PN7160 SPI EVK (OM27160B1EVK) on Raspberry Pi4 : no NFC tag detected

fr5 · ‎03-31-2022

Hi,

I followed instructions provided in these documents :
https://www.nxp.com/docs/en/application-note/AN12991.pdf
https://www.nxp.com/docs/en/application-note/AN13287.pdf
https://community.nxp.com/t5/NXP-Designs-Knowledge-Base/Easy-set-up-of-NFC-on-Raspberry-Pi/ta-p/1099... by @jeremygeslin

I have tested with nfcDemoApp on two different configurations.

On first configuration I used a Raspberry yocto image with https://github.com/NXPNFCLinux/meta-nxp-nfc/blob/master/recipes-nfc/nxp_nfc/nxp-nfc_git.bb recipe, with SRC_URI overrided to git://github.com/NXPNFCLinux/linux_libnfc-nci.git;branch=NCI2.0_PN7160 and SRCREV to "6bf9f42b94e267f6384043009bda84c11e7ebbaa".

On second configuration I used directly Raspberry debian distribution (debian version 11.2) on which I installed linux_libnfc-nci library got from git clone https://github.com/NXPNFCLinux/linux_libnfc-nci.git -b NCI2.0_PN7160

In both cases I am not able to detect a NFC tag (I attach the corresponding log files).

Can anyone help on this please ?

Regards,

Fabien

jeremygeslin · ‎04-04-2022

Hi Fabien,

From your logs, I can observe the discovery loop is started with the following NCI command:

21031309000101010201030180018101060174017701

This RF_DISCOVER_CMD is rejected by PN7160 with SYNTAX_ERROR:

41030105

FYI, the command detail is:

[NCI][COMMAND][21 03 13 09 00 01 01 01 02 01 03 01 80 01 81 01 06 01 74 01 77 01]
   RF_DISCOVER_CMD
      * Number of Configurations = 9 [0x09]
         --> Configuration N° 1
            - RF Technology and Mode = {Std} NFC_A_PASSIVE_POLL_MODE [0x00]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 2
            - RF Technology and Mode = {Std} NFC_B_PASSIVE_POLL_MODE [0x01]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 3
            - RF Technology and Mode = {Std} NFC_F_PASSIVE_POLL_MODE [0x02]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 4
            - RF Technology and Mode = {Std} NFC_A_ACTIVE_POLL_MODE (RFU) [0x03]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 5
            - RF Technology and Mode = {Std} NFC_A_PASSIVE_LISTEN_MODE [0x80]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 6
            - RF Technology and Mode = {Std} NFC_B_PASSIVE_LISTEN_MODE [0x81]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 7
            - RF Technology and Mode = {Std} NFC_15693_PASSIVE_POLL_MODE (RFU) [0x06]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 8
            - RF Technology and Mode = Reserved for Proprietary Technologies in Poll Mode [0x74]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

         --> Configuration N° 9
            - RF Technology and Mode = Reserved for Proprietary Technologies in Poll Mode [0x77]
            - Discovery Frequency    = RF Technology and Mode will be executed in every discovery period [0x01]

The "RF Technology and Mode" value 0x77 relates to KOVIO, as defined for PN7150, while it should be 0x70 for PN7160. We are currently analyzing why the proper value is not internally used by the libnfc-nci, but nevertheless disabling KOVIO from POLLING_TECH_MASK should remove the related configuration in the RF_DISCOVER_CMD.

Thus can you please verify the configuration files located under /usr/local/etc/, since those are the one dynamically loaded during libnfc-nci initialization (there are copied there during "make install" operation).

Regards,

Jeremy.

View solution in original post

MJY · ‎12-17-2023

This patch can only fix the poll mode; other modes are still facing the same error

MJY · ‎12-18-2023

It worked; I forgot to run 'make install'

andraz_skupek · ‎12-18-2023

Hi,

can you please send the error message?

Best regards,

Andraz

steve_delahunty · ‎04-27-2023

Yes, this patch will fix the issue. Good luck!

PN7160 SPI EVK (OM27160B1EVK) on Raspberry Pi4 : no NFC tag detected

PN7160 SPI EVK (OM27160B1EVK) on Raspberry Pi4 : no NFC tag detected

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