Unable to send NDEF message using snep-client example in libllcp and libnfc

[Sriram Gopalan]

Hello everybody, 

I am using a SCL3711 USB Dongle on Ubuntu 12.04 and the use case I am trying to achieve is to send a NDEF message to Android application. SCL3711 is intended to be the Initiator and the Android Phone is to be the Target.    

To get started, I cloned the git repository for libnfc and libllcp and could build them successfully. I used the snep-client to send a test NDEF to Moto X. It did not work and failed with an error code 0x13 for SYMM PDU. 

Here is the log that I collected. I patched the code to output current time ( patch attached ) and also to retry the pdu_send operation ignoring the error. However that did not help. Can you please help me as to what could be going wrong here. 

root@probook:/home/sriram/out/x86/bin# LIBNFC_LOG_LEVEL=3 ./snep-client

18:41:57.880 unknown libnfc.general log_level is set to 3

18:41:57.881 debug libnfc.general allow_autoscan is set to true

18:41:57.881 debug libnfc.general allow_intrusive_scan is set to false

18:41:57.881 debug libnfc.general 0 device(s) defined by user

18:41:57.966 debug libnfc.driver.pn53x_usb device found: Bus 002 Device 019

18:41:57.966 debug libnfc.general 1 device(s) found using pn53x_usb driver

18:41:57.966 debug libnfc.driver.pn53x_usb 3 element(s) have been decoded from "pn53x_usb:002:019"

18:41:57.972 debug libnfc.driver.pn53x_usb TX: 00 00 ff 00 ff 00 

18:41:57.973 debug libnfc.chip.pn53x GetFirmwareVersion

18:41:57.973 debug libnfc.driver.pn53x_usb TX: 00 00 ff 02 fe d4 02 2a 00 

18:41:57.974 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.974 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.974 debug libnfc.driver.pn53x_usb RX: 00 00 ff 06 fa d5 03 33 02 07 07 e5 00 

18:41:57.974 debug libnfc.chip.pn53x GetFirmwareVersion

18:41:57.974 debug libnfc.driver.pn53x_usb TX: 00 00 ff 02 fe d4 02 2a 00 

18:41:57.975 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.976 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.976 debug libnfc.driver.pn53x_usb RX: 00 00 ff 06 fa d5 03 33 02 07 07 e5 00 

18:41:57.976 debug libnfc.chip.pn53x SetParameters

18:41:57.976 debug libnfc.driver.pn53x_usb TX: 00 00 ff 03 fd d4 12 14 06 00 

18:41:57.977 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.977 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.978 debug libnfc.driver.pn53x_usb RX: 00 00 ff 02 fe d5 13 18 00 

18:41:57.978 debug libnfc.general "SCM Micro / SCL3711-NFC&RW" (pn53x_usb:002:019) has been claimed.

libllcp.llc.link service 0x9e7aa30 bound to SAP 1

libllcp.llc.link service 0x9e7a990 bound to SAP 32

libllcp.mac.link (SCM Micro / SCL3711-NFC&RW) Attempting to activate LLCP Link as initiator

18:41:57.978 debug libnfc.chip.pn53x ReadRegister

18:41:57.979 debug libnfc.driver.pn53x_usb TX: 00 00 ff 0c f4 d4 06 63 02 63 03 63 0d 63 38 63 3d b0 00 

18:41:57.980 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.980 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.980 debug libnfc.driver.pn53x_usb RX: 00 00 ff 08 f8 d5 07 00 00 00 00 00 00 24 00 

18:41:57.981 debug libnfc.chip.pn53x PN53X_REG_CIU_TxMode (Defines the transmission data rate and framing during transmission)

18:41:57.981 debug libnfc.chip.pn53x PN53X_REG_CIU_RxMode (Defines the transmission data rate and framing during receiving)

18:41:57.981 debug libnfc.chip.pn53x WriteRegister

18:41:57.981 debug libnfc.driver.pn53x_usb TX: 00 00 ff 08 f8 d4 08 63 02 80 63 03 80 59 00 

18:41:57.982 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.982 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.982 debug libnfc.driver.pn53x_usb RX: 00 00 ff 03 fd d5 09 00 22 00 

18:41:57.982 debug libnfc.chip.pn53x RFConfiguration

18:41:57.983 debug libnfc.driver.pn53x_usb TX: 00 00 ff 04 fc d4 32 01 00 f9 00 

18:41:57.984 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.984 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.988 debug libnfc.driver.pn53x_usb RX: 00 00 ff 02 fe d5 33 f8 00 

18:41:57.989 debug libnfc.chip.pn53x PN53X_SFR_P3 (Port 3 value)

18:41:57.989 debug libnfc.chip.pn53x ReadRegister

18:41:57.989 debug libnfc.driver.pn53x_usb TX: 00 00 ff 04 fc d4 06 ff b0 77 00 

18:41:57.990 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.990 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.991 debug libnfc.driver.pn53x_usb RX: 00 00 ff 04 fc d5 07 00 3e e6 00 

18:41:57.991 debug libnfc.chip.pn53x RFConfiguration

18:41:57.991 debug libnfc.driver.pn53x_usb TX: 00 00 ff 04 fc d4 32 01 01 f8 00 

18:41:57.992 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.992 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.992 debug libnfc.driver.pn53x_usb RX: 00 00 ff 02 fe d5 33 f8 00 

18:41:57.992 debug libnfc.chip.pn53x PN53X_SFR_P3 (Port 3 value)

18:41:57.993 debug libnfc.chip.pn53x ReadRegister

18:41:57.993 debug libnfc.driver.pn53x_usb TX: 00 00 ff 04 fc d4 06 ff b0 77 00 

18:41:57.993 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.993 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.994 debug libnfc.driver.pn53x_usb RX: 00 00 ff 04 fc d5 07 00 3e e6 00 

18:41:57.994 debug libnfc.chip.pn53x PN53X_SFR_P3 (Port 3 value)

18:41:57.994 debug libnfc.chip.pn53x WriteRegister

18:41:57.994 debug libnfc.driver.pn53x_usb TX: 00 00 ff 05 fb d4 08 ff b0 3a 3b 00 

18:41:57.995 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.995 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.996 debug libnfc.driver.pn53x_usb RX: 00 00 ff 03 fd d5 09 00 22 00 

18:41:57.996 debug libnfc.chip.pn53x RFConfiguration

18:41:57.996 debug libnfc.driver.pn53x_usb TX: 00 00 ff 06 fa d4 32 05 ff ff ff f8 00 

18:41:57.997 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.997 debug libnfc.chip.pn53x PN53x ACKed

18:41:57.998 debug libnfc.driver.pn53x_usb RX: 00 00 ff 02 fe d5 33 f8 00 

libllcp.mac.link (SCM Micro / SCL3711-NFC&RW) nfc_initiator_init() succeeded

18:41:57.998 debug libnfc.chip.pn53x ReadRegister

18:41:57.998 debug libnfc.driver.pn53x_usb TX: 00 00 ff 0e f2 d4 06 63 02 63 03 63 05 63 38 63 3c 63 3d 19 00 

18:41:57.999 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:57.999 debug libnfc.chip.pn53x PN53x ACKed

18:41:58.000 debug libnfc.driver.pn53x_usb RX: 00 00 ff 09 f7 d5 07 00 80 80 00 00 00 00 24 00 

18:41:58.000 debug libnfc.chip.pn53x PN53X_REG_CIU_TxAuto (Controls the settings of the antenna driver)

18:41:58.000 debug libnfc.chip.pn53x PN53X_REG_CIU_Control (Contains miscellaneous control bits)

18:41:58.000 debug libnfc.chip.pn53x WriteRegister

18:41:58.000 debug libnfc.driver.pn53x_usb TX: 00 00 ff 08 f8 d4 08 63 05 40 63 3c 10 cd 00 

18:41:58.001 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:58.001 debug libnfc.chip.pn53x PN53x ACKed

18:41:58.002 debug libnfc.driver.pn53x_usb RX: 00 00 ff 03 fd d5 09 00 22 00 

18:41:58.002 debug libnfc.chip.pn53x RFConfiguration

18:41:58.002 debug libnfc.driver.pn53x_usb TX: 00 00 ff 06 fa d4 32 05 ff ff ff f8 00 

18:41:58.003 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:58.003 debug libnfc.chip.pn53x PN53x ACKed

18:41:58.003 debug libnfc.driver.pn53x_usb RX: 00 00 ff 02 fe d5 33 f8 00 

18:41:58.003 debug libnfc.chip.pn53x InJumpForDEP

18:41:58.003 debug libnfc.chip.pn53x Timeout value: 300

18:41:58.003 debug libnfc.driver.pn53x_usb TX: 00 00 ff 17 e9 d4 56 00 02 07 00 ff ff 00 0f 00 01 02 03 04 05 06 07 08 09 46 66 6d 7a 00 

18:41:58.004 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:58.004 debug libnfc.chip.pn53x PN53x ACKed

18:41:58.046 debug libnfc.driver.pn53x_usb RX: 00 00 ff 20 e0 d5 57 00 01 01 fe 72 30 1d 5c be 37 6c 91 00 00 00 0e 32 46 66 6d 01 01 11 03 02 00 13 04 01 96 a8 00 

libllcp.mac.link (SCM Micro / SCL3711-NFC&RW) nfc_initiator_poll_dep_target() succeeded

libllcp.mac.link (SCM Micro / SCL3711-NFC&RW) LLCP Link activated (initiator)

libllcp.llc.link llc_link_configure (0x9e80298, (nil), 0)

libllcp.llc.link mq_open (/libllcp-14393-0x9e80298-up)

libllcp.llc.link mq_open (/libllcp-14393-0x9e80298-down)

libllcp.llc.link LLC Link started successfully

libllcp.llc.llc (0xb74cfb40) Link activated

libllcp.llc.llc (0xb74cfb40) mq_receive+

libllcp.mac.link Sending 2 bytes

libllcp.mac.link LTOs: 1000 ms (local), 100 ms (remote)

18:41:58.046 debug libnfc.chip.pn53x InDataExchange

18:41:58.046 debug libnfc.chip.pn53x Timeout value: 1100

18:41:58.046 debug libnfc.driver.pn53x_usb TX: 00 00 ff 05 fb d4 40 01 00 00 eb 00 

18:41:58.047 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:58.047 debug libnfc.chip.pn53x PN53x ACKed

libllcp.mac.link Could not send 2 bytes

libllcp.mac.link NFC error: Timeout

libllcp.mac.link Received 0 bytes (Requested 8192, buffer size 0)

libllcp.mac.link Received 0 PDU bytes

libllcp.mac.link Sending 2 bytes

libllcp.mac.link Sending 2 bytes

libllcp.mac.link LTOs: 1000 ms (local), 100 ms (remote)

18:41:58.951 debug libnfc.chip.pn53x InDataExchange

18:41:58.951 debug libnfc.chip.pn53x Timeout value: 1100

18:41:58.951 debug libnfc.driver.pn53x_usb TX: 00 00 ff 05 fb d4 40 01 11 20 ba 00 

18:41:58.961 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:58.961 debug libnfc.chip.pn53x PN53x ACKed

libllcp.mac.link Could not send 2 bytes

libllcp.mac.link pdu_send returned -6

libllcp.mac.link Received 0 bytes (Requested 8192, buffer size 0)

libllcp.mac.link Received 0 PDU bytes

libllcp.mac.link Sending 2 bytes

libllcp.mac.link Sending 2 bytes

libllcp.mac.link LTOs: 1000 ms (local), 100 ms (remote)

18:41:59.966 debug libnfc.chip.pn53x InDataExchange

18:41:59.966 debug libnfc.chip.pn53x Timeout value: 1100

18:41:59.966 debug libnfc.driver.pn53x_usb TX: 00 00 ff 05 fb d4 40 01 00 00 eb 00 

18:41:59.976 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:41:59.976 debug libnfc.chip.pn53x PN53x ACKed

libllcp.mac.link Could not send 2 bytes

libllcp.mac.link pdu_send returned -6

libllcp.mac.link Received 0 bytes (Requested 8192, buffer size 0)

libllcp.mac.link Received 0 PDU bytes

libllcp.mac.link Sending 2 bytes

libllcp.mac.link Sending 2 bytes

libllcp.mac.link LTOs: 1000 ms (local), 100 ms (remote)

18:42:00.979 debug libnfc.chip.pn53x InDataExchange

18:42:00.979 debug libnfc.chip.pn53x Timeout value: 1100

18:42:00.979 debug libnfc.driver.pn53x_usb TX: 00 00 ff 05 fb d4 40 01 00 00 eb 00 

18:42:00.980 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:42:00.980 debug libnfc.chip.pn53x PN53x ACKed

^Clibllcp.llc.connection Stopping Data Link Connection [32 -> 4]

libllcp.llc.link Deactivating LLC Link

libllcp.llc.link The LLC Link has an active MAC link

libllcp.mac.link MAC Link deactivation requested (reason: 0)

18:42:01.583 debug libnfc.driver.pn53x_usb TX: 00 00 ff 00 ff 00 

libllcp.mac.link Could not send 2 bytes

18:42:01.587 debug libnfc.chip.pn53x InDeselect

18:42:01.587 debug libnfc.driver.pn53x_usb TX: 00 00 ff 03 fd d4 44 00 e8 00 

18:42:01.593 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:42:01.593 debug libnfc.chip.pn53x PN53x ACKed

libllcp.mac.link pdu_send returned -7

libllcp.mac.link MAC Link deactivated

libllcp.llc.link Back to LLC Link deactivation

libllcp.llc.link Stopping Data Link Connection [110 -> 183]

libllcp.llc.connection Stopping Data Link Connection [32 -> 4]

libllcp.llc.connection Freeing Data Link Connection [32 -> 4]

libllcp.llc.link Data Link Connection [110 -> 183] stopped

libllcp.llc.link LLC Link deactivated

libllcp.llc.link Freeing service 32

libllcp.llc.link Freeing service 1

18:42:01.755 debug libnfc.driver.pn53x_usb TX: 00 00 ff 00 ff 00 

18:42:01.756 debug libnfc.chip.pn53x InRelease

18:42:01.756 debug libnfc.driver.pn53x_usb TX: 00 00 ff 03 fd d4 52 00 da 00 

18:42:01.765 debug libnfc.driver.pn53x_usb RX: 00 00 ff 00 ff 00 

18:42:01.765 debug libnfc.chip.pn53x PN53x ACKed

root@probook:/home/sriram/out/x86/bin# 

Regards,

Sriram

[Jiapeng Li]

Please try snep-server to see what is happening. 

Also. Now there is a new branch of libllcp named `socket`, 

this `socket` branch adds some new features to libllcp, see commits for details.

but it is a beta version, need some test to see if it is stable, feel free to try it.

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[Jiapeng Li]

By the way, what is the version of your Android?

[Sriram Gopalan]

Thanks. I will try the socket branch and post back. 

The Android version on Moto-X is  4.4 Kitkat

Sriram