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• How to build Espruino with NFC support (for nRF52840 boards)?

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• How to build Espruino with NFC support (for nRF52840 boards)?

  in Other Boards • 2 years, 11 months

  

  Ahhh cool! I forgot that nRF52840 is same as 52832/52833 + more memory/features. That's great, at least NRF.nfcURL is working! Many thanks @fanoush

• How to build Espruino with NFC support (for nRF52840 boards)?

  in Other Boards • 2 years, 11 months

  

  nRF SDK12 comes with folder nRF5_SDK_12.3.0_d7731ad\examples\nfc\record_text\pca10056 and that NFC example runs without issues on my nRF52840@Xenon board.

  @fanoush building without USB was a good idea because after some small changes the source can be compiled. The only thing that does not work is the linker! A *.ld file is missing in the SDK12 folder and copying targetlibs/nrf5x_15/nrf5x_linkers/linker_nrf52840_ble_espruino.ld + nrf_common.ld to the SDK12 folder builds the hex file but a lot of warnings will be thrown.

  If someone can help me fixing the link files it would be nice ;-)

• Particle Xenon NFC

  in Other Boards • 3 years

  

  Does this mean compilation only works with SDK12?

• How to build Espruino with NFC support (for nRF52840 boards)?

  in Other Boards • 3 years

  

  I'm trying to build Espruino for a nRF52840 device (Particle Xenon) and started with the following:

  //1st try with defaults
  git clone https://github.com/espruino/Espruino.git
  cd Espruino/
  source scripts/provision.sh NRF52840DK
  make clean && BOARD=NRF52840DK RELEASE=1 make
  

  and found out that the current source uses nRF SDK15 but "FIXME - SDK15 NFC patches don't apply cleanly" and some other fails appear. Building hex file works but executing NFC methods fail:

  NRF.nfcURL("http://espruino.com"); 
  Uncaught Error: Function "nfcURL" not found!
  

  I checked the source and found out that there is a USE_NFC option but seems that the build fails:

  BOARD=NRF52840DK RELEASE=1 USE_NFC=1 make
  ...
  targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c: In function 'hal_nfc_send':
  targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c:742:12: warning: passing argument 1 of 'memcpy' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers]
       memcpy(m_nfc_buffer, p_data, NFC_BUFFER_SIZE);
              ^~~~~~~~~~~~
  In file included from targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.h:56,
                   from targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c:44:
  ~/Espruino/gcc-arm-none-eabi-8-2018-q4-major/arm-none-eabi/include/string.h:31:9: note: expected 'void * restrict' but argument is of type 'volatile uint8_t *' {aka 'volatile unsigned char *'}
   void *  memcpy (void *__restrict, const void *__restrict, size_t);
           ^~~~~~
  targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c: In function 'NFCT_IRQHandler':
  targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c:874:17: error: 'm_nfc_rx_buffer' undeclared (first use in this function); did you mean 'm_nfc_buffer'?
               if (m_nfc_rx_buffer[0] == T2T_READ_CMD)
                   ^~~~~~~~~~~~~~~
                   m_nfc_buffer
  targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c:874:17: note: each undeclared identifier is reported only once for each function it appears in
  targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.c:874:39: error: 'T2T_READ_CMD' undeclared (first use in this function)
               if (m_nfc_rx_buffer[0] == T2T_READ_CMD)
                                         ^~~~~~~~~~~~
  make: *** [Makefile:799: ~/Espruino/targetlibs/nrf5x_15/components/nfc/t2t_lib/hal_t2t/hal_nfc_t2t.o] Error 1
  make: *** Waiting for unfinished jobs....
  

  There are 4 SDK folders under Espruino/targetlibs

  nrf5x_12
  nrf5x_14
  nrf5x_15
  nrf5x_17
  

  but provision.sh only supports SDK15 and SDK17.
  What is the best SDK version for building?

• Particle Xenon NFC

  in Other Boards • 3 years

  

  I'm also interested in this topic. Any update?