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| 1 | /*#######################################################################################*/ |
1 | /*#######################################################################################*/ |
| 2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
| 3 | /*#######################################################################################*/ |
3 | /*#######################################################################################*/ |
| 4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 5 | // + Copyright (c) 2010 Ingo Busker, Holger Buss |
5 | // + Copyright (c) 2010 Ingo Busker, Holger Buss |
| 6 | // + Nur für den privaten Gebrauch / NON-COMMERCIAL USE ONLY |
6 | // + Nur für den privaten Gebrauch / NON-COMMERCIAL USE ONLY |
| 7 | // + FOR NON COMMERCIAL USE ONLY |
7 | // + FOR NON COMMERCIAL USE ONLY |
| 8 | // + www.MikroKopter.com |
8 | // + www.MikroKopter.com |
| 9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
| 11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
| 12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
| 13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
| 14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
| 15 | // + Verkauf von Luftbildaufnahmen, usw. |
15 | // + Verkauf von Luftbildaufnahmen, usw. |
| 16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
| 18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
| 19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
| 21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
| 22 | // + eindeutig als Ursprung verlinkt werden |
22 | // + eindeutig als Ursprung verlinkt werden |
| 23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
| 25 | // + Benutzung auf eigene Gefahr |
25 | // + Benutzung auf eigene Gefahr |
| 26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
| 27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 28 | // + Die Portierung oder Nutzung der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
28 | // + Die Portierung oder Nutzung der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
| 29 | // + mit unserer Zustimmung zulässig |
29 | // + mit unserer Zustimmung zulässig |
| 30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
| 32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
| 34 | // + this list of conditions and the following disclaimer. |
34 | // + this list of conditions and the following disclaimer. |
| 35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
| 36 | // + from this software without specific prior written permission. |
36 | // + from this software without specific prior written permission. |
| 37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
| 38 | // + for non-commercial use (directly or indirectly) |
38 | // + for non-commercial use (directly or indirectly) |
| 39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
| 40 | // + with our written permission |
40 | // + with our written permission |
| 41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
| 42 | // + clearly linked as origin |
42 | // + clearly linked as origin |
| 43 | // + * porting the sources to other systems or using the software on other systems (except hardware from www.mikrokopter.de) is not allowed |
43 | // + * porting the sources to other systems or using the software on other systems (except hardware from www.mikrokopter.de) is not allowed |
| 44 | // |
44 | // |
| 45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 55 | // + POSSIBILITY OF SUCH DAMAGE. |
55 | // + POSSIBILITY OF SUCH DAMAGE. |
| 56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 57 | #include <math.h> |
57 | #include <math.h> |
| 58 | #include <stdio.h> |
58 | #include <stdio.h> |
| 59 | #include <string.h> |
59 | #include <string.h> |
| 60 | #include "91x_lib.h" |
60 | #include "91x_lib.h" |
| 61 | #include "ncmag.h" |
61 | #include "ncmag.h" |
| 62 | #include "i2c.h" |
62 | #include "i2c.h" |
| 63 | #include "timer1.h" |
63 | #include "timer1.h" |
| 64 | #include "led.h" |
64 | #include "led.h" |
| 65 | #include "uart1.h" |
65 | #include "uart1.h" |
| 66 | #include "eeprom.h" |
66 | #include "eeprom.h" |
| 67 | #include "mymath.h" |
67 | #include "mymath.h" |
| 68 | #include "main.h" |
68 | #include "main.h" |
| 69 | 69 | ||
| 70 | u8 NCMAG_Present = 0; |
70 | u8 NCMAG_Present = 0; |
| 71 | u8 NCMAG_IsCalibrated = 0; |
71 | u8 NCMAG_IsCalibrated = 0; |
| 72 | 72 | ||
| 73 | #define MAG_TYPE_NONE 0 |
73 | #define MAG_TYPE_NONE 0 |
| 74 | #define MAG_TYPE_HMC5843 1 |
74 | #define MAG_TYPE_HMC5843 1 |
| 75 | #define MAG_TYPE_LSM303DLH 2 |
75 | #define MAG_TYPE_LSM303DLH 2 |
| 76 | u8 NCMAG_MagType = MAG_TYPE_NONE; |
76 | u8 NCMAG_MagType = MAG_TYPE_NONE; |
| 77 | 77 | ||
| 78 | #define CALIBRATION_VERSION 1 |
78 | #define CALIBRATION_VERSION 1 |
| 79 | #define EEPROM_ADR_MAG_CALIBRATION 50 |
79 | #define EEPROM_ADR_MAG_CALIBRATION 50 |
| 80 | 80 | ||
| 81 | #define NCMAG_MIN_RAWVALUE -2047 |
81 | #define NCMAG_MIN_RAWVALUE -2047 |
| 82 | #define NCMAG_MAX_RAWVALUE 2047 |
82 | #define NCMAG_MAX_RAWVALUE 2047 |
| 83 | #define NCMAG_INVALID_DATA -4096 |
83 | #define NCMAG_INVALID_DATA -4096 |
| 84 | 84 | ||
| 85 | typedef struct |
85 | typedef struct |
| 86 | { |
86 | { |
| 87 | s16 Range; |
87 | s16 Range; |
| 88 | s16 Offset; |
88 | s16 Offset; |
| 89 | } __attribute__((packed)) Scaling_t; |
89 | } __attribute__((packed)) Scaling_t; |
| 90 | 90 | ||
| 91 | typedef struct |
91 | typedef struct |
| 92 | { |
92 | { |
| 93 | Scaling_t MagX; |
93 | Scaling_t MagX; |
| 94 | Scaling_t MagY; |
94 | Scaling_t MagY; |
| 95 | Scaling_t MagZ; |
95 | Scaling_t MagZ; |
| 96 | u8 Version; |
96 | u8 Version; |
| 97 | u8 crc; |
97 | u8 crc; |
| 98 | } __attribute__((packed)) Calibration_t; |
98 | } __attribute__((packed)) Calibration_t; |
| 99 | 99 | ||
| 100 | Calibration_t Calibration; // calibration data in RAM |
100 | Calibration_t Calibration; // calibration data in RAM |
| 101 | 101 | ||
| 102 | // i2c MAG interface |
102 | // i2c MAG interface |
| 103 | #define MAG_SLAVE_ADDRESS 0x3C // i2C slave address mag. sensor registers |
103 | #define MAG_SLAVE_ADDRESS 0x3C // i2C slave address mag. sensor registers |
| 104 | 104 | ||
| 105 | // register mapping |
105 | // register mapping |
| 106 | #define REG_MAG_CRA 0x00 |
106 | #define REG_MAG_CRA 0x00 |
| 107 | #define REG_MAG_CRB 0x01 |
107 | #define REG_MAG_CRB 0x01 |
| 108 | #define REG_MAG_MODE 0x02 |
108 | #define REG_MAG_MODE 0x02 |
| 109 | #define REG_MAG_DATAX_MSB 0x03 |
109 | #define REG_MAG_DATAX_MSB 0x03 |
| 110 | #define REG_MAG_DATAX_LSB 0x04 |
110 | #define REG_MAG_DATAX_LSB 0x04 |
| 111 | #define REG_MAG_DATAY_MSB 0x05 |
111 | #define REG_MAG_DATAY_MSB 0x05 |
| 112 | #define REG_MAG_DATAY_LSB 0x06 |
112 | #define REG_MAG_DATAY_LSB 0x06 |
| 113 | #define REG_MAG_DATAZ_MSB 0x07 |
113 | #define REG_MAG_DATAZ_MSB 0x07 |
| 114 | #define REG_MAG_DATAZ_LSB 0x08 |
114 | #define REG_MAG_DATAZ_LSB 0x08 |
| 115 | #define REG_MAG_STATUS 0x09 |
115 | #define REG_MAG_STATUS 0x09 |
| 116 | 116 | ||
| 117 | #define REG_MAG_IDA 0x0A |
117 | #define REG_MAG_IDA 0x0A |
| 118 | #define REG_MAG_IDB 0x0B |
118 | #define REG_MAG_IDB 0x0B |
| 119 | #define REG_MAG_IDC 0x0C |
119 | #define REG_MAG_IDC 0x0C |
| 120 | #define REG_MAG_IDF 0x0F |
120 | #define REG_MAG_IDF 0x0F |
| 121 | 121 | ||
| 122 | // bit mask for configuration mode |
122 | // bit mask for configuration mode |
| 123 | #define CRA_MODE_MASK 0x03 |
123 | #define CRA_MODE_MASK 0x03 |
| 124 | #define CRA_MODE_NORMAL 0x00 //default |
124 | #define CRA_MODE_NORMAL 0x00 //default |
| 125 | #define CRA_MODE_POSBIAS 0x01 |
125 | #define CRA_MODE_POSBIAS 0x01 |
| 126 | #define CRA_MODE_NEGBIAS 0x02 |
126 | #define CRA_MODE_NEGBIAS 0x02 |
| 127 | #define CRA_MODE_SELFTEST 0x03 |
127 | #define CRA_MODE_SELFTEST 0x03 |
| 128 | 128 | ||
| 129 | // bit mask for measurement mode |
129 | // bit mask for measurement mode |
| 130 | #define MODE_MASK 0xFF |
130 | #define MODE_MASK 0xFF |
| 131 | #define MODE_CONTINUOUS 0x00 |
131 | #define MODE_CONTINUOUS 0x00 |
| 132 | #define MODE_SINGLE 0x01 // default |
132 | #define MODE_SINGLE 0x01 // default |
| 133 | #define MODE_IDLE 0x02 |
133 | #define MODE_IDLE 0x02 |
| 134 | #define MODE_SLEEP 0x03 |
134 | #define MODE_SLEEP 0x03 |
| 135 | 135 | ||
| 136 | // bit mask for rate |
136 | // bit mask for rate |
| 137 | #define CRA_RATE_MASK 0x1C |
137 | #define CRA_RATE_MASK 0x1C |
| 138 | 138 | ||
| 139 | // bit mask for gain |
139 | // bit mask for gain |
| 140 | #define CRB_GAIN_MASK 0xE0 |
140 | #define CRB_GAIN_MASK 0xE0 |
| 141 | 141 | ||
| 142 | // ids |
142 | // ids |
| 143 | #define MAG_IDA 0x48 |
143 | #define MAG_IDA 0x48 |
| 144 | #define MAG_IDB 0x34 |
144 | #define MAG_IDB 0x34 |
| 145 | #define MAG_IDC 0x33 |
145 | #define MAG_IDC 0x33 |
| 146 | 146 | ||
| 147 | // the special HMC5843 interface |
147 | // the special HMC5843 interface |
| 148 | // bit mask for rate |
148 | // bit mask for rate |
| 149 | #define HMC5843_CRA_RATE_0_5HZ 0x00 |
149 | #define HMC5843_CRA_RATE_0_5HZ 0x00 |
| 150 | #define HMC5843_CRA_RATE_1HZ 0x04 |
150 | #define HMC5843_CRA_RATE_1HZ 0x04 |
| 151 | #define HMC5843_CRA_RATE_2HZ 0x08 |
151 | #define HMC5843_CRA_RATE_2HZ 0x08 |
| 152 | #define HMC5843_CRA_RATE_5HZ 0x0C |
152 | #define HMC5843_CRA_RATE_5HZ 0x0C |
| 153 | #define HMC5843_CRA_RATE_10HZ 0x10 //default |
153 | #define HMC5843_CRA_RATE_10HZ 0x10 //default |
| 154 | #define HMC5843_CRA_RATE_20HZ 0x14 |
154 | #define HMC5843_CRA_RATE_20HZ 0x14 |
| 155 | #define HMC5843_CRA_RATE_50HZ 0x18 |
155 | #define HMC5843_CRA_RATE_50HZ 0x18 |
| 156 | // bit mask for gain |
156 | // bit mask for gain |
| 157 | #define HMC5843_CRB_GAIN_07GA 0x00 |
157 | #define HMC5843_CRB_GAIN_07GA 0x00 |
| 158 | #define HMC5843_CRB_GAIN_10GA 0x20 //default |
158 | #define HMC5843_CRB_GAIN_10GA 0x20 //default |
| 159 | #define HMC5843_CRB_GAIN_15GA 0x40 |
159 | #define HMC5843_CRB_GAIN_15GA 0x40 |
| 160 | #define HMC5843_CRB_GAIN_20GA 0x60 |
160 | #define HMC5843_CRB_GAIN_20GA 0x60 |
| 161 | #define HMC5843_CRB_GAIN_32GA 0x80 |
161 | #define HMC5843_CRB_GAIN_32GA 0x80 |
| 162 | #define HMC5843_CRB_GAIN_38GA 0xA0 |
162 | #define HMC5843_CRB_GAIN_38GA 0xA0 |
| 163 | #define HMC5843_CRB_GAIN_45GA 0xC0 |
163 | #define HMC5843_CRB_GAIN_45GA 0xC0 |
| 164 | #define HMC5843_CRB_GAIN_65GA 0xE0 |
164 | #define HMC5843_CRB_GAIN_65GA 0xE0 |
| 165 | // self test value |
165 | // self test value |
| 166 | #define HMC5843_TEST_XSCALE 715 |
166 | #define HMC5843_TEST_XSCALE 715 |
| 167 | #define HMC5843_TEST_YSCALE 715 |
167 | #define HMC5843_TEST_YSCALE 715 |
| 168 | #define HMC5843_TEST_ZSCALE 715 |
168 | #define HMC5843_TEST_ZSCALE 715 |
| 169 | 169 | ||
| 170 | 170 | ||
| 171 | // the special LSM302DLH interface |
171 | // the special LSM302DLH interface |
| 172 | // bit mask for rate |
172 | // bit mask for rate |
| 173 | #define LSM303DLH_CRA_RATE_0_75HZ 0x00 |
173 | #define LSM303DLH_CRA_RATE_0_75HZ 0x00 |
| 174 | #define LSM303DLH_CRA_RATE_1_5HZ 0x04 |
174 | #define LSM303DLH_CRA_RATE_1_5HZ 0x04 |
| 175 | #define LSM303DLH_CRA_RATE_3_0HZ 0x08 |
175 | #define LSM303DLH_CRA_RATE_3_0HZ 0x08 |
| 176 | #define LSM303DLH_CRA_RATE_7_5HZ 0x0C |
176 | #define LSM303DLH_CRA_RATE_7_5HZ 0x0C |
| 177 | #define LSM303DLH_CRA_RATE_15HZ 0x10 //default |
177 | #define LSM303DLH_CRA_RATE_15HZ 0x10 //default |
| 178 | #define LSM303DLH_CRA_RATE_30HZ 0x14 |
178 | #define LSM303DLH_CRA_RATE_30HZ 0x14 |
| 179 | #define LSM303DLH_CRA_RATE_75HZ 0x18 |
179 | #define LSM303DLH_CRA_RATE_75HZ 0x18 |
| 180 | // bit mask for gain |
180 | // bit mask for gain |
| 181 | #define LSM303DLH_CRB_GAIN_XXGA 0x00 |
181 | #define LSM303DLH_CRB_GAIN_XXGA 0x00 |
| 182 | #define LSM303DLH_CRB_GAIN_13GA 0x20 //default |
182 | #define LSM303DLH_CRB_GAIN_13GA 0x20 //default |
| 183 | #define LSM303DLH_CRB_GAIN_19GA 0x40 |
183 | #define LSM303DLH_CRB_GAIN_19GA 0x40 |
| 184 | #define LSM303DLH_CRB_GAIN_25GA 0x60 |
184 | #define LSM303DLH_CRB_GAIN_25GA 0x60 |
| 185 | #define LSM303DLH_CRB_GAIN_40GA 0x80 |
185 | #define LSM303DLH_CRB_GAIN_40GA 0x80 |
| 186 | #define LSM303DLH_CRB_GAIN_47GA 0xA0 |
186 | #define LSM303DLH_CRB_GAIN_47GA 0xA0 |
| 187 | #define LSM303DLH_CRB_GAIN_56GA 0xC0 |
187 | #define LSM303DLH_CRB_GAIN_56GA 0xC0 |
| 188 | #define LSM303DLH_CRB_GAIN_81GA 0xE0 |
188 | #define LSM303DLH_CRB_GAIN_81GA 0xE0 |
| 189 | // self test value |
189 | // self test value |
| 190 | #define LSM303DLH_TEST_XSCALE 655 |
190 | #define LSM303DLH_TEST_XSCALE 655 |
| 191 | #define LSM303DLH_TEST_YSCALE 655 |
191 | #define LSM303DLH_TEST_YSCALE 655 |
| 192 | #define LSM303DLH_TEST_ZSCALE 630 |
192 | #define LSM303DLH_TEST_ZSCALE 630 |
| 193 | 193 | ||
| 194 | // the i2c ACC interface |
194 | // the i2c ACC interface |
| 195 | #define ACC_SLAVE_ADDRESS 0x30 // i2c slave for acc. sensor registers |
195 | #define ACC_SLAVE_ADDRESS 0x30 // i2c slave for acc. sensor registers |
| 196 | // register mapping |
196 | // register mapping |
| 197 | #define REG_ACC_CTRL1 0x20 |
197 | #define REG_ACC_CTRL1 0x20 |
| 198 | #define REG_ACC_CTRL2 0x21 |
198 | #define REG_ACC_CTRL2 0x21 |
| 199 | #define REG_ACC_CTRL3 0x22 |
199 | #define REG_ACC_CTRL3 0x22 |
| 200 | #define REG_ACC_CTRL4 0x23 |
200 | #define REG_ACC_CTRL4 0x23 |
| 201 | #define REG_ACC_CTRL5 0x24 |
201 | #define REG_ACC_CTRL5 0x24 |
| 202 | #define REG_ACC_HP_FILTER_RESET 0x25 |
202 | #define REG_ACC_HP_FILTER_RESET 0x25 |
| 203 | #define REG_ACC_REFERENCE 0x26 |
203 | #define REG_ACC_REFERENCE 0x26 |
| 204 | #define REG_ACC_STATUS 0x27 |
204 | #define REG_ACC_STATUS 0x27 |
| 205 | #define REG_ACC_X_LSB 0x28 |
205 | #define REG_ACC_X_LSB 0x28 |
| 206 | #define REG_ACC_X_MSB 0x29 |
206 | #define REG_ACC_X_MSB 0x29 |
| 207 | #define REG_ACC_Y_LSB 0x2A |
207 | #define REG_ACC_Y_LSB 0x2A |
| 208 | #define REG_ACC_Y_MSB 0x2B |
208 | #define REG_ACC_Y_MSB 0x2B |
| 209 | #define REG_ACC_Z_LSB 0x2C |
209 | #define REG_ACC_Z_LSB 0x2C |
| 210 | #define REG_ACC_Z_MSB 0x2D |
210 | #define REG_ACC_Z_MSB 0x2D |
| 211 | 211 | ||
| 212 | 212 | ||
| 213 | 213 | ||
| 214 | typedef struct |
214 | typedef struct |
| 215 | { |
215 | { |
| 216 | u8 A; |
216 | u8 A; |
| 217 | u8 B; |
217 | u8 B; |
| 218 | u8 C; |
218 | u8 C; |
| 219 | } __attribute__((packed)) Identification_t; |
219 | } __attribute__((packed)) Identification_t; |
| 220 | volatile Identification_t NCMAG_Identification; |
220 | volatile Identification_t NCMAG_Identification; |
| 221 | 221 | ||
| 222 | typedef struct |
222 | typedef struct |
| 223 | { |
223 | { |
| 224 | u8 Sub; |
224 | u8 Sub; |
| 225 | } __attribute__((packed)) Identification2_t; |
225 | } __attribute__((packed)) Identification2_t; |
| 226 | volatile Identification2_t NCMAG_Identification2; |
226 | volatile Identification2_t NCMAG_Identification2; |
| 227 | 227 | ||
| 228 | typedef struct |
228 | typedef struct |
| 229 | { |
229 | { |
| 230 | u8 cra; |
230 | u8 cra; |
| 231 | u8 crb; |
231 | u8 crb; |
| 232 | u8 mode; |
232 | u8 mode; |
| 233 | } __attribute__((packed)) MagConfig_t; |
233 | } __attribute__((packed)) MagConfig_t; |
| 234 | 234 | ||
| 235 | volatile MagConfig_t MagConfig; |
235 | volatile MagConfig_t MagConfig; |
| 236 | 236 | ||
| 237 | typedef struct |
237 | typedef struct |
| 238 | { |
238 | { |
| 239 | u8 ctrl_1; |
239 | u8 ctrl_1; |
| 240 | u8 ctrl_2; |
240 | u8 ctrl_2; |
| 241 | u8 ctrl_3; |
241 | u8 ctrl_3; |
| 242 | u8 ctrl_4; |
242 | u8 ctrl_4; |
| 243 | u8 ctrl_5; |
243 | u8 ctrl_5; |
| 244 | } __attribute__((packed)) AccConfig_t; |
244 | } __attribute__((packed)) AccConfig_t; |
| 245 | 245 | ||
| 246 | volatile AccConfig_t AccConfig; |
246 | volatile AccConfig_t AccConfig; |
| 247 | 247 | ||
| 248 | volatile s16vec_t AccRawVector; |
248 | volatile s16vec_t AccRawVector; |
| 249 | volatile s16vec_t MagRawVector; |
249 | volatile s16vec_t MagRawVector; |
| 250 | 250 | ||
| 251 | 251 | ||
| 252 | u8 NCMag_CalibrationWrite(void) |
252 | u8 NCMag_CalibrationWrite(void) |
| 253 | { |
253 | { |
| 254 | u8 i, crc = 0xAA; |
254 | u8 i, crc = 0xAA; |
| 255 | EEPROM_Result_t eres; |
255 | EEPROM_Result_t eres; |
| 256 | u8 *pBuff = (u8*)&Calibration; |
256 | u8 *pBuff = (u8*)&Calibration; |
| 257 | 257 | ||
| 258 | Calibration.Version = CALIBRATION_VERSION; |
258 | Calibration.Version = CALIBRATION_VERSION; |
| 259 | for(i = 0; i<(sizeof(Calibration)-1); i++) |
259 | for(i = 0; i<(sizeof(Calibration)-1); i++) |
| 260 | { |
260 | { |
| 261 | crc += pBuff[i]; |
261 | crc += pBuff[i]; |
| 262 | } |
262 | } |
| 263 | Calibration.crc = ~crc; |
263 | Calibration.crc = ~crc; |
| 264 | eres = EEPROM_WriteBlock(EEPROM_ADR_MAG_CALIBRATION, pBuff, sizeof(Calibration)); |
264 | eres = EEPROM_WriteBlock(EEPROM_ADR_MAG_CALIBRATION, pBuff, sizeof(Calibration)); |
| 265 | if(EEPROM_SUCCESS == eres) i = 1; |
265 | if(EEPROM_SUCCESS == eres) i = 1; |
| 266 | else i = 0; |
266 | else i = 0; |
| 267 | return(i); |
267 | return(i); |
| 268 | } |
268 | } |
| 269 | 269 | ||
| 270 | u8 NCMag_CalibrationRead(void) |
270 | u8 NCMag_CalibrationRead(void) |
| 271 | { |
271 | { |
| 272 | u8 i, crc = 0xAA; |
272 | u8 i, crc = 0xAA; |
| 273 | u8 *pBuff = (u8*)&Calibration; |
273 | u8 *pBuff = (u8*)&Calibration; |
| 274 | 274 | ||
| 275 | if(EEPROM_SUCCESS == EEPROM_ReadBlock(EEPROM_ADR_MAG_CALIBRATION, pBuff, sizeof(Calibration))) |
275 | if(EEPROM_SUCCESS == EEPROM_ReadBlock(EEPROM_ADR_MAG_CALIBRATION, pBuff, sizeof(Calibration))) |
| 276 | { |
276 | { |
| 277 | for(i = 0; i<(sizeof(Calibration)-1); i++) |
277 | for(i = 0; i<(sizeof(Calibration)-1); i++) |
| 278 | { |
278 | { |
| 279 | crc += pBuff[i]; |
279 | crc += pBuff[i]; |
| 280 | } |
280 | } |
| 281 | crc = ~crc; |
281 | crc = ~crc; |
| 282 | if(Calibration.crc != crc) return(0); // crc mismatch |
282 | if(Calibration.crc != crc) return(0); // crc mismatch |
| 283 | if(Calibration.Version == CALIBRATION_VERSION) return(1); |
283 | if(Calibration.Version == CALIBRATION_VERSION) return(1); |
| 284 | } |
284 | } |
| 285 | return(0); |
285 | return(0); |
| 286 | } |
286 | } |
| 287 | 287 | ||
| 288 | 288 | ||
| 289 | void NCMAG_Calibrate(void) |
289 | void NCMAG_Calibrate(void) |
| 290 | { |
290 | { |
| - | 291 | u8 msg[64]; |
|
| 291 | static s16 Xmin = 0, Xmax = 0, Ymin = 0, Ymax = 0, Zmin = 0, Zmax = 0; |
292 | static s16 Xmin = 0, Xmax = 0, Ymin = 0, Ymax = 0, Zmin = 0, Zmax = 0; |
| 292 | static s16 X = 0, Y = 0, Z = 0; |
293 | static s16 X = 0, Y = 0, Z = 0; |
| 293 | static u8 OldCalState = 0; |
294 | static u8 OldCalState = 0; |
| 294 | 295 | ||
| 295 | X = (4*X + MagRawVector.X + 3)/5; |
296 | X = (4*X + MagRawVector.X + 3)/5; |
| 296 | Y = (4*Y + MagRawVector.Y + 3)/5; |
297 | Y = (4*Y + MagRawVector.Y + 3)/5; |
| 297 | Z = (4*Z + MagRawVector.Z + 3)/5; |
298 | Z = (4*Z + MagRawVector.Z + 3)/5; |
| 298 | 299 | ||
| 299 | switch(Compass_CalState) |
300 | switch(Compass_CalState) |
| 300 | { |
301 | { |
| 301 | case 1: |
302 | case 1: |
| 302 | // 1st step of calibration |
303 | // 1st step of calibration |
| 303 | // initialize ranges |
304 | // initialize ranges |
| 304 | // used to change the orientation of the NC in the horizontal plane |
305 | // used to change the orientation of the NC in the horizontal plane |
| 305 | Xmin = 10000; |
306 | Xmin = 10000; |
| 306 | Xmax = -10000; |
307 | Xmax = -10000; |
| 307 | Ymin = 10000; |
308 | Ymin = 10000; |
| 308 | Ymax = -10000; |
309 | Ymax = -10000; |
| 309 | Zmin = 10000; |
310 | Zmin = 10000; |
| 310 | Zmax = -10000; |
311 | Zmax = -10000; |
| 311 | break; |
312 | break; |
| 312 | 313 | ||
| 313 | case 2: // 2nd step of calibration |
314 | case 2: // 2nd step of calibration |
| 314 | // find Min and Max of the X- and Y-Sensors during rotation in the horizontal plane |
315 | // find Min and Max of the X- and Y-Sensors during rotation in the horizontal plane |
| 315 | if(X < Xmin) { Xmin = X; BeepTime = 20;} |
316 | if(X < Xmin) { Xmin = X; BeepTime = 20;} |
| 316 | else if(X > Xmax) { Xmax = X; BeepTime = 20;} |
317 | else if(X > Xmax) { Xmax = X; BeepTime = 20;} |
| 317 | if(Y < Ymin) { Ymin = Y; BeepTime = 60;} |
318 | if(Y < Ymin) { Ymin = Y; BeepTime = 60;} |
| 318 | else if(Y > Ymax) { Ymax = Y; BeepTime = 60;} |
319 | else if(Y > Ymax) { Ymax = Y; BeepTime = 60;} |
| 319 | break; |
320 | break; |
| 320 | 321 | ||
| 321 | case 3: // 3rd step of calibration |
322 | case 3: // 3rd step of calibration |
| 322 | // used to change the orientation of the MK3MAG vertical to the horizontal plane |
323 | // used to change the orientation of the MK3MAG vertical to the horizontal plane |
| 323 | break; |
324 | break; |
| 324 | 325 | ||
| 325 | case 4: |
326 | case 4: |
| 326 | // find Min and Max of the Z-Sensor |
327 | // find Min and Max of the Z-Sensor |
| 327 | if(Z < Zmin) { Zmin = Z; BeepTime = 80;} |
328 | if(Z < Zmin) { Zmin = Z; BeepTime = 80;} |
| 328 | else if(Z > Zmax) { Zmax = Z; BeepTime = 80;} |
329 | else if(Z > Zmax) { Zmax = Z; BeepTime = 80;} |
| 329 | break; |
330 | break; |
| 330 | 331 | ||
| 331 | case 5: |
332 | case 5: |
| 332 | // Save values |
333 | // Save values |
| 333 | if(Compass_CalState != OldCalState) // avoid continously writing of eeprom! |
334 | if(Compass_CalState != OldCalState) // avoid continously writing of eeprom! |
| 334 | { |
335 | { |
| 335 | #define MIN_CALIBRATION 256 |
336 | #define MIN_CALIBRATION 256 |
| 336 | Calibration.MagX.Range = Xmax - Xmin; |
337 | Calibration.MagX.Range = Xmax - Xmin; |
| 337 | Calibration.MagX.Offset = (Xmin + Xmax) / 2; |
338 | Calibration.MagX.Offset = (Xmin + Xmax) / 2; |
| 338 | Calibration.MagY.Range = Ymax - Ymin; |
339 | Calibration.MagY.Range = Ymax - Ymin; |
| 339 | Calibration.MagY.Offset = (Ymin + Ymax) / 2; |
340 | Calibration.MagY.Offset = (Ymin + Ymax) / 2; |
| 340 | Calibration.MagZ.Range = Zmax - Zmin; |
341 | Calibration.MagZ.Range = Zmax - Zmin; |
| 341 | Calibration.MagZ.Offset = (Zmin + Zmax) / 2; |
342 | Calibration.MagZ.Offset = (Zmin + Zmax) / 2; |
| 342 | if((Calibration.MagX.Range > MIN_CALIBRATION) && (Calibration.MagY.Range > MIN_CALIBRATION) && (Calibration.MagZ.Range > MIN_CALIBRATION)) |
343 | if((Calibration.MagX.Range > MIN_CALIBRATION) && (Calibration.MagY.Range > MIN_CALIBRATION) && (Calibration.MagZ.Range > MIN_CALIBRATION)) |
| 343 | { |
344 | { |
| 344 | NCMAG_IsCalibrated = NCMag_CalibrationWrite(); |
345 | NCMAG_IsCalibrated = NCMag_CalibrationWrite(); |
| 345 | BeepTime = 2500; |
346 | BeepTime = 2500; |
| 346 | UART1_PutString("\r\n Calibration okay"); |
347 | UART1_PutString("\r\n Calibration okay\n\r"); |
| 347 | } |
348 | } |
| 348 | else |
349 | else |
| 349 | { |
350 | { |
| - | 351 | UART1_PutString("\r\n Calibration FAILED - Values too low"); |
|
| - | 352 | if(Calibration.MagX.Range < MIN_CALIBRATION) UART1_PutString("X! "); |
|
| - | 353 | if(Calibration.MagY.Range < MIN_CALIBRATION) UART1_PutString("y! "); |
|
| - | 354 | if(Calibration.MagZ.Range < MIN_CALIBRATION) UART1_PutString("Z! "); |
|
| - | 355 | UART1_PutString("\r\n"); |
|
| 350 | // restore old calibration data from eeprom |
356 | // restore old calibration data from eeprom |
| 351 | NCMAG_IsCalibrated = NCMag_CalibrationRead(); |
357 | NCMAG_IsCalibrated = NCMag_CalibrationRead(); |
| 352 | UART1_PutString("\r\n Calibration FAILED - Values too low: "); |
- | |
| 353 | if(Calibration.MagX.Range < MIN_CALIBRATION) UART1_PutString("X! "); |
- | |
| 354 | if(Calibration.MagY.Range < MIN_CALIBRATION) UART1_PutString("Y! "); |
- | |
| 355 | if(Calibration.MagZ.Range < MIN_CALIBRATION) UART1_PutString("Z! "); |
- | |
| 356 | } |
358 | } |
| - | 359 | sprintf(msg, "X: (%i - %i = %i)\r\n",Xmax,Xmin,Xmax - Xmin); |
|
| - | 360 | UART1_PutString(msg); |
|
| - | 361 | sprintf(msg, "Y: (%i - %i = %i)\r\n",Ymax,Ymin,Ymax - Ymin); |
|
| - | 362 | UART1_PutString(msg); |
|
| - | 363 | sprintf(msg, "Z: (%i - %i = %i)\r\n",Zmax,Zmin,Zmax - Zmin); |
|
| - | 364 | UART1_PutString(msg); |
|
| 357 | } |
365 | } |
| 358 | break; |
366 | break; |
| 359 | 367 | ||
| 360 | default: |
368 | default: |
| 361 | break; |
369 | break; |
| 362 | } |
370 | } |
| 363 | OldCalState = Compass_CalState; |
371 | OldCalState = Compass_CalState; |
| 364 | } |
372 | } |
| 365 | 373 | ||
| 366 | // ---------- call back handlers ----------------------------------------- |
374 | // ---------- call back handlers ----------------------------------------- |
| 367 | 375 | ||
| 368 | // rx data handler for id info request |
376 | // rx data handler for id info request |
| 369 | void NCMAG_UpdateIdentification(u8* pRxBuffer, u8 RxBufferSize) |
377 | void NCMAG_UpdateIdentification(u8* pRxBuffer, u8 RxBufferSize) |
| 370 | { // if number of bytes are matching |
378 | { // if number of bytes are matching |
| 371 | if(RxBufferSize == sizeof(NCMAG_Identification) ) |
379 | if(RxBufferSize == sizeof(NCMAG_Identification) ) |
| 372 | { |
380 | { |
| 373 | memcpy((u8 *)&NCMAG_Identification, pRxBuffer, sizeof(NCMAG_Identification)); |
381 | memcpy((u8 *)&NCMAG_Identification, pRxBuffer, sizeof(NCMAG_Identification)); |
| 374 | } |
382 | } |
| 375 | } |
383 | } |
| 376 | 384 | ||
| 377 | void NCMAG_UpdateIdentification_Sub(u8* pRxBuffer, u8 RxBufferSize) |
385 | void NCMAG_UpdateIdentification_Sub(u8* pRxBuffer, u8 RxBufferSize) |
| 378 | { // if number of bytes are matching |
386 | { // if number of bytes are matching |
| 379 | if(RxBufferSize == sizeof(NCMAG_Identification2)) |
387 | if(RxBufferSize == sizeof(NCMAG_Identification2)) |
| 380 | { |
388 | { |
| 381 | memcpy((u8 *)&NCMAG_Identification2, pRxBuffer, sizeof(NCMAG_Identification2)); |
389 | memcpy((u8 *)&NCMAG_Identification2, pRxBuffer, sizeof(NCMAG_Identification2)); |
| 382 | } |
390 | } |
| 383 | } |
391 | } |
| 384 | 392 | ||
| 385 | // rx data handler for magnetic sensor raw data |
393 | // rx data handler for magnetic sensor raw data |
| 386 | void NCMAG_UpdateMagVector(u8* pRxBuffer, u8 RxBufferSize) |
394 | void NCMAG_UpdateMagVector(u8* pRxBuffer, u8 RxBufferSize) |
| 387 | { // if number of bytes are matching |
395 | { // if number of bytes are matching |
| 388 | if(RxBufferSize == sizeof(MagRawVector) ) |
396 | if(RxBufferSize == sizeof(MagRawVector) ) |
| 389 | { // byte order from big to little endian |
397 | { // byte order from big to little endian |
| 390 | s16 raw; |
398 | s16 raw; |
| 391 | raw = pRxBuffer[0]<<8; |
399 | raw = pRxBuffer[0]<<8; |
| 392 | raw+= pRxBuffer[1]; |
400 | raw+= pRxBuffer[1]; |
| 393 | if(raw >= NCMAG_MIN_RAWVALUE && raw <= NCMAG_MAX_RAWVALUE) MagRawVector.X = raw; |
401 | if(raw >= NCMAG_MIN_RAWVALUE && raw <= NCMAG_MAX_RAWVALUE) MagRawVector.X = raw; |
| 394 | raw = pRxBuffer[2]<<8; |
402 | raw = pRxBuffer[2]<<8; |
| 395 | raw+= pRxBuffer[3]; |
403 | raw+= pRxBuffer[3]; |
| 396 | if(raw >= NCMAG_MIN_RAWVALUE && raw <= NCMAG_MAX_RAWVALUE) MagRawVector.Y = raw; |
404 | if(raw >= NCMAG_MIN_RAWVALUE && raw <= NCMAG_MAX_RAWVALUE) |
| - | 405 | { |
|
| - | 406 | if(NCMAG_Identification2.Sub == 0x3c) MagRawVector.Z = raw; // here Z and Y are exchanged |
|
| - | 407 | else MagRawVector.Y = raw; |
|
| - | 408 | } |
|
| 397 | raw = pRxBuffer[4]<<8; |
409 | raw = pRxBuffer[4]<<8; |
| 398 | raw+= pRxBuffer[5]; |
410 | raw+= pRxBuffer[5]; |
| 399 | if(raw >= NCMAG_MIN_RAWVALUE && raw <= NCMAG_MAX_RAWVALUE) MagRawVector.Z = raw; |
411 | if(raw >= NCMAG_MIN_RAWVALUE && raw <= NCMAG_MAX_RAWVALUE) |
| - | 412 | { |
|
| - | 413 | if(NCMAG_Identification2.Sub == 0x3c) MagRawVector.Y = raw; // here Z and Y are exchanged |
|
| - | 414 | else MagRawVector.Z = raw; |
|
| - | 415 | } |
|
| - | 416 | ||
| 400 | } |
417 | } |
| 401 | if(Compass_CalState || !NCMAG_IsCalibrated) |
418 | if(Compass_CalState || !NCMAG_IsCalibrated) |
| 402 | { // mark out data invalid |
419 | { // mark out data invalid |
| 403 | MagVector.X = MagRawVector.X; |
420 | MagVector.X = MagRawVector.X; |
| 404 | MagVector.Y = MagRawVector.Y; |
421 | MagVector.Y = MagRawVector.Y; |
| 405 | MagVector.Z = MagRawVector.Z; |
422 | MagVector.Z = MagRawVector.Z; |
| 406 | Compass_Heading = -1; |
423 | Compass_Heading = -1; |
| 407 | } |
424 | } |
| 408 | else |
425 | else |
| 409 | { |
426 | { |
| 410 | // update MagVector from MagRaw Vector by Scaling |
427 | // update MagVector from MagRaw Vector by Scaling |
| 411 | MagVector.X = (s16)((1024L*(s32)(MagRawVector.X - Calibration.MagX.Offset))/Calibration.MagX.Range); |
428 | MagVector.X = (s16)((1024L*(s32)(MagRawVector.X - Calibration.MagX.Offset))/Calibration.MagX.Range); |
| 412 | MagVector.Y = (s16)((1024L*(s32)(MagRawVector.Y - Calibration.MagY.Offset))/Calibration.MagY.Range); |
429 | MagVector.Y = (s16)((1024L*(s32)(MagRawVector.Y - Calibration.MagY.Offset))/Calibration.MagY.Range); |
| 413 | MagVector.Z = (s16)((1024L*(s32)(MagRawVector.Z - Calibration.MagZ.Offset))/Calibration.MagZ.Range); |
430 | MagVector.Z = (s16)((1024L*(s32)(MagRawVector.Z - Calibration.MagZ.Offset))/Calibration.MagZ.Range); |
| 414 | Compass_CalcHeading(); |
431 | Compass_CalcHeading(); |
| 415 | } |
432 | } |
| 416 | } |
433 | } |
| 417 | // rx data handler for acceleration raw data |
434 | // rx data handler for acceleration raw data |
| 418 | void NCMAG_UpdateAccVector(u8* pRxBuffer, u8 RxBufferSize) |
435 | void NCMAG_UpdateAccVector(u8* pRxBuffer, u8 RxBufferSize) |
| 419 | { // if number of byte are matching |
436 | { // if number of byte are matching |
| 420 | if(RxBufferSize == sizeof(AccRawVector) ) |
437 | if(RxBufferSize == sizeof(AccRawVector) ) |
| 421 | { |
438 | { |
| 422 | memcpy((u8*)&AccRawVector, pRxBuffer,sizeof(AccRawVector)); |
439 | memcpy((u8*)&AccRawVector, pRxBuffer,sizeof(AccRawVector)); |
| 423 | } |
440 | } |
| 424 | } |
441 | } |
| 425 | // rx data handler for reading magnetic sensor configuration |
442 | // rx data handler for reading magnetic sensor configuration |
| 426 | void NCMAG_UpdateMagConfig(u8* pRxBuffer, u8 RxBufferSize) |
443 | void NCMAG_UpdateMagConfig(u8* pRxBuffer, u8 RxBufferSize) |
| 427 | { // if number of byte are matching |
444 | { // if number of byte are matching |
| 428 | if(RxBufferSize == sizeof(MagConfig) ) |
445 | if(RxBufferSize == sizeof(MagConfig) ) |
| 429 | { |
446 | { |
| 430 | memcpy((u8*)(&MagConfig), pRxBuffer, sizeof(MagConfig)); |
447 | memcpy((u8*)(&MagConfig), pRxBuffer, sizeof(MagConfig)); |
| 431 | } |
448 | } |
| 432 | } |
449 | } |
| 433 | // rx data handler for reading acceleration sensor configuration |
450 | // rx data handler for reading acceleration sensor configuration |
| 434 | void NCMAG_UpdateAccConfig(u8* pRxBuffer, u8 RxBufferSize) |
451 | void NCMAG_UpdateAccConfig(u8* pRxBuffer, u8 RxBufferSize) |
| 435 | { // if number of byte are matching |
452 | { // if number of byte are matching |
| 436 | if(RxBufferSize == sizeof(AccConfig) ) |
453 | if(RxBufferSize == sizeof(AccConfig) ) |
| 437 | { |
454 | { |
| 438 | memcpy((u8*)&AccConfig, pRxBuffer, sizeof(AccConfig)); |
455 | memcpy((u8*)&AccConfig, pRxBuffer, sizeof(AccConfig)); |
| 439 | } |
456 | } |
| 440 | } |
457 | } |
| 441 | //---------------------------------------------------------------------- |
458 | //---------------------------------------------------------------------- |
| 442 | 459 | ||
| 443 | 460 | ||
| 444 | // --------------------------------------------------------------------- |
461 | // --------------------------------------------------------------------- |
| 445 | u8 NCMAG_SetMagConfig(void) |
462 | u8 NCMAG_SetMagConfig(void) |
| 446 | { |
463 | { |
| 447 | u8 retval = 0; |
464 | u8 retval = 0; |
| 448 | // try to catch the i2c buffer within 100 ms timeout |
465 | // try to catch the i2c buffer within 100 ms timeout |
| 449 | if(I2C_LockBuffer(100)) |
466 | if(I2C_LockBuffer(100)) |
| 450 | { |
467 | { |
| 451 | u8 TxBytes = 0; |
468 | u8 TxBytes = 0; |
| 452 | I2C_Buffer[TxBytes++] = REG_MAG_CRA; |
469 | I2C_Buffer[TxBytes++] = REG_MAG_CRA; |
| 453 | memcpy((u8*)(&I2C_Buffer[TxBytes]), (u8*)&MagConfig, sizeof(MagConfig)); |
470 | memcpy((u8*)(&I2C_Buffer[TxBytes]), (u8*)&MagConfig, sizeof(MagConfig)); |
| 454 | TxBytes += sizeof(MagConfig); |
471 | TxBytes += sizeof(MagConfig); |
| 455 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, 0, 0)) |
472 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, 0, 0)) |
| 456 | { |
473 | { |
| 457 | if(I2C_WaitForEndOfTransmission(100)) |
474 | if(I2C_WaitForEndOfTransmission(100)) |
| 458 | { |
475 | { |
| 459 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
476 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
| 460 | } |
477 | } |
| 461 | } |
478 | } |
| 462 | } |
479 | } |
| 463 | return(retval); |
480 | return(retval); |
| 464 | } |
481 | } |
| 465 | 482 | ||
| 466 | // ---------------------------------------------------------------------------------------- |
483 | // ---------------------------------------------------------------------------------------- |
| 467 | u8 NCMAG_GetMagConfig(void) |
484 | u8 NCMAG_GetMagConfig(void) |
| 468 | { |
485 | { |
| 469 | u8 retval = 0; |
486 | u8 retval = 0; |
| 470 | // try to catch the i2c buffer within 100 ms timeout |
487 | // try to catch the i2c buffer within 100 ms timeout |
| 471 | if(I2C_LockBuffer(100)) |
488 | if(I2C_LockBuffer(100)) |
| 472 | { |
489 | { |
| 473 | u8 TxBytes = 0; |
490 | u8 TxBytes = 0; |
| 474 | I2C_Buffer[TxBytes++] = REG_MAG_CRA; |
491 | I2C_Buffer[TxBytes++] = REG_MAG_CRA; |
| 475 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateMagConfig, sizeof(MagConfig))) |
492 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateMagConfig, sizeof(MagConfig))) |
| 476 | { |
493 | { |
| 477 | if(I2C_WaitForEndOfTransmission(100)) |
494 | if(I2C_WaitForEndOfTransmission(100)) |
| 478 | { |
495 | { |
| 479 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
496 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
| 480 | } |
497 | } |
| 481 | } |
498 | } |
| 482 | } |
499 | } |
| 483 | return(retval); |
500 | return(retval); |
| 484 | } |
501 | } |
| 485 | 502 | ||
| 486 | // ---------------------------------------------------------------------------------------- |
503 | // ---------------------------------------------------------------------------------------- |
| 487 | u8 NCMAG_SetAccConfig(void) |
504 | u8 NCMAG_SetAccConfig(void) |
| 488 | { |
505 | { |
| 489 | u8 retval = 0; |
506 | u8 retval = 0; |
| 490 | // try to catch the i2c buffer within 100 ms timeout |
507 | // try to catch the i2c buffer within 100 ms timeout |
| 491 | if(I2C_LockBuffer(100)) |
508 | if(I2C_LockBuffer(100)) |
| 492 | { |
509 | { |
| 493 | u8 TxBytes = 0; |
510 | u8 TxBytes = 0; |
| 494 | I2C_Buffer[TxBytes++] = REG_ACC_CTRL1; |
511 | I2C_Buffer[TxBytes++] = REG_ACC_CTRL1; |
| 495 | memcpy((u8*)(&I2C_Buffer[TxBytes]), (u8*)&AccConfig, sizeof(AccConfig)); |
512 | memcpy((u8*)(&I2C_Buffer[TxBytes]), (u8*)&AccConfig, sizeof(AccConfig)); |
| 496 | TxBytes += sizeof(AccConfig); |
513 | TxBytes += sizeof(AccConfig); |
| 497 | if(I2C_Transmission(ACC_SLAVE_ADDRESS, TxBytes, 0, 0)) |
514 | if(I2C_Transmission(ACC_SLAVE_ADDRESS, TxBytes, 0, 0)) |
| 498 | { |
515 | { |
| 499 | if(I2C_WaitForEndOfTransmission(100)) |
516 | if(I2C_WaitForEndOfTransmission(100)) |
| 500 | { |
517 | { |
| 501 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
518 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
| 502 | } |
519 | } |
| 503 | } |
520 | } |
| 504 | } |
521 | } |
| 505 | return(retval); |
522 | return(retval); |
| 506 | } |
523 | } |
| 507 | 524 | ||
| 508 | // ---------------------------------------------------------------------------------------- |
525 | // ---------------------------------------------------------------------------------------- |
| 509 | u8 NCMAG_GetAccConfig(void) |
526 | u8 NCMAG_GetAccConfig(void) |
| 510 | { |
527 | { |
| 511 | u8 retval = 0; |
528 | u8 retval = 0; |
| 512 | // try to catch the i2c buffer within 100 ms timeout |
529 | // try to catch the i2c buffer within 100 ms timeout |
| 513 | if(I2C_LockBuffer(100)) |
530 | if(I2C_LockBuffer(100)) |
| 514 | { |
531 | { |
| 515 | u8 TxBytes = 0; |
532 | u8 TxBytes = 0; |
| 516 | I2C_Buffer[TxBytes++] = REG_ACC_CTRL1; |
533 | I2C_Buffer[TxBytes++] = REG_ACC_CTRL1; |
| 517 | if(I2C_Transmission(ACC_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateAccConfig, sizeof(AccConfig))) |
534 | if(I2C_Transmission(ACC_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateAccConfig, sizeof(AccConfig))) |
| 518 | { |
535 | { |
| 519 | if(I2C_WaitForEndOfTransmission(100)) |
536 | if(I2C_WaitForEndOfTransmission(100)) |
| 520 | { |
537 | { |
| 521 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
538 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
| 522 | } |
539 | } |
| 523 | } |
540 | } |
| 524 | } |
541 | } |
| 525 | return(retval); |
542 | return(retval); |
| 526 | } |
543 | } |
| 527 | 544 | ||
| 528 | // ---------------------------------------------------------------------------------------- |
545 | // ---------------------------------------------------------------------------------------- |
| 529 | u8 NCMAG_GetIdentification(void) |
546 | u8 NCMAG_GetIdentification(void) |
| 530 | { |
547 | { |
| 531 | u8 retval = 0; |
548 | u8 retval = 0; |
| 532 | // try to catch the i2c buffer within 100 ms timeout |
549 | // try to catch the i2c buffer within 100 ms timeout |
| 533 | if(I2C_LockBuffer(100)) |
550 | if(I2C_LockBuffer(100)) |
| 534 | { |
551 | { |
| 535 | u16 TxBytes = 0; |
552 | u16 TxBytes = 0; |
| 536 | NCMAG_Identification.A = 0xFF; |
553 | NCMAG_Identification.A = 0xFF; |
| 537 | NCMAG_Identification.B = 0xFF; |
554 | NCMAG_Identification.B = 0xFF; |
| 538 | NCMAG_Identification.C = 0xFF; |
555 | NCMAG_Identification.C = 0xFF; |
| 539 | I2C_Buffer[TxBytes++] = REG_MAG_IDA; |
556 | I2C_Buffer[TxBytes++] = REG_MAG_IDA; |
| 540 | // initiate transmission |
557 | // initiate transmission |
| 541 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateIdentification, sizeof(NCMAG_Identification))) |
558 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateIdentification, sizeof(NCMAG_Identification))) |
| 542 | { |
559 | { |
| 543 | if(I2C_WaitForEndOfTransmission(100)) |
560 | if(I2C_WaitForEndOfTransmission(100)) |
| 544 | { |
561 | { |
| 545 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
562 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
| 546 | } |
563 | } |
| 547 | } |
564 | } |
| 548 | } |
565 | } |
| 549 | return(retval); |
566 | return(retval); |
| 550 | } |
567 | } |
| 551 | 568 | ||
| 552 | u8 NCMAG_GetIdentification_Sub(void) |
569 | u8 NCMAG_GetIdentification_Sub(void) |
| 553 | { |
570 | { |
| 554 | u8 retval = 0; |
571 | u8 retval = 0; |
| 555 | // try to catch the i2c buffer within 100 ms timeout |
572 | // try to catch the i2c buffer within 100 ms timeout |
| 556 | if(I2C_LockBuffer(100)) |
573 | if(I2C_LockBuffer(100)) |
| 557 | { |
574 | { |
| 558 | u16 TxBytes = 0; |
575 | u16 TxBytes = 0; |
| 559 | NCMAG_Identification2.Sub = 0xFF; |
576 | NCMAG_Identification2.Sub = 0xFF; |
| 560 | I2C_Buffer[TxBytes++] = REG_MAG_IDF; |
577 | I2C_Buffer[TxBytes++] = REG_MAG_IDF; |
| 561 | // initiate transmission |
578 | // initiate transmission |
| 562 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateIdentification_Sub, sizeof(NCMAG_Identification2))) |
579 | if(I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateIdentification_Sub, sizeof(NCMAG_Identification2))) |
| 563 | { |
580 | { |
| 564 | if(I2C_WaitForEndOfTransmission(100)) |
581 | if(I2C_WaitForEndOfTransmission(100)) |
| 565 | { |
582 | { |
| 566 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
583 | if(I2C_Error == I2C_ERROR_NONE) retval = 1; |
| 567 | } |
584 | } |
| 568 | } |
585 | } |
| 569 | } |
586 | } |
| 570 | return(retval); |
587 | return(retval); |
| 571 | } |
588 | } |
| 572 | 589 | ||
| 573 | 590 | ||
| 574 | // ---------------------------------------------------------------------------------------- |
591 | // ---------------------------------------------------------------------------------------- |
| 575 | void NCMAG_GetMagVector(void) |
592 | void NCMAG_GetMagVector(void) |
| 576 | { |
593 | { |
| 577 | // try to catch the I2C buffer within 0 ms |
594 | // try to catch the I2C buffer within 0 ms |
| 578 | if(I2C_LockBuffer(0)) |
595 | if(I2C_LockBuffer(0)) |
| 579 | { |
596 | { |
| - | 597 | // s16 tmp; |
|
| 580 | u16 TxBytes = 0; |
598 | u16 TxBytes = 0; |
| 581 | // set register pointer |
599 | // set register pointer |
| 582 | I2C_Buffer[TxBytes++] = REG_MAG_DATAX_MSB; |
600 | I2C_Buffer[TxBytes++] = REG_MAG_DATAX_MSB; |
| 583 | // initiate transmission |
601 | // initiate transmission |
| 584 | I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateMagVector, sizeof(MagVector)); |
602 | I2C_Transmission(MAG_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateMagVector, sizeof(MagVector)); |
| 585 | } |
603 | } |
| 586 | } |
604 | } |
| 587 | 605 | ||
| 588 | //---------------------------------------------------------------- |
606 | //---------------------------------------------------------------- |
| 589 | void NCMAG_GetAccVector(void) |
607 | void NCMAG_GetAccVector(void) |
| 590 | { |
608 | { |
| 591 | // try to catch the I2C buffer within 0 ms |
609 | // try to catch the I2C buffer within 0 ms |
| 592 | if(I2C_LockBuffer(0)) |
610 | if(I2C_LockBuffer(0)) |
| 593 | { |
611 | { |
| 594 | u16 TxBytes = 0; |
612 | u16 TxBytes = 0; |
| 595 | // set register pointer |
613 | // set register pointer |
| 596 | I2C_Buffer[TxBytes++] = REG_ACC_X_LSB; |
614 | I2C_Buffer[TxBytes++] = REG_ACC_X_LSB; |
| 597 | // initiate transmission |
615 | // initiate transmission |
| 598 | I2C_Transmission(ACC_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateAccVector, sizeof(AccRawVector)); |
616 | I2C_Transmission(ACC_SLAVE_ADDRESS, TxBytes, &NCMAG_UpdateAccVector, sizeof(AccRawVector)); |
| 599 | } |
617 | } |
| 600 | } |
618 | } |
| - | 619 | ||
| - | 620 | //---------------------------------------------------------------- |
|
| - | 621 | void InitNC_MagnetSensor(void) |
|
| - | 622 | { |
|
| - | 623 | s16 xscale, yscale, zscale; |
|
| - | 624 | u8 crb_gain, cra_rate; |
|
| - | 625 | u8 i = 0, retval = 1; |
|
| - | 626 | ||
| - | 627 | switch(NCMAG_MagType) |
|
| - | 628 | { |
|
| - | 629 | case MAG_TYPE_HMC5843: |
|
| - | 630 | crb_gain = HMC5843_CRB_GAIN_10GA; |
|
| - | 631 | cra_rate = HMC5843_CRA_RATE_50HZ; |
|
| - | 632 | xscale = HMC5843_TEST_XSCALE; |
|
| - | 633 | yscale = HMC5843_TEST_YSCALE; |
|
| - | 634 | zscale = HMC5843_TEST_ZSCALE; |
|
| - | 635 | break; |
|
| - | 636 | ||
| - | 637 | case MAG_TYPE_LSM303DLH: |
|
| - | 638 | crb_gain = LSM303DLH_CRB_GAIN_13GA; |
|
| - | 639 | cra_rate = LSM303DLH_CRA_RATE_75HZ; |
|
| - | 640 | xscale = LSM303DLH_TEST_XSCALE; |
|
| - | 641 | yscale = LSM303DLH_TEST_YSCALE; |
|
| - | 642 | zscale = LSM303DLH_TEST_ZSCALE; |
|
| - | 643 | break; |
|
| - | 644 | ||
| - | 645 | default: |
|
| - | 646 | return(0); |
|
| - | 647 | } |
|
| - | 648 | ||
| - | 649 | MagConfig.cra = cra_rate|CRA_MODE_NORMAL; |
|
| - | 650 | MagConfig.crb = crb_gain; |
|
| - | 651 | MagConfig.mode = MODE_CONTINUOUS; |
|
| - | 652 | NCMAG_SetMagConfig(); |
|
| - | 653 | } |
|
| - | 654 | ||
| 601 | 655 | ||
| 602 | // -------------------------------------------------------- |
656 | // -------------------------------------------------------- |
| 603 | void NCMAG_Update(void) |
657 | void NCMAG_Update(void) |
| 604 | { |
658 | { |
| 605 | static u32 TimerUpdate = 0; |
659 | static u32 TimerUpdate = 0; |
| 606 | static u8 send_config = 0; |
660 | static u8 send_config = 0; |
| 607 | 661 | ||
| 608 | if( (I2C_State == I2C_STATE_OFF) || !NCMAG_Present ) |
662 | if( (I2C_State == I2C_STATE_OFF) || !NCMAG_Present ) |
| 609 | { |
663 | { |
| 610 | Compass_Heading = -1; |
664 | Compass_Heading = -1; |
| 611 | DebugOut.Analog[14]++; // count I2C error |
665 | DebugOut.Analog[14]++; // count I2C error |
| 612 | return; |
666 | return; |
| 613 | } |
667 | } |
| 614 | if(CheckDelay(TimerUpdate)) |
668 | if(CheckDelay(TimerUpdate)) |
| 615 | { |
669 | { |
| 616 | if(Compass_Heading != -1) send_config = 0; // no re-configuration if value is valid |
670 | if(Compass_Heading != -1) send_config = 0; // no re-configuration if value is valid |
| 617 | if(++send_config == 25) // 500ms |
671 | if(++send_config == 25) // 500ms |
| 618 | { |
672 | { |
| 619 | send_config = 0; |
673 | send_config = 0; |
| 620 | MagConfig.mode = MODE_CONTINUOUS; |
- | |
| 621 | // activate positive bias field |
- | |
| 622 | NCMAG_SetMagConfig(); |
674 | InitNC_MagnetSensor(); |
| 623 | TimerUpdate = SetDelay(15); // back into the old time-slot |
675 | TimerUpdate = SetDelay(15); // back into the old time-slot |
| 624 | } |
676 | } |
| 625 | else |
677 | else |
| 626 | { |
678 | { |
| 627 | // check for new calibration state |
679 | // check for new calibration state |
| 628 | Compass_UpdateCalState(); |
680 | Compass_UpdateCalState(); |
| 629 | if(Compass_CalState) NCMAG_Calibrate(); |
681 | if(Compass_CalState) NCMAG_Calibrate(); |
| 630 | NCMAG_GetMagVector(); //Get new data; |
682 | NCMAG_GetMagVector(); //Get new data; |
| 631 | if(send_config == 24) TimerUpdate = SetDelay(5); // next event is the re-configuration |
683 | if(send_config == 24) TimerUpdate = SetDelay(5); // next event is the re-configuration |
| 632 | else TimerUpdate = SetDelay(20); // every 20 ms are 50 Hz |
684 | else TimerUpdate = SetDelay(20); // every 20 ms are 50 Hz |
| 633 | } |
685 | } |
| 634 | } |
686 | } |
| 635 | } |
687 | } |
| - | 688 | ||
| 636 | 689 | ||
| 637 | // -------------------------------------------------------- |
690 | // -------------------------------------------------------- |
| 638 | u8 NCMAG_SelfTest(void) |
691 | u8 NCMAG_SelfTest(void) |
| 639 | { |
692 | { |
| 640 | u8 msg[64]; |
693 | u8 msg[64]; |
| 641 | static u8 done = 0; |
694 | static u8 done = 0; |
| 642 | 695 | ||
| 643 | if(done) return(1); // just make it once |
696 | if(done) return(1); // just make it once |
| 644 | 697 | ||
| 645 | #define LIMITS(value, min, max) {min = (80 * value)/100; max = (120 * value)/100;} |
698 | #define LIMITS(value, min, max) {min = (80 * value)/100; max = (120 * value)/100;} |
| 646 | u32 time; |
699 | u32 time; |
| 647 | s32 XMin = 0, XMax = 0, YMin = 0, YMax = 0, ZMin = 0, ZMax = 0; |
700 | s32 XMin = 0, XMax = 0, YMin = 0, YMax = 0, ZMin = 0, ZMax = 0; |
| 648 | s16 xscale, yscale, zscale, scale_min, scale_max; |
701 | s16 xscale, yscale, zscale, scale_min, scale_max; |
| 649 | u8 crb_gain, cra_rate; |
702 | u8 crb_gain, cra_rate; |
| 650 | u8 i = 0, retval = 1; |
703 | u8 i = 0, retval = 1; |
| 651 | 704 | ||
| 652 | switch(NCMAG_MagType) |
705 | switch(NCMAG_MagType) |
| 653 | { |
706 | { |
| 654 | case MAG_TYPE_HMC5843: |
707 | case MAG_TYPE_HMC5843: |
| 655 | crb_gain = HMC5843_CRB_GAIN_10GA; |
708 | crb_gain = HMC5843_CRB_GAIN_10GA; |
| 656 | cra_rate = HMC5843_CRA_RATE_50HZ; |
709 | cra_rate = HMC5843_CRA_RATE_50HZ; |
| 657 | xscale = HMC5843_TEST_XSCALE; |
710 | xscale = HMC5843_TEST_XSCALE; |
| 658 | yscale = HMC5843_TEST_YSCALE; |
711 | yscale = HMC5843_TEST_YSCALE; |
| 659 | zscale = HMC5843_TEST_ZSCALE; |
712 | zscale = HMC5843_TEST_ZSCALE; |
| 660 | break; |
713 | break; |
| 661 | 714 | ||
| 662 | case MAG_TYPE_LSM303DLH: |
715 | case MAG_TYPE_LSM303DLH: |
| 663 | crb_gain = LSM303DLH_CRB_GAIN_13GA; |
716 | crb_gain = LSM303DLH_CRB_GAIN_13GA; |
| 664 | cra_rate = LSM303DLH_CRA_RATE_75HZ; |
717 | cra_rate = LSM303DLH_CRA_RATE_75HZ; |
| 665 | xscale = LSM303DLH_TEST_XSCALE; |
718 | xscale = LSM303DLH_TEST_XSCALE; |
| 666 | yscale = LSM303DLH_TEST_YSCALE; |
719 | yscale = LSM303DLH_TEST_YSCALE; |
| 667 | zscale = LSM303DLH_TEST_ZSCALE; |
720 | zscale = LSM303DLH_TEST_ZSCALE; |
| 668 | break; |
721 | break; |
| 669 | 722 | ||
| 670 | default: |
723 | default: |
| 671 | return(0); |
724 | return(0); |
| 672 | } |
725 | } |
| 673 | 726 | ||
| 674 | MagConfig.cra = cra_rate|CRA_MODE_POSBIAS; |
727 | MagConfig.cra = cra_rate|CRA_MODE_POSBIAS; |
| 675 | MagConfig.crb = crb_gain; |
728 | MagConfig.crb = crb_gain; |
| 676 | MagConfig.mode = MODE_CONTINUOUS; |
729 | MagConfig.mode = MODE_CONTINUOUS; |
| 677 | // activate positive bias field |
730 | // activate positive bias field |
| 678 | NCMAG_SetMagConfig(); |
731 | NCMAG_SetMagConfig(); |
| 679 | // wait for stable readings |
732 | // wait for stable readings |
| 680 | time = SetDelay(50); |
733 | time = SetDelay(50); |
| 681 | while(!CheckDelay(time)); |
734 | while(!CheckDelay(time)); |
| 682 | // averaging |
735 | // averaging |
| 683 | #define AVERAGE 20 |
736 | #define AVERAGE 20 |
| 684 | for(i = 0; i<AVERAGE; i++) |
737 | for(i = 0; i<AVERAGE; i++) |
| 685 | { |
738 | { |
| 686 | NCMAG_GetMagVector(); |
739 | NCMAG_GetMagVector(); |
| 687 | time = SetDelay(20); |
740 | time = SetDelay(20); |
| 688 | while(!CheckDelay(time)); |
741 | while(!CheckDelay(time)); |
| 689 | XMax += MagRawVector.X; |
742 | XMax += MagRawVector.X; |
| 690 | YMax += MagRawVector.Y; |
743 | YMax += MagRawVector.Y; |
| 691 | ZMax += MagRawVector.Z; |
744 | ZMax += MagRawVector.Z; |
| 692 | } |
745 | } |
| 693 | MagConfig.cra = cra_rate|CRA_MODE_NEGBIAS; |
746 | MagConfig.cra = cra_rate|CRA_MODE_NEGBIAS; |
| 694 | // activate positive bias field |
747 | // activate positive bias field |
| 695 | NCMAG_SetMagConfig(); |
748 | NCMAG_SetMagConfig(); |
| 696 | // wait for stable readings |
749 | // wait for stable readings |
| 697 | time = SetDelay(50); |
750 | time = SetDelay(50); |
| 698 | while(!CheckDelay(time)); |
751 | while(!CheckDelay(time)); |
| 699 | // averaging |
752 | // averaging |
| 700 | for(i = 0; i < AVERAGE; i++) |
753 | for(i = 0; i < AVERAGE; i++) |
| 701 | { |
754 | { |
| 702 | NCMAG_GetMagVector(); |
755 | NCMAG_GetMagVector(); |
| 703 | time = SetDelay(20); |
756 | time = SetDelay(20); |
| 704 | while(!CheckDelay(time)); |
757 | while(!CheckDelay(time)); |
| 705 | XMin += MagRawVector.X; |
758 | XMin += MagRawVector.X; |
| 706 | YMin += MagRawVector.Y; |
759 | YMin += MagRawVector.Y; |
| 707 | ZMin += MagRawVector.Z; |
760 | ZMin += MagRawVector.Z; |
| 708 | } |
761 | } |
| 709 | // setup final configuration |
762 | // setup final configuration |
| 710 | MagConfig.cra = cra_rate|CRA_MODE_NORMAL; |
763 | MagConfig.cra = cra_rate|CRA_MODE_NORMAL; |
| 711 | // activate positive bias field |
764 | // activate positive bias field |
| 712 | NCMAG_SetMagConfig(); |
765 | NCMAG_SetMagConfig(); |
| 713 | // check scale for all axes |
766 | // check scale for all axes |
| 714 | // prepare scale limits |
767 | // prepare scale limits |
| 715 | LIMITS(xscale, scale_min, scale_max); |
768 | LIMITS(xscale, scale_min, scale_max); |
| 716 | xscale = (XMax - XMin)/(2*AVERAGE); |
769 | xscale = (XMax - XMin)/(2*AVERAGE); |
| 717 | if((xscale > scale_max) || (xscale < scale_min)) |
770 | if((xscale > scale_max) || (xscale < scale_min)) |
| 718 | { |
771 | { |
| 719 | retval = 0; |
772 | retval = 0; |
| 720 | sprintf(msg, "\r\n Value X: %d not %d-%d !", xscale, scale_min,scale_max); |
773 | sprintf(msg, "\r\n Value X: %d not %d-%d !", xscale, scale_min,scale_max); |
| 721 | UART1_PutString(msg); |
774 | UART1_PutString(msg); |
| 722 | } |
775 | } |
| 723 | LIMITS(yscale, scale_min, scale_max); |
776 | LIMITS(yscale, scale_min, scale_max); |
| 724 | yscale = (YMax - YMin)/(2*AVERAGE); |
777 | yscale = (YMax - YMin)/(2*AVERAGE); |
| 725 | if((yscale > scale_max) || (yscale < scale_min)) |
778 | if((yscale > scale_max) || (yscale < scale_min)) |
| 726 | { |
779 | { |
| 727 | retval = 0; |
780 | retval = 0; |
| 728 | sprintf(msg, "\r\n Value Y: %d not %d-%d !", yscale, scale_min,scale_max); |
781 | sprintf(msg, "\r\n Value Y: %d not %d-%d !", yscale, scale_min,scale_max); |
| 729 | UART1_PutString(msg); |
782 | UART1_PutString(msg); |
| 730 | } |
783 | } |
| 731 | LIMITS(zscale, scale_min, scale_max); |
784 | LIMITS(zscale, scale_min, scale_max); |
| 732 | zscale = (ZMax - ZMin)/(2*AVERAGE); |
785 | zscale = (ZMax - ZMin)/(2*AVERAGE); |
| 733 | if((zscale > scale_max) || (zscale < scale_min)) |
786 | if((zscale > scale_max) || (zscale < scale_min)) |
| 734 | { |
787 | { |
| 735 | retval = 0; |
788 | retval = 0; |
| 736 | sprintf(msg, "\r\n Value Z: %d not %d-%d !", zscale, scale_min,scale_max); |
789 | sprintf(msg, "\r\n Value Z: %d not %d-%d !", zscale, scale_min,scale_max); |
| 737 | UART1_PutString(msg); |
790 | UART1_PutString(msg); |
| 738 | } |
791 | } |
| 739 | done = retval; |
792 | done = retval; |
| 740 | return(retval); |
793 | return(retval); |
| 741 | } |
794 | } |
| 742 | 795 | ||
| 743 | 796 | ||
| 744 | //---------------------------------------------------------------- |
797 | //---------------------------------------------------------------- |
| 745 | u8 NCMAG_Init(void) |
798 | u8 NCMAG_Init(void) |
| 746 | { |
799 | { |
| 747 | u8 msg[64]; |
800 | u8 msg[64]; |
| 748 | u8 retval = 0; |
801 | u8 retval = 0; |
| 749 | u8 repeat; |
802 | u8 repeat; |
| 750 | 803 | ||
| 751 | NCMAG_Present = 0; |
804 | NCMAG_Present = 0; |
| 752 | NCMAG_MagType = MAG_TYPE_HMC5843; // assuming having an HMC5843 |
805 | NCMAG_MagType = MAG_TYPE_HMC5843; // assuming having an HMC5843 |
| 753 | // polling for LSM302DLH option |
806 | // polling for LSM302DLH option |
| 754 | repeat = 0; |
807 | repeat = 0; |
| 755 | do |
808 | do |
| 756 | { |
809 | { |
| 757 | retval = NCMAG_GetAccConfig(); |
810 | retval = NCMAG_GetAccConfig(); |
| 758 | if(retval) break; // break loop on success |
811 | if(retval) break; // break loop on success |
| 759 | UART1_PutString("."); |
812 | UART1_PutString("."); |
| 760 | repeat++; |
813 | repeat++; |
| 761 | }while(repeat < 3); |
814 | }while(repeat < 3); |
| 762 | if(retval) NCMAG_MagType = MAG_TYPE_LSM303DLH; // must be a LSM303DLH |
815 | if(retval) NCMAG_MagType = MAG_TYPE_LSM303DLH; // must be a LSM303DLH |
| 763 | // polling of identification |
816 | // polling of identification |
| 764 | repeat = 0; |
817 | repeat = 0; |
| 765 | do |
818 | do |
| 766 | { |
819 | { |
| 767 | retval = NCMAG_GetIdentification_Sub(); |
820 | retval = NCMAG_GetIdentification_Sub(); |
| 768 | if(retval) break; // break loop on success |
821 | if(retval) break; // break loop on success |
| 769 | UART1_PutString("."); |
822 | UART1_PutString("."); |
| 770 | repeat++; |
823 | repeat++; |
| 771 | }while(repeat < 12); |
824 | }while(repeat < 12); |
| 772 | retval = 0; |
825 | retval = 0; |
| 773 | do |
826 | do |
| 774 | { |
827 | { |
| 775 | retval = NCMAG_GetIdentification(); |
828 | retval = NCMAG_GetIdentification(); |
| 776 | if(retval) break; // break loop on success |
829 | if(retval) break; // break loop on success |
| 777 | UART1_PutString("."); |
830 | UART1_PutString("."); |
| 778 | repeat++; |
831 | repeat++; |
| 779 | }while(repeat < 12); |
832 | }while(repeat < 12); |
| 780 | 833 | ||
| 781 | // if we got an answer to id request |
834 | // if we got an answer to id request |
| 782 | if(retval) |
835 | if(retval) |
| 783 | { |
836 | { |
| 784 | u8 n1[] = "\n\r HMC5843"; |
837 | u8 n1[] = "\n\r HMC5843"; |
| 785 | u8 n2[] = "\n\r LSM303DLH"; |
838 | u8 n2[] = "\n\r LSM303DLH"; |
| 786 | u8 n3[] = "\n\r LSM303DLM"; |
839 | u8 n3[] = "\n\r LSM303DLM"; |
| 787 | u8* pn; |
840 | u8* pn; |
| 788 | 841 | ||
| 789 | pn = n1; |
842 | pn = n1; |
| 790 | if(NCMAG_MagType == MAG_TYPE_LSM303DLH) |
843 | if(NCMAG_MagType == MAG_TYPE_LSM303DLH) |
| 791 | { |
844 | { |
| 792 | if(NCMAG_Identification2.Sub == 0x3c) pn = n3; |
845 | if(NCMAG_Identification2.Sub == 0x3c) pn = n3; |
| 793 | else pn = n2; |
846 | else pn = n2; |
| 794 | } |
847 | } |
| 795 | 848 | ||
| 796 | sprintf(msg, " %s ID 0x%02x/%02x/%02x-%02x", pn, NCMAG_Identification.A, NCMAG_Identification.B, NCMAG_Identification.C,NCMAG_Identification2.Sub); |
849 | sprintf(msg, " %s ID 0x%02x/%02x/%02x-%02x", pn, NCMAG_Identification.A, NCMAG_Identification.B, NCMAG_Identification.C,NCMAG_Identification2.Sub); |
| 797 | UART1_PutString(msg); |
850 | UART1_PutString(msg); |
| 798 | if ( (NCMAG_Identification.A == MAG_IDA) |
851 | if ( (NCMAG_Identification.A == MAG_IDA) |
| 799 | && (NCMAG_Identification.B == MAG_IDB) |
852 | && (NCMAG_Identification.B == MAG_IDB) |
| 800 | && (NCMAG_Identification.C == MAG_IDC)) |
853 | && (NCMAG_Identification.C == MAG_IDC)) |
| 801 | { |
854 | { |
| 802 | NCMAG_Present = 1; |
855 | NCMAG_Present = 1; |
| 803 | 856 | ||
| 804 | if(EEPROM_Init()) |
857 | if(EEPROM_Init()) |
| 805 | { |
858 | { |
| 806 | NCMAG_IsCalibrated = NCMag_CalibrationRead(); |
859 | NCMAG_IsCalibrated = NCMag_CalibrationRead(); |
| 807 | if(!NCMAG_IsCalibrated) UART1_PutString("\r\n Not calibrated!"); |
860 | if(!NCMAG_IsCalibrated) UART1_PutString("\r\n Not calibrated!"); |
| 808 | } |
861 | } |
| 809 | else UART1_PutString("\r\n EEPROM data not available!!!!!!!!!!!!!!!"); |
862 | else UART1_PutString("\r\n EEPROM data not available!!!!!!!!!!!!!!!"); |
| 810 | 863 | ||
| 811 | if(NCMAG_Identification2.Sub == 0x00) |
864 | if(NCMAG_Identification2.Sub == 0x00) |
| 812 | { |
865 | { |
| 813 | if(!NCMAG_SelfTest()) |
866 | if(!NCMAG_SelfTest()) |
| 814 | { |
867 | { |
| 815 | UART1_PutString("\r\n Selftest failed!!!!!!!!!!!!!!!!!!!!\r\n"); |
868 | UART1_PutString("\r\n Selftest failed!!!!!!!!!!!!!!!!!!!!\r\n"); |
| 816 | LED_RED_ON; |
869 | LED_RED_ON; |
| 817 | NCMAG_IsCalibrated = 0; |
870 | NCMAG_IsCalibrated = 0; |
| 818 | } else UART1_PutString("\r\n Selftest ok"); |
871 | } else UART1_PutString("\r\n Selftest ok"); |
| 819 | } |
872 | } |
| 820 | - | ||
| - | 873 | else InitNC_MagnetSensor(); |
|
| 821 | } |
874 | } |
| 822 | else |
875 | else |
| 823 | { |
876 | { |
| 824 | UART1_PutString("\n\r Not compatible!"); |
877 | UART1_PutString("\n\r Not compatible!"); |
| 825 | UART_VersionInfo.HardwareError[0] |= NC_ERROR0_COMPASS_INCOMPATIBLE; |
878 | UART_VersionInfo.HardwareError[0] |= NC_ERROR0_COMPASS_INCOMPATIBLE; |
| 826 | LED_RED_ON; |
879 | LED_RED_ON; |
| 827 | } |
880 | } |
| 828 | } |
881 | } |
| 829 | else // nothing found |
882 | else // nothing found |
| 830 | { |
883 | { |
| 831 | NCMAG_MagType = MAG_TYPE_NONE; |
884 | NCMAG_MagType = MAG_TYPE_NONE; |
| 832 | UART1_PutString("not found!"); |
885 | UART1_PutString("not found!"); |
| 833 | } |
886 | } |
| 834 | return(NCMAG_Present); |
887 | return(NCMAG_Present); |
| 835 | } |
888 | } |
| 836 | 889 | ||
| 837 | 890 | ||