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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) 2008 Ingo Busker, Holger Buss |
5 | // + Copyright (c) 2008 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 <stdio.h> |
57 | #include <stdio.h> |
58 | #include <string.h> |
58 | #include <string.h> |
59 | #include "91x_lib.h" |
59 | #include "91x_lib.h" |
60 | #include "mk3mag.h" |
60 | #include "mk3mag.h" |
61 | #include "i2c.h" |
61 | #include "i2c.h" |
62 | #include "timer1.h" |
62 | #include "timer1.h" |
63 | #include "led.h" |
63 | #include "led.h" |
64 | #include "main.h" |
64 | #include "main.h" |
65 | #include "uart1.h" |
65 | #include "uart1.h" |
66 | #include "compass.h" |
66 | #include "compass.h" |
67 | 67 | ||
68 | #define MK3MAG_SLAVE_ADDRESS 0x50 // i2C slave address |
68 | #define MK3MAG_SLAVE_ADDRESS 0x50 // i2C slave address |
69 | 69 | ||
70 | u8 MK3MAG_Present = 0; |
70 | u8 MK3MAG_Present = 0; |
71 | 71 | ||
72 | typedef struct |
72 | typedef struct |
73 | { |
73 | { |
74 | s16 Nick; |
74 | s16 Nick; |
75 | s16 Roll; |
75 | s16 Roll; |
76 | } __attribute__((packed)) MK3MAG_WriteAttitude_t; |
76 | } __attribute__((packed)) MK3MAG_WriteAttitude_t; |
77 | 77 | ||
78 | typedef struct |
78 | typedef struct |
79 | { |
79 | { |
80 | u8 Major; |
80 | u8 Major; |
81 | u8 Minor; |
81 | u8 Minor; |
82 | u8 Patch; |
82 | u8 Patch; |
83 | u8 Compatible; |
83 | u8 Compatible; |
84 | } __attribute__((packed)) MK3MAG_Version_t; |
84 | } __attribute__((packed)) MK3MAG_Version_t; |
85 | 85 | ||
86 | typedef struct |
86 | typedef struct |
87 | { |
87 | { |
88 | u8 CalByte; |
88 | u8 CalByte; |
89 | u8 Dummy1; |
89 | u8 Dummy1; |
90 | u8 Dummy2; |
90 | u8 Dummy2; |
91 | } __attribute__((packed)) MK3MAG_Cal_t; |
91 | } __attribute__((packed)) MK3MAG_Cal_t; |
92 | 92 | ||
93 | // Transfer buffers |
93 | // Transfer buffers |
94 | volatile MK3MAG_WriteAttitude_t MK3MAG_WriteAttitude; |
94 | volatile MK3MAG_WriteAttitude_t MK3MAG_WriteAttitude; |
95 | volatile MK3MAG_Version_t MK3MAG_Version; |
95 | volatile MK3MAG_Version_t MK3MAG_Version; |
96 | volatile MK3MAG_Cal_t MK3MAG_WriteCal; |
96 | volatile MK3MAG_Cal_t MK3MAG_WriteCal; |
97 | volatile MK3MAG_Cal_t MK3MAG_ReadCal; |
97 | volatile MK3MAG_Cal_t MK3MAG_ReadCal; |
98 | 98 | ||
99 | // ------------------------------------------------------------------------------- |
99 | // ------------------------------------------------------------------------------- |
100 | // the calculation of the MK3MAG packet checksum |
100 | // the calculation of the MK3MAG packet checksum |
101 | 101 | ||
102 | // calculate the crc of bytecount bytes in buffer |
102 | // calculate the crc of bytecount bytes in buffer |
103 | u8 MK3MAG_CalcCRC(u8* pBuffer, u8 bytecount) |
103 | u8 MK3MAG_CalcCRC(u8* pBuffer, u8 bytecount) |
104 | { |
104 | { |
105 | u8 i, crc = 0; |
105 | u8 i, crc = 0; |
106 | for(i=0; i < bytecount; i++) |
106 | for(i=0; i < bytecount; i++) |
107 | { |
107 | { |
108 | crc += pBuffer[i]; |
108 | crc += pBuffer[i]; |
109 | } |
109 | } |
110 | crc = ~crc; |
110 | crc = ~crc; |
111 | return crc; |
111 | return crc; |
112 | } |
112 | } |
113 | 113 | ||
114 | // assuming the last byte in buffer is the crc byte |
114 | // assuming the last byte in buffer is the crc byte |
115 | u8 MK3MAG_CheckCRC(u8* pBuffer, u8 BuffLen) |
115 | u8 MK3MAG_CheckCRC(u8* pBuffer, u8 BuffLen) |
116 | { |
116 | { |
117 | u8 crc = 0, retval = 0; |
117 | u8 crc = 0, retval = 0; |
118 | if(BuffLen == 0) return(retval); |
118 | if(BuffLen == 0) return(retval); |
119 | crc = MK3MAG_CalcCRC(pBuffer, BuffLen-1); |
119 | crc = MK3MAG_CalcCRC(pBuffer, BuffLen-1); |
120 | if(crc == pBuffer[BuffLen-1]) |
120 | if(crc == pBuffer[BuffLen-1]) |
121 | { |
121 | { |
122 | retval = 1; |
122 | retval = 1; |
123 | DebugOut.Analog[15]++; // count mk3mag ok |
123 | DebugOut.Analog[15]++; // count mk3mag ok |
124 | } |
124 | } |
125 | else |
125 | else |
126 | { |
126 | { |
127 | retval = 0; |
127 | retval = 0; |
128 | DebugOut.Analog[14]++; // count mk3mag crc error |
128 | DebugOut.Analog[14]++; // count mk3mag crc error |
129 | } |
129 | } |
130 | return(retval); |
130 | return(retval); |
131 | } |
131 | } |
132 | 132 | ||
133 | // ------------------------------------------------------------------------------- |
133 | // ------------------------------------------------------------------------------- |
134 | // the I2C rx data handler functions |
134 | // the I2C rx data handler functions |
135 | 135 | ||
136 | // rx data handler for version info request |
136 | // rx data handler for version info request |
137 | void MK3MAG_UpdateVersion(u8* pRxBuffer, u8 RxBufferSize) |
137 | void MK3MAG_UpdateVersion(u8* pRxBuffer, u8 RxBufferSize) |
138 | { // if crc is ok and number of byte are matching |
138 | { // if crc is ok and number of byte are matching |
139 | if(MK3MAG_CheckCRC(pRxBuffer, RxBufferSize) && (RxBufferSize == (sizeof(MK3MAG_Version)+1)) ) |
139 | if(MK3MAG_CheckCRC(pRxBuffer, RxBufferSize) && (RxBufferSize == (sizeof(MK3MAG_Version)+1)) ) |
140 | { |
140 | { |
141 | memcpy((u8 *)&MK3MAG_Version, pRxBuffer, sizeof(MK3MAG_Version)); |
141 | memcpy((u8 *)&MK3MAG_Version, pRxBuffer, sizeof(MK3MAG_Version)); |
142 | } |
142 | } |
143 | } |
143 | } |
144 | 144 | ||
145 | // rx data handler for calibration request |
145 | // rx data handler for calibration request |
146 | void MK3MAG_UpdateCalibration(u8* pRxBuffer, u8 RxBufferSize) |
146 | void MK3MAG_UpdateCalibration(u8* pRxBuffer, u8 RxBufferSize) |
147 | { // if crc is ok and number of byte are matching |
147 | { // if crc is ok and number of byte are matching |
148 | if(MK3MAG_CheckCRC(pRxBuffer, RxBufferSize) && (RxBufferSize == (sizeof(MK3MAG_ReadCal)+1)) ) |
148 | if(MK3MAG_CheckCRC(pRxBuffer, RxBufferSize) && (RxBufferSize == (sizeof(MK3MAG_ReadCal)+1)) ) |
149 | { |
149 | { |
150 | memcpy((u8 *)&MK3MAG_ReadCal, pRxBuffer, sizeof(MK3MAG_ReadCal)); |
150 | memcpy((u8 *)&MK3MAG_ReadCal, pRxBuffer, sizeof(MK3MAG_ReadCal)); |
151 | } |
151 | } |
152 | } |
152 | } |
153 | 153 | ||
154 | // rx data handler for magnetic vector request |
154 | // rx data handler for magnetic vector request |
155 | void MK3MAG_UpdateMagVector(u8* pRxBuffer, u8 RxBufferSize) |
155 | void MK3MAG_UpdateMagVector(u8* pRxBuffer, u8 RxBufferSize) |
156 | { // if crc is ok and number of byte are matching |
156 | { // if crc is ok and number of byte are matching |
157 | if(MK3MAG_CheckCRC(pRxBuffer, RxBufferSize) && (RxBufferSize == (sizeof(MagVector)+1)) ) |
157 | if(MK3MAG_CheckCRC(pRxBuffer, RxBufferSize) && (RxBufferSize == (sizeof(MagVector)+1)) ) |
158 | { |
158 | { |
159 | s16vec_t *pMagVector = (s16vec_t*)pRxBuffer; |
159 | s16vec_t *pMagVector = (s16vec_t*)pRxBuffer; |
160 | MagVector.X = pMagVector->Y; |
160 | MagVector.X = pMagVector->Y; |
161 | MagVector.Y = pMagVector->X; |
161 | MagVector.Y = pMagVector->X; |
162 | MagVector.Z = -pMagVector->Z; |
162 | MagVector.Z = -pMagVector->Z; |
163 | Compass_CalcHeading(); |
163 | Compass_CalcHeading(); |
164 | } |
164 | } |
165 | } |
165 | } |
166 | 166 | ||
167 | //---------------------------------------------------------------- |
167 | //---------------------------------------------------------------- |
168 | #define MK3MAG_CMD_VERSION 0x01 |
168 | #define MK3MAG_CMD_VERSION 0x01 |
169 | #define MK3MAG_CMD_READ_MAGVECT 0x02 |
169 | #define MK3MAG_CMD_READ_MAGVECT 0x02 |
170 | #define MK3MAG_CMD_WRITE_CAL 0x04 |
170 | #define MK3MAG_CMD_WRITE_CAL 0x04 |
171 | 171 | ||
172 | void MK3MAG_SendCommand(u8 command) |
172 | void MK3MAG_SendCommand(u8 command) |
173 | { |
173 | { |
174 | // try to catch the I2C buffer |
174 | // try to catch the I2C buffer |
175 | if(I2C_LockBuffer(0)) |
175 | if(I2C_LockBuffer(0)) |
176 | { |
176 | { |
177 | u16 TxBytes = 0; |
177 | u16 TxBytes = 0; |
178 | u16 RxBytes = 0; |
178 | u16 RxBytes = 0; |
179 | I2C_pRxHandler_t pRxHandlerFunc = NULL; |
179 | I2C_pRxHandler_t pRxHandlerFunc = NULL; |
180 | 180 | ||
181 | // update current command id |
181 | // update current command id |
182 | I2C_Buffer[TxBytes++] = command; |
182 | I2C_Buffer[TxBytes++] = command; |
183 | 183 | ||
184 | // set pointers to data area with respect to the command id |
184 | // set pointers to data area with respect to the command id |
185 | switch (command) |
185 | switch (command) |
186 | { |
186 | { |
187 | case MK3MAG_CMD_VERSION: |
187 | case MK3MAG_CMD_VERSION: |
188 | RxBytes = sizeof(MK3MAG_Version)+1; |
188 | RxBytes = sizeof(MK3MAG_Version)+1; |
189 | pRxHandlerFunc = &MK3MAG_UpdateVersion; |
189 | pRxHandlerFunc = &MK3MAG_UpdateVersion; |
190 | break; |
190 | break; |
191 | case MK3MAG_CMD_WRITE_CAL: |
191 | case MK3MAG_CMD_WRITE_CAL: |
192 | RxBytes = sizeof(MK3MAG_ReadCal)+1; |
192 | RxBytes = sizeof(MK3MAG_ReadCal)+1; |
193 | pRxHandlerFunc = &MK3MAG_UpdateCalibration; |
193 | pRxHandlerFunc = &MK3MAG_UpdateCalibration; |
194 | memcpy((u8*)I2C_Buffer+1, (u8*)&MK3MAG_WriteCal, sizeof(MK3MAG_WriteCal)); |
194 | memcpy((u8*)I2C_Buffer+1, (u8*)&MK3MAG_WriteCal, sizeof(MK3MAG_WriteCal)); |
195 | TxBytes += sizeof(MK3MAG_WriteCal); |
195 | TxBytes += sizeof(MK3MAG_WriteCal); |
196 | break; |
196 | break; |
197 | case MK3MAG_CMD_READ_MAGVECT: |
197 | case MK3MAG_CMD_READ_MAGVECT: |
198 | RxBytes = sizeof(MagVector)+1; |
198 | RxBytes = sizeof(MagVector)+1; |
199 | pRxHandlerFunc = &MK3MAG_UpdateMagVector; |
199 | pRxHandlerFunc = &MK3MAG_UpdateMagVector; |
200 | break; |
200 | break; |
201 | default: // unknown command id |
201 | default: // unknown command id |
202 | RxBytes = 0; |
202 | RxBytes = 0; |
203 | pRxHandlerFunc = NULL; |
203 | pRxHandlerFunc = NULL; |
204 | break; |
204 | break; |
205 | } |
205 | } |
206 | // update packet checksum |
206 | // update packet checksum |
207 | I2C_Buffer[TxBytes] = MK3MAG_CalcCRC((u8*)I2C_Buffer, TxBytes); |
207 | I2C_Buffer[TxBytes] = MK3MAG_CalcCRC((u8*)I2C_Buffer, TxBytes); |
208 | TxBytes++; |
208 | TxBytes++; |
209 | // initiate I2C transmission |
209 | // initiate I2C transmission |
210 | I2C_Transmission(MK3MAG_SLAVE_ADDRESS, TxBytes, pRxHandlerFunc, RxBytes); |
210 | I2C_Transmission(MK3MAG_SLAVE_ADDRESS, TxBytes, pRxHandlerFunc, RxBytes); |
211 | } // EOF I2C_State == I2C_IDLE |
211 | } // EOF I2C_State == I2C_IDLE |
212 | } |
212 | } |
213 | 213 | ||
214 | 214 | ||
215 | //---------------------------------------------------------------- |
215 | //---------------------------------------------------------------- |
216 | u8 MK3MAG_Init(void) |
216 | u8 MK3MAG_Init(void) |
217 | { |
217 | { |
218 | u8 msg[64]; |
218 | u8 msg[64]; |
219 | u8 repeat; |
219 | u8 repeat; |
220 | u32 timeout; |
220 | u32 timeout; |
221 | 221 | ||
222 | MK3MAG_Present = 0; |
222 | MK3MAG_Present = 0; |
223 | 223 | ||
224 | MK3MAG_Version.Major = 0xFF; |
224 | MK3MAG_Version.Major = 0xFF; |
225 | MK3MAG_Version.Minor = 0xFF; |
225 | MK3MAG_Version.Minor = 0xFF; |
226 | MK3MAG_Version.Patch = 0xFF; |
226 | MK3MAG_Version.Patch = 0xFF; |
227 | MK3MAG_Version.Compatible = 0xFF; |
227 | MK3MAG_Version.Compatible = 0xFF; |
228 | 228 | ||
229 | Compass_Heading = -1; |
229 | Compass_Heading = -1; |
230 | 230 | ||
231 | // polling of version info |
231 | // polling of version info |
232 | repeat = 0; |
232 | repeat = 0; |
233 | do |
233 | do |
234 | { |
234 | { |
235 | MK3MAG_SendCommand(MK3MAG_CMD_VERSION); |
235 | MK3MAG_SendCommand(MK3MAG_CMD_VERSION); |
236 | timeout = SetDelay(250); |
236 | timeout = SetDelay(250); |
237 | do |
237 | do |
238 | { |
238 | { |
239 | if (MK3MAG_Version.Major != 0xFF) break; // break loop on success |
239 | if (MK3MAG_Version.Major != 0xFF) break; // break loop on success |
240 | }while (!CheckDelay(timeout)); |
240 | }while (!CheckDelay(timeout)); |
241 | UART1_PutString("."); |
241 | UART1_PutString("."); |
242 | repeat++; |
242 | repeat++; |
243 | }while ((MK3MAG_Version.Major == 0xFF) && (repeat < 12)); // 12*250ms=3s |
243 | }while ((MK3MAG_Version.Major == 0xFF) && (repeat < 12)); // 12*250ms=3s |
244 | // if we got it |
244 | // if we got it |
245 | if (MK3MAG_Version.Major != 0xFF) |
245 | if (MK3MAG_Version.Major != 0xFF) |
246 | { |
246 | { |
247 | sprintf(msg, " MK3MAG V%d.%d%c", MK3MAG_Version.Major, MK3MAG_Version.Minor, 'a' + MK3MAG_Version.Patch); |
247 | sprintf(msg, " MK3MAG V%d.%d%c", MK3MAG_Version.Major, MK3MAG_Version.Minor, 'a' + MK3MAG_Version.Patch); |
248 | UART1_PutString(msg); |
248 | UART1_PutString(msg); |
249 | if(MK3MAG_Version.Compatible != MK3MAG_I2C_COMPATIBLE) |
249 | if(MK3MAG_Version.Compatible != MK3MAG_I2C_COMPATIBLE) |
250 | { |
250 | { |
251 | UART1_PutString("\n\r MK3MAG not compatible!"); |
251 | UART1_PutString("\n\r MK3MAG not compatible!"); |
252 | UART_VersionInfo.HardwareError[0] |= NC_ERROR0_COMPASS_INCOMPATIBLE; |
252 | UART_VersionInfo.HardwareError[0] |= NC_ERROR0_COMPASS_INCOMPATIBLE; |
253 | LED_RED_ON; |
253 | LED_RED_ON; |
254 | } |
254 | } |
255 | else |
255 | else |
256 | { // version ok |
256 | { // version ok |
257 | MK3MAG_Present = 1; |
257 | MK3MAG_Present = 1; |
258 | } |
258 | } |
259 | } |
259 | } |
260 | return(MK3MAG_Present); |
260 | return(MK3MAG_Present); |
261 | } |
261 | } |
262 | 262 | ||
263 | //---------------------------------------------------------------- |
263 | //---------------------------------------------------------------- |
264 | void MK3MAG_Update(void) |
264 | void MK3MAG_Update(void) |
265 | { |
265 | { |
266 | static u32 TimerUpdate = 0; |
266 | static u32 TimerUpdate = 0; |
267 | static s16 x_max,y_max,z_max,x_min,y_min,z_min; |
267 | static s16 x_max,y_max,z_max,x_min,y_min,z_min; |
- | 268 | static u8 last_state; |
|
- | 269 | u8 msg[64]; |
|
- | 270 | u16 MinCaclibration = 500; |
|
268 | 271 | ||
269 | if( (I2C_State == I2C_STATE_OFF) || !MK3MAG_Present ) return; |
272 | if( (I2C_State == I2C_STATE_OFF) || !MK3MAG_Present ) return; |
270 | 273 | ||
271 | if(CheckDelay(TimerUpdate)) |
274 | if(CheckDelay(TimerUpdate)) |
272 | { |
275 | { |
273 | // check for incomming compass calibration request |
276 | // check for incomming compass calibration request |
274 | Compass_UpdateCalState(); |
277 | Compass_UpdateCalState(); |
275 | MK3MAG_WriteCal.CalByte = Compass_CalState; |
278 | MK3MAG_WriteCal.CalByte = Compass_CalState; |
276 | 279 | ||
277 | if(MK3MAG_ReadCal.CalByte != MK3MAG_WriteCal.CalByte) |
280 | if(MK3MAG_ReadCal.CalByte != MK3MAG_WriteCal.CalByte) |
278 | { // send new calibration state |
281 | { // send new calibration state |
279 | MK3MAG_SendCommand(MK3MAG_CMD_WRITE_CAL); |
282 | MK3MAG_SendCommand(MK3MAG_CMD_WRITE_CAL); |
280 | } |
283 | } |
281 | else |
284 | else |
282 | { // calibration state matches |
285 | { // calibration state matches |
283 | MK3MAG_SendCommand(MK3MAG_CMD_READ_MAGVECT); // initiate magvector transfer |
286 | MK3MAG_SendCommand(MK3MAG_CMD_READ_MAGVECT); // initiate magvector transfer |
284 | 287 | ||
285 | switch(Compass_CalState) |
288 | switch(Compass_CalState) |
286 | { |
289 | { |
287 | case 1: |
290 | case 1: |
- | 291 | if(last_state != Compass_CalState) |
|
- | 292 | { |
|
- | 293 | UART1_PutString("\r\nMK3Mag calibration\n\r"); |
|
- | 294 | } |
|
- | 295 | ||
288 | x_max = -30000; y_max = -30000; z_max = -30000; |
296 | x_max = -30000; y_max = -30000; z_max = -30000; |
289 | x_min = 30000; y_min = 30000; z_min = 30000; |
297 | x_min = 30000; y_min = 30000; z_min = 30000; |
290 | break; |
298 | break; |
291 | 299 | ||
292 | case 2: |
300 | case 2: |
293 | if(MagVector.X > x_max) { x_max = MagVector.X; BeepTime = 60; } |
301 | if(MagVector.X > x_max) { x_max = MagVector.X; BeepTime = 60; } |
294 | else if(MagVector.X < x_min) { x_min = MagVector.X; BeepTime = 20; } |
302 | else if(MagVector.X < x_min) { x_min = MagVector.X; BeepTime = 20; } |
295 | if(MagVector.Y > y_max) { y_max = MagVector.Y; BeepTime = 60; } |
303 | if(MagVector.Y > y_max) { y_max = MagVector.Y; BeepTime = 60; } |
296 | else if(MagVector.Y < y_min) { y_min = MagVector.Y; BeepTime = 20; } |
304 | else if(MagVector.Y < y_min) { y_min = MagVector.Y; BeepTime = 20; } |
297 | break; |
305 | break; |
298 | 306 | ||
299 | case 4: |
307 | case 4: |
300 | if(MagVector.Z > z_max) { z_max = MagVector.Z; BeepTime = 80; } |
308 | if(MagVector.Z > z_max) { z_max = MagVector.Z; BeepTime = 80; } |
301 | else if(MagVector.Z < z_min) { z_min = MagVector.Z; BeepTime = 80; } |
309 | else if(MagVector.Z < z_min) { z_min = MagVector.Z; BeepTime = 80; } |
302 | break; |
310 | break; |
- | 311 | case 5: |
|
- | 312 | if(last_state == Compass_CalState) break; |
|
- | 313 | if(((x_max - x_min) > MinCaclibration) && ((y_max - y_min) > MinCaclibration) && ((z_max - z_min) > MinCaclibration)) |
|
- | 314 | { |
|
- | 315 | BeepTime = 2500; |
|
- | 316 | UART1_PutString("\r\n Calibration okay\n\r"); |
|
- | 317 | } |
|
- | 318 | else |
|
- | 319 | { |
|
- | 320 | UART1_PutString("\r\nCalibration FAILED - Values too low: "); |
|
- | 321 | if((x_max - x_min) < MinCaclibration) UART1_PutString("X! "); |
|
- | 322 | if((y_max - y_min) < MinCaclibration) UART1_PutString("y! "); |
|
- | 323 | if((z_max - z_min) < MinCaclibration) UART1_PutString("Z! "); |
|
- | 324 | UART1_PutString("\r\n"); |
|
- | 325 | sprintf(msg, "Minimum is: %i \r\n",MinCaclibration); |
|
- | 326 | } |
|
- | 327 | UART1_PutString(msg); |
|
- | 328 | sprintf(msg, "\r\nX: (%i - %i = %i)\r\n",x_max,x_min,x_max - x_min); |
|
- | 329 | UART1_PutString(msg); |
|
- | 330 | sprintf(msg, "Y: (%i - %i = %i)\r\n",y_max,y_min,y_max - y_min); |
|
- | 331 | UART1_PutString(msg); |
|
- | 332 | sprintf(msg, "Z: (%i - %i = %i)\r\n",z_max,z_min,z_max - z_min); |
|
- | 333 | UART1_PutString(msg); |
|
- | 334 | ||
303 | 335 | break; |
|
304 | default: |
336 | default: |
305 | break; |
337 | break; |
- | 338 | } |
|
306 | } |
339 | last_state = Compass_CalState; |
307 | } |
340 | } |
308 | TimerUpdate = SetDelay(20); // every 20 ms are 50 Hz |
341 | TimerUpdate = SetDelay(20); // every 20 ms are 50 Hz |
309 | } |
342 | } |
310 | } |
343 | } |
311 | 344 |