dbba22397c
Applies to #4008 and #5159 for this board. Problem is that the button interrupt callback was only firing once. Solution is to set the pin pull up flag to GPIO_PUD_PULL_UP. Signed-off-by: Anders Pitman <tapitman11@gmail.com> Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
/*
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* Copyright (c) 2016 Open-RnD Sp. z o.o.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <board.h>
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#include <device.h>
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#include <gpio.h>
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#include <misc/util.h>
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#include <misc/printk.h>
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/* change this to use another GPIO port */
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#ifdef SW0_GPIO_NAME
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#define PORT SW0_GPIO_NAME
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#else
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#error SW0_GPIO_NAME needs to be set in board.h
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#endif
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/* change this to use another GPIO pin */
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#ifdef SW0_GPIO_PIN
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#define PIN SW0_GPIO_PIN
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#else
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#error SW0_GPIO_PIN needs to be set in board.h
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#endif
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/* change to use another GPIO pin interrupt config */
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#ifdef SW0_GPIO_INT_CONF
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#define EDGE SW0_GPIO_INT_CONF
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#else
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/*
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* If SW0_GPIO_INT_CONF not defined used default EDGE value.
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* Change this to use a different interrupt trigger
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*/
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#define EDGE (GPIO_INT_EDGE | GPIO_INT_ACTIVE_LOW)
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#endif
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/* change this to enable pull-up/pull-down */
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#ifdef SW0_GPIO_PIN_PUD
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#define PULL_UP SW0_GPIO_PIN_PUD
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#else
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#define PULL_UP 0
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#endif
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/* Sleep time */
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#define SLEEP_TIME 500
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void button_pressed(struct device *gpiob, struct gpio_callback *cb,
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u32_t pins)
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{
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printk("Button pressed at %d\n", k_cycle_get_32());
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}
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static struct gpio_callback gpio_cb;
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void main(void)
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{
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struct device *gpiob;
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printk("Press the user defined button on the board\n");
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gpiob = device_get_binding(PORT);
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if (!gpiob) {
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printk("error\n");
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return;
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}
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gpio_pin_configure(gpiob, PIN,
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GPIO_DIR_IN | GPIO_INT | PULL_UP | EDGE);
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gpio_init_callback(&gpio_cb, button_pressed, BIT(PIN));
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gpio_add_callback(gpiob, &gpio_cb);
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gpio_pin_enable_callback(gpiob, PIN);
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while (1) {
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u32_t val = 0;
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gpio_pin_read(gpiob, PIN, &val);
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k_sleep(SLEEP_TIME);
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}
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}
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