nRF52840: LEDs cannot work after change the port and pin.

[Peggy TAN]

Hi All,

I am doing a Mesh development project with nRF52840 and a custom board.
SDK version: nrf5SDKforMeshv320
Testing Example: light_switch

I had changed the port/pin for LEDs:

Original:
#define LEDS_NUMBER 4

#define LED_1 NRF_GPIO_PIN_MAP(0,13)
#define LED_2 NRF_GPIO_PIN_MAP(0,14)
#define LED_3 NRF_GPIO_PIN_MAP(0,15)
#define LED_4 NRF_GPIO_PIN_MAP(0,16)
#define LED_START LED_1
#define LED_STOP LED_4

Custom Board:
#define LEDS_NUMBER 2

#define LED_1 NRF_GPIO_PIN_MAP(1,1)
#define LED_2 NRF_GPIO_PIN_MAP(1,2)
#define LED_START LED_1
#define LED_STOP LED_2

Although the NRF_GPIO_PIN_MAP(port, pin)  had been changed, it is able to work with nRF5_SDK_15.3.0 but does not work with MESH example (nrf5SDKforMeshv320).
Please kindly need your help to advice if there is any other modification is needed in order to use port 1 for LEDs toggle.

[AndreasF]

Hi.

I think the problem is that in Mesh, you use BSP_LED_1 and so on.

Can you try to redefine BSP_LED_1 with NRF_GPIO_PIN_MAP(1,1) ?

Best regards,

Andreas

[Peggy TAN]

Hi Andreas, sorry, I am new to this development.

I had redefine the BSP_LED_1 with NRF_GPIO_PIN_MAP(1,1), but the LED still not working.

Btw, I found that the registers for port 1 is different with port 0:

And the code shown:

void hal_leds_init(void)
{
for (uint32_t i = LED_START; i <= LED_STOP; ++i)
{
NRF_P1->PIN_CNF[i] = LED_PIN_CONFIG;
NRF_P1->OUTSET = 1UL << i;
}

is it the reason of not working?

How can i fix this?

[AndreasF]

Hi.

The function hal_leds_init() does not work.

What would work is if you can instead initialize all the PINS you're using as output manually for each pin, by using the function nrf_gpio_cfg_output

__STATIC_INLINE void nrf_gpio_cfg_output(uint32_t pin_number)

{

    nrf_gpio_cfg(

        pin_number,

        NRF_GPIO_PIN_DIR_OUTPUT,

        NRF_GPIO_PIN_INPUT_DISCONNECT,

        NRF_GPIO_PIN_NOPULL,

        NRF_GPIO_PIN_S0S1,

        NRF_GPIO_PIN_NOSENSE);

}

Best regards,

Andreas