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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 | // + www.MikroKopter.com |
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6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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360 | holgerb | 7 | // + Software Nutzungsbedingungen (english version: see below) |
8 | // + der Fa. HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland - nachfolgend Lizenzgeber genannt - |
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9 | // + Der Lizenzgeber räumt dem Kunden ein nicht-ausschließliches, zeitlich und räumlich* unbeschränktes Recht ein, die im den |
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10 | // + Mikrocontroller verwendete Firmware für die Hardware Flight-Ctrl, Navi-Ctrl, BL-Ctrl, MK3Mag & PC-Programm MikroKopter-Tool |
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11 | // + - nachfolgend Software genannt - nur für private Zwecke zu nutzen. |
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12 | // + Der Einsatz dieser Software ist nur auf oder mit Produkten des Lizenzgebers zulässig. |
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1 | ingob | 13 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
360 | holgerb | 14 | // + Die vom Lizenzgeber gelieferte Software ist urheberrechtlich geschützt. Alle Rechte an der Software sowie an sonstigen im |
15 | // + Rahmen der Vertragsanbahnung und Vertragsdurchführung überlassenen Unterlagen stehen im Verhältnis der Vertragspartner ausschließlich dem Lizenzgeber zu. |
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16 | // + Die in der Software enthaltenen Copyright-Vermerke, Markenzeichen, andere Rechtsvorbehalte, Seriennummern sowie |
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17 | // + sonstige der Programmidentifikation dienenden Merkmale dürfen vom Kunden nicht verändert oder unkenntlich gemacht werden. |
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18 | // + Der Kunde trifft angemessene Vorkehrungen für den sicheren Einsatz der Software. Er wird die Software gründlich auf deren |
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19 | // + Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt. |
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20 | // + Die Haftung des Lizenzgebers wird - soweit gesetzlich zulässig - begrenzt in Höhe des typischen und vorhersehbaren |
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21 | // + Schadens. Die gesetzliche Haftung bei Personenschäden und nach dem Produkthaftungsgesetz bleibt unberührt. Dem Lizenzgeber steht jedoch der Einwand |
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22 | // + des Mitverschuldens offen. |
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23 | // + Der Kunde trifft angemessene Vorkehrungen für den Fall, dass die Software ganz oder teilweise nicht ordnungsgemäß arbeitet. |
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24 | // + Er wird die Software gründlich auf deren Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt. |
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25 | // + Der Kunde wird er seine Daten vor Einsatz der Software nach dem Stand der Technik sichern. |
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26 | // + Der Kunde ist darüber unterrichtet, dass der Lizenzgeber seine Daten im zur Vertragsdurchführung erforderlichen Umfang |
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27 | // + und auf Grundlage der Datenschutzvorschriften erhebt, speichert, verarbeitet und, sofern notwendig, an Dritte übermittelt. |
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28 | // + *) Die räumliche Nutzung bezieht sich nur auf den Einsatzort, nicht auf die Reichweite der programmierten Software. |
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29 | // + #### ENDE DER NUTZUNGSBEDINGUNGEN ####' |
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30 | // + Hinweis: Informationen über erweiterte Nutzungsrechte (wie z.B. Nutzung für nicht-private Zwecke) sind auf Anfrage per Email an info(@)hisystems.de verfügbar. |
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1 | ingob | 31 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
360 | holgerb | 32 | // + Software LICENSING TERMS |
1 | ingob | 33 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
360 | holgerb | 34 | // + of HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland, Germany - the Licensor - |
35 | // + The Licensor grants the customer a non-exclusive license to use the microcontroller firmware of the Flight-Ctrl, Navi-Ctrl, BL-Ctrl, and MK3Mag hardware |
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36 | // + (the Software) exclusively for private purposes. The License is unrestricted with respect to time and territory*. |
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37 | // + The Software may only be used with the Licensor's products. |
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38 | // + The Software provided by the Licensor is protected by copyright. With respect to the relationship between the parties to this |
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39 | // + agreement, all rights pertaining to the Software and other documents provided during the preparation and execution of this |
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40 | // + agreement shall be the property of the Licensor. |
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41 | // + The information contained in the Software copyright notices, trademarks, other legal reservations, serial numbers and other |
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42 | // + features that can be used to identify the program may not be altered or defaced by the customer. |
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43 | // + The customer shall be responsible for taking reasonable precautions |
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44 | // + for the safe use of the Software. The customer shall test the Software thoroughly regarding its suitability for the |
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45 | // + intended purpose before implementing it for actual operation. The Licensor's liability shall be limited to the extent of typical and |
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46 | // + foreseeable damage to the extent permitted by law, notwithstanding statutory liability for bodily injury and product |
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47 | // + liability. However, the Licensor shall be entitled to the defense of contributory negligence. |
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48 | // + The customer will take adequate precautions in the case, that the software is not working properly. The customer will test |
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49 | // + the software for his purpose before any operational usage. The customer will backup his data before using the software. |
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50 | // + The customer understands that the Licensor collects, stores and processes, and, where required, forwards, customer data |
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51 | // + to third parties to the extent necessary for executing the agreement, subject to applicable data protection and privacy regulations. |
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52 | // + *) The territory aspect only refers to the place where the Software is used, not its programmed range. |
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53 | // + #### END OF LICENSING TERMS #### |
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54 | // + Note: For information on license extensions (e.g. commercial use), please contact us at info(@)hisystems.de. |
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1 | ingob | 55 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
24 | StephanB | 56 | #include <stdio.h> |
57 | #include <string.h> |
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58 | #include "91x_lib.h" |
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41 | ingob | 59 | #include "uart1.h" |
24 | StephanB | 60 | #include "sdc.h" |
61 | #include "ssc.h" |
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119 | killagreg | 62 | #include "timer1.h" |
1 | ingob | 63 | #include "main.h" |
24 | StephanB | 64 | #include "crc16.h" |
1 | ingob | 65 | |
66 | //________________________________________________________________________________________________________________________________________ |
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24 | StephanB | 67 | // Module name: sdc.c |
1 | ingob | 68 | // Compiler used: avr-gcc 3.4.5 |
24 | StephanB | 69 | // Last Modifikation: 08.06.2008 |
70 | // Version: 1.07 |
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71 | // Authors: Stephan Busker, Gregor Stobrawa |
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72 | // Description: Source files for connecting to an sd-card using the SSC |
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1 | ingob | 73 | // |
74 | //........................................................................................................................................ |
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24 | StephanB | 75 | // Functions: SD_Result_t SDC_init(void); |
76 | // u8 SDC_PutCommand (u8 *cmd); |
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77 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
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78 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
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1 | ingob | 79 | // |
80 | ////........................................................................................................................................ |
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81 | // ext. functions: extern void SSC_Init(void); |
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24 | StephanB | 82 | // extern u8 SSC_GetChar (void); |
1 | ingob | 83 | // extern void SSC_PutChar (u8); |
84 | // extern void SSC_Enable(void); |
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85 | // extern void SSC_Disable(void); |
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24 | StephanB | 86 | // extern void SSC_ClearRxFifo(); |
1 | ingob | 87 | //........................................................................................................................................ |
88 | // |
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89 | // URL: www.Mikro-Control.de |
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90 | // mailto: stephan.busker@mikro-control.de |
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91 | //________________________________________________________________________________________________________________________________________ |
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92 | |||
93 | |||
94 | |||
24 | StephanB | 95 | #define CMD_GO_IDLE_STATE 0x00 /* CMD00: response R1 */ |
96 | #define CMD_SEND_OP_COND 0x01 /* CMD01: response R1 */ |
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97 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
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98 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
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99 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
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100 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
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101 | #define CMD_SET_BLOCKLEN 0x10 /* CMD16: arg0[31:0]: block length, response R1*/ |
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102 | #define CMD_READ_SINGLE_BLOCK 0x11 /* CMD17: arg0[31:0]: data address, response R1 */ |
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103 | #define CMD_WRITE_SINGLE_BLOCK 0x18 /* CMD24: arg0[31:0]: data address, response R1 */ |
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104 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
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105 | #define CMD_READ_OCR 0x3A /* CMD58: response R3 */ |
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106 | #define CMD_CRC_ON_OFF 0x3B /* CMD59: arg0[31:1]: stuff bits, arg0[0:0]: crc option, response R1 */ |
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107 | #define ACMD_SEND_OP_COND 0x29 /* ACMD41: arg0[31]: stuff bits, arg0[30]: HCS, arg0[29:0] stuff bits*, response R1 */ |
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1 | ingob | 108 | |
24 | StephanB | 109 | #define R1_NO_ERR 0x00 |
110 | #define R1_IDLE_STATE 0x01 |
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111 | #define R1_ERASE_RESET 0x02 |
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112 | #define R1_ILLEGAL_CMD 0x04 |
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113 | #define R1_COM_CRC_ERR 0x08 |
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114 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
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115 | #define R1_ADDRESS_ERR 0x20 |
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116 | #define R1_PARAMETER_ERR 0x40 |
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117 | #define R1_BAD_RESPONSE 0x80 |
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118 | |||
119 | #define R2_NO_ERR 0x00 |
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120 | #define R2_CARD_LOCKED 0x01 |
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121 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
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122 | #define R2_UNKOWN_ERR 0x04 |
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123 | #define R2_CARD_CTRL_ERR 0x08 |
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124 | #define R2_CARD_ECC_ERR 0x10 |
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125 | #define R2_WRITE_PROT_ERR 0x20 |
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126 | #define R2_ERASE_PARAM_ERR 0x40 |
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127 | #define R2_OUT_OF_RANGE_ERR 0x80 |
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128 | |||
129 | #define DATA_START_TOKEN 0xFE |
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130 | #define DATA_RESPONSE_MASK 0x1F |
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131 | #define DATA_RESPONSE_OK 0x05 |
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132 | #define DATA_RESPONSE_CRC_ERR 0x0B |
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133 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
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134 | |||
135 | volatile SDCardInfo_t SDCardInfo; |
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136 | |||
137 | |||
1 | ingob | 138 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 139 | // Function: CRC7(u8* cmd, u32 len); |
1 | ingob | 140 | // |
24 | StephanB | 141 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
1 | ingob | 142 | // |
143 | // |
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24 | StephanB | 144 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
1 | ingob | 145 | //________________________________________________________________________________________________________________________________________ |
146 | |||
24 | StephanB | 147 | u8 CRC7(u8 * cmd, u32 len) |
1 | ingob | 148 | { |
24 | StephanB | 149 | u8 i, a; |
150 | u8 crc, Data; |
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1 | ingob | 151 | |
24 | StephanB | 152 | crc = 0; // init CRC buffer |
153 | for (a = 0; a < len ;a++) // for every byte in the msg |
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154 | { |
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155 | Data = cmd[a]; |
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156 | for (i=0;i<8;i++) // for every bit in the byte |
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157 | { |
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158 | crc <<= 1; // shift crc |
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159 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
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160 | Data <<= 1; // shift data for next bit |
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161 | } |
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162 | } |
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163 | crc = (crc<<1)|1; // set terminating bit to 1 |
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164 | return(crc); |
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165 | } |
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1 | ingob | 166 | |
41 | ingob | 167 | u8 SDC_WaitForBusy(u32 timeout) |
24 | StephanB | 168 | { |
169 | u8 rsp = 0; |
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41 | ingob | 170 | u32 timestamp = 0; |
1 | ingob | 171 | |
24 | StephanB | 172 | SSC_ClearRxFifo(); |
173 | SSC_Enable(); // enable chipselect. |
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41 | ingob | 174 | timestamp = SetDelay(timeout); |
24 | StephanB | 175 | do |
1 | ingob | 176 | { |
24 | StephanB | 177 | rsp = SSC_GetChar(); |
41 | ingob | 178 | if(CheckDelay(timestamp)) break; |
362 | holgerb | 179 | }while(rsp != 0xFF && (SD_WatchDog)); // wait while card is busy (data out low) |
24 | StephanB | 180 | return(rsp); |
181 | } |
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182 | |||
183 | |||
184 | |||
185 | //________________________________________________________________________________________________________________________________________ |
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186 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
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187 | // |
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188 | // Description: This function send a command frame to the SD-Card in spi-mode. |
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189 | // |
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190 | // |
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191 | // Returnvalue: The function returns the first response byte like for R1 commands |
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192 | //________________________________________________________________________________________________________________________________________ |
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193 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
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194 | { |
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195 | u8 r1; |
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41 | ingob | 196 | u16 timeout = 0; |
24 | StephanB | 197 | u16 a; |
198 | u8 cmd[6]; |
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199 | |||
200 | SSC_ClearRxFifo(); // clear the rx fifo |
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201 | SSC_Enable(); // enable chipselect. |
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41 | ingob | 202 | SDC_WaitForBusy(500); // wait 500ms until card is busy |
24 | StephanB | 203 | SSC_ClearRxFifo(); // clear the rx fifo |
204 | SSC_GetChar(); // dummy to sync |
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205 | |||
206 | cmd[0] = 0x40|CmdNo; // set command index |
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207 | cmd[1] = (arg & 0xFF000000)>>24; |
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208 | cmd[2] = (arg & 0x00FF0000)>>16; |
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209 | cmd[3] = (arg & 0x0000FF00)>>8; |
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210 | cmd[4] = (arg & 0x000000FF); |
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211 | cmd[5] = CRC7(cmd, 5); // update checksum |
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212 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
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213 | { |
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214 | SSC_PutChar(cmd[a]); |
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1 | ingob | 215 | } |
24 | StephanB | 216 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
41 | ingob | 217 | |
24 | StephanB | 218 | do |
1 | ingob | 219 | { |
24 | StephanB | 220 | r1 = SSC_GetChar(); // get byte from sd-card |
41 | ingob | 221 | if (timeout++ >500) break; |
362 | holgerb | 222 | }while(r1 == 0xFF && (SD_WatchDog)); // wait for the response byte from sd-card. |
24 | StephanB | 223 | return(r1); |
1 | ingob | 224 | } |
225 | |||
226 | |||
24 | StephanB | 227 | //________________________________________________________________________________________________________________________________________ |
228 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
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41 | ingob | 229 | // |
24 | StephanB | 230 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
231 | // |
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232 | // |
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233 | // Returnvalue: The function returns the first response byte like for R1 commands |
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234 | //________________________________________________________________________________________________________________________________________ |
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235 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
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236 | { |
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237 | u8 r1 = 0xFF; |
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238 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
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239 | if(r1 & R1_BAD_RESPONSE) return(r1); |
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240 | r1 = SDC_SendCMDR1(CmdNo, arg); |
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241 | return(r1); |
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242 | } |
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1 | ingob | 243 | |
244 | |||
245 | //________________________________________________________________________________________________________________________________________ |
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24 | StephanB | 246 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
1 | ingob | 247 | // |
24 | StephanB | 248 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
1 | ingob | 249 | // |
250 | // |
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24 | StephanB | 251 | // Returnvalue: SD_Result_t |
1 | ingob | 252 | //________________________________________________________________________________________________________________________________________ |
253 | |||
24 | StephanB | 254 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
1 | ingob | 255 | { |
24 | StephanB | 256 | u8 rsp; |
41 | ingob | 257 | u16 a, crc16; |
146 | killagreg | 258 | u32 timeout; |
24 | StephanB | 259 | SD_Result_t result = SD_ERROR_UNKNOWN; |
1 | ingob | 260 | |
365 | holgerb | 261 | if(SDCardInfo.Valid == 1) |
262 | { |
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24 | StephanB | 263 | // send the command |
264 | rsp = SDC_SendCMDR1(CmdNo, addr); |
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265 | if (rsp != R1_NO_ERR) |
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1 | ingob | 266 | { |
24 | StephanB | 267 | result = SD_ERROR_BAD_RESPONSE; |
268 | goto end; |
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1 | ingob | 269 | } |
270 | SSC_ClearRxFifo(); |
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146 | killagreg | 271 | timeout = SetDelay(500); |
24 | StephanB | 272 | do |
1 | ingob | 273 | { |
24 | StephanB | 274 | rsp = SSC_GetChar(); |
146 | killagreg | 275 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
1 | ingob | 276 | { |
24 | StephanB | 277 | result = SD_ERROR_READ_DATA; |
278 | goto end; |
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1 | ingob | 279 | } |
362 | holgerb | 280 | }while(rsp != DATA_START_TOKEN && (SD_WatchDog)); |
24 | StephanB | 281 | // data start token received |
282 | for (a = 0; a < len; a++) // read the block from the SSC |
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283 | { |
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284 | Buffer[a] = SSC_GetChar(); |
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1 | ingob | 285 | } |
24 | StephanB | 286 | // Read two bytes CRC16-Data checksum |
146 | killagreg | 287 | crc16 = SSC_GetChar(); // highbyte first |
41 | ingob | 288 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
289 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
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364 | ingob | 290 | else */ |
291 | result = SD_SUCCESS; |
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365 | holgerb | 292 | } |
24 | StephanB | 293 | end: |
294 | if(result != SD_SUCCESS) |
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295 | { |
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296 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
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110 | killagreg | 297 | UART1_PutString(text); |
24 | StephanB | 298 | } |
299 | return(result); |
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300 | } |
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1 | ingob | 301 | |
24 | StephanB | 302 | |
303 | //________________________________________________________________________________________________________________________________________ |
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304 | // Function: SDC_PrintCID(u8 * pCID); |
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305 | // |
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306 | // Description: This function prints the CIS register in a human readable format. |
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307 | // |
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308 | // |
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309 | // Returnvalue: the function returns nothing |
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310 | //________________________________________________________________________________________________________________________________________ |
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311 | |||
312 | void SDC_PrintCID(u8 * pCID) |
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313 | { |
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314 | u8 pn[6]; |
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315 | u16 temp1, temp2; |
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316 | |||
41 | ingob | 317 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
110 | killagreg | 318 | UART1_PutString(text); |
24 | StephanB | 319 | memcpy(pn, &pCID[1], 2); |
320 | pn[2] = '\0'; // terminate string |
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41 | ingob | 321 | sprintf(text, " Application ID: %s\r\n",pn); |
110 | killagreg | 322 | UART1_PutString(text); |
24 | StephanB | 323 | memcpy(pn, &pCID[3], 5); |
324 | pn[5] = '\0'; // terminate string |
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41 | ingob | 325 | sprintf(text, " Product Name: %s\r\n",pn); |
110 | killagreg | 326 | UART1_PutString(text); |
41 | ingob | 327 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
110 | killagreg | 328 | UART1_PutString(text); |
329 | UART1_PutString(" Serial No.: "); |
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24 | StephanB | 330 | for(temp1 = 0; temp1<4; temp1++) |
331 | { |
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332 | sprintf(text,"%02X", pCID[9+temp1]); |
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110 | killagreg | 333 | UART1_PutString(text); |
24 | StephanB | 334 | } |
110 | killagreg | 335 | UART1_PutString("\r\n"); |
24 | StephanB | 336 | temp1 = pCID[14] & 0x0F; // month |
337 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
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41 | ingob | 338 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
110 | killagreg | 339 | UART1_PutString(text); |
1 | ingob | 340 | } |
341 | |||
24 | StephanB | 342 | //________________________________________________________________________________________________________________________________________ |
343 | // Funtion: SDC_GetCID(u8 * pCID); |
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344 | // |
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345 | // Description: This function reads the CIS register form the sd card in spi mode. |
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346 | // |
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347 | // |
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348 | // Returnvalue: the function returns error state |
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349 | //________________________________________________________________________________________________________________________________________ |
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1 | ingob | 350 | |
24 | StephanB | 351 | SD_Result_t SDC_GetCID(u8 * pCID) |
352 | { |
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353 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
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354 | } |
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1 | ingob | 355 | |
24 | StephanB | 356 | //________________________________________________________________________________________________________________________________________ |
357 | // Funtion: SDC_GetCSD(u8 * pCSD); |
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358 | // |
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359 | // Description: This function reads the CSD register form the sd card in spi mode. |
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360 | // |
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361 | // |
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362 | // Returnvalue: the function returns error state |
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363 | //________________________________________________________________________________________________________________________________________ |
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1 | ingob | 364 | |
24 | StephanB | 365 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
366 | { |
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367 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
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368 | } |
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369 | |||
370 | |||
1 | ingob | 371 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 372 | // Funtion: SDC_Init(void); |
1 | ingob | 373 | // |
24 | StephanB | 374 | // Description: This function initialises the SDCard to spi-mode. |
1 | ingob | 375 | // |
376 | // |
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24 | StephanB | 377 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
1 | ingob | 378 | //________________________________________________________________________________________________________________________________________ |
379 | |||
24 | StephanB | 380 | SD_Result_t SDC_Init(void) |
1 | ingob | 381 | { |
41 | ingob | 382 | u32 timeout = 0; |
24 | StephanB | 383 | u8 rsp[6]; // SD-SPI response buffer |
384 | SD_Result_t result = SD_ERROR_UNKNOWN; |
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385 | |||
386 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
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387 | { |
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110 | killagreg | 388 | UART1_PutString("\r\n SSC init..."); |
24 | StephanB | 389 | SSC_Init(); |
110 | killagreg | 390 | UART1_PutString("ok"); |
41 | ingob | 391 | |
110 | killagreg | 392 | UART1_PutString("\r\n SDC init..."); |
24 | StephanB | 393 | SDCardInfo.Valid = 0; |
394 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
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395 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
||
396 | mode, CS shall be held to high during 74 clock cycles. */ |
||
397 | SSC_Disable(); // set SD_CS high |
||
398 | SSC_ClearRxFifo(); // clear the rx fifo |
||
1 | ingob | 399 | |
41 | ingob | 400 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
24 | StephanB | 401 | { |
402 | SSC_PutChar(0xFF); |
||
403 | } |
||
404 | |||
405 | // switch to idle state |
||
406 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
||
407 | { |
||
41 | ingob | 408 | if (timeout++ > 20) |
24 | StephanB | 409 | { |
110 | killagreg | 410 | UART1_PutString("reset timeout"); |
24 | StephanB | 411 | result = SD_ERROR_RESET; |
412 | goto end; |
||
413 | } |
||
414 | } |
||
415 | // enable crc feature |
||
416 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
||
417 | { |
||
41 | ingob | 418 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
110 | killagreg | 419 | UART1_PutString(text); |
24 | StephanB | 420 | result = SD_ERROR_BAD_RESPONSE; |
421 | goto end; |
||
422 | }*/ |
||
423 | // check for card hw version |
||
424 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
||
425 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
||
426 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
||
427 | if(rsp[0] & R1_BAD_RESPONSE) |
||
428 | { |
||
41 | ingob | 429 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
110 | killagreg | 430 | UART1_PutString(text); |
24 | StephanB | 431 | result = SD_ERROR_BAD_RESPONSE; |
432 | goto end; |
||
433 | } |
||
434 | if(rsp[0] & R1_ILLEGAL_CMD) |
||
435 | { |
||
436 | //Ver1.X SD Memory Card or not a SD Memory Card |
||
437 | SDCardInfo.Version = VER_1X; |
||
438 | } |
||
439 | else |
||
440 | { |
||
441 | // Ver2.00 or later SD Memory Card |
||
442 | // reading the remaining bytes of the R7 response |
||
443 | SDCardInfo.Version = VER_20; |
||
41 | ingob | 444 | for(timeout = 1; timeout < 5; timeout++) |
24 | StephanB | 445 | { |
41 | ingob | 446 | rsp[timeout] = SSC_GetChar(); |
24 | StephanB | 447 | } |
448 | //check pattern |
||
449 | if(rsp[4]!= 0xAA) |
||
450 | { |
||
110 | killagreg | 451 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
24 | StephanB | 452 | result = SD_ERROR_BAD_RESPONSE; |
453 | goto end; |
||
454 | } |
||
455 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
||
456 | { |
||
457 | |||
110 | killagreg | 458 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
24 | StephanB | 459 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
460 | goto end; |
||
461 | } |
||
462 | } |
||
463 | |||
464 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
||
465 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
||
466 | if(rsp[0] & R1_BAD_RESPONSE) |
||
467 | { |
||
41 | ingob | 468 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
110 | killagreg | 469 | UART1_PutString(text); |
24 | StephanB | 470 | result = SD_ERROR_BAD_RESPONSE; |
471 | goto end; |
||
472 | } |
||
473 | if(rsp[0] & R1_ILLEGAL_CMD) |
||
474 | { |
||
110 | killagreg | 475 | UART1_PutString("Not an SD-CARD."); |
24 | StephanB | 476 | result = SD_ERROR_NO_SDCARD; |
477 | goto end; |
||
478 | } |
||
479 | // read 4 bytes of OCR register |
||
41 | ingob | 480 | for(timeout = 1; timeout < 5; timeout++) |
24 | StephanB | 481 | { |
41 | ingob | 482 | rsp[timeout] = SSC_GetChar(); |
24 | StephanB | 483 | } |
484 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
||
485 | if((rsp[2] & 0x30) != 0x30) |
||
486 | { |
||
487 | // supply voltage is not supported by sd-card |
||
110 | killagreg | 488 | UART1_PutString("Card is incompatible to 3.3V."); |
24 | StephanB | 489 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
490 | goto end; |
||
491 | } |
||
492 | |||
493 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
||
41 | ingob | 494 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
24 | StephanB | 495 | do |
496 | { |
||
497 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
||
498 | if(rsp[0] & R1_BAD_RESPONSE) |
||
499 | { |
||
41 | ingob | 500 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
110 | killagreg | 501 | UART1_PutString(text); |
24 | StephanB | 502 | result = SD_ERROR_BAD_RESPONSE; |
503 | goto end; |
||
504 | } |
||
41 | ingob | 505 | if(CheckDelay(timeout)) |
24 | StephanB | 506 | { |
110 | killagreg | 507 | UART1_PutString("Init timeout."); |
24 | StephanB | 508 | result = SD_ERROR_INITIALIZE; |
509 | goto end; |
||
510 | } |
||
511 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
||
512 | |||
513 | if(rsp[0] != R1_NO_ERR) |
||
514 | { |
||
110 | killagreg | 515 | UART1_PutString("Init error."); |
24 | StephanB | 516 | result = SD_ERROR_INITIALIZE; |
517 | goto end; |
||
518 | } |
||
519 | /* set block size to 512 bytes */ |
||
520 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
||
521 | { |
||
110 | killagreg | 522 | UART1_PutString("Error setting block length to 512."); |
24 | StephanB | 523 | result = SD_ERROR_SET_BLOCKLEN; |
524 | goto end; |
||
525 | } |
||
41 | ingob | 526 | |
527 | //SSC_Disable(); // set SD_CS high |
||
24 | StephanB | 528 | // here is the right place to inrease the SPI boud rate to maximum |
529 | //SSC_Enable(); // set SD_CS high |
||
530 | |||
531 | // read CID register |
||
532 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
||
533 | if(result != SD_SUCCESS) |
||
534 | { |
||
110 | killagreg | 535 | UART1_PutString("Error reading CID.\r\n"); |
24 | StephanB | 536 | goto end; |
537 | } |
||
1 | ingob | 538 | |
24 | StephanB | 539 | // read CSD register |
540 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
||
541 | if(result != SD_SUCCESS) |
||
542 | { |
||
110 | killagreg | 543 | UART1_PutString("Error reading CSD."); |
24 | StephanB | 544 | goto end; |
545 | } |
||
1 | ingob | 546 | |
110 | killagreg | 547 | UART1_PutString("ok\r\n"); |
24 | StephanB | 548 | |
549 | u8 c_size_mult, read_bl_len; |
||
550 | u32 c_size; |
||
551 | |||
552 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
||
553 | { |
||
554 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
||
555 | |||
556 | /* |
||
557 | memory capacity = BLOCKNR * BLOCK_LEN |
||
558 | BLOCKNR = (C_SIZE+1) * MULT |
||
559 | MULT = 2^(C_SIZE_MULT+2) |
||
560 | BLOCK_LEN = 2^READ_BL_LEN |
||
561 | |||
562 | C_SIZE is 12 bits [73:62] in CSD register |
||
563 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
||
564 | READ_BL_LEN is 4 bits [83:80] in CSD register |
||
565 | */ |
||
566 | |||
567 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
||
568 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
||
569 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
||
570 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
||
571 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
||
572 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
||
573 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
||
574 | break; |
||
575 | |||
576 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
||
577 | |||
578 | /* |
||
579 | memory capacity = (C_SIZE+1) * 512K byte |
||
580 | C_SIZE is 22 bits [69:48] in CSR register |
||
581 | */ |
||
582 | |||
583 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
||
584 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
||
585 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
||
586 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
||
41 | ingob | 587 | break; |
588 | |||
589 | default: //unknown CSD Version |
||
24 | StephanB | 590 | SDCardInfo.Capacity = 0; |
591 | break; |
||
592 | } |
||
593 | |||
594 | switch(SDCardInfo.Version) |
||
595 | { |
||
596 | case VER_1X: |
||
149 | killagreg | 597 | UART1_PutString(" SD-CARD V1.x"); |
24 | StephanB | 598 | break; |
599 | case VER_20: |
||
149 | killagreg | 600 | UART1_PutString(" SD-CARD V2.0 or later"); |
24 | StephanB | 601 | default: |
602 | break; |
||
603 | } |
||
604 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
||
149 | killagreg | 605 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
110 | killagreg | 606 | UART1_PutString(text); |
24 | StephanB | 607 | |
41 | ingob | 608 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
24 | StephanB | 609 | SDCardInfo.Valid = 1; |
610 | // jump point for error condition before |
||
611 | end: |
||
612 | SSC_Disable(); |
||
613 | } |
||
614 | else |
||
1 | ingob | 615 | { |
24 | StephanB | 616 | SSC_Deinit(); |
617 | SDCardInfo.Valid = 0; |
||
618 | result = SD_ERROR_NOCARD; |
||
110 | killagreg | 619 | UART1_PutString("No Card in Slot."); |
1 | ingob | 620 | } |
24 | StephanB | 621 | return(result); |
1 | ingob | 622 | } |
623 | |||
624 | |||
625 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 626 | // Funtion: SDC_Deinit(void); |
1 | ingob | 627 | // |
24 | StephanB | 628 | // Description: This function deinitialises the SDCard interface. |
1 | ingob | 629 | // |
630 | // |
||
324 | killagreg | 631 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
1 | ingob | 632 | //________________________________________________________________________________________________________________________________________ |
633 | |||
24 | StephanB | 634 | SD_Result_t SDC_Deinit(void) |
635 | { |
||
110 | killagreg | 636 | UART1_PutString("\r\n SDC deinit..."); |
364 | ingob | 637 | // SSC_Deinit(); |
1 | ingob | 638 | |
24 | StephanB | 639 | SDCardInfo.Valid = 0; |
640 | SDCardInfo.Capacity = 0; |
||
641 | SDCardInfo.Version = VER_UNKNOWN; |
||
1 | ingob | 642 | |
110 | killagreg | 643 | UART1_PutString("ok"); |
24 | StephanB | 644 | return(SD_SUCCESS); |
1 | ingob | 645 | } |
646 | |||
647 | |||
648 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 649 | // Funtion: SDC_PutSector(void); |
1 | ingob | 650 | // |
24 | StephanB | 651 | // Description: This function writes one sector of data to the SSC |
1 | ingob | 652 | // |
653 | // |
||
24 | StephanB | 654 | // Returnvalue: SD_Result_t |
1 | ingob | 655 | //________________________________________________________________________________________________________________________________________ |
656 | |||
24 | StephanB | 657 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
658 | { |
||
659 | u8 rsp; |
||
41 | ingob | 660 | u16 a, crc16; |
24 | StephanB | 661 | u16 timeout = 0; |
662 | SD_Result_t result = SD_ERROR_UNKNOWN; |
||
663 | |||
664 | addr = addr << 9; // convert sectoradress to byteadress |
||
665 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
||
666 | if (rsp != R1_NO_ERR) |
||
1 | ingob | 667 | { |
24 | StephanB | 668 | result = SD_ERROR_BAD_RESPONSE; |
669 | goto end; |
||
1 | ingob | 670 | } |
671 | SSC_ClearRxFifo(); |
||
24 | StephanB | 672 | for (a=0;a<20;a++) // at least one byte |
1 | ingob | 673 | { |
24 | StephanB | 674 | SSC_GetChar(); |
1 | ingob | 675 | } |
41 | ingob | 676 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
24 | StephanB | 677 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
1 | ingob | 678 | |
24 | StephanB | 679 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
680 | { |
||
681 | SSC_PutChar(Buffer[a]); |
||
682 | } |
||
683 | // write two bytes of crc16 to the sdcard |
||
41 | ingob | 684 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
685 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
||
24 | StephanB | 686 | SSC_ClearRxFifo(); |
687 | do // wait for data response token |
||
688 | { |
||
689 | rsp = SSC_GetChar(); |
||
41 | ingob | 690 | if(timeout++ > 500) |
691 | { |
||
692 | result = SD_ERROR_TIMEOUT; |
||
693 | goto end; |
||
694 | } |
||
24 | StephanB | 695 | }while((rsp & 0x11) != 0x01 ); |
324 | killagreg | 696 | |
24 | StephanB | 697 | // analyse data response token |
698 | switch(rsp & DATA_RESPONSE_MASK) |
||
699 | { |
||
700 | case DATA_RESPONSE_OK: |
||
701 | result = SD_SUCCESS; |
||
702 | break; |
||
703 | case DATA_RESPONSE_CRC_ERR: |
||
704 | result = SD_ERROR_CRC_DATA; |
||
705 | goto end; |
||
706 | break; |
||
707 | case DATA_RESPONSE_WRITE_ERR: |
||
708 | result = SD_ERROR_WRITE_DATA; |
||
709 | goto end; |
||
710 | break; |
||
711 | default: |
||
712 | result = SD_ERROR_UNKNOWN; |
||
713 | goto end; |
||
714 | break; |
||
715 | |||
716 | } |
||
41 | ingob | 717 | // wait 2 seconds until the sdcard is busy. |
718 | rsp = SDC_WaitForBusy(2000); |
||
24 | StephanB | 719 | if(rsp != 0xFF) |
720 | { |
||
41 | ingob | 721 | result = SD_ERROR_TIMEOUT; |
722 | goto end; |
||
24 | StephanB | 723 | } |
41 | ingob | 724 | |
24 | StephanB | 725 | // check card status |
726 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
||
41 | ingob | 727 | // first byte of R2 response is like R1 response |
24 | StephanB | 728 | if(rsp != R1_NO_ERR) |
729 | { |
||
730 | result = SD_ERROR_BAD_RESPONSE; |
||
41 | ingob | 731 | SSC_GetChar(); // read out 2nd byte |
24 | StephanB | 732 | goto end; |
733 | } |
||
734 | // 2nd byte of r2 response |
||
735 | rsp = SSC_GetChar(); |
||
736 | if(rsp != R2_NO_ERR) |
||
737 | { |
||
738 | result = SD_ERROR_WRITE_DATA; |
||
739 | SSC_GetChar(); |
||
740 | goto end; |
||
741 | } |
||
742 | end: |
||
743 | if(result != SD_SUCCESS) |
||
744 | { |
||
745 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
||
110 | killagreg | 746 | UART1_PutString(text); |
24 | StephanB | 747 | } |
362 | holgerb | 748 | |
24 | StephanB | 749 | return(result); |
41 | ingob | 750 | } |
24 | StephanB | 751 | |
752 | |||
753 | //________________________________________________________________________________________________________________________________________ |
||
754 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
||
755 | // |
||
756 | // Description: This function reads one sector of data from the SSC |
||
757 | // |
||
758 | // |
||
759 | // Returnvalue: SD_Result_t |
||
760 | //________________________________________________________________________________________________________________________________________ |
||
761 | |||
762 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
||
763 | { |
||
764 | addr = addr << 9; // convert sectoradress to byteadress |
||
765 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
||
1 | ingob | 766 | } |
767 | |||
768 | |||
769 |