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NFC code not working

Gordon

Hi,

I'm trying to get NFC working on a PCA10040 dev board. Using the nfc/record_url hex file it works fine, so the hardware is obviously ok.

However, when I use the exact same code as in the record_url example from my software, it doesn't do anything. All functions execute without errors, but then log_uart_printf gets called with:

[NFC_HAL]: initialize
[NFC_HAL]: start
// ------------- put NFC device near 
[NFC_HAL]: fielddetected
[NFC_HAL]: reinitialize
[NFC_HAL]: fielddetected
[NFC_HAL]: fielddetected
[NFC_HAL]: reinitialize
[NFC_HAL]: fielddetected
[NFC_HAL]: reinitialize
[NFC_HAL]: fielddetected
[NFC_HAL]: reinitialize
[NFC_HAL]: fielddetected
[NFC_HAL]: fielddetected
[NFC_HAL]: fielddetected
[NFC_HAL]: fielddetected
[NFC_HAL]: reinitialize
[NFC_HAL]: fielddetected
[NFC_HAL]: reinitialize

Also, will the NFC code ever be distributed as something that's not a binary blob? I'm using a language interpreter (Espruino), and it expects functions to be compiled without hardware floating point (the call style is different). Currently the only way I can use NFC is to recompile with VFP, which means I'm then unable to pass floating point values into any functions!

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  • 0

    Hi Gordon,

    Attached is an example to use record_url in other example (ble_app_hrm). I don't see any issue. Could you try ?

    ble_app_hrs_URL_nfc - Copy.zip

  • 0 in reply to Hung Bui

    It wasn't defined, but I just added it - and still have the problem. Thanks for looking into this - compiling should be fine, just get the latest code from GitHub and NFC=1 NRF52832DK=1 make flash under Linux. You might also want to add return true to the start of jshSleep in targets/nrf5x/jshardware.c to stop it sleeping (but that doesn't make any difference either). If you have a word with Michael Dietz, he's done a lot of work on Espruino and could build it easily. Once running, connect to the UART at 9600 baud and type NRF.nfcURL("espruino.com") - that should start up NFC (I had experimented with using the NFC example code directly, and at boot - but there was no difference so I kept my original implementation).

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  • 0 in reply to Hung Bui

    It wasn't defined, but I just added it - and still have the problem. Thanks for looking into this - compiling should be fine, just get the latest code from GitHub and NFC=1 NRF52832DK=1 make flash under Linux. You might also want to add return true to the start of jshSleep in targets/nrf5x/jshardware.c to stop it sleeping (but that doesn't make any difference either). If you have a word with Michael Dietz, he's done a lot of work on Espruino and could build it easily. Once running, connect to the UART at 9600 baud and type NRF.nfcURL("espruino.com") - that should start up NFC (I had experimented with using the NFC example code directly, and at boot - but there was no difference so I kept my original implementation).

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