Paparazzi UAS  v5.2.2_stable-0-gd6b9f29
Paparazzi is a free software Unmanned Aircraft System.
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baro_board.c
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1  /*
2  * Copyright (C) 2010-2013 Gautier Hattenberger
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  */
22 
23 
24 /* driver for the analog Barometer Mpxa6115 using ADC ads1114 (16 bits I2C 860SpS max) from Texas instruments
25  * Navarro & Gorraz & Hattenberger
26  */
27 
28 #include "std.h"
29 #include "baro_board.h"
31 #include "peripherals/ads1114.h"
32 #include "subsystems/abi.h"
33 #include "led.h"
34 
35 // ADC for absolute pressure
36 #ifndef BARO_ABS_ADS
37 #define BARO_ABS_ADS ads1114_1
38 #endif
39 
40 // FIXME
41 #ifndef UMARIM_BARO_SENS
42 #define UMARIM_BARO_SENS 0.0274181
43 #endif
44 
45 /* Counter to init ads1114 at startup */
46 #define BARO_STARTUP_COUNTER 200
48 
49 void baro_init( void ) {
50  ads1114_init();
51 #ifdef BARO_LED
52  LED_OFF(BARO_LED);
53 #endif
55 }
56 
57 void baro_periodic( void ) {
58 
59  // Run some loops to get correct readings from the adc
60  if (startup_cnt > 0) {
61  --startup_cnt;
62 #ifdef BARO_LED
63  LED_TOGGLE(BARO_LED);
64  if (startup_cnt == 0) {
65  LED_ON(BARO_LED);
66  }
67 #endif
68  }
69  // Read the ADC
71 }
72 
73 void umarim_baro_event(void) {
74  Ads1114Event();
75  if (BARO_ABS_ADS.data_available) {
76  if (startup_cnt == 0) {
78  AbiSendMsgBARO_ABS(BARO_BOARD_SENDER_ID, &pressure);
79  }
80  BARO_ABS_ADS.data_available = FALSE;
81  }
82 }
83 
unsigned short uint16_t
Definition: types.h:16
uint16_t startup_cnt
Definition: baro_board.c:64
Common barometric sensor implementation.
#define BARO_STARTUP_COUNTER
Definition: baro_board.c:46
Main include for ABI (AirBorneInterface).
#define LED_ON(i)
Definition: led_hw.h:28
void baro_init(void)
Definition: baro_board.c:68
int32_t pressure
pressure in Pascal
Definition: bmp085.h:73
#define BARO_ABS_ADS
Definition: baro_board.c:37
#define UMARIM_BARO_SENS
Definition: baro_board.c:42
void ads1114_read(struct ads1114_periph *p)
Definition: ads1114.c:62
#define FALSE
Definition: imu_chimu.h:141
void baro_periodic(void)
Definition: baro_board.c:76
void ads1114_init(void)
Definition: ads1114.c:37
#define Ads1114GetValue(_p)
Definition: ads1114.h:165
#define BARO_BOARD_SENDER_ID
default onboard baro
#define LED_TOGGLE(i)
Definition: led_hw.h:30
void umarim_baro_event(void)
Definition: baro_board.c:73
#define LED_OFF(i)
Definition: led_hw.h:29
arch independent LED (Light Emitting Diodes) API
#define Ads1114Event()
Definition: ads1114.h:158