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1 | ingob | 1 | /*#######################################################################################*/ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
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3 | /*#######################################################################################*/ |
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4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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5 | // + Copyright (c) 2008 Ingo Busker, Holger Buss |
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171 | ingob | 6 | // + Nur für den privaten Gebrauch / NON-COMMERCIAL USE ONLY |
1 | ingob | 7 | // + FOR NON COMMERCIAL USE ONLY |
8 | // + www.MikroKopter.com |
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9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
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11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
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12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
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13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
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14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
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15 | // + Verkauf von Luftbildaufnahmen, usw. |
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16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
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18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
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19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
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21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
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22 | // + eindeutig als Ursprung verlinkt werden |
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23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
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25 | // + Benutzung auf eigene Gefahr |
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26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
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27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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171 | ingob | 28 | // + Die Portierung oder Nutzung der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
1 | ingob | 29 | // + mit unserer Zustimmung zulässig |
30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
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32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
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34 | // + this list of conditions and the following disclaimer. |
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35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
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36 | // + from this software without specific prior written permission. |
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37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
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38 | // + for non-commercial use (directly or indirectly) |
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39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
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40 | // + with our written permission |
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41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
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42 | // + clearly linked as origin |
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171 | ingob | 43 | // + * porting the sources to other systems or using the software on other systems (except hardware from www.mikrokopter.de) is not allowed |
1 | ingob | 44 | // |
45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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55 | // + POSSIBILITY OF SUCH DAMAGE. |
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56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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57 | #include "main.h" |
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58 | |||
59 | //________________________________________________________________________________________________________________________________________ |
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60 | // Module name: fat16.c |
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61 | // Compiler used: avr-gcc 3.4.5 |
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62 | // Last Modifikation: 24.07.2007 |
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63 | // Version: 1.02 |
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64 | // Authors: Stephan Busker |
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65 | // Description: Source files for access to the synchrnous serial channel. |
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66 | // Copyright (C) 2007 Stephan Busker |
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67 | //........................................................................................................................................ |
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68 | // Functions: extern void SSC_Init(void); |
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69 | // extern u8 SSC_GetChar (void); |
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70 | // extern void SSC_PutChar (u8 Byte); |
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71 | // extern void SSC_Disable(void); |
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72 | // extern void SSC_Enable(void); |
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73 | //........................................................................................................................................ |
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74 | // ext. functions: extern u8 SDC_GetSector (unsigned long,u8 *); |
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75 | // extern u8 SDC_PutSector (unsigned long,u8 *); |
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76 | //........................................................................................................................................ |
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77 | // |
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78 | // URL: www.Mikro-Control.de |
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79 | // mailto: stephan.busker@mikro-control.de |
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80 | //________________________________________________________________________________________________________________________________________ |
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81 | |||
82 | |||
83 | |||
84 | |||
85 | //________________________________________________________________________________________________________________________________________ |
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86 | // Funtion: SSC_Init(void); |
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87 | // |
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88 | // Description: This function initialises the synchronus serial channel to the sdcard. |
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89 | // |
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90 | // |
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91 | // Returnvalue: none |
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92 | //________________________________________________________________________________________________________________________________________ |
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93 | |||
94 | void SSC_Init(void) |
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95 | { |
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96 | |||
97 | SerialPutString("SPI1 init..."); |
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98 | |||
99 | GPIO_InitTypeDef GPIO_InitStructure; |
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100 | SSP_InitTypeDef SSP_InitStructure; |
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101 | |||
102 | SCU_APBPeriphClockConfig(__SSP1 ,ENABLE); |
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103 | |||
104 | // GPIO_DeInit(GPIO2); |
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105 | GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput; |
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106 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_6; |
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107 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ; |
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108 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Enable; |
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109 | GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt2; |
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110 | GPIO_Init (GPIO3, &GPIO_InitStructure); |
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111 | |||
112 | GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput; |
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113 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; |
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114 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ; |
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115 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Disable; |
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116 | GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt1; |
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117 | GPIO_Init (GPIO5, &GPIO_InitStructure); |
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118 | |||
119 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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120 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; |
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121 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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122 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Enable; |
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123 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; |
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124 | GPIO_Init (GPIO3, &GPIO_InitStructure); |
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125 | |||
126 | SSP_DeInit(SSP1); |
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127 | SSP_StructInit(&SSP_InitStructure); |
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128 | SSP_InitStructure.SSP_FrameFormat = SSP_FrameFormat_Motorola; |
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129 | SSP_InitStructure.SSP_Mode = SSP_Mode_Master; |
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130 | SSP_InitStructure.SSP_CPHA = SSP_CPHA_1Edge; |
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131 | SSP_InitStructure.SSP_CPOL = SSP_CPOL_Low; |
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132 | // Hier muss die Baudrate noch richtig eingestellt werden (mit Prescaler) |
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133 | SSP_InitStructure.SSP_ClockRate = 5; |
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134 | SSP_InitStructure.SSP_ClockPrescaler = 8; |
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135 | SSP_Init(SSP1, &SSP_InitStructure); |
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136 | SSC_Disable(); |
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137 | SSP_Cmd(SSP1, ENABLE); |
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138 | /* MMC_Direction_REG &=~(1<<SPI_DI); // Set the direction of the ssc-port |
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139 | MMC_Direction_REG |= (1<<SPI_Clock); // _______ _______ |
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140 | MMC_Direction_REG |= (1<<SPI_DO); // CS \________________________/ |
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141 | MMC_Direction_REG |= (1<<MMC_Chip_Select); // |
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142 | MMC_Direction_REG |= (1<<SPI_SS); // ___ ___ ___ |
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143 | // clk __________/ \___/ \___/ \_________ |
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144 | // |
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145 | // ___ ___ |
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146 | // data_________/ \___________/ \___________ |
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147 | |||
148 | // initialise ssc, clock = Idel low |
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149 | // devide clock by 32 |
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150 | SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(1<<CPOL); // Enable SSC in mastermode, invert clockpolarity (idle high) |
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151 | SPSR = SPSR|(1<<SPI2X);*/ |
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152 | |||
153 | SerialPutString("ok\n\r"); |
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154 | } |
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155 | |||
156 | |||
157 | //________________________________________________________________________________________________________________________________________ |
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158 | // Funtion: SSC_GetChar(void); |
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159 | // |
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160 | // Description: This function reads one byte from the SSC |
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161 | // |
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162 | // |
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163 | // Returnvalue: the byte received. |
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164 | //________________________________________________________________________________________________________________________________________ |
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165 | |||
166 | u8 SSC_GetChar (void) |
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167 | { |
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168 | u8 Byte = 0; |
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169 | // SerialPutString("\n\rGetChar."); |
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170 | SSP_SendData(SSP1, 0xFF); |
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171 | while(SSP_GetFlagStatus(SSP1, SSP_FLAG_TxFifoEmpty) != SET); |
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172 | Byte = SSP_ReceiveData(SSP1); |
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173 | /* SPDR = 0x00; // read one byte of data from the SSC |
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174 | while(!(SPSR & (1<<SPIF))){}; // wait until the data has been read. |
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175 | Byte = SPDR; |
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176 | */ |
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177 | // sprintf(text," %02X ", Byte); SerialPutString(text);SerialPutString("done."); |
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178 | return (Byte); |
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179 | |||
180 | } |
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181 | |||
182 | //________________________________________________________________________________________________________________________________________ |
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183 | void SSC_ClearRxFifo (void) |
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184 | { |
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185 | // SerialPutString("\n\rClr RxFifo "); |
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186 | while(SSP_GetFlagStatus(SSP1, SSP_FLAG_TxFifoEmpty) != SET); |
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187 | while(SSP_GetFlagStatus(SSP1, SSP_FLAG_RxFifoNotEmpty) == SET) SSP_ReceiveData(SSP1); |
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188 | // SerialPutString("done."); |
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189 | } |
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190 | //________________________________________________________________________________________________________________________________________ |
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191 | // Funtion: SSC_PutChar(u8 Byte); |
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192 | // |
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193 | // Description: This function writes one byte to the SSC |
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194 | // |
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195 | // |
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196 | // Returnvalue: none |
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197 | //________________________________________________________________________________________________________________________________________ |
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198 | |||
199 | void SSC_PutChar (u8 Byte) |
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200 | { |
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201 | //SerialPutString("\n\rPutChar."); sprintf(text," %02X ", Byte); SerialPutString(text); |
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202 | while(SSP_GetFlagStatus(SSP1, SSP_FLAG_TxFifoNotFull) != SET); |
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203 | SSP_SendData(SSP1, Byte); |
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204 | //SerialPutString("done."); |
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205 | |||
206 | } |
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207 | |||
208 | |||
209 | //________________________________________________________________________________________________________________________________________ |
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210 | // Funtion: SSC_Disable(void); |
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211 | // |
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212 | // Description: This function enables chipselect of the sdcard (active low) |
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213 | // |
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214 | // |
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215 | // Returnvalue: none |
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216 | //________________________________________________________________________________________________________________________________________ |
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217 | |||
218 | void SSC_Disable(void) |
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219 | { |
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220 | //MMC_Write &= ~(1<<MMC_Chip_Select); // disable chipselect of the sdcard (active low). |
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221 | GPIO_WriteBit(GPIO5, GPIO_Pin_4 , Bit_SET); |
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222 | } |
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223 | |||
224 | |||
225 | |||
226 | |||
227 | //________________________________________________________________________________________________________________________________________ |
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228 | // Funtion: SSC_Enable(void); |
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229 | // |
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230 | // Description: This function disables chipselect of the sdcard (active low) |
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231 | // |
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232 | // |
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233 | // Returnvalue: none |
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234 | //________________________________________________________________________________________________________________________________________ |
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235 | |||
236 | void SSC_Enable(void) |
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237 | { |
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238 | //MMC_Write |= (1<<MMC_Chip_Select); // enable chipselect of the sdcard (active low). |
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239 | GPIO_WriteBit(GPIO5, GPIO_Pin_4 , Bit_RESET); |
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240 | } |