PPI AND SOFTDEVICE

RE: PPI AND SOFTDEVICE

thomas — Fri, 09 May 2014 13:38:14 GMT

I can't due to confidentiality. I will open a new support case.

Thanks

-------------------------------Edit 30/07/14------------------------------------------

Here response from nordic's support. It may be helpful....

Hi,

I tried to compile and run your code, but think the hardfault occur when you try to write to the CLOCK module directly, this module is protected by the softdevice. The solution is to use the nrf_soc API in timer_init() as shown below:

/** @brief Function for initializing the Timer 2 peripheral.

 */

static void timer_init(void)

{

    // Start 16 MHz crystal oscillator .

    //NRF_CLOCK->EVENTS_HFCLKSTARTED  = 0;

    //NRF_CLOCK->TASKS_HFCLKSTART     = 1;

    sd_clock_hfclk_request();

 

    // Wait for the external oscillator to start up.

    //while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0)

    //{

        //Do nothing.

    //}

    uint32_t crystal_is_running = 0;

   

    while(!crystal_is_running)

    {

        sd_clock_hfclk_is_running(&crystal_is_running);

    }   

 

    PWM_TIMER->MODE                = TIMER_MODE_MODE_Timer;

                                PWM_TIMER->BITMODE                                             = 0;

                                PWM_TIMER->PRESCALER                          = PRESCAL ;

                               

    // Clears the timer, sets it to 0.

    PWM_TIMER->TASKS_CLEAR = 1;

                               

    // Interrupt setup.

    PWM_TIMER->INTENSET = TIMER_INTENSET_COMPARE0_Msk | TIMER_INTENSET_COMPARE1_Msk;

                                                                                                                                                                 

}

Best regards,

RE: PPI AND SOFTDEVICE

Håkon Alseth — Fri, 09 May 2014 13:32:24 GMT

Could you attach the whole project so I can debug it?

Best regards Håkon

RE: PPI AND SOFTDEVICE

thomas — Fri, 09 May 2014 13:30:08 GMT

Non i'm not calling them from an interrupt

Attached my code.

Error occure line 101 of nrf_tone.c

nrf_tone.c

nrf_tone.h

RE: PPI AND SOFTDEVICE

Håkon Alseth — Fri, 09 May 2014 13:26:05 GMT

Are you calling the sd_ppi-functions from an interrupt?

RE: PPI AND SOFTDEVICE

thomas — Fri, 09 May 2014 13:24:03 GMT

I'm using s110 6.0.0 and SDK 5.2.0.

Peripherals :

Timer2 ( normally free )
PPI Chanel 0
GPIO 8
GPIOTE task 0

RE: PPI AND SOFTDEVICE

Håkon Alseth — Fri, 09 May 2014 13:18:28 GMT

Hi,

That sounds strange. All the peripherals that you're using are open for the application and should not cause a hardfault.

Which SDK are you developing on?
What version of the softdevice are you using?

Best regards Håkon