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path: root/examples/lpc43xx/hackrf-jellybean/miniblink/miniblink.c
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/*
 * This file is part of the libopencm3 project.
 *
 * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
 * Copyright (C) 2012 Michael Ossmann <mike@ossmann.com>
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <libopencm3/lpc43xx/gpio.h>
#include <libopencm3/lpc43xx/scu.h>

#include "../jellybean_conf.h"

void gpio_setup(void)
{
    /* Configure SCU Pin Mux as GPIO */
    scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_FAST);
    scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_FAST);
    scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_FAST);

    scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_FAST);

    scu_pinmux(SCU_PINMUX_BOOT0, SCU_GPIO_FAST);
    scu_pinmux(SCU_PINMUX_BOOT1, SCU_GPIO_FAST);
    scu_pinmux(SCU_PINMUX_BOOT2, SCU_GPIO_FAST);
    scu_pinmux(SCU_PINMUX_BOOT3, SCU_GPIO_FAST);

    /* Configure all GPIO as Input (safe state) */
    GPIO0_DIR = 0;
    GPIO1_DIR = 0;
    GPIO2_DIR = 0;
    GPIO3_DIR = 0;
    GPIO4_DIR = 0;
    GPIO5_DIR = 0;
    GPIO6_DIR = 0;
    GPIO7_DIR = 0;

    /* Configure GPIO as Output */
	GPIO2_DIR |= (PIN_LED1|PIN_LED2|PIN_LED3); /* Configure GPIO2[1/2/8] (P4_1/2 P6_12) as output. */
	GPIO3_DIR |= PIN_EN1V8; /* GPIO3[6] on P6_10  as output. */
}

u32 boot0, boot1, boot2, boot3;

int main(void)
{
	int i;
	gpio_setup();

    /* Set 1V8 */
    gpio_set(PORT_EN1V8, PIN_EN1V8);

	/* Blink LED1/2/3 on the board and Read BOOT0/1/2/3 pins. */
	while (1) 
    {
        boot0 = BOOT0_STATE;
	    boot1 = BOOT1_STATE;
	    boot2 = BOOT2_STATE;
	    boot3 = BOOT3_STATE;

		gpio_set(PORT_LED1_3, (PIN_LED1|PIN_LED2|PIN_LED3)); /* LEDs on */
		for (i = 0; i < 2000000; i++)	/* Wait a bit. */
			__asm__("nop");
		gpio_clear(PORT_LED1_3, (PIN_LED1|PIN_LED2|PIN_LED3)); /* LED off */
		for (i = 0; i < 2000000; i++)	/* Wait a bit. */
			__asm__("nop");
	}

	return 0;
}