Launch app through NFC Tag scanning in custom application!!!

[Urvisha Andani]

Hello,

I am working on nRF52832 SDK 15.3.0 using segger embedded studio in windows 7.

I am trying to merge two application, one is launch application through NFC and other is template code given in SDK .

1)launch application path: ..\..\examples\nfc\record_launch_app\pca10040\blank\ses

2)template path:..\..\examples\ble_peripheral\ble_app_template\pca10040\s132\ses

In this i got error as shown below,

Generating linker script ‘ble_app_template_pca10040_s132.ld’
Linking ble_app_template_pca10040_s132.elf
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o): in function nrfx_nfct_evt_handler':
undefined reference tonrfx_nfct_rx'
C:\build\HP-NFCL74-JOB1\private\nfc_t2t_lib\armgcc/../nfc_t2t_lib_al.c:302: undefined reference to nrfx_nfct_rx'
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o): in functionnrf_nfct_rx_frameend_handle':
undefined reference to nrfx_nfct_init_substate_force'
C:\build\HP-NFCL74-JOB1\private\nfc_t2t_lib\armgcc/../nfc_t2t_lib_al.c:271: undefined reference tonrfx_nfct_init_substate_force'
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o): in function nfc_t2t_lib_al_setup':
undefined reference tonrfx_nfct_nfcid1_default_bytes_get'
C:\build\HP-NFCL74-JOB1\private\nfc_t2t_lib\armgcc/../nfc_t2t_lib_al.c:126: undefined reference to nrfx_nfct_init'
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o): in functionnfc_t2t_lib_al_start':
undefined reference to nrfx_nfct_enable'
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o): in functionnfc_t2t_lib_al_send':
undefined reference to nrfx_nfct_tx'
Output/ble_app_template_pca10040_s132 Release/Obj/nfc_platform.o: in functionclock_event_handler':
undefined reference to `nrfx_nfct_state_force'
Build failed

 Regards,

Urvisha Andani

[Edvin]

Hello,

It is probably because in your template project, which I then assume that you started with, hasn't defined NRFX_NFCT_ENABLED as 1 in sdk_config.h, like it is in the record_launch_app example.

The function nrfx_nfct_state_force() is defined in nrfx_nfct.c. Make sure that this file is included in your project. In addition, you can see on line 43 in this file, there is an:

#if NRFX_CHECK(NRFX_NFCT_ENABLED).

It is just a macro saying:

#if NRFX_NFCT_ENABLED

If NRFX_NFCT_ENABLED is defined to 0, then this will be excluded for the compiler. Everything between line 43 and 905:

#endif // NRFX_CHECK(NRFX_NFCT_ENABLED) will be excluded.

So define NRFX_NFCT_ENABLED to 1 in sdk_config. If that define is missing, just copy it from the redord_launch_app example's sdk_config.h file.

[Urvisha Andani]

Edvin said:

#if NRFX_NFCT_ENABLED

If NRFX_NFCT_ENABLED is defined to 0, then this will be excluded for the compiler. Everything between line 43 and 905:

#endif // NRFX_CHECK(NRFX_NFCT_ENABLED) will be excluded.

So define NRFX_NFCT_ENABLED to 1 in sdk_config. If that define is missing, just copy it from the redord_launch_app example's sdk_config.h file.

I made changes as per your suggestion but still I am getting error as shown below,

'NRFX_TIMER4_INST_IDX' undeclared here (not in a function); did you mean 'NRFX_TIMER_INSTANCE'?

 

Regards,

Urvisha Andani

[Edvin]

Is the nrfx_nfct.c file included in your project?

[Urvisha Andani]

Edvin said:

Is the nrfx_nfct.c file included in your project?

Thank you for reply.

Yes I added this file but now I am getting below error,

Generating linker script ‘ble_app_template_pca10040_s132.ld’
Linking ble_app_template_pca10040_s132.elf
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib.c.o) uses VFP register arguments, Output/Debug/Exe/ble_app_template_pca10040_s132.elf does not
failed to merge target specific data of file ../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib.c.o)
../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o) uses VFP register arguments, Output/Debug/Exe/ble_app_template_pca10040_s132.elf does not
failed to merge target specific data of file ../../../../../../components/nfc/t2t_lib/nfc_t2t_lib_gcc.a(nfc_t2t_lib_al.c.o)
Build failed

Please give me solution.

[Edvin]

Have you changed anything in the nfc's header files? try to unzip a new SDK, and copy the NFC files from that one to the one you are working on. 

[Urvisha Andani]

Edvin said:

Have you changed anything in the nfc's header files?

I am not changed anything in nfc's header files.

In ble app template code I am not getting any problem but in my application code I am getting error which is mention previously.

In my application code I added,

1)Device information service

2)Battery service

3)Two custom service

4)DFU service

5)SAADC functionality, In this I take ADC value from 2 pin.

6)GPIOTE interrupt routine, In this I take 1 pin as interrupt.

7)NFC launched app functionality.

Please give me solution.

Regards,

Urvisha Andani  

[Edvin]

I found this:

https://stackoverflow.com/questions/9753749/arm-compilation-error-vfp-registered-used-by-executable-not-object-file

It looks like a floating point configuration issue.

Is it possible to zip the project folder and send it here?

[Urvisha Andani]

Edvin said:

It looks like a floating point configuration issue.

Thanks for reply.

I have followed the link provided by you, I got solution.

I changed below setting,

Project-> Option-> Common-> Code generation-> ARM FP ABI  Type = Hard

Regards,

Urvisha Andani