Hi,
I am working on the "pin_change_init" example to develop my interrupt based function.
I have added three pins/buttons into it and out of which only are working properly. I don't know why it is like so.
Is their any limitation or setting in which we have define the max pin/buttons which we are going to used ... ???
For more I am sharing my developed code for reference ... if I am going wrong please correct me ...
My code :
/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
/** @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"
#include "nrf_delay.h"
#include "nrf_gpio.h"
#define PIN_IN 06
#define PIN_IN_1 07
#define PIN_IN_2 03
#define PIN_OUT 13
#define PIN_OUT_1 14
void in_pin_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action)
{
if(pin == PIN_IN)
{
nrf_drv_gpiote_out_toggle(PIN_OUT);
}
if(pin == PIN_IN_1){
nrf_drv_gpiote_out_toggle(PIN_OUT);
}
if(pin == PIN_IN_2)
{
nrf_drv_gpiote_out_toggle(PIN_OUT);
}
}
/**
* @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(PIN_OUT, &out_config);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_out_config_t out_config_1 = GPIOTE_CONFIG_OUT_SIMPLE(false);
err_code = nrf_drv_gpiote_out_init(PIN_OUT_1, &out_config_1);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);
in_config.pull = NRF_GPIO_PIN_NOPULL;
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);
nrf_drv_gpiote_in_config_t in_config_1 = GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);
in_config_1.pull = NRF_GPIO_PIN_PULLDOWN;
err_code = nrf_drv_gpiote_in_init(PIN_IN_1, &in_config_1, in_pin_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(PIN_IN_1, true);
nrf_drv_gpiote_in_config_t in_config_2 = GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);
in_config_2.pull = NRF_GPIO_PIN_NOPULL;
err_code = nrf_drv_gpiote_in_init(PIN_IN_2, &in_config_2, in_pin_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(PIN_IN_2, true);
}
/**
* @brief Function for application main entry.
*/
int main(void)
{
gpio_init();
while (true)
{
// Do nothing.
}
}
/** @} */
Here My
nrf_drv_gpiote_in_config_t in_config_2 = GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);
in_config_2.pull = NRF_GPIO_PIN_NOPULL;
err_code = nrf_drv_gpiote_in_init(PIN_IN_2, &in_config_2, in_pin_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(PIN_IN_2, true);
IN this PIN_IN_2 was not working in my code ....
Looking forward for the solution ....
Thanks
