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308 | osiair | 1 | /* |
2 | This program (files spi.c and spi.h) is free software; you can redistribute it and/or modify |
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3 | it under the terms of the GNU General Public License as published by the Free Software Foundation; |
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4 | either version 3 of the License, or (at your option) any later version. |
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5 | This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
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6 | without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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7 | GNU General Public License for more details. You should have received a copy of the GNU General Public License |
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8 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
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9 | |||
10 | Please note: All the other files for the project "Mikrokopter" by H.Buss are under the license (license_buss.txt) published by www.mikrokopter.de |
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11 | */ |
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12 | /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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13 | Patrick Kögel |
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14 | Micromag3 Auswertung beta |
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15 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ |
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16 | //***************************************************************************** |
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17 | // |
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18 | // File Name : 'spi.c' |
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19 | // Title : SPI interface driver |
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20 | // Author : Pascal Stang - Copyright (C) 2000-2002 |
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21 | // Created : 11/22/2000 |
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22 | // Revised : 06/06/2002 |
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23 | // Version : 0.6 |
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24 | // Target MCU : Atmel AVR series |
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25 | // Editor Tabs : 4 |
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26 | // |
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27 | // NOTE: This code is currently below version 1.0, and therefore is considered |
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28 | // to be lacking in some functionality or documentation, or may not be fully |
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29 | // tested. Nonetheless, you can expect most functions to work. |
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30 | // |
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31 | // This code is distributed under the GNU Public License |
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32 | // which can be found at http://www.gnu.org/licenses/gpl.txt |
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33 | // |
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34 | //***************************************************************************** |
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35 | |||
36 | #include "main.h" |
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37 | |||
38 | |||
39 | |||
40 | // Define the SPI_USEINT key if you want SPI bus operation to be |
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41 | // interrupt-driven. The primary reason for not using SPI in |
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42 | // interrupt-driven mode is if the SPI send/transfer commands |
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43 | // will be used from within some other interrupt service routine |
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44 | // or if interrupts might be globally turned off due to of other |
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45 | // aspects of your program |
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46 | // |
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47 | // Comment-out or uncomment this line as necessary |
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48 | //#define SPI_USEINT |
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49 | |||
50 | // global variables |
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51 | volatile unsigned char spiTransferComplete,MessungFertig=0,KompassInUse =0,KompassInUseCal=0,NewX= 0,NewY= 0,NewZ= 0,EEPROMWrite=0; |
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52 | volatile signed char nickgrad=0,rollgrad=0,nickgradkomp=0,rollgradkomp=0; |
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53 | volatile double XE= 0,YE=0,nick=0,roll=0; |
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54 | volatile double richtungorgd=0,richtungorgr=0; |
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55 | volatile int iXsf=0,iYsf=0,iZsf=0; |
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56 | volatile int Xoffset=0, Yoffset=0, Zoffset=0; |
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57 | volatile signed int Xmax=-32768 , Xmin=32767, Ymax=-32768, Ymin=32767, Zmin=32767, Zmax=-32768; // where you store max and min X and Ys |
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58 | volatile int XrawOld=0, YrawOld=0, ZrawOld=0; // save values you get from the ASIC |
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59 | volatile int Xraw=0, Yraw=0, Zraw=0; // values you get from the ASIC |
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60 | volatile double XrawCal=0, YrawCal=0, ZrawCal=0; // values you get from the ASIC |
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61 | double XEx=0,XEy=0,XEz=0,YEy=0,YEz=0; |
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62 | int MagnetG=0; |
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63 | typedef struct |
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64 | { |
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65 | int Xoffsetm; |
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66 | int Yoffsetm; |
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67 | int Zoffsetm; |
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68 | int iXsfm; |
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69 | int iYsfm; |
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70 | int iZsfm; |
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71 | int dummy; |
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72 | |||
73 | } CALPARAKOMPASS ; |
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74 | |||
75 | CALPARAKOMPASS CalParaKompass; |
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76 | |||
77 | |||
78 | volatile int azimuthgrad= 0,azimuthold = 0; |
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79 | // SPI interrupt service handler |
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80 | #ifdef SPI_USEINT |
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81 | SIGNAL(SIG_SPI) |
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82 | { |
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83 | spiTransferComplete = 1; |
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84 | } |
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85 | #endif |
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86 | |||
87 | // access routines |
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88 | //------------------------------------------------------------------------------ |
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89 | // Name: |
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90 | // Function: |
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91 | // |
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92 | // Parameter: |
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93 | // Return: |
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94 | //------------------------------------------------------------------------------ |
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95 | void spiInit(void) |
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96 | { |
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97 | // setup SPI I/O pins |
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98 | sbi(PORTB, 7); // set SCK hi |
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99 | sbi(DDRB, 7); // set SCK as output |
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100 | cbi(DDRB, 6); // set MISO as input |
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101 | sbi(DDRB, 5); // set MOSI as output |
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102 | sbi(DDRD, 5); // SS must be output for Master mode to work |
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103 | sbi(DDRD, 3); // Reset output |
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104 | cbi(DDRD, 4); // DataReady as input |
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105 | |||
106 | // setup SPI interface : |
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107 | // master mode |
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108 | sbi(SPCR, MSTR); |
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109 | |||
110 | // clock = f/32 -> 20 MHZ /32 |
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111 | sbi(SPCR, SPR0); |
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112 | sbi(SPCR, SPR1); |
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113 | cbi(SPSR,SPI2X); |
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114 | |||
115 | // select clock phase positive-going in middle of data |
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116 | cbi(SPCR, CPOL); |
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117 | |||
118 | // Data order MSB first |
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119 | cbi(SPCR,DORD); |
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120 | |||
121 | // enable SPI |
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122 | sbi(SPCR, SPE); |
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123 | |||
124 | // clear status |
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125 | inb(SPSR); |
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126 | sbi(SPSR,SPI2X); |
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127 | spiTransferComplete = 1; |
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128 | |||
129 | // enable SPI interrupt |
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130 | #ifdef SPI_USEINT |
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131 | sbi(SPCR, SPIE); |
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132 | #endif |
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133 | } |
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134 | |||
135 | //------------------------------------------------------------------------------ |
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136 | // Name: |
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137 | // Function: |
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138 | // |
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139 | // Parameter: |
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140 | // Return: |
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141 | //------------------------------------------------------------------------------ |
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142 | void spiSendByte(unsigned char data) |
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143 | { |
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144 | // send a byte over SPI and ignore reply |
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145 | #ifdef SPI_USEINT |
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146 | while(!spiTransferComplete); |
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147 | spiTransferComplete = FALSE; |
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148 | #else |
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149 | while(!(inb(SPSR) & (1<<SPIF))); |
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150 | #endif |
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151 | |||
152 | outb(SPDR, data); |
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153 | } |
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154 | |||
155 | |||
156 | //------------------------------------------------------------------------------ |
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157 | // Name: |
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158 | // Function: |
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159 | // |
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160 | // Parameter: |
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161 | // Return: |
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162 | //------------------------------------------------------------------------------ |
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163 | unsigned char spiTransferByte(unsigned char data) |
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164 | { |
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165 | #ifdef SPI_USEINT |
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166 | // send the given data |
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167 | spiTransferComplete = FALSE; |
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168 | outb(SPDR, data); |
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169 | // wait for transfer to complete |
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170 | while(!spiTransferComplete); |
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171 | #else |
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172 | // send the given data |
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173 | outb(SPDR, data); |
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174 | // wait for transfer to complete |
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175 | while(!(inb(SPSR) & (1<<SPIF))); |
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176 | #endif |
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177 | // return the received data |
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178 | return inb(SPDR); |
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179 | } |
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180 | |||
181 | //------------------------------------------------------------------------------ |
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182 | // Name: |
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183 | // Function: |
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184 | // |
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185 | // Parameter: |
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186 | // Return: |
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187 | //------------------------------------------------------------------------------ |
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188 | unsigned int spiTransferWord(unsigned int data) |
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189 | { |
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190 | unsigned int rxData = 0; |
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191 | |||
192 | // send MS byte of given data |
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193 | rxData = (spiTransferByte((data>>8) & 0x00FF))<<8; |
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194 | // send LS byte of given data |
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195 | rxData |= (spiTransferByte(data & 0x00FF)); |
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196 | |||
197 | // return the received data |
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198 | return rxData; |
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199 | } |
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200 | |||
201 | //------------------------------------------------------------------------------ |
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202 | //---[ compassFilter ]---------------------------------------------------------- |
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203 | //------------------------------------------------------------------------------ |
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204 | /** Digital filter for the compass readings |
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205 | * \n Filter by Vadym Grygorenko |
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206 | * \n fn = (1/4)*(cn + 2*c_(n-1) + c_(n-2)) + (f_(n-1)) - (1/4)*f_(n-2) |
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207 | * |
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208 | * \param axiss The axis this measurement is for |
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209 | * \param reading The latest reading from the compass |
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210 | * \return The newest output from the filter |
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211 | * |
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212 | */ |
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213 | |||
214 | |||
215 | int compassFilter(unsigned char axiss, int reading) |
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216 | { |
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217 | static int input[3][3]={{0,0,0},{0,0,0},{0,0,0}}; //[n, n-1, n-2][axis] |
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218 | static int output[3][3]={{0,0,0},{0,0,0},{0,0,0}}; |
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219 | |||
220 | input[0][axiss] = reading; |
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221 | output[0][axiss] = ((input[0][axiss] + 2*input[1][axiss] + input[2][axiss]) / 4); |
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222 | input[2][axiss] = input[1][axiss]; |
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223 | input[1][axiss] = input[0][axiss]; |
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224 | output[2][axiss] = output[1][axiss]; |
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225 | output[1][axiss] = output[0][axiss]; |
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226 | return output[0][axiss]; |
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227 | } |
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228 | |||
229 | |||
230 | //------------------------------------------------------------------------------ |
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231 | // Name: |
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232 | // Function: |
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233 | // |
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234 | // Parameter: |
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235 | // Return: |
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236 | //------------------------------------------------------------------------------ |
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237 | int MAG_READ(char axis) |
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238 | { |
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239 | int t; |
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240 | int Data; |
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241 | char dontCare; // For a reading we don't care about |
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242 | |||
243 | if (MessungFertig == 0) |
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244 | { |
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245 | PORTD &= ~(1<<PB5); //SS auf low |
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246 | |||
247 | PORTD |= (1<<PB3); //Reset auf high |
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248 | for(t=0;t<5;t++); //5 Zyklen warten |
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249 | PORTD &= ~(1<<PB3); //Reset auf low |
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250 | |||
251 | dontCare = (int)spiTransferByte(0x40+axis); // Achse + Mess. Kommando /512 |
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252 | |||
253 | PORTD |= (1<<PB5); //SS auf high |
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254 | MessungFertig = 1; |
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255 | } |
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256 | |||
257 | if (bit_is_set(PIND,PINB4) && MessungFertig == 1) // Warten bis Messung fertig |
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258 | { |
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259 | PORTD &= ~(1<<PB5); //SS auf low |
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260 | Data=spiTransferWord(0x00); |
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261 | PORTD |= (1<<PB5); //SS auf high |
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262 | MessungFertig = 0; |
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263 | return (Data); |
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264 | } |
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265 | else return -32000; |
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266 | } |
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267 | |||
268 | //------------------------------------------------------------------------------ |
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269 | // Name: |
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270 | // Function: |
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271 | // |
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272 | // Parameter: |
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273 | // Return: |
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274 | //------------------------------------------------------------------------------ |
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275 | |||
276 | int MAG_READ_CAL(char axis) |
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277 | { |
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278 | int t; |
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279 | int Data=0; |
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280 | char dontCare; // For a reading we don't care about |
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281 | |||
282 | PORTD &= ~(1<<PB5); //SS auf low |
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283 | |||
284 | PORTD |= (1<<PB3); //Reset auf high |
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285 | for(t=0;t<5;t++); //5 Zyklen warten |
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286 | PORTD &= ~(1<<PB3); //Reset auf low |
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287 | dontCare = (int)spiTransferByte(0x40+axis); // Achse + Mess. Kommando /512 |
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288 | |||
289 | PORTD |= (1<<PB5); //SS auf high |
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290 | |||
291 | while(!bit_is_set(PIND,PINB4)) // Warten bis Messung fertig |
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292 | |||
293 | PORTD &= ~(1<<PB5); //SS auf low |
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294 | Data=spiTransferWord(0x00); |
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295 | PORTD |= (1<<PB5); //SS auf high |
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296 | |||
297 | return (Data); |
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298 | |||
299 | } |
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300 | |||
301 | |||
302 | |||
303 | //------------------------------------------------------------------------------ |
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304 | // Name: |
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305 | // Function: |
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306 | // |
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307 | // Parameter: |
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308 | // Return: |
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309 | //------------------------------------------------------------------------------ |
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310 | |||
311 | |||
312 | void ReadEepromKompassValues(void) |
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313 | { |
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314 | eeprom_read_block(&CalParaKompass, &EEPromArray[4], sizeof(CALPARAKOMPASS)); |
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315 | |||
316 | Xoffset = CalParaKompass.Xoffsetm; |
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317 | Yoffset = CalParaKompass.Yoffsetm; |
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318 | Zoffset = CalParaKompass.Zoffsetm; |
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319 | |||
320 | |||
321 | iXsf = CalParaKompass.iXsfm; |
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322 | iYsf = CalParaKompass.iYsfm; |
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323 | iZsf = CalParaKompass.iZsfm; |
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324 | |||
325 | } |
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326 | |||
327 | //------------------------------------------------------------------------------ |
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328 | // Name: |
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329 | // Function: |
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330 | // |
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331 | // Parameter: |
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332 | // Return: |
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333 | //------------------------------------------------------------------------------ |
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334 | void KalibrierKompass(void) |
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335 | { |
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336 | |||
337 | |||
338 | // The numbers here will be 16-bit signed values. |
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339 | // Positive = 0x0000 to 0x7FFF |
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340 | // Negative = 0x8000 to 0xFFFF |
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341 | int t = 0; |
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342 | int tempx=0,tempy=0,tempz=0; |
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343 | |||
344 | |||
345 | if(Poti4 > 70 && Poti4 < 100) |
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346 | { |
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347 | LED1_OFF; |
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348 | LED2_OFF; |
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349 | EEPROMWrite = 0; |
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350 | /* |
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351 | Xmax = -32768; |
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352 | Ymax = -32768; // start with lowest possible value |
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353 | Zmax = -32768; |
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354 | |||
355 | Xmin = 32767; |
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356 | Ymin = 32767; // start with highest possible value |
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357 | Zmin = 32767; |
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358 | */ |
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359 | } |
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360 | |||
361 | if(Poti4 > 70) // wenn Schalter ausgeschaltet, dann werden die LED ausgeschaltet und das GPS Steuerkommando gelöscht // (199797Kö) |
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362 | { |
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363 | |||
364 | if(Poti4 > 100 && Poti4 < 150) // X-Y Achse Kalibrieren |
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365 | { |
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366 | LED1_ON; |
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367 | Xraw=MAG_READ_CAL(1); //Kompass x-Achse auslesen |
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368 | Xraw = -Xraw; |
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369 | if(((Xraw > (XrawOld + 200)) || (Xraw < (XrawOld - 200)))) Xraw = XrawOld; //Filter gegen Spikes |
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370 | tempx = Xraw; |
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371 | Xraw = compassFilter(0,tempx); |
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372 | XrawOld = Xraw; |
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373 | |||
374 | Yraw=MAG_READ_CAL(2); //Kompass y-Achse auslesen |
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375 | Yraw =-Yraw; |
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376 | if(((Yraw > (YrawOld + 200)) || (Yraw < (YrawOld - 200)))) Yraw = YrawOld; //Filter gegen Spikes |
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377 | tempy = Yraw; |
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378 | Yraw = compassFilter(1,tempy); |
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379 | YrawOld = Yraw; |
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380 | |||
381 | if( Xraw > Xmax ) Xmax = Xraw; |
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382 | if( Xraw < Xmin ) Xmin = Xraw; |
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383 | if( Yraw > Ymax ) Ymax = Yraw; |
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384 | if( Yraw < Ymin ) Ymin = Yraw; |
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385 | |||
386 | Xoffset = ( abs(Xmax) - abs(Xmin) ) / 2; // calculate offsets |
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387 | Yoffset = ( abs(Ymax) - abs(Ymin) ) / 2; |
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388 | |||
389 | iXsf = ( abs(Xmax) + abs(Xmin)) / 2; // calculate the range |
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390 | iYsf = ( abs(Ymax) + abs(Ymin)) / 2; |
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391 | |||
392 | XrawCal = (double)(Xraw - Xoffset)/(double)iXsf; |
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393 | YrawCal = (double)(Yraw - Yoffset) /(double)iYsf; |
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394 | } |
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395 | |||
396 | if(Poti4 > 150) |
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397 | { |
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398 | LED1_OFF; |
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399 | LED2_ON; |
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400 | Zraw=MAG_READ_CAL(3); //Kompass Z-Achse auslesen |
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401 | Zraw = -Zraw; |
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402 | if(((Zraw > (ZrawOld + 200)) || (Zraw < (ZrawOld - 200)))) Zraw = ZrawOld; //Filter gegen Spikes |
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403 | tempz = Zraw; |
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404 | Zraw = compassFilter(2,tempz); |
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405 | ZrawOld = Zraw; |
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406 | |||
407 | if( Zraw > Zmax ) Zmax = Zraw; |
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408 | if( Zraw < Zmin ) Zmin = Zraw; |
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409 | |||
410 | Zoffset = ( abs(Zmax) - abs(Zmin) ) / 2; |
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411 | iZsf = ( abs(Zmax) + abs(Zmin)) / 2; |
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412 | ZrawCal = (double)(Zraw- Zoffset) / (double)iZsf; |
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413 | |||
414 | } |
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415 | |||
416 | } |
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417 | |||
418 | if(Poti4 > 170) |
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419 | { |
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420 | if (EEPROMWrite == 0) |
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421 | { |
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422 | LED2_ON; |
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423 | LED1_ON; |
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424 | CalParaKompass.Xoffsetm = Xoffset; |
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425 | CalParaKompass.Yoffsetm = Yoffset; |
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426 | CalParaKompass.Zoffsetm = Zoffset; |
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427 | |||
428 | CalParaKompass.iXsfm = iXsf; |
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429 | CalParaKompass.iYsfm = iYsf; |
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430 | CalParaKompass.iZsfm = iZsf; |
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431 | |||
432 | eeprom_write_block(&CalParaKompass, &EEPromArray[4], sizeof(CALPARAKOMPASS)); |
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433 | |||
434 | Xmax = -32768; |
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435 | Ymax = -32768; // start with lowest possible value |
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436 | Zmax = -32768; |
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437 | |||
438 | Xmin = 32767; |
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439 | Ymin = 32767; // start with highest possible value |
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440 | Zmin = 32767; |
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441 | EEPROMWrite = 1; |
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442 | } |
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443 | } |
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444 | |||
445 | } |
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446 | |||
447 | |||
448 | //------------------------------------------------------------------------------ |
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449 | // Name: |
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450 | // Function: |
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451 | // |
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452 | // Parameter: |
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453 | // Return: |
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454 | //------------------------------------------------------------------------------ |
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455 | int KompassRead(void) |
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456 | { |
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457 | /* |
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458 | Declination = 1,209° changing by 0,118 °/year |
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459 | Inclination = 64,779° changing by 0,004 °/year |
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460 | X component = 20.529,42 changing by 10,87 nT/year |
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461 | Y component = 433,23 changing by 42,54 nT/year |
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462 | Z component = 43.596,06 changing by 32,61 nT/year |
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463 | Horizontal Intensity = 20.533,99 changing by 11,8 nT/year |
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464 | Total Intensity = 48.189,85 changing by 34,53 nT/year |
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465 | */ |
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466 | /* |
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467 | Messung Real Nick |
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468 | 14 10 |
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469 | 30 20 |
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470 | 40 30 |
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471 | 52 40 |
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472 | 61 50 |
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473 | |||
474 | 30 20 roll |
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475 | 39 28 |
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476 | 19 12 |
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477 | 50 35 |
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478 | */ |
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479 | |||
480 | double azimuthrad = 0; |
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481 | double magnet = 68 /180 * M_PI; |
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482 | //Look-Up Tabelle für Korrekturfaktoren |
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483 | //float winkelkorr[5]={0.5,0.6,0.65,0.65,0.7}; |
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484 | int lookup_nick =0,lookup_roll=0; |
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485 | int tempx=0,tempy=0,tempz=0; |
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486 | |||
487 | nickgrad = -(IntegralNick / 1430); //Teiler ermittelt durch Test bestätigung durch Holger |
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488 | rollgrad = -(IntegralRoll / 1430); //Teiler ermittelt durch Test bestätigung durch Holger |
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489 | |||
490 | /* if(nickgrad > 45) nickgradkomp = 45; |
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491 | else nickgradkomp = nickgrad; |
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492 | if(nickgrad < -45) nickgradkomp = -45; |
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493 | else nickgradkomp = nickgrad; |
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494 | |||
495 | |||
496 | if(rollgrad > 45) rollgradkomp = 45; |
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497 | else rollgradkomp = rollgrad; |
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498 | if(rollgrad < -45) rollgradkomp = -45; |
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499 | else rollgradkomp = rollgrad; |
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500 | |||
501 | |||
502 | if(abs(nickgrad) > 5 && abs(nickgrad) <= 15) lookup_nick = 0; |
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503 | if(abs(nickgrad) > 15 && abs(nickgrad) <= 25) lookup_nick = 1; |
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504 | if(abs(nickgrad) > 25 && abs(nickgrad) <= 35) lookup_nick = 2; |
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505 | if(abs(nickgrad) > 35 && abs(nickgrad) <= 45) lookup_nick = 3; |
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506 | if(abs(nickgrad) > 45) lookup_nick = 4; |
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507 | |||
508 | if(abs(rollgrad) > 5 && abs(rollgrad) <= 15) lookup_roll = 0; |
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509 | if(abs(rollgrad) > 15 && abs(rollgrad) <= 25) lookup_roll = 1; |
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510 | if(abs(rollgrad) > 25 && abs(rollgrad) <= 35) lookup_roll = 2; |
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511 | if(abs(rollgrad) > 35 && abs(rollgrad) <= 45) lookup_roll = 3; |
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512 | if(abs(rollgrad) > 45) lookup_roll = 4; |
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513 | */ |
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514 | nick = (float)nickgrad/180 * M_PI;// * (float)winkelkorr[lookup_nick]*(float); |
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515 | roll = (float)rollgrad/180 * M_PI;// * (float)winkelkorr[lookup_roll]*(float); |
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516 | |||
517 | if(Poti4 > 70) // wenn Schalter ausgeschaltet, dann werden die LED ausgeschaltet und das GPS Steuerkommando gelöscht // (199797Kö) |
||
518 | { |
||
519 | KalibrierKompass(); |
||
520 | } |
||
521 | else |
||
522 | { |
||
523 | |||
524 | switch(KompassInUse) |
||
525 | { |
||
526 | case 0: |
||
527 | Xraw=MAG_READ(1); //Kompass x-Achse auslesen |
||
528 | Xraw = -Xraw; |
||
529 | if (Xraw == 32000) Xraw = XrawOld; |
||
530 | else |
||
531 | { |
||
532 | //if(((Xraw > (XrawOld + 200)) || (Xraw < (XrawOld - 200)))) Xraw = XrawOld; //Filter gegen Spikes |
||
533 | XrawOld = Xraw; |
||
534 | tempx = Xraw; |
||
535 | Xraw = compassFilter(0, tempx); |
||
536 | NewX = 1; |
||
537 | KompassInUse = 1; |
||
538 | } |
||
539 | break; |
||
540 | |||
541 | case 1: |
||
542 | Yraw=MAG_READ(2); //Kompass y-Achse auslesen |
||
543 | Yraw = -Yraw; |
||
544 | if (Yraw == 32000) Yraw = YrawOld; |
||
545 | else |
||
546 | { |
||
547 | //if(((Yraw > (YrawOld + 200)) || (Yraw < (YrawOld - 200)))) Yraw = YrawOld; //Filter gegen Spikes |
||
548 | YrawOld = Yraw; |
||
549 | tempy = Yraw; |
||
550 | Yraw = compassFilter(1, tempy); |
||
551 | NewY = 1; |
||
552 | KompassInUse = 2; |
||
553 | } |
||
554 | break; |
||
555 | |||
556 | case 2: |
||
557 | Zraw=MAG_READ(3); //Kompass z-Achse auslesen |
||
558 | Zraw = -Zraw; |
||
559 | if (Zraw == 32000) Zraw = ZrawOld; |
||
560 | else |
||
561 | { |
||
562 | //if(((Zraw > (ZrawOld + 200)) || (Zraw < (ZrawOld - 200)))) Zraw = ZrawOld; //Filter gegen Spikes |
||
563 | ZrawOld = Zraw; |
||
564 | tempz = Zraw; |
||
565 | Zraw = compassFilter(2, tempz); |
||
566 | NewZ = 1; |
||
567 | KompassInUse = 0; |
||
568 | |||
569 | } |
||
570 | break; |
||
571 | } |
||
572 | |||
573 | |||
574 | /* Xoffset =-44; |
||
575 | Yoffset =-36; |
||
576 | Zoffset =35; |
||
577 | |||
578 | iXsf =242; |
||
579 | iYsf =256; |
||
580 | iZsf =265; |
||
581 | */ |
||
582 | |||
583 | if(NewX == 1 && NewY == 1 && NewZ == 1) |
||
584 | { |
||
585 | // Kalibrierung |
||
586 | XrawCal = (double)(Xraw - Xoffset)/ (double)iXsf; |
||
587 | YrawCal = (double)(Yraw - Yoffset) / (double)iYsf; |
||
588 | ZrawCal = (double)(Zraw- Zoffset) / (double)iZsf; |
||
589 | // 1.2 Grad Missweisung durch Geographischer und Magnetischer Nordpol |
||
590 | |||
591 | |||
592 | //MagnetG = (int)sqrt((long)(XrawCal * XrawCal) + (long)(YrawCal * YrawCal) + (long)(ZrawCal * ZrawCal)); |
||
593 | |||
594 | //Kompensationsroutine |
||
595 | |||
596 | |||
597 | XEx = XrawCal * (double)cos(nick); |
||
598 | XEy = YrawCal * (double)sin(nick) * (double)sin(roll); |
||
599 | XEz = ZrawCal * (double)sin(nick) * (double)cos(roll); |
||
600 | |||
601 | YEy = YrawCal * (double)cos(roll); |
||
602 | YEz = ZrawCal * (double)sin(roll); |
||
603 | |||
604 | XE = XEx + XEy - XEz; |
||
605 | YE = YEy + YEz; |
||
606 | |||
607 | |||
608 | if(XE==0 && YE <0) azimuthgrad = 90; |
||
609 | if(XE==0 && YE >0) azimuthgrad = 270; |
||
610 | if(XE < 0) azimuthgrad = 180-(atan(YE/XE)*180/M_PI); |
||
611 | if(XE > 0 && YE < 0) azimuthgrad = -(atan(YE/XE)*180/M_PI); |
||
612 | if(XE > 0 && YE > 0) azimuthgrad = 360 - (atan(YE/XE)*180/M_PI); |
||
613 | |||
614 | azimuthold = azimuthgrad; |
||
615 | |||
616 | NewX = 0; |
||
617 | NewY = 0; |
||
618 | NewZ = 0; |
||
619 | return azimuthgrad; |
||
620 | } |
||
621 | else return azimuthold; |
||
622 | } |
||
623 | } |