00 00 00 0e d4 06 63 02 63 03 63 05 63 38 63 3c 63 3d
debug libnfc.driver.acr122_usb RX: 80 0a 00 00 00 00 00 02 fe 00 d5 07 80 80 43 00 10 00 90 00
debug libnfc.chip.pn53x InListPassiveTarget
debug libnfc.chip.pn53x No timeout
debug libnfc.driver.acr122_usb TX: 6f 09 00 00 00 00 00 00 00 00 ff 00 00 00 04 d4 4a 01 00
debug libnfc.driver.acr122_usb RX: 80 0e 00 00 00 00 00 02 fe 00 d5 4b 01 01 08 03 20 04 01 02 03 04 90 00
Target detected!
=> a4 04 00 07 f0 01 02 03 04 05 06 00
debug libnfc.chip.pn53x InDataExchange
debug libnfc.chip.pn53x Timeout value: 5000
debug libnfc.driver.acr122_usb TX: 6f 14 00 00 00 00 00 00 00 00 ff 00 00 00 0f d4 40 01 a4 04 00 07 f0 01 02 03 04 05 06 00
res from transceive: -6
debug libnfc.chip.pn53x InDataExchange
debug libnfc.chip.pn53x Timeout value: 5000
debug libnfc.driver.acr122_usb TX: 6f 14 00 00 00 00 00 00 00 00 ff 00 00 00 0f d4 40 01 a4 04 00 07 f0 01 02 03 04 05 06 00
基本上我可以看到我的 Android 设备被读者看到，因为我可以看到 UID (01 02 03 04)（或者如果我点击另一个设备，则为另一个 UID）。之后传输select AIDapdu 只是超时，我在我的 Android 日志中看不到相关响应。
在 Android 设备上，我安装了一个带有 AID 的应用程序，我试图选择 - f0 01 02 03 04 05 06。
这可能是这个特定读者的问题吗？还有其他 ADPU 似乎也阻止了读者做出回应，例如FF 00 00 00 02 D4 04只是不给我回应。我可以以某种方式诊断硬件吗？