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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 | |
384 | ingob | 66 | |
67 | |||
1 | ingob | 68 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 69 | // Module name: sdc.c |
1 | ingob | 70 | // Compiler used: avr-gcc 3.4.5 |
24 | StephanB | 71 | // Last Modifikation: 08.06.2008 |
72 | // Version: 1.07 |
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73 | // Authors: Stephan Busker, Gregor Stobrawa |
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74 | // Description: Source files for connecting to an sd-card using the SSC |
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1 | ingob | 75 | // |
76 | //........................................................................................................................................ |
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24 | StephanB | 77 | // Functions: SD_Result_t SDC_init(void); |
78 | // u8 SDC_PutCommand (u8 *cmd); |
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79 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
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80 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
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1 | ingob | 81 | // |
82 | ////........................................................................................................................................ |
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83 | // ext. functions: extern void SSC_Init(void); |
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24 | StephanB | 84 | // extern u8 SSC_GetChar (void); |
1 | ingob | 85 | // extern void SSC_PutChar (u8); |
86 | // extern void SSC_Enable(void); |
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87 | // extern void SSC_Disable(void); |
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24 | StephanB | 88 | // extern void SSC_ClearRxFifo(); |
1 | ingob | 89 | //........................................................................................................................................ |
90 | // |
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91 | // URL: www.Mikro-Control.de |
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92 | // mailto: stephan.busker@mikro-control.de |
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93 | //________________________________________________________________________________________________________________________________________ |
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94 | |||
95 | |||
96 | |||
24 | StephanB | 97 | #define CMD_GO_IDLE_STATE 0x00 /* CMD00: response R1 */ |
98 | #define CMD_SEND_OP_COND 0x01 /* CMD01: response R1 */ |
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99 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
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100 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
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101 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
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102 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
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103 | #define CMD_SET_BLOCKLEN 0x10 /* CMD16: arg0[31:0]: block length, response R1*/ |
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104 | #define CMD_READ_SINGLE_BLOCK 0x11 /* CMD17: arg0[31:0]: data address, response R1 */ |
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105 | #define CMD_WRITE_SINGLE_BLOCK 0x18 /* CMD24: arg0[31:0]: data address, response R1 */ |
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106 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
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107 | #define CMD_READ_OCR 0x3A /* CMD58: response R3 */ |
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108 | #define CMD_CRC_ON_OFF 0x3B /* CMD59: arg0[31:1]: stuff bits, arg0[0:0]: crc option, response R1 */ |
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109 | #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 | 110 | |
24 | StephanB | 111 | #define R1_NO_ERR 0x00 |
112 | #define R1_IDLE_STATE 0x01 |
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113 | #define R1_ERASE_RESET 0x02 |
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114 | #define R1_ILLEGAL_CMD 0x04 |
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115 | #define R1_COM_CRC_ERR 0x08 |
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116 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
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117 | #define R1_ADDRESS_ERR 0x20 |
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118 | #define R1_PARAMETER_ERR 0x40 |
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119 | #define R1_BAD_RESPONSE 0x80 |
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120 | |||
121 | #define R2_NO_ERR 0x00 |
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122 | #define R2_CARD_LOCKED 0x01 |
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123 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
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124 | #define R2_UNKOWN_ERR 0x04 |
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125 | #define R2_CARD_CTRL_ERR 0x08 |
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126 | #define R2_CARD_ECC_ERR 0x10 |
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127 | #define R2_WRITE_PROT_ERR 0x20 |
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128 | #define R2_ERASE_PARAM_ERR 0x40 |
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129 | #define R2_OUT_OF_RANGE_ERR 0x80 |
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130 | |||
131 | #define DATA_START_TOKEN 0xFE |
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132 | #define DATA_RESPONSE_MASK 0x1F |
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133 | #define DATA_RESPONSE_OK 0x05 |
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134 | #define DATA_RESPONSE_CRC_ERR 0x0B |
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135 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
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136 | |||
137 | volatile SDCardInfo_t SDCardInfo; |
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384 | ingob | 138 | u8 SDCardWriteRetryCounterMax; |
24 | StephanB | 139 | |
140 | |||
1 | ingob | 141 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 142 | // Function: CRC7(u8* cmd, u32 len); |
1 | ingob | 143 | // |
24 | StephanB | 144 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
1 | ingob | 145 | // |
146 | // |
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24 | StephanB | 147 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
1 | ingob | 148 | //________________________________________________________________________________________________________________________________________ |
149 | |||
24 | StephanB | 150 | u8 CRC7(u8 * cmd, u32 len) |
1 | ingob | 151 | { |
24 | StephanB | 152 | u8 i, a; |
153 | u8 crc, Data; |
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1 | ingob | 154 | |
24 | StephanB | 155 | crc = 0; // init CRC buffer |
156 | for (a = 0; a < len ;a++) // for every byte in the msg |
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157 | { |
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158 | Data = cmd[a]; |
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159 | for (i=0;i<8;i++) // for every bit in the byte |
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160 | { |
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161 | crc <<= 1; // shift crc |
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162 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
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163 | Data <<= 1; // shift data for next bit |
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164 | } |
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165 | } |
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166 | crc = (crc<<1)|1; // set terminating bit to 1 |
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167 | return(crc); |
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168 | } |
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1 | ingob | 169 | |
41 | ingob | 170 | u8 SDC_WaitForBusy(u32 timeout) |
24 | StephanB | 171 | { |
172 | u8 rsp = 0; |
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41 | ingob | 173 | u32 timestamp = 0; |
1 | ingob | 174 | |
24 | StephanB | 175 | SSC_ClearRxFifo(); |
384 | ingob | 176 | SSC_Enable(); // enable chipselect. SSC_Disable |
41 | ingob | 177 | timestamp = SetDelay(timeout); |
24 | StephanB | 178 | do |
1 | ingob | 179 | { |
24 | StephanB | 180 | rsp = SSC_GetChar(); |
378 | holgerb | 181 | if(CheckDelay(timestamp)) break; |
380 | holgerb | 182 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
24 | StephanB | 183 | return(rsp); |
184 | } |
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185 | |||
186 | |||
187 | |||
188 | //________________________________________________________________________________________________________________________________________ |
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189 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
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190 | // |
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191 | // Description: This function send a command frame to the SD-Card in spi-mode. |
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192 | // |
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193 | // |
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194 | // Returnvalue: The function returns the first response byte like for R1 commands |
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195 | //________________________________________________________________________________________________________________________________________ |
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196 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
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197 | { |
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198 | u8 r1; |
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41 | ingob | 199 | u16 timeout = 0; |
24 | StephanB | 200 | u16 a; |
201 | u8 cmd[6]; |
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202 | |||
203 | SSC_ClearRxFifo(); // clear the rx fifo |
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204 | SSC_Enable(); // enable chipselect. |
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378 | holgerb | 205 | SDC_WaitForBusy(600); // wait 500ms until card is busy |
24 | StephanB | 206 | SSC_ClearRxFifo(); // clear the rx fifo |
207 | SSC_GetChar(); // dummy to sync |
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208 | |||
209 | cmd[0] = 0x40|CmdNo; // set command index |
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210 | cmd[1] = (arg & 0xFF000000)>>24; |
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211 | cmd[2] = (arg & 0x00FF0000)>>16; |
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212 | cmd[3] = (arg & 0x0000FF00)>>8; |
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213 | cmd[4] = (arg & 0x000000FF); |
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214 | cmd[5] = CRC7(cmd, 5); // update checksum |
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215 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
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216 | { |
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217 | SSC_PutChar(cmd[a]); |
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1 | ingob | 218 | } |
24 | StephanB | 219 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
41 | ingob | 220 | |
24 | StephanB | 221 | do |
1 | ingob | 222 | { |
24 | StephanB | 223 | r1 = SSC_GetChar(); // get byte from sd-card |
41 | ingob | 224 | if (timeout++ >500) break; |
380 | holgerb | 225 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
24 | StephanB | 226 | return(r1); |
1 | ingob | 227 | } |
228 | |||
229 | |||
24 | StephanB | 230 | //________________________________________________________________________________________________________________________________________ |
231 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
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41 | ingob | 232 | // |
24 | StephanB | 233 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
234 | // |
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235 | // |
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236 | // Returnvalue: The function returns the first response byte like for R1 commands |
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237 | //________________________________________________________________________________________________________________________________________ |
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238 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
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239 | { |
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240 | u8 r1 = 0xFF; |
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241 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
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242 | if(r1 & R1_BAD_RESPONSE) return(r1); |
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243 | r1 = SDC_SendCMDR1(CmdNo, arg); |
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244 | return(r1); |
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245 | } |
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1 | ingob | 246 | |
247 | |||
248 | //________________________________________________________________________________________________________________________________________ |
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24 | StephanB | 249 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
1 | ingob | 250 | // |
24 | StephanB | 251 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
1 | ingob | 252 | // |
253 | // |
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24 | StephanB | 254 | // Returnvalue: SD_Result_t |
1 | ingob | 255 | //________________________________________________________________________________________________________________________________________ |
256 | |||
24 | StephanB | 257 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
1 | ingob | 258 | { |
24 | StephanB | 259 | u8 rsp; |
41 | ingob | 260 | u16 a, crc16; |
146 | killagreg | 261 | u32 timeout; |
24 | StephanB | 262 | SD_Result_t result = SD_ERROR_UNKNOWN; |
1 | ingob | 263 | |
24 | StephanB | 264 | // send the command |
265 | rsp = SDC_SendCMDR1(CmdNo, addr); |
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266 | if (rsp != R1_NO_ERR) |
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1 | ingob | 267 | { |
24 | StephanB | 268 | result = SD_ERROR_BAD_RESPONSE; |
269 | goto end; |
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1 | ingob | 270 | } |
271 | SSC_ClearRxFifo(); |
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146 | killagreg | 272 | timeout = SetDelay(500); |
24 | StephanB | 273 | do |
1 | ingob | 274 | { |
24 | StephanB | 275 | rsp = SSC_GetChar(); |
146 | killagreg | 276 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
1 | ingob | 277 | { |
24 | StephanB | 278 | result = SD_ERROR_READ_DATA; |
279 | goto end; |
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1 | ingob | 280 | } |
380 | holgerb | 281 | }while(rsp != DATA_START_TOKEN); |
24 | StephanB | 282 | // data start token received |
283 | for (a = 0; a < len; a++) // read the block from the SSC |
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284 | { |
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285 | Buffer[a] = SSC_GetChar(); |
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1 | ingob | 286 | } |
24 | StephanB | 287 | // Read two bytes CRC16-Data checksum |
146 | killagreg | 288 | crc16 = SSC_GetChar(); // highbyte first |
41 | ingob | 289 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
290 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
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364 | ingob | 291 | else */ |
292 | result = SD_SUCCESS; |
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24 | StephanB | 293 | end: |
384 | ingob | 294 | SSC_Disable(); // disable CS |
24 | StephanB | 295 | if(result != SD_SUCCESS) |
296 | { |
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297 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
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110 | killagreg | 298 | UART1_PutString(text); |
24 | StephanB | 299 | } |
300 | return(result); |
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301 | } |
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1 | ingob | 302 | |
24 | StephanB | 303 | |
304 | //________________________________________________________________________________________________________________________________________ |
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305 | // Function: SDC_PrintCID(u8 * pCID); |
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306 | // |
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307 | // Description: This function prints the CIS register in a human readable format. |
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308 | // |
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309 | // |
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310 | // Returnvalue: the function returns nothing |
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311 | //________________________________________________________________________________________________________________________________________ |
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312 | |||
313 | void SDC_PrintCID(u8 * pCID) |
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314 | { |
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315 | u8 pn[6]; |
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316 | u16 temp1, temp2; |
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317 | |||
41 | ingob | 318 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
110 | killagreg | 319 | UART1_PutString(text); |
24 | StephanB | 320 | memcpy(pn, &pCID[1], 2); |
321 | pn[2] = '\0'; // terminate string |
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41 | ingob | 322 | sprintf(text, " Application ID: %s\r\n",pn); |
110 | killagreg | 323 | UART1_PutString(text); |
24 | StephanB | 324 | memcpy(pn, &pCID[3], 5); |
325 | pn[5] = '\0'; // terminate string |
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41 | ingob | 326 | sprintf(text, " Product Name: %s\r\n",pn); |
110 | killagreg | 327 | UART1_PutString(text); |
41 | ingob | 328 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
110 | killagreg | 329 | UART1_PutString(text); |
330 | UART1_PutString(" Serial No.: "); |
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24 | StephanB | 331 | for(temp1 = 0; temp1<4; temp1++) |
332 | { |
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333 | sprintf(text,"%02X", pCID[9+temp1]); |
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110 | killagreg | 334 | UART1_PutString(text); |
24 | StephanB | 335 | } |
110 | killagreg | 336 | UART1_PutString("\r\n"); |
24 | StephanB | 337 | temp1 = pCID[14] & 0x0F; // month |
338 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
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41 | ingob | 339 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
110 | killagreg | 340 | UART1_PutString(text); |
1 | ingob | 341 | } |
342 | |||
24 | StephanB | 343 | //________________________________________________________________________________________________________________________________________ |
344 | // Funtion: SDC_GetCID(u8 * pCID); |
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345 | // |
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346 | // Description: This function reads the CIS register form the sd card in spi mode. |
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347 | // |
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348 | // |
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349 | // Returnvalue: the function returns error state |
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350 | //________________________________________________________________________________________________________________________________________ |
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1 | ingob | 351 | |
24 | StephanB | 352 | SD_Result_t SDC_GetCID(u8 * pCID) |
353 | { |
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354 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
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355 | } |
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1 | ingob | 356 | |
24 | StephanB | 357 | //________________________________________________________________________________________________________________________________________ |
358 | // Funtion: SDC_GetCSD(u8 * pCSD); |
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359 | // |
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360 | // Description: This function reads the CSD register form the sd card in spi mode. |
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361 | // |
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362 | // |
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363 | // Returnvalue: the function returns error state |
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364 | //________________________________________________________________________________________________________________________________________ |
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1 | ingob | 365 | |
24 | StephanB | 366 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
367 | { |
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368 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
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369 | } |
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370 | |||
371 | |||
1 | ingob | 372 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 373 | // Funtion: SDC_Init(void); |
1 | ingob | 374 | // |
24 | StephanB | 375 | // Description: This function initialises the SDCard to spi-mode. |
1 | ingob | 376 | // |
377 | // |
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24 | StephanB | 378 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
1 | ingob | 379 | //________________________________________________________________________________________________________________________________________ |
380 | |||
24 | StephanB | 381 | SD_Result_t SDC_Init(void) |
1 | ingob | 382 | { |
41 | ingob | 383 | u32 timeout = 0; |
24 | StephanB | 384 | u8 rsp[6]; // SD-SPI response buffer |
385 | SD_Result_t result = SD_ERROR_UNKNOWN; |
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384 | ingob | 386 | |
387 | //SDCardWriteRetryCounterMax = 0; |
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24 | StephanB | 388 | |
389 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
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390 | { |
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110 | killagreg | 391 | UART1_PutString("\r\n SSC init..."); |
24 | StephanB | 392 | SSC_Init(); |
110 | killagreg | 393 | UART1_PutString("ok"); |
41 | ingob | 394 | |
110 | killagreg | 395 | UART1_PutString("\r\n SDC init..."); |
24 | StephanB | 396 | SDCardInfo.Valid = 0; |
397 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
||
398 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
||
399 | mode, CS shall be held to high during 74 clock cycles. */ |
||
400 | SSC_Disable(); // set SD_CS high |
||
401 | SSC_ClearRxFifo(); // clear the rx fifo |
||
1 | ingob | 402 | |
41 | ingob | 403 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
24 | StephanB | 404 | { |
405 | SSC_PutChar(0xFF); |
||
406 | } |
||
407 | |||
408 | // switch to idle state |
||
409 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
||
410 | { |
||
41 | ingob | 411 | if (timeout++ > 20) |
24 | StephanB | 412 | { |
110 | killagreg | 413 | UART1_PutString("reset timeout"); |
24 | StephanB | 414 | result = SD_ERROR_RESET; |
415 | goto end; |
||
416 | } |
||
417 | } |
||
418 | // enable crc feature |
||
419 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
||
420 | { |
||
41 | ingob | 421 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
110 | killagreg | 422 | UART1_PutString(text); |
24 | StephanB | 423 | result = SD_ERROR_BAD_RESPONSE; |
424 | goto end; |
||
425 | }*/ |
||
426 | // check for card hw version |
||
427 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
||
428 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
||
429 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
||
430 | if(rsp[0] & R1_BAD_RESPONSE) |
||
431 | { |
||
41 | ingob | 432 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
110 | killagreg | 433 | UART1_PutString(text); |
24 | StephanB | 434 | result = SD_ERROR_BAD_RESPONSE; |
435 | goto end; |
||
436 | } |
||
437 | if(rsp[0] & R1_ILLEGAL_CMD) |
||
438 | { |
||
439 | //Ver1.X SD Memory Card or not a SD Memory Card |
||
440 | SDCardInfo.Version = VER_1X; |
||
441 | } |
||
442 | else |
||
443 | { |
||
444 | // Ver2.00 or later SD Memory Card |
||
445 | // reading the remaining bytes of the R7 response |
||
446 | SDCardInfo.Version = VER_20; |
||
41 | ingob | 447 | for(timeout = 1; timeout < 5; timeout++) |
24 | StephanB | 448 | { |
41 | ingob | 449 | rsp[timeout] = SSC_GetChar(); |
24 | StephanB | 450 | } |
451 | //check pattern |
||
452 | if(rsp[4]!= 0xAA) |
||
453 | { |
||
110 | killagreg | 454 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
24 | StephanB | 455 | result = SD_ERROR_BAD_RESPONSE; |
456 | goto end; |
||
457 | } |
||
458 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
||
459 | { |
||
460 | |||
110 | killagreg | 461 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
24 | StephanB | 462 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
463 | goto end; |
||
464 | } |
||
465 | } |
||
466 | |||
467 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
||
468 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
||
469 | if(rsp[0] & R1_BAD_RESPONSE) |
||
470 | { |
||
41 | ingob | 471 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
110 | killagreg | 472 | UART1_PutString(text); |
24 | StephanB | 473 | result = SD_ERROR_BAD_RESPONSE; |
474 | goto end; |
||
475 | } |
||
476 | if(rsp[0] & R1_ILLEGAL_CMD) |
||
477 | { |
||
110 | killagreg | 478 | UART1_PutString("Not an SD-CARD."); |
24 | StephanB | 479 | result = SD_ERROR_NO_SDCARD; |
480 | goto end; |
||
481 | } |
||
482 | // read 4 bytes of OCR register |
||
41 | ingob | 483 | for(timeout = 1; timeout < 5; timeout++) |
24 | StephanB | 484 | { |
41 | ingob | 485 | rsp[timeout] = SSC_GetChar(); |
24 | StephanB | 486 | } |
487 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
||
488 | if((rsp[2] & 0x30) != 0x30) |
||
489 | { |
||
490 | // supply voltage is not supported by sd-card |
||
110 | killagreg | 491 | UART1_PutString("Card is incompatible to 3.3V."); |
24 | StephanB | 492 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
493 | goto end; |
||
494 | } |
||
495 | |||
496 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
||
41 | ingob | 497 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
24 | StephanB | 498 | do |
499 | { |
||
500 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
||
501 | if(rsp[0] & R1_BAD_RESPONSE) |
||
502 | { |
||
41 | ingob | 503 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
110 | killagreg | 504 | UART1_PutString(text); |
24 | StephanB | 505 | result = SD_ERROR_BAD_RESPONSE; |
506 | goto end; |
||
507 | } |
||
41 | ingob | 508 | if(CheckDelay(timeout)) |
24 | StephanB | 509 | { |
110 | killagreg | 510 | UART1_PutString("Init timeout."); |
24 | StephanB | 511 | result = SD_ERROR_INITIALIZE; |
512 | goto end; |
||
513 | } |
||
514 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
||
515 | |||
516 | if(rsp[0] != R1_NO_ERR) |
||
517 | { |
||
110 | killagreg | 518 | UART1_PutString("Init error."); |
24 | StephanB | 519 | result = SD_ERROR_INITIALIZE; |
520 | goto end; |
||
521 | } |
||
522 | /* set block size to 512 bytes */ |
||
523 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
||
524 | { |
||
110 | killagreg | 525 | UART1_PutString("Error setting block length to 512."); |
24 | StephanB | 526 | result = SD_ERROR_SET_BLOCKLEN; |
527 | goto end; |
||
528 | } |
||
41 | ingob | 529 | |
379 | holgerb | 530 | SSC_Disable(); // set SD_CS high |
531 | // here is the right place to inrease the SPI baud rate to maximum |
||
24 | StephanB | 532 | |
399 | holgerb | 533 | SSC_Speed(2000); |
534 | SSC_Enable(); // set SD_CS high |
||
535 | |||
536 | // read CID register |
||
537 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
||
538 | if(result != SD_SUCCESS) |
||
539 | { |
||
540 | |||
541 | UART1_PutString(" Set interface to low speed..."); |
||
542 | SSC_Disable(); // set SD_CS high |
||
543 | // here is the right place to inrease the SPI baud rate to maximum |
||
544 | SSC_Speed(1000); |
||
545 | SSC_Enable(); // set SD_CS high |
||
546 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
||
547 | } |
||
548 | |||
549 | if(result != SD_SUCCESS) |
||
550 | { |
||
551 | UART1_PutString("Error reading CID.\r\n"); |
||
552 | goto end; |
||
553 | } |
||
554 | |||
1 | ingob | 555 | |
24 | StephanB | 556 | // read CSD register |
557 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
||
558 | if(result != SD_SUCCESS) |
||
559 | { |
||
110 | killagreg | 560 | UART1_PutString("Error reading CSD."); |
24 | StephanB | 561 | goto end; |
562 | } |
||
1 | ingob | 563 | |
110 | killagreg | 564 | UART1_PutString("ok\r\n"); |
24 | StephanB | 565 | |
566 | u8 c_size_mult, read_bl_len; |
||
567 | u32 c_size; |
||
568 | |||
569 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
||
570 | { |
||
571 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
||
572 | |||
573 | /* |
||
574 | memory capacity = BLOCKNR * BLOCK_LEN |
||
575 | BLOCKNR = (C_SIZE+1) * MULT |
||
576 | MULT = 2^(C_SIZE_MULT+2) |
||
577 | BLOCK_LEN = 2^READ_BL_LEN |
||
578 | |||
579 | C_SIZE is 12 bits [73:62] in CSD register |
||
580 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
||
581 | READ_BL_LEN is 4 bits [83:80] in CSD register |
||
582 | */ |
||
583 | |||
584 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
||
585 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
||
586 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
||
587 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
||
588 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
||
589 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
||
590 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
||
591 | break; |
||
592 | |||
593 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
||
594 | |||
595 | /* |
||
596 | memory capacity = (C_SIZE+1) * 512K byte |
||
597 | C_SIZE is 22 bits [69:48] in CSR register |
||
598 | */ |
||
599 | |||
600 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
||
601 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
||
602 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
||
603 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
||
41 | ingob | 604 | break; |
605 | |||
606 | default: //unknown CSD Version |
||
24 | StephanB | 607 | SDCardInfo.Capacity = 0; |
608 | break; |
||
609 | } |
||
610 | |||
611 | switch(SDCardInfo.Version) |
||
612 | { |
||
613 | case VER_1X: |
||
149 | killagreg | 614 | UART1_PutString(" SD-CARD V1.x"); |
24 | StephanB | 615 | break; |
616 | case VER_20: |
||
149 | killagreg | 617 | UART1_PutString(" SD-CARD V2.0 or later"); |
24 | StephanB | 618 | default: |
619 | break; |
||
620 | } |
||
621 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
||
149 | killagreg | 622 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
110 | killagreg | 623 | UART1_PutString(text); |
24 | StephanB | 624 | |
41 | ingob | 625 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
24 | StephanB | 626 | SDCardInfo.Valid = 1; |
627 | // jump point for error condition before |
||
628 | end: |
||
384 | ingob | 629 | //SSC_Disable(); |
630 | ; |
||
24 | StephanB | 631 | } |
632 | else |
||
1 | ingob | 633 | { |
24 | StephanB | 634 | SSC_Deinit(); |
635 | SDCardInfo.Valid = 0; |
||
636 | result = SD_ERROR_NOCARD; |
||
110 | killagreg | 637 | UART1_PutString("No Card in Slot."); |
1 | ingob | 638 | } |
24 | StephanB | 639 | return(result); |
1 | ingob | 640 | } |
641 | |||
642 | |||
643 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 644 | // Funtion: SDC_Deinit(void); |
1 | ingob | 645 | // |
24 | StephanB | 646 | // Description: This function deinitialises the SDCard interface. |
1 | ingob | 647 | // |
648 | // |
||
324 | killagreg | 649 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
1 | ingob | 650 | //________________________________________________________________________________________________________________________________________ |
651 | |||
24 | StephanB | 652 | SD_Result_t SDC_Deinit(void) |
653 | { |
||
110 | killagreg | 654 | UART1_PutString("\r\n SDC deinit..."); |
364 | ingob | 655 | // SSC_Deinit(); |
1 | ingob | 656 | |
24 | StephanB | 657 | SDCardInfo.Valid = 0; |
658 | SDCardInfo.Capacity = 0; |
||
659 | SDCardInfo.Version = VER_UNKNOWN; |
||
1 | ingob | 660 | |
110 | killagreg | 661 | UART1_PutString("ok"); |
24 | StephanB | 662 | return(SD_SUCCESS); |
1 | ingob | 663 | } |
664 | |||
665 | |||
666 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 667 | // Funtion: SDC_PutSector(void); |
1 | ingob | 668 | // |
24 | StephanB | 669 | // Description: This function writes one sector of data to the SSC |
1 | ingob | 670 | // |
671 | // |
||
24 | StephanB | 672 | // Returnvalue: SD_Result_t |
1 | ingob | 673 | //________________________________________________________________________________________________________________________________________ |
674 | |||
24 | StephanB | 675 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
676 | { |
||
384 | ingob | 677 | u8 retryCounter = 0; |
678 | u8 rsp; |
||
41 | ingob | 679 | u16 a, crc16; |
24 | StephanB | 680 | u16 timeout = 0; |
384 | ingob | 681 | SD_Result_t result; |
24 | StephanB | 682 | |
683 | addr = addr << 9; // convert sectoradress to byteadress |
||
384 | ingob | 684 | |
685 | while(retryCounter < 10) |
||
686 | { |
||
687 | result = SD_ERROR_UNKNOWN; |
||
688 | |||
24 | StephanB | 689 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
690 | if (rsp != R1_NO_ERR) |
||
1 | ingob | 691 | { |
24 | StephanB | 692 | result = SD_ERROR_BAD_RESPONSE; |
693 | goto end; |
||
1 | ingob | 694 | } |
695 | SSC_ClearRxFifo(); |
||
24 | StephanB | 696 | for (a=0;a<20;a++) // at least one byte |
1 | ingob | 697 | { |
24 | StephanB | 698 | SSC_GetChar(); |
1 | ingob | 699 | } |
41 | ingob | 700 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
24 | StephanB | 701 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
1 | ingob | 702 | |
24 | StephanB | 703 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
704 | { |
||
705 | SSC_PutChar(Buffer[a]); |
||
706 | } |
||
707 | // write two bytes of crc16 to the sdcard |
||
41 | ingob | 708 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
709 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
||
24 | StephanB | 710 | SSC_ClearRxFifo(); |
711 | do // wait for data response token |
||
712 | { |
||
713 | rsp = SSC_GetChar(); |
||
41 | ingob | 714 | if(timeout++ > 500) |
715 | { |
||
716 | result = SD_ERROR_TIMEOUT; |
||
717 | goto end; |
||
718 | } |
||
24 | StephanB | 719 | }while((rsp & 0x11) != 0x01 ); |
324 | killagreg | 720 | |
24 | StephanB | 721 | // analyse data response token |
722 | switch(rsp & DATA_RESPONSE_MASK) |
||
723 | { |
||
724 | case DATA_RESPONSE_OK: |
||
725 | result = SD_SUCCESS; |
||
726 | break; |
||
727 | case DATA_RESPONSE_CRC_ERR: |
||
728 | result = SD_ERROR_CRC_DATA; |
||
729 | goto end; |
||
730 | break; |
||
731 | case DATA_RESPONSE_WRITE_ERR: |
||
732 | result = SD_ERROR_WRITE_DATA; |
||
733 | goto end; |
||
734 | break; |
||
735 | default: |
||
736 | result = SD_ERROR_UNKNOWN; |
||
737 | goto end; |
||
738 | break; |
||
739 | |||
740 | } |
||
41 | ingob | 741 | // wait 2 seconds until the sdcard is busy. |
742 | rsp = SDC_WaitForBusy(2000); |
||
24 | StephanB | 743 | if(rsp != 0xFF) |
744 | { |
||
41 | ingob | 745 | result = SD_ERROR_TIMEOUT; |
746 | goto end; |
||
24 | StephanB | 747 | } |
41 | ingob | 748 | |
24 | StephanB | 749 | // check card status |
750 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
||
41 | ingob | 751 | // first byte of R2 response is like R1 response |
24 | StephanB | 752 | if(rsp != R1_NO_ERR) |
753 | { |
||
754 | result = SD_ERROR_BAD_RESPONSE; |
||
41 | ingob | 755 | SSC_GetChar(); // read out 2nd byte |
24 | StephanB | 756 | goto end; |
757 | } |
||
758 | // 2nd byte of r2 response |
||
759 | rsp = SSC_GetChar(); |
||
760 | if(rsp != R2_NO_ERR) |
||
761 | { |
||
762 | result = SD_ERROR_WRITE_DATA; |
||
763 | SSC_GetChar(); |
||
764 | goto end; |
||
765 | } |
||
766 | end: |
||
384 | ingob | 767 | //SSC_Disable(); // disable CS |
24 | StephanB | 768 | if(result != SD_SUCCESS) |
769 | { |
||
770 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
||
110 | killagreg | 771 | UART1_PutString(text); |
384 | ingob | 772 | retryCounter++; |
773 | } |
||
774 | else break; // Success -> end retry loop |
||
775 | |||
776 | } |
||
777 | if (retryCounter > SDCardWriteRetryCounterMax) |
||
778 | { SDCardWriteRetryCounterMax = retryCounter; |
||
438 | holgerb | 779 | // DebugOut.Analog[18] = SDCardWriteRetryCounterMax; |
24 | StephanB | 780 | } |
384 | ingob | 781 | |
24 | StephanB | 782 | return(result); |
41 | ingob | 783 | } |
24 | StephanB | 784 | |
785 | |||
786 | //________________________________________________________________________________________________________________________________________ |
||
787 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
||
788 | // |
||
789 | // Description: This function reads one sector of data from the SSC |
||
790 | // |
||
791 | // |
||
792 | // Returnvalue: SD_Result_t |
||
793 | //________________________________________________________________________________________________________________________________________ |
||
794 | |||
795 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
||
796 | { |
||
797 | addr = addr << 9; // convert sectoradress to byteadress |
||
798 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
||
1 | ingob | 799 | } |
800 | |||
801 | |||
802 |