86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
|
|
* Copyright 2010 - 2012 Michael Ossmann
|
|
*
|
|
* This file is part of HackRF.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <libopencm3/lpc43xx/gpio.h>
|
|
#include <libopencm3/lpc43xx/scu.h>
|
|
|
|
#include "hackrf_core.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 GPIO2[1/2/8] (P4_1/2 P6_12) as output. */
|
|
GPIO2_DIR |= (PIN_LED1|PIN_LED2|PIN_LED3);
|
|
|
|
/* GPIO3[6] on P6_10 as output. */
|
|
GPIO3_DIR |= PIN_EN1V8;
|
|
}
|
|
|
|
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;
|
|
}
|