NRF52840 use ble_app_blinky source code add timer function?

[Ray Chiou]

I used ble_app_blinky source code want to add timer0 function.

main.c

const nrf_drv_timer_t m_timer0 = NRF_DRV_TIMER_INSTANCE(0);

static void timer0_event_handler(nrf_timer_event_t event_type, void * p_context)
{
}

I used ble_app_blinky source code want to add timer0 function.

main.c

const nrf_drv_timer_t m_timer0 = NRF_DRV_TIMER_INSTANCE(0);

static void timer0_event_handler(nrf_timer_event_t event_type, void * p_context)
{
}

static void timer0_init(void)
{
nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG;
ret_code_t err_code = nrf_drv_timer_init(&m_timer0, &timer_cfg, timer0_event_handler);
}

Compiler is OK. But I get a message "<error> app: SOFTDEVICE: INVALID MEMORY ACCESS 0x100"

[AndreasF]

Hi Ray.

TIMER0 is blocked when the SoftDevice is enabled. You can see this in the hardware access table in the infocenter.
You can also see in this table that TIMER1 and TIMER2 is open, so you should use these.

- Andreas

[Ray Chiou]

Hi AndreasF,

Sorry, I use timer2 is OK,but timer1 is false. I don't no what happend?

I have enable sdk_config.h.

[AndreasF]

Hi.

TIMER2 is exactly the same as TIMER1, so if TIMER1 doesn't work, then perhaps you use it somewhere else in your code?

- Andreas

[Ray Chiou]

Thank you very much.
I use timer1 to PWM function.