I can't control by pin number.

Thank you for your help.
We are currently developing hardware using nrf52840. I would like to use pin numbers to control LED lighting, but when the port number is 0, I can use "NRF_GPIO_PIN_MAP(0, xx)" to control the LEDs, but when the port number is 1, I can't control the LEDs. NRF_GPIO_PIN_MAP (1. xx)" will not work. I am new to development, so it could be due to some rudimentary part. Thank you in advance for your help.

0 Edvin over 3 years ago

Hello,

Based on the NRF_GPIO_PIN_MAP() API, I assume you are using nRF5 SDK. Please correct me if I am wrong, and also, please specify what SDK release version you are using.

I am not quite sure what you are trying to do, but perhaps you can test this main.c file with the SDK_17.1.0\examples\peripheral\pin_change_int example:

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 *    contributors may be used to endorse or promote products derived from this
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 *    Nordic Semiconductor ASA integrated circuit.
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/** @file
 * @defgroup pin_change_int_example_main main.c
 * @{
 * @ingroup pin_change_int_example
 * @brief Pin Change Interrupt Example Application main file.
 *
 * This file contains the source code for a sample application using interrupts triggered by GPIO pins.
 *
 */

#include <stdbool.h>
#include "nrf.h"
#include "nrf_drv_gpiote.h"
#include "app_error.h"
#include "boards.h"

#define MY_GPIO NRF_GPIO_PIN_MAP(1,9)

#ifdef BSP_BUTTON_0
    #define PIN_IN BSP_BUTTON_0
#endif
#ifndef PIN_IN
    #error "Please indicate input pin"
#endif

#ifdef BSP_LED_0
    #define PIN_OUT BSP_LED_0
#endif

/*#ifdef MY_GPIO BSP_LED_0
    #define PIN_OUT MY_GPIO
#endif*/

#ifndef PIN_OUT
    #error "Please indicate output pin"
#endif

void in_pin_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action)
{
    nrf_drv_gpiote_out_toggle(MY_GPIO);
}
/**
 * @brief Function for configuring: PIN_IN pin for input, PIN_OUT pin for output,
 * and configures GPIOTE to give an interrupt on pin change.
 */
static void gpio_init(void)
{
    ret_code_t err_code;

    err_code = nrf_drv_gpiote_init();
    APP_ERROR_CHECK(err_code);

    nrf_drv_gpiote_out_config_t out_config = GPIOTE_CONFIG_OUT_SIMPLE(false);

    err_code = nrf_drv_gpiote_out_init(MY_GPIO, &out_config);
    APP_ERROR_CHECK(err_code);

    nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_TOGGLE(true);
    in_config.pull = NRF_GPIO_PIN_PULLUP;

    err_code = nrf_drv_gpiote_in_init(PIN_IN, &in_config, in_pin_handler);
    APP_ERROR_CHECK(err_code);

    nrf_drv_gpiote_in_event_enable(PIN_IN, true);
}

/**
 * @brief Function for application main entry.
 */
int main(void)
{
    gpio_init();

    while (true)
    {
        // Do nothing.
    }
}


/** @} */

At least, it allows me to control P1.09 as an output pin, which will toggle whenever I am pressing button1 on the DK.

If you are using some other library that doesn't work with port 1 (NRF_GPIO_PIN_MAP(1,xx), please let me know what you are trying to use. If possible, please upload the project (you can zip the project folder and upload it here). Perhaps there is some bug or setting that doesn't work in your current setup.

Best regards,

Edvin