83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
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* Copyright (C) 2012 Michael Ossmann <mike@ossmann.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/lpc43xx/gpio.h>
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#include <libopencm3/lpc43xx/scu.h>
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#include "../jellybean_conf.h"
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static void gpio_setup(void)
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{
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/* Configure SCU Pin Mux as GPIO */
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scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_BOOT0, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_BOOT1, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_BOOT2, SCU_GPIO_FAST);
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scu_pinmux(SCU_PINMUX_BOOT3, SCU_GPIO_FAST);
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/* Configure all GPIO as Input (safe state) */
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GPIO0_DIR = 0;
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GPIO1_DIR = 0;
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GPIO2_DIR = 0;
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GPIO3_DIR = 0;
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GPIO4_DIR = 0;
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GPIO5_DIR = 0;
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GPIO6_DIR = 0;
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GPIO7_DIR = 0;
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/* Configure GPIO as Output */
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GPIO2_DIR |= (PIN_LED1|PIN_LED2|PIN_LED3); /* Configure GPIO2[1/2/8] (P4_1/2 P6_12) as output. */
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GPIO3_DIR |= PIN_EN1V8; /* GPIO3[6] on P6_10 as output. */
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}
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u32 boot0, boot1, boot2, boot3;
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int main(void)
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{
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int i;
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gpio_setup();
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/* Set 1V8 */
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gpio_set(PORT_EN1V8, PIN_EN1V8);
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/* Blink LED1/2/3 on the board and Read BOOT0/1/2/3 pins. */
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while (1)
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{
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boot0 = BOOT0_STATE;
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boot1 = BOOT1_STATE;
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boot2 = BOOT2_STATE;
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boot3 = BOOT3_STATE;
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gpio_set(PORT_LED1_3, (PIN_LED1|PIN_LED2|PIN_LED3)); /* LEDs on */
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for (i = 0; i < 2000000; i++) /* Wait a bit. */
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__asm__("nop");
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gpio_clear(PORT_LED1_3, (PIN_LED1|PIN_LED2|PIN_LED3)); /* LED off */
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for (i = 0; i < 2000000; i++) /* Wait a bit. */
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__asm__("nop");
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}
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return 0;
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}
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