Paparazzi UAS  v5.2.2_stable-0-gd6b9f29
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max1168_arch.c
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1 /*
2  * Copyright (C) 2010 Antoine Drouin <poinix@gmail.com>
3  *
4  * This file is part of paparazzi.
5  *
6  * paparazzi is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2, or (at your option)
9  * any later version.
10  *
11  * paparazzi is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with paparazzi; see the file COPYING. If not, write to
18  * the Free Software Foundation, 59 Temple Place - Suite 330,
19  * Boston, MA 02111-1307, USA.
20  */
21 #include "peripherals/max1168.h"
22 
23 #include "libopencm3/stm32/rcc.h"
24 #include "libopencm3/stm32/gpio.h"
25 #include "libopencm3/stm32/exti.h"
26 #include <libopencm3/cm3/nvic.h>
27 
28 #ifndef STM32F1
29 #error "HMC5843 arch currently only implemented for STM32F1"
30 #endif
31 
32 void max1168_arch_init( void ) {
33 
34  /* configure external interrupt exti2 on PD2( data ready ) v1.0*/
35  /* PB2( data ready ) v1.1*/
36  rcc_periph_clock_enable(RCC_GPIOB);
37  rcc_periph_clock_enable(RCC_AFIO);
38  gpio_set_mode(GPIOB, GPIO_MODE_INPUT,
39  GPIO_CNF_INPUT_FLOAT, GPIO2);
40 
41  exti_select_source(EXTI2, GPIOB);
42  exti_set_trigger(EXTI2, EXTI_TRIGGER_FALLING);
43  exti_enable_request(EXTI2);
44 
45  nvic_set_priority(NVIC_EXTI2_IRQ, 0xF);
46  nvic_enable_irq(NVIC_EXTI2_IRQ);
47 
48 }
49 
50 void exti2_isr(void) {
51 
52  /* clear EXTI */
53  exti_reset_request(EXTI2);
54 
56 
57 }
58 
#define GPIOB
Definition: gpio_arch.h:35
#define GPIO2
Definition: gpio_arch.h:39
void exti2_isr(void)
Definition: max1168_arch.c:50
void max1168_arch_init(void)
Definition: max1168_arch.c:31
volatile uint8_t max1168_status
Definition: max1168.c:27
#define NVIC_EXTI2_IRQ
#define MAX1168_GOT_EOC
Definition: max1168.h:61