BLE stack re-initialize problem with FreeRTOS

RE: BLE stack re-initialize problem with FreeRTOS

Chongchun Moon — Tue, 07 May 2019 15:38:29 GMT

Hello Susheel,

It works for me also. But, If I tried enable and disable softdevice.

It looks Task for softdevice is not created due to memory shortage.

Is that Okay on your test?

Thanks,

Chongchun Moon

RE: BLE stack re-initialize problem with FreeRTOS

silivanov — Tue, 07 May 2019 02:37:27 GMT

Thank. This solves the problem.

RE: BLE stack re-initialize problem with FreeRTOS

Chongchun Moon — Mon, 06 May 2019 21:19:17 GMT

Hello Susheel,

Could you provide all the project file?

I also try to enable and disable softdevice with freeRTOS running.

But, It doesn't work. I want to see what you changed.

Thanks,

Chongchun Moon

RE: BLE stack re-initialize problem with FreeRTOS

Susheel Nuguru — Thu, 02 May 2019 12:17:25 GMT

It also depends on the context on when you are disabling the softdevice and when you want to enable it back.

Small test on my side shows that this works fine, but i have tested it crudely in the idle handler like this

void vApplicationIdleHook( void )
{
    ret_code_t err_code;
  static uint32_t count = 0;
#if NRF_LOG_ENABLED
     vTaskResume(m_logger_thread);
#endif
  
  if (count++ == 0)
  {
        application_timers_stop();
    nrf_sdh_disable_request();
    nrf_sdh_freertos_deinit();


    ble_stack_init();
    
    application_timers_start();
    nrf_sdh_freertos_init(advertising_start, &erase_bonds);
  }

}

RE: BLE stack re-initialize problem with FreeRTOS

Susheel Nuguru — Thu, 02 May 2019 10:49:05 GMT

try this.

remove heap_1.c and add heap_2.c file in your project. Since heap_1,c does not support deletion of heap memory needed to delete the task.

add the below function in nrf_sdh_freertos.c

void nrf_sdh_freertos_deinit()
{
     // Use the handle to delete the task.
     if( m_softdevice_task != NULL )
     {
         vTaskDelete( m_softdevice_task );
     }
}

when you disable the softdevice delete the task along with disable

nrf_sdh_disable_request();
nrf_sdh_freertos_deinit();

When you want to reenable the softdevice, then do the below

    err_code = nrf_sdh_enable_request();
    APP_ERROR_CHECK(err_code);
    
    nrf_sdh_freertos_init(advertising_start, &erase_bonds);

Should work fine .

RE: BLE stack re-initialize problem with FreeRTOS

Vladimir Aparin — Fri, 26 Apr 2019 14:24:31 GMT

Can anybody help with this question?
I'm very interesting in this question too. But I can't found the solution.