Rev 324 | Rev 362 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1 | ingob | 1 | /*#######################################################################################*/ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
||
3 | /*#######################################################################################*/ |
||
4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
5 | // + www.MikroKopter.com |
||
6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
360 | holgerb | 7 | // + Software Nutzungsbedingungen (english version: see below) |
8 | // + der Fa. HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland - nachfolgend Lizenzgeber genannt - |
||
9 | // + Der Lizenzgeber räumt dem Kunden ein nicht-ausschließliches, zeitlich und räumlich* unbeschränktes Recht ein, die im den |
||
10 | // + Mikrocontroller verwendete Firmware für die Hardware Flight-Ctrl, Navi-Ctrl, BL-Ctrl, MK3Mag & PC-Programm MikroKopter-Tool |
||
11 | // + - nachfolgend Software genannt - nur für private Zwecke zu nutzen. |
||
12 | // + Der Einsatz dieser Software ist nur auf oder mit Produkten des Lizenzgebers zulässig. |
||
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. |
||
16 | // + Die in der Software enthaltenen Copyright-Vermerke, Markenzeichen, andere Rechtsvorbehalte, Seriennummern sowie |
||
17 | // + sonstige der Programmidentifikation dienenden Merkmale dürfen vom Kunden nicht verändert oder unkenntlich gemacht werden. |
||
18 | // + Der Kunde trifft angemessene Vorkehrungen für den sicheren Einsatz der Software. Er wird die Software gründlich auf deren |
||
19 | // + Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt. |
||
20 | // + Die Haftung des Lizenzgebers wird - soweit gesetzlich zulässig - begrenzt in Höhe des typischen und vorhersehbaren |
||
21 | // + Schadens. Die gesetzliche Haftung bei Personenschäden und nach dem Produkthaftungsgesetz bleibt unberührt. Dem Lizenzgeber steht jedoch der Einwand |
||
22 | // + des Mitverschuldens offen. |
||
23 | // + Der Kunde trifft angemessene Vorkehrungen für den Fall, dass die Software ganz oder teilweise nicht ordnungsgemäß arbeitet. |
||
24 | // + Er wird die Software gründlich auf deren Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt. |
||
25 | // + Der Kunde wird er seine Daten vor Einsatz der Software nach dem Stand der Technik sichern. |
||
26 | // + Der Kunde ist darüber unterrichtet, dass der Lizenzgeber seine Daten im zur Vertragsdurchführung erforderlichen Umfang |
||
27 | // + und auf Grundlage der Datenschutzvorschriften erhebt, speichert, verarbeitet und, sofern notwendig, an Dritte übermittelt. |
||
28 | // + *) Die räumliche Nutzung bezieht sich nur auf den Einsatzort, nicht auf die Reichweite der programmierten Software. |
||
29 | // + #### ENDE DER NUTZUNGSBEDINGUNGEN ####' |
||
30 | // + Hinweis: Informationen über erweiterte Nutzungsrechte (wie z.B. Nutzung für nicht-private Zwecke) sind auf Anfrage per Email an info(@)hisystems.de verfügbar. |
||
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 |
||
36 | // + (the Software) exclusively for private purposes. The License is unrestricted with respect to time and territory*. |
||
37 | // + The Software may only be used with the Licensor's products. |
||
38 | // + The Software provided by the Licensor is protected by copyright. With respect to the relationship between the parties to this |
||
39 | // + agreement, all rights pertaining to the Software and other documents provided during the preparation and execution of this |
||
40 | // + agreement shall be the property of the Licensor. |
||
41 | // + The information contained in the Software copyright notices, trademarks, other legal reservations, serial numbers and other |
||
42 | // + features that can be used to identify the program may not be altered or defaced by the customer. |
||
43 | // + The customer shall be responsible for taking reasonable precautions |
||
44 | // + for the safe use of the Software. The customer shall test the Software thoroughly regarding its suitability for the |
||
45 | // + intended purpose before implementing it for actual operation. The Licensor's liability shall be limited to the extent of typical and |
||
46 | // + foreseeable damage to the extent permitted by law, notwithstanding statutory liability for bodily injury and product |
||
47 | // + liability. However, the Licensor shall be entitled to the defense of contributory negligence. |
||
48 | // + The customer will take adequate precautions in the case, that the software is not working properly. The customer will test |
||
49 | // + the software for his purpose before any operational usage. The customer will backup his data before using the software. |
||
50 | // + The customer understands that the Licensor collects, stores and processes, and, where required, forwards, customer data |
||
51 | // + to third parties to the extent necessary for executing the agreement, subject to applicable data protection and privacy regulations. |
||
52 | // + *) The territory aspect only refers to the place where the Software is used, not its programmed range. |
||
53 | // + #### END OF LICENSING TERMS #### |
||
54 | // + Note: For information on license extensions (e.g. commercial use), please contact us at info(@)hisystems.de. |
||
1 | ingob | 55 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
24 | StephanB | 56 | #include <stdio.h> |
57 | #include <string.h> |
||
58 | #include "91x_lib.h" |
||
41 | ingob | 59 | #include "uart1.h" |
24 | StephanB | 60 | #include "sdc.h" |
61 | #include "ssc.h" |
||
119 | killagreg | 62 | #include "timer1.h" |
1 | ingob | 63 | #include "main.h" |
24 | StephanB | 64 | #include "crc16.h" |
1 | ingob | 65 | |
66 | //________________________________________________________________________________________________________________________________________ |
||
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 |
||
71 | // Authors: Stephan Busker, Gregor Stobrawa |
||
72 | // Description: Source files for connecting to an sd-card using the SSC |
||
1 | ingob | 73 | // |
74 | //........................................................................................................................................ |
||
24 | StephanB | 75 | // Functions: SD_Result_t SDC_init(void); |
76 | // u8 SDC_PutCommand (u8 *cmd); |
||
77 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
||
78 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
||
1 | ingob | 79 | // |
80 | ////........................................................................................................................................ |
||
81 | // ext. functions: extern void SSC_Init(void); |
||
24 | StephanB | 82 | // extern u8 SSC_GetChar (void); |
1 | ingob | 83 | // extern void SSC_PutChar (u8); |
84 | // extern void SSC_Enable(void); |
||
85 | // extern void SSC_Disable(void); |
||
24 | StephanB | 86 | // extern void SSC_ClearRxFifo(); |
1 | ingob | 87 | //........................................................................................................................................ |
88 | // |
||
89 | // URL: www.Mikro-Control.de |
||
90 | // mailto: stephan.busker@mikro-control.de |
||
91 | //________________________________________________________________________________________________________________________________________ |
||
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 */ |
||
97 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
||
98 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
||
99 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
||
100 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
||
101 | #define CMD_SET_BLOCKLEN 0x10 /* CMD16: arg0[31:0]: block length, response R1*/ |
||
102 | #define CMD_READ_SINGLE_BLOCK 0x11 /* CMD17: arg0[31:0]: data address, response R1 */ |
||
103 | #define CMD_WRITE_SINGLE_BLOCK 0x18 /* CMD24: arg0[31:0]: data address, response R1 */ |
||
104 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
||
105 | #define CMD_READ_OCR 0x3A /* CMD58: response R3 */ |
||
106 | #define CMD_CRC_ON_OFF 0x3B /* CMD59: arg0[31:1]: stuff bits, arg0[0:0]: crc option, response R1 */ |
||
107 | #define ACMD_SEND_OP_COND 0x29 /* ACMD41: arg0[31]: stuff bits, arg0[30]: HCS, arg0[29:0] stuff bits*, response R1 */ |
||
1 | ingob | 108 | |
24 | StephanB | 109 | #define R1_NO_ERR 0x00 |
110 | #define R1_IDLE_STATE 0x01 |
||
111 | #define R1_ERASE_RESET 0x02 |
||
112 | #define R1_ILLEGAL_CMD 0x04 |
||
113 | #define R1_COM_CRC_ERR 0x08 |
||
114 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
||
115 | #define R1_ADDRESS_ERR 0x20 |
||
116 | #define R1_PARAMETER_ERR 0x40 |
||
117 | #define R1_BAD_RESPONSE 0x80 |
||
118 | |||
119 | #define R2_NO_ERR 0x00 |
||
120 | #define R2_CARD_LOCKED 0x01 |
||
121 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
||
122 | #define R2_UNKOWN_ERR 0x04 |
||
123 | #define R2_CARD_CTRL_ERR 0x08 |
||
124 | #define R2_CARD_ECC_ERR 0x10 |
||
125 | #define R2_WRITE_PROT_ERR 0x20 |
||
126 | #define R2_ERASE_PARAM_ERR 0x40 |
||
127 | #define R2_OUT_OF_RANGE_ERR 0x80 |
||
128 | |||
129 | #define DATA_START_TOKEN 0xFE |
||
130 | #define DATA_RESPONSE_MASK 0x1F |
||
131 | #define DATA_RESPONSE_OK 0x05 |
||
132 | #define DATA_RESPONSE_CRC_ERR 0x0B |
||
133 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
||
134 | |||
135 | typedef enum |
||
136 | { |
||
137 | VER_UNKNOWN, |
||
138 | VER_1X, |
||
139 | VER_20 |
||
140 | } SDVersion_t; |
||
141 | |||
142 | typedef struct |
||
143 | { |
||
144 | u8 Valid; |
||
145 | SDVersion_t Version; // HW-Version |
||
146 | u32 Capacity; // Memory capacity in bytes |
||
147 | u8 CID[16]; // CID register |
||
148 | u8 CSD[16]; // CSD register |
||
149 | } __attribute__((packed)) SDCardInfo_t; |
||
150 | |||
151 | volatile SDCardInfo_t SDCardInfo; |
||
152 | |||
153 | |||
1 | ingob | 154 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 155 | // Function: CRC7(u8* cmd, u32 len); |
1 | ingob | 156 | // |
24 | StephanB | 157 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
1 | ingob | 158 | // |
159 | // |
||
24 | StephanB | 160 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
1 | ingob | 161 | //________________________________________________________________________________________________________________________________________ |
162 | |||
24 | StephanB | 163 | u8 CRC7(u8 * cmd, u32 len) |
1 | ingob | 164 | { |
24 | StephanB | 165 | u8 i, a; |
166 | u8 crc, Data; |
||
1 | ingob | 167 | |
24 | StephanB | 168 | crc = 0; // init CRC buffer |
169 | for (a = 0; a < len ;a++) // for every byte in the msg |
||
170 | { |
||
171 | Data = cmd[a]; |
||
172 | for (i=0;i<8;i++) // for every bit in the byte |
||
173 | { |
||
174 | crc <<= 1; // shift crc |
||
175 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
||
176 | Data <<= 1; // shift data for next bit |
||
177 | } |
||
178 | } |
||
179 | crc = (crc<<1)|1; // set terminating bit to 1 |
||
180 | return(crc); |
||
181 | } |
||
1 | ingob | 182 | |
41 | ingob | 183 | u8 SDC_WaitForBusy(u32 timeout) |
24 | StephanB | 184 | { |
185 | u8 rsp = 0; |
||
41 | ingob | 186 | u32 timestamp = 0; |
1 | ingob | 187 | |
24 | StephanB | 188 | SSC_ClearRxFifo(); |
189 | SSC_Enable(); // enable chipselect. |
||
41 | ingob | 190 | timestamp = SetDelay(timeout); |
24 | StephanB | 191 | do |
1 | ingob | 192 | { |
24 | StephanB | 193 | rsp = SSC_GetChar(); |
41 | ingob | 194 | if(CheckDelay(timestamp)) break; |
24 | StephanB | 195 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
196 | return(rsp); |
||
197 | } |
||
198 | |||
199 | |||
200 | |||
201 | //________________________________________________________________________________________________________________________________________ |
||
202 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
||
203 | // |
||
204 | // Description: This function send a command frame to the SD-Card in spi-mode. |
||
205 | // |
||
206 | // |
||
207 | // Returnvalue: The function returns the first response byte like for R1 commands |
||
208 | //________________________________________________________________________________________________________________________________________ |
||
209 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
||
210 | { |
||
211 | u8 r1; |
||
41 | ingob | 212 | u16 timeout = 0; |
24 | StephanB | 213 | u16 a; |
214 | u8 cmd[6]; |
||
215 | |||
216 | SSC_ClearRxFifo(); // clear the rx fifo |
||
217 | SSC_Enable(); // enable chipselect. |
||
41 | ingob | 218 | SDC_WaitForBusy(500); // wait 500ms until card is busy |
24 | StephanB | 219 | SSC_ClearRxFifo(); // clear the rx fifo |
220 | SSC_GetChar(); // dummy to sync |
||
221 | |||
222 | cmd[0] = 0x40|CmdNo; // set command index |
||
223 | cmd[1] = (arg & 0xFF000000)>>24; |
||
224 | cmd[2] = (arg & 0x00FF0000)>>16; |
||
225 | cmd[3] = (arg & 0x0000FF00)>>8; |
||
226 | cmd[4] = (arg & 0x000000FF); |
||
227 | cmd[5] = CRC7(cmd, 5); // update checksum |
||
228 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
||
229 | { |
||
230 | SSC_PutChar(cmd[a]); |
||
1 | ingob | 231 | } |
24 | StephanB | 232 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
41 | ingob | 233 | |
24 | StephanB | 234 | do |
1 | ingob | 235 | { |
24 | StephanB | 236 | r1 = SSC_GetChar(); // get byte from sd-card |
41 | ingob | 237 | if (timeout++ >500) break; |
24 | StephanB | 238 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
239 | return(r1); |
||
1 | ingob | 240 | } |
241 | |||
242 | |||
24 | StephanB | 243 | //________________________________________________________________________________________________________________________________________ |
244 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
||
41 | ingob | 245 | // |
24 | StephanB | 246 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
247 | // |
||
248 | // |
||
249 | // Returnvalue: The function returns the first response byte like for R1 commands |
||
250 | //________________________________________________________________________________________________________________________________________ |
||
251 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
||
252 | { |
||
253 | u8 r1 = 0xFF; |
||
254 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
||
255 | if(r1 & R1_BAD_RESPONSE) return(r1); |
||
256 | r1 = SDC_SendCMDR1(CmdNo, arg); |
||
257 | return(r1); |
||
258 | } |
||
1 | ingob | 259 | |
260 | |||
261 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 262 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
1 | ingob | 263 | // |
24 | StephanB | 264 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
1 | ingob | 265 | // |
266 | // |
||
24 | StephanB | 267 | // Returnvalue: SD_Result_t |
1 | ingob | 268 | //________________________________________________________________________________________________________________________________________ |
269 | |||
24 | StephanB | 270 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
1 | ingob | 271 | { |
24 | StephanB | 272 | u8 rsp; |
41 | ingob | 273 | u16 a, crc16; |
146 | killagreg | 274 | u32 timeout; |
24 | StephanB | 275 | SD_Result_t result = SD_ERROR_UNKNOWN; |
1 | ingob | 276 | |
24 | StephanB | 277 | // send the command |
278 | rsp = SDC_SendCMDR1(CmdNo, addr); |
||
279 | if (rsp != R1_NO_ERR) |
||
1 | ingob | 280 | { |
24 | StephanB | 281 | result = SD_ERROR_BAD_RESPONSE; |
282 | goto end; |
||
1 | ingob | 283 | } |
284 | SSC_ClearRxFifo(); |
||
146 | killagreg | 285 | timeout = SetDelay(500); |
24 | StephanB | 286 | do |
1 | ingob | 287 | { |
24 | StephanB | 288 | rsp = SSC_GetChar(); |
146 | killagreg | 289 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
1 | ingob | 290 | { |
24 | StephanB | 291 | result = SD_ERROR_READ_DATA; |
292 | goto end; |
||
1 | ingob | 293 | } |
24 | StephanB | 294 | }while(rsp != DATA_START_TOKEN); |
295 | // data start token received |
||
296 | for (a = 0; a < len; a++) // read the block from the SSC |
||
297 | { |
||
298 | Buffer[a] = SSC_GetChar(); |
||
1 | ingob | 299 | } |
24 | StephanB | 300 | // Read two bytes CRC16-Data checksum |
146 | killagreg | 301 | crc16 = SSC_GetChar(); // highbyte first |
41 | ingob | 302 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
303 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
||
304 | else */result = SD_SUCCESS; |
||
24 | StephanB | 305 | |
306 | end: |
||
307 | if(result != SD_SUCCESS) |
||
308 | { |
||
309 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
||
110 | killagreg | 310 | UART1_PutString(text); |
24 | StephanB | 311 | } |
312 | return(result); |
||
313 | } |
||
1 | ingob | 314 | |
24 | StephanB | 315 | |
316 | //________________________________________________________________________________________________________________________________________ |
||
317 | // Function: SDC_PrintCID(u8 * pCID); |
||
318 | // |
||
319 | // Description: This function prints the CIS register in a human readable format. |
||
320 | // |
||
321 | // |
||
322 | // Returnvalue: the function returns nothing |
||
323 | //________________________________________________________________________________________________________________________________________ |
||
324 | |||
325 | void SDC_PrintCID(u8 * pCID) |
||
326 | { |
||
327 | u8 pn[6]; |
||
328 | u16 temp1, temp2; |
||
329 | |||
41 | ingob | 330 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
110 | killagreg | 331 | UART1_PutString(text); |
24 | StephanB | 332 | memcpy(pn, &pCID[1], 2); |
333 | pn[2] = '\0'; // terminate string |
||
41 | ingob | 334 | sprintf(text, " Application ID: %s\r\n",pn); |
110 | killagreg | 335 | UART1_PutString(text); |
24 | StephanB | 336 | memcpy(pn, &pCID[3], 5); |
337 | pn[5] = '\0'; // terminate string |
||
41 | ingob | 338 | sprintf(text, " Product Name: %s\r\n",pn); |
110 | killagreg | 339 | UART1_PutString(text); |
41 | ingob | 340 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
110 | killagreg | 341 | UART1_PutString(text); |
342 | UART1_PutString(" Serial No.: "); |
||
24 | StephanB | 343 | for(temp1 = 0; temp1<4; temp1++) |
344 | { |
||
345 | sprintf(text,"%02X", pCID[9+temp1]); |
||
110 | killagreg | 346 | UART1_PutString(text); |
24 | StephanB | 347 | } |
110 | killagreg | 348 | UART1_PutString("\r\n"); |
24 | StephanB | 349 | temp1 = pCID[14] & 0x0F; // month |
350 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
||
41 | ingob | 351 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
110 | killagreg | 352 | UART1_PutString(text); |
1 | ingob | 353 | } |
354 | |||
24 | StephanB | 355 | //________________________________________________________________________________________________________________________________________ |
356 | // Funtion: SDC_GetCID(u8 * pCID); |
||
357 | // |
||
358 | // Description: This function reads the CIS register form the sd card in spi mode. |
||
359 | // |
||
360 | // |
||
361 | // Returnvalue: the function returns error state |
||
362 | //________________________________________________________________________________________________________________________________________ |
||
1 | ingob | 363 | |
24 | StephanB | 364 | SD_Result_t SDC_GetCID(u8 * pCID) |
365 | { |
||
366 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
||
367 | } |
||
1 | ingob | 368 | |
24 | StephanB | 369 | //________________________________________________________________________________________________________________________________________ |
370 | // Funtion: SDC_GetCSD(u8 * pCSD); |
||
371 | // |
||
372 | // Description: This function reads the CSD register form the sd card in spi mode. |
||
373 | // |
||
374 | // |
||
375 | // Returnvalue: the function returns error state |
||
376 | //________________________________________________________________________________________________________________________________________ |
||
1 | ingob | 377 | |
24 | StephanB | 378 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
379 | { |
||
380 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
||
381 | } |
||
382 | |||
383 | |||
1 | ingob | 384 | //________________________________________________________________________________________________________________________________________ |
24 | StephanB | 385 | // Funtion: SDC_Init(void); |
1 | ingob | 386 | // |
24 | StephanB | 387 | // Description: This function initialises the SDCard to spi-mode. |
1 | ingob | 388 | // |
389 | // |
||
24 | StephanB | 390 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
1 | ingob | 391 | //________________________________________________________________________________________________________________________________________ |
392 | |||
24 | StephanB | 393 | SD_Result_t SDC_Init(void) |
1 | ingob | 394 | { |
41 | ingob | 395 | u32 timeout = 0; |
24 | StephanB | 396 | u8 rsp[6]; // SD-SPI response buffer |
397 | SD_Result_t result = SD_ERROR_UNKNOWN; |
||
398 | |||
399 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
||
400 | { |
||
110 | killagreg | 401 | UART1_PutString("\r\n SSC init..."); |
24 | StephanB | 402 | SSC_Init(); |
110 | killagreg | 403 | UART1_PutString("ok"); |
41 | ingob | 404 | |
110 | killagreg | 405 | UART1_PutString("\r\n SDC init..."); |
24 | StephanB | 406 | SDCardInfo.Valid = 0; |
407 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
||
408 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
||
409 | mode, CS shall be held to high during 74 clock cycles. */ |
||
410 | SSC_Disable(); // set SD_CS high |
||
411 | SSC_ClearRxFifo(); // clear the rx fifo |
||
1 | ingob | 412 | |
41 | ingob | 413 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
24 | StephanB | 414 | { |
415 | SSC_PutChar(0xFF); |
||
416 | } |
||
417 | |||
418 | // switch to idle state |
||
419 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
||
420 | { |
||
41 | ingob | 421 | if (timeout++ > 20) |
24 | StephanB | 422 | { |
110 | killagreg | 423 | UART1_PutString("reset timeout"); |
24 | StephanB | 424 | result = SD_ERROR_RESET; |
425 | goto end; |
||
426 | } |
||
427 | } |
||
428 | // enable crc feature |
||
429 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
||
430 | { |
||
41 | ingob | 431 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
110 | killagreg | 432 | UART1_PutString(text); |
24 | StephanB | 433 | result = SD_ERROR_BAD_RESPONSE; |
434 | goto end; |
||
435 | }*/ |
||
436 | // check for card hw version |
||
437 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
||
438 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
||
439 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
||
440 | if(rsp[0] & R1_BAD_RESPONSE) |
||
441 | { |
||
41 | ingob | 442 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
110 | killagreg | 443 | UART1_PutString(text); |
24 | StephanB | 444 | result = SD_ERROR_BAD_RESPONSE; |
445 | goto end; |
||
446 | } |
||
447 | if(rsp[0] & R1_ILLEGAL_CMD) |
||
448 | { |
||
449 | //Ver1.X SD Memory Card or not a SD Memory Card |
||
450 | SDCardInfo.Version = VER_1X; |
||
451 | } |
||
452 | else |
||
453 | { |
||
454 | // Ver2.00 or later SD Memory Card |
||
455 | // reading the remaining bytes of the R7 response |
||
456 | SDCardInfo.Version = VER_20; |
||
41 | ingob | 457 | for(timeout = 1; timeout < 5; timeout++) |
24 | StephanB | 458 | { |
41 | ingob | 459 | rsp[timeout] = SSC_GetChar(); |
24 | StephanB | 460 | } |
461 | //check pattern |
||
462 | if(rsp[4]!= 0xAA) |
||
463 | { |
||
110 | killagreg | 464 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
24 | StephanB | 465 | result = SD_ERROR_BAD_RESPONSE; |
466 | goto end; |
||
467 | } |
||
468 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
||
469 | { |
||
470 | |||
110 | killagreg | 471 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
24 | StephanB | 472 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
473 | goto end; |
||
474 | } |
||
475 | } |
||
476 | |||
477 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
||
478 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
||
479 | if(rsp[0] & R1_BAD_RESPONSE) |
||
480 | { |
||
41 | ingob | 481 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
110 | killagreg | 482 | UART1_PutString(text); |
24 | StephanB | 483 | result = SD_ERROR_BAD_RESPONSE; |
484 | goto end; |
||
485 | } |
||
486 | if(rsp[0] & R1_ILLEGAL_CMD) |
||
487 | { |
||
110 | killagreg | 488 | UART1_PutString("Not an SD-CARD."); |
24 | StephanB | 489 | result = SD_ERROR_NO_SDCARD; |
490 | goto end; |
||
491 | } |
||
492 | // read 4 bytes of OCR register |
||
41 | ingob | 493 | for(timeout = 1; timeout < 5; timeout++) |
24 | StephanB | 494 | { |
41 | ingob | 495 | rsp[timeout] = SSC_GetChar(); |
24 | StephanB | 496 | } |
497 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
||
498 | if((rsp[2] & 0x30) != 0x30) |
||
499 | { |
||
500 | // supply voltage is not supported by sd-card |
||
110 | killagreg | 501 | UART1_PutString("Card is incompatible to 3.3V."); |
24 | StephanB | 502 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
503 | goto end; |
||
504 | } |
||
505 | |||
506 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
||
41 | ingob | 507 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
24 | StephanB | 508 | do |
509 | { |
||
510 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
||
511 | if(rsp[0] & R1_BAD_RESPONSE) |
||
512 | { |
||
41 | ingob | 513 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
110 | killagreg | 514 | UART1_PutString(text); |
24 | StephanB | 515 | result = SD_ERROR_BAD_RESPONSE; |
516 | goto end; |
||
517 | } |
||
41 | ingob | 518 | if(CheckDelay(timeout)) |
24 | StephanB | 519 | { |
110 | killagreg | 520 | UART1_PutString("Init timeout."); |
24 | StephanB | 521 | result = SD_ERROR_INITIALIZE; |
522 | goto end; |
||
523 | } |
||
524 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
||
525 | |||
526 | if(rsp[0] != R1_NO_ERR) |
||
527 | { |
||
110 | killagreg | 528 | UART1_PutString("Init error."); |
24 | StephanB | 529 | result = SD_ERROR_INITIALIZE; |
530 | goto end; |
||
531 | } |
||
532 | /* set block size to 512 bytes */ |
||
533 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
||
534 | { |
||
110 | killagreg | 535 | UART1_PutString("Error setting block length to 512."); |
24 | StephanB | 536 | result = SD_ERROR_SET_BLOCKLEN; |
537 | goto end; |
||
538 | } |
||
41 | ingob | 539 | |
540 | //SSC_Disable(); // set SD_CS high |
||
24 | StephanB | 541 | // here is the right place to inrease the SPI boud rate to maximum |
542 | //SSC_Enable(); // set SD_CS high |
||
543 | |||
544 | // read CID register |
||
545 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
||
546 | if(result != SD_SUCCESS) |
||
547 | { |
||
110 | killagreg | 548 | UART1_PutString("Error reading CID.\r\n"); |
24 | StephanB | 549 | goto end; |
550 | } |
||
1 | ingob | 551 | |
24 | StephanB | 552 | // read CSD register |
553 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
||
554 | if(result != SD_SUCCESS) |
||
555 | { |
||
110 | killagreg | 556 | UART1_PutString("Error reading CSD."); |
24 | StephanB | 557 | goto end; |
558 | } |
||
1 | ingob | 559 | |
110 | killagreg | 560 | UART1_PutString("ok\r\n"); |
24 | StephanB | 561 | |
562 | u8 c_size_mult, read_bl_len; |
||
563 | u32 c_size; |
||
564 | |||
565 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
||
566 | { |
||
567 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
||
568 | |||
569 | /* |
||
570 | memory capacity = BLOCKNR * BLOCK_LEN |
||
571 | BLOCKNR = (C_SIZE+1) * MULT |
||
572 | MULT = 2^(C_SIZE_MULT+2) |
||
573 | BLOCK_LEN = 2^READ_BL_LEN |
||
574 | |||
575 | C_SIZE is 12 bits [73:62] in CSD register |
||
576 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
||
577 | READ_BL_LEN is 4 bits [83:80] in CSD register |
||
578 | */ |
||
579 | |||
580 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
||
581 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
||
582 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
||
583 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
||
584 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
||
585 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
||
586 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
||
587 | break; |
||
588 | |||
589 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
||
590 | |||
591 | /* |
||
592 | memory capacity = (C_SIZE+1) * 512K byte |
||
593 | C_SIZE is 22 bits [69:48] in CSR register |
||
594 | */ |
||
595 | |||
596 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
||
597 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
||
598 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
||
599 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
||
41 | ingob | 600 | break; |
601 | |||
602 | default: //unknown CSD Version |
||
24 | StephanB | 603 | SDCardInfo.Capacity = 0; |
604 | break; |
||
605 | } |
||
606 | |||
607 | switch(SDCardInfo.Version) |
||
608 | { |
||
609 | case VER_1X: |
||
149 | killagreg | 610 | UART1_PutString(" SD-CARD V1.x"); |
24 | StephanB | 611 | break; |
612 | case VER_20: |
||
149 | killagreg | 613 | UART1_PutString(" SD-CARD V2.0 or later"); |
24 | StephanB | 614 | default: |
615 | break; |
||
616 | } |
||
617 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
||
149 | killagreg | 618 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
110 | killagreg | 619 | UART1_PutString(text); |
24 | StephanB | 620 | |
41 | ingob | 621 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
24 | StephanB | 622 | SDCardInfo.Valid = 1; |
623 | // jump point for error condition before |
||
624 | end: |
||
625 | SSC_Disable(); |
||
626 | } |
||
627 | else |
||
1 | ingob | 628 | { |
24 | StephanB | 629 | SSC_Deinit(); |
630 | SDCardInfo.Valid = 0; |
||
631 | result = SD_ERROR_NOCARD; |
||
110 | killagreg | 632 | UART1_PutString("No Card in Slot."); |
1 | ingob | 633 | } |
24 | StephanB | 634 | return(result); |
1 | ingob | 635 | } |
636 | |||
637 | |||
638 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 639 | // Funtion: SDC_Deinit(void); |
1 | ingob | 640 | // |
24 | StephanB | 641 | // Description: This function deinitialises the SDCard interface. |
1 | ingob | 642 | // |
643 | // |
||
324 | killagreg | 644 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
1 | ingob | 645 | //________________________________________________________________________________________________________________________________________ |
646 | |||
24 | StephanB | 647 | SD_Result_t SDC_Deinit(void) |
648 | { |
||
110 | killagreg | 649 | UART1_PutString("\r\n SDC deinit..."); |
24 | StephanB | 650 | SSC_Deinit(); |
1 | ingob | 651 | |
24 | StephanB | 652 | SDCardInfo.Valid = 0; |
653 | SDCardInfo.Capacity = 0; |
||
654 | SDCardInfo.Version = VER_UNKNOWN; |
||
1 | ingob | 655 | |
110 | killagreg | 656 | UART1_PutString("ok"); |
24 | StephanB | 657 | return(SD_SUCCESS); |
1 | ingob | 658 | } |
659 | |||
660 | |||
661 | //________________________________________________________________________________________________________________________________________ |
||
24 | StephanB | 662 | // Funtion: SDC_PutSector(void); |
1 | ingob | 663 | // |
24 | StephanB | 664 | // Description: This function writes one sector of data to the SSC |
1 | ingob | 665 | // |
666 | // |
||
24 | StephanB | 667 | // Returnvalue: SD_Result_t |
1 | ingob | 668 | //________________________________________________________________________________________________________________________________________ |
669 | |||
24 | StephanB | 670 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
671 | { |
||
672 | u8 rsp; |
||
41 | ingob | 673 | u16 a, crc16; |
24 | StephanB | 674 | u16 timeout = 0; |
675 | SD_Result_t result = SD_ERROR_UNKNOWN; |
||
676 | |||
677 | addr = addr << 9; // convert sectoradress to byteadress |
||
678 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
||
679 | if (rsp != R1_NO_ERR) |
||
1 | ingob | 680 | { |
24 | StephanB | 681 | result = SD_ERROR_BAD_RESPONSE; |
682 | goto end; |
||
1 | ingob | 683 | } |
684 | SSC_ClearRxFifo(); |
||
24 | StephanB | 685 | for (a=0;a<20;a++) // at least one byte |
1 | ingob | 686 | { |
24 | StephanB | 687 | SSC_GetChar(); |
1 | ingob | 688 | } |
41 | ingob | 689 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
24 | StephanB | 690 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
1 | ingob | 691 | |
24 | StephanB | 692 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
693 | { |
||
694 | SSC_PutChar(Buffer[a]); |
||
695 | } |
||
696 | // write two bytes of crc16 to the sdcard |
||
41 | ingob | 697 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
698 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
||
24 | StephanB | 699 | SSC_ClearRxFifo(); |
700 | do // wait for data response token |
||
701 | { |
||
702 | rsp = SSC_GetChar(); |
||
41 | ingob | 703 | if(timeout++ > 500) |
704 | { |
||
705 | result = SD_ERROR_TIMEOUT; |
||
706 | goto end; |
||
707 | } |
||
24 | StephanB | 708 | }while((rsp & 0x11) != 0x01 ); |
324 | killagreg | 709 | |
24 | StephanB | 710 | // analyse data response token |
711 | switch(rsp & DATA_RESPONSE_MASK) |
||
712 | { |
||
713 | case DATA_RESPONSE_OK: |
||
714 | result = SD_SUCCESS; |
||
715 | break; |
||
716 | case DATA_RESPONSE_CRC_ERR: |
||
717 | result = SD_ERROR_CRC_DATA; |
||
718 | goto end; |
||
719 | break; |
||
720 | case DATA_RESPONSE_WRITE_ERR: |
||
721 | result = SD_ERROR_WRITE_DATA; |
||
722 | goto end; |
||
723 | break; |
||
724 | default: |
||
725 | result = SD_ERROR_UNKNOWN; |
||
726 | goto end; |
||
727 | break; |
||
728 | |||
729 | } |
||
41 | ingob | 730 | // wait 2 seconds until the sdcard is busy. |
731 | rsp = SDC_WaitForBusy(2000); |
||
24 | StephanB | 732 | if(rsp != 0xFF) |
733 | { |
||
41 | ingob | 734 | result = SD_ERROR_TIMEOUT; |
735 | goto end; |
||
24 | StephanB | 736 | } |
41 | ingob | 737 | |
24 | StephanB | 738 | // check card status |
739 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
||
41 | ingob | 740 | // first byte of R2 response is like R1 response |
24 | StephanB | 741 | if(rsp != R1_NO_ERR) |
742 | { |
||
743 | result = SD_ERROR_BAD_RESPONSE; |
||
41 | ingob | 744 | SSC_GetChar(); // read out 2nd byte |
24 | StephanB | 745 | goto end; |
746 | } |
||
747 | // 2nd byte of r2 response |
||
748 | rsp = SSC_GetChar(); |
||
749 | if(rsp != R2_NO_ERR) |
||
750 | { |
||
751 | result = SD_ERROR_WRITE_DATA; |
||
752 | SSC_GetChar(); |
||
753 | goto end; |
||
754 | } |
||
755 | end: |
||
756 | if(result != SD_SUCCESS) |
||
757 | { |
||
758 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
||
110 | killagreg | 759 | UART1_PutString(text); |
24 | StephanB | 760 | } |
761 | return(result); |
||
41 | ingob | 762 | } |
24 | StephanB | 763 | |
764 | |||
765 | //________________________________________________________________________________________________________________________________________ |
||
766 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
||
767 | // |
||
768 | // Description: This function reads one sector of data from the SSC |
||
769 | // |
||
770 | // |
||
771 | // Returnvalue: SD_Result_t |
||
772 | //________________________________________________________________________________________________________________________________________ |
||
773 | |||
774 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
||
775 | { |
||
776 | addr = addr << 9; // convert sectoradress to byteadress |
||
777 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
||
1 | ingob | 778 | } |
779 | |||
780 | |||
781 |