undefined reference to `nrfx_twi_tx'

[Mickael Marty]

Hello,

I have a twi module developped using sdk v13. I want to upgrade it to the sdk 15 to integrate it to a mesh project.

I changed all nrf_drv functions to nrfx same with structures.

I enabled TWI in sdk_config.h

i added the following path to my project:

$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/softdevice/s132/headers/
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/softdevice/s132/headers/nrf52/
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/mdk
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/hal
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/drivers
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/drivers/includes
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/templates/nRF52832
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/toolchain/cmsis/include
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/toolchain/gcc
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/toolchain/cmsis/dsp/GCC
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/boards
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/integration/nrfx
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/log
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/util
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/delay
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/integration/nrfx/legacy
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/drivers/include
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/external/custom_mesh_utilities
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/experimental_log
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/experimental_log/src
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/experimental_section_vars
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/experimental_memobj
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/balloc
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/bsp
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/components/libraries/button
$(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/config/nrf52832/config

I still get the error undefined reference to `nrfx_twi_tx'

Any idea of what I am doing wrong?

I am using SES.

Thank you for helping.

Regards,

Mickael

[Vidar Berg]

Hello, 

NRFX_TWI_ENABLED must be set to '1' in your sdk_config.h header. You may use the sdk_config.h from the twi_sensor example in SDK 15 as reference, or have you enabled it already? 

Regards,

Vidar

[Mickael Marty]

Hello,

thank you for your answer.

I have already enabled NRFX_TWI_ENABLED in sdk_config.h and i modified it to the following:

#ifndef TWI_ENABLED
#define TWI_ENABLED 1
#endif

#ifndef TWI_DEFAULT_CONFIG_FREQUENCY
#define TWI_DEFAULT_CONFIG_FREQUENCY 26738688
#endif

#ifndef TWI_DEFAULT_CONFIG_CLR_BUS_INIT
#define TWI_DEFAULT_CONFIG_CLR_BUS_INIT 1
#endif

#ifndef TWI_DEFAULT_CONFIG_HOLD_BUS_UNINIT
#define TWI_DEFAULT_CONFIG_HOLD_BUS_UNINIT 0
#endif

#ifndef TWI_DEFAULT_CONFIG_IRQ_PRIORITY
#define TWI_DEFAULT_CONFIG_IRQ_PRIORITY 0
#endif

#ifndef TWI0_ENABLED
#define TWI0_ENABLED 1
#endif

I still get the errors.

Regards,

Mickael

[Mickael Marty]

I got it.

I was missing TWI0_USE_EASY_DMA.

But I now have 'NRFX_TWI0_INST_IDX' undeclared here (not in a function) while doing

static const nrfx_twi_t _i2c = NRFX_TWI_INSTANCE(0);

i included the following to that file.

#include "nrf.h"
#include "nrfx_twi.h"
#include "nrf_delay.h"
#include "nrfx_gpiote.h"
#include "bsp.h"
#include "app_util_platform.h"

regards,

Mickael

[Vidar Berg]

Thanks for the update. TWI is the legacy implementation (same as used on the 51 series), and it becomes TWIM once you enable easyDMA. Try using NRFX_TWIM_INSTANCE(0) instead.

[Mickael Marty]

I tried with NRFX_TWIM_INSTANCE(0) as you suggested.

I included "nrfx_twim.h", and changed the functions and structures from nrfx_twi to nrfx_twim.

I'm back with "undefined reference to `nrfx_twim_tx'".

I have NRFX_TWIM_ENABLED and NRFX_TWIM0_ENABLED at the moment, as well as NRFX_TWI_ENABLED and NRFX_TWI0_ENABLED