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1 | /*#######################################################################################*/ |
1 | /*#######################################################################################*/ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
3 | /*#######################################################################################*/ |
3 | /*#######################################################################################*/ |
4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
5 | // + www.MikroKopter.com |
5 | // + www.MikroKopter.com |
6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
7 | // + Software Nutzungsbedingungen (english version: see below) |
7 | // + Software Nutzungsbedingungen (english version: see below) |
8 | // + der Fa. HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland - nachfolgend Lizenzgeber genannt - |
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 |
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 |
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. |
11 | // + - nachfolgend Software genannt - nur für private Zwecke zu nutzen. |
12 | // + Der Einsatz dieser Software ist nur auf oder mit Produkten des Lizenzgebers zulässig. |
12 | // + Der Einsatz dieser Software ist nur auf oder mit Produkten des Lizenzgebers zulässig. |
13 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
13 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
14 | // + Die vom Lizenzgeber gelieferte Software ist urheberrechtlich geschützt. Alle Rechte an der Software sowie an sonstigen im |
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. |
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 |
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. |
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 |
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. |
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 |
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 |
21 | // + Schadens. Die gesetzliche Haftung bei Personenschäden und nach dem Produkthaftungsgesetz bleibt unberührt. Dem Lizenzgeber steht jedoch der Einwand |
22 | // + des Mitverschuldens offen. |
22 | // + des Mitverschuldens offen. |
23 | // + Der Kunde trifft angemessene Vorkehrungen für den Fall, dass die Software ganz oder teilweise nicht ordnungsgemäß arbeitet. |
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. |
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. |
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 |
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. |
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. |
28 | // + *) Die räumliche Nutzung bezieht sich nur auf den Einsatzort, nicht auf die Reichweite der programmierten Software. |
29 | // + #### ENDE DER NUTZUNGSBEDINGUNGEN ####' |
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. |
30 | // + Hinweis: Informationen über erweiterte Nutzungsrechte (wie z.B. Nutzung für nicht-private Zwecke) sind auf Anfrage per Email an info(@)hisystems.de verfügbar. |
31 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
31 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
32 | // + Software LICENSING TERMS |
32 | // + Software LICENSING TERMS |
33 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
33 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
34 | // + of HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland, Germany - the Licensor - |
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 |
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*. |
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. |
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 |
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 |
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. |
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 |
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. |
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 |
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 |
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 |
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 |
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. |
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 |
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. |
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 |
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. |
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. |
52 | // + *) The territory aspect only refers to the place where the Software is used, not its programmed range. |
53 | // + #### END OF LICENSING TERMS #### |
53 | // + #### END OF LICENSING TERMS #### |
54 | // + Note: For information on license extensions (e.g. commercial use), please contact us at info(@)hisystems.de. |
54 | // + Note: For information on license extensions (e.g. commercial use), please contact us at info(@)hisystems.de. |
55 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
55 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
56 | #include <stdio.h> |
56 | #include <stdio.h> |
57 | #include <string.h> |
57 | #include <string.h> |
58 | #include "91x_lib.h" |
58 | #include "91x_lib.h" |
59 | #include "uart1.h" |
59 | #include "uart1.h" |
60 | #include "sdc.h" |
60 | #include "sdc.h" |
61 | #include "ssc.h" |
61 | #include "ssc.h" |
62 | #include "timer1.h" |
62 | #include "timer1.h" |
63 | #include "main.h" |
63 | #include "main.h" |
64 | #include "crc16.h" |
64 | #include "crc16.h" |
65 | 65 | ||
66 | //________________________________________________________________________________________________________________________________________ |
66 | //________________________________________________________________________________________________________________________________________ |
67 | // Module name: sdc.c |
67 | // Module name: sdc.c |
68 | // Compiler used: avr-gcc 3.4.5 |
68 | // Compiler used: avr-gcc 3.4.5 |
69 | // Last Modifikation: 08.06.2008 |
69 | // Last Modifikation: 08.06.2008 |
70 | // Version: 1.07 |
70 | // Version: 1.07 |
71 | // Authors: Stephan Busker, Gregor Stobrawa |
71 | // Authors: Stephan Busker, Gregor Stobrawa |
72 | // Description: Source files for connecting to an sd-card using the SSC |
72 | // Description: Source files for connecting to an sd-card using the SSC |
73 | // |
73 | // |
74 | //........................................................................................................................................ |
74 | //........................................................................................................................................ |
75 | // Functions: SD_Result_t SDC_init(void); |
75 | // Functions: SD_Result_t SDC_init(void); |
76 | // u8 SDC_PutCommand (u8 *cmd); |
76 | // u8 SDC_PutCommand (u8 *cmd); |
77 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
77 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
78 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
78 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
79 | // |
79 | // |
80 | ////........................................................................................................................................ |
80 | ////........................................................................................................................................ |
81 | // ext. functions: extern void SSC_Init(void); |
81 | // ext. functions: extern void SSC_Init(void); |
82 | // extern u8 SSC_GetChar (void); |
82 | // extern u8 SSC_GetChar (void); |
83 | // extern void SSC_PutChar (u8); |
83 | // extern void SSC_PutChar (u8); |
84 | // extern void SSC_Enable(void); |
84 | // extern void SSC_Enable(void); |
85 | // extern void SSC_Disable(void); |
85 | // extern void SSC_Disable(void); |
86 | // extern void SSC_ClearRxFifo(); |
86 | // extern void SSC_ClearRxFifo(); |
87 | //........................................................................................................................................ |
87 | //........................................................................................................................................ |
88 | // |
88 | // |
89 | // URL: www.Mikro-Control.de |
89 | // URL: www.Mikro-Control.de |
90 | // mailto: stephan.busker@mikro-control.de |
90 | // mailto: stephan.busker@mikro-control.de |
91 | //________________________________________________________________________________________________________________________________________ |
91 | //________________________________________________________________________________________________________________________________________ |
92 | 92 | ||
93 | 93 | ||
94 | 94 | ||
95 | #define CMD_GO_IDLE_STATE 0x00 /* CMD00: response R1 */ |
95 | #define CMD_GO_IDLE_STATE 0x00 /* CMD00: response R1 */ |
96 | #define CMD_SEND_OP_COND 0x01 /* CMD01: response R1 */ |
96 | #define CMD_SEND_OP_COND 0x01 /* CMD01: response R1 */ |
97 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
97 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
98 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
98 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
99 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
99 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
100 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
100 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
101 | #define CMD_SET_BLOCKLEN 0x10 /* CMD16: arg0[31:0]: block length, response R1*/ |
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 */ |
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 */ |
103 | #define CMD_WRITE_SINGLE_BLOCK 0x18 /* CMD24: arg0[31:0]: data address, response R1 */ |
104 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
104 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
105 | #define CMD_READ_OCR 0x3A /* CMD58: response R3 */ |
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 */ |
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 */ |
107 | #define ACMD_SEND_OP_COND 0x29 /* ACMD41: arg0[31]: stuff bits, arg0[30]: HCS, arg0[29:0] stuff bits*, response R1 */ |
108 | 108 | ||
109 | #define R1_NO_ERR 0x00 |
109 | #define R1_NO_ERR 0x00 |
110 | #define R1_IDLE_STATE 0x01 |
110 | #define R1_IDLE_STATE 0x01 |
111 | #define R1_ERASE_RESET 0x02 |
111 | #define R1_ERASE_RESET 0x02 |
112 | #define R1_ILLEGAL_CMD 0x04 |
112 | #define R1_ILLEGAL_CMD 0x04 |
113 | #define R1_COM_CRC_ERR 0x08 |
113 | #define R1_COM_CRC_ERR 0x08 |
114 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
114 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
115 | #define R1_ADDRESS_ERR 0x20 |
115 | #define R1_ADDRESS_ERR 0x20 |
116 | #define R1_PARAMETER_ERR 0x40 |
116 | #define R1_PARAMETER_ERR 0x40 |
117 | #define R1_BAD_RESPONSE 0x80 |
117 | #define R1_BAD_RESPONSE 0x80 |
118 | 118 | ||
119 | #define R2_NO_ERR 0x00 |
119 | #define R2_NO_ERR 0x00 |
120 | #define R2_CARD_LOCKED 0x01 |
120 | #define R2_CARD_LOCKED 0x01 |
121 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
121 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
122 | #define R2_UNKOWN_ERR 0x04 |
122 | #define R2_UNKOWN_ERR 0x04 |
123 | #define R2_CARD_CTRL_ERR 0x08 |
123 | #define R2_CARD_CTRL_ERR 0x08 |
124 | #define R2_CARD_ECC_ERR 0x10 |
124 | #define R2_CARD_ECC_ERR 0x10 |
125 | #define R2_WRITE_PROT_ERR 0x20 |
125 | #define R2_WRITE_PROT_ERR 0x20 |
126 | #define R2_ERASE_PARAM_ERR 0x40 |
126 | #define R2_ERASE_PARAM_ERR 0x40 |
127 | #define R2_OUT_OF_RANGE_ERR 0x80 |
127 | #define R2_OUT_OF_RANGE_ERR 0x80 |
128 | 128 | ||
129 | #define DATA_START_TOKEN 0xFE |
129 | #define DATA_START_TOKEN 0xFE |
130 | #define DATA_RESPONSE_MASK 0x1F |
130 | #define DATA_RESPONSE_MASK 0x1F |
131 | #define DATA_RESPONSE_OK 0x05 |
131 | #define DATA_RESPONSE_OK 0x05 |
132 | #define DATA_RESPONSE_CRC_ERR 0x0B |
132 | #define DATA_RESPONSE_CRC_ERR 0x0B |
133 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
133 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
134 | 134 | ||
135 | volatile SDCardInfo_t SDCardInfo; |
135 | volatile SDCardInfo_t SDCardInfo; |
136 | 136 | ||
137 | 137 | ||
138 | //________________________________________________________________________________________________________________________________________ |
138 | //________________________________________________________________________________________________________________________________________ |
139 | // Function: CRC7(u8* cmd, u32 len); |
139 | // Function: CRC7(u8* cmd, u32 len); |
140 | // |
140 | // |
141 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
141 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
142 | // |
142 | // |
143 | // |
143 | // |
144 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
144 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
145 | //________________________________________________________________________________________________________________________________________ |
145 | //________________________________________________________________________________________________________________________________________ |
146 | 146 | ||
147 | u8 CRC7(u8 * cmd, u32 len) |
147 | u8 CRC7(u8 * cmd, u32 len) |
148 | { |
148 | { |
149 | u8 i, a; |
149 | u8 i, a; |
150 | u8 crc, Data; |
150 | u8 crc, Data; |
151 | 151 | ||
152 | crc = 0; // init CRC buffer |
152 | crc = 0; // init CRC buffer |
153 | for (a = 0; a < len ;a++) // for every byte in the msg |
153 | for (a = 0; a < len ;a++) // for every byte in the msg |
154 | { |
154 | { |
155 | Data = cmd[a]; |
155 | Data = cmd[a]; |
156 | for (i=0;i<8;i++) // for every bit in the byte |
156 | for (i=0;i<8;i++) // for every bit in the byte |
157 | { |
157 | { |
158 | crc <<= 1; // shift crc |
158 | crc <<= 1; // shift crc |
159 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
159 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
160 | Data <<= 1; // shift data for next bit |
160 | Data <<= 1; // shift data for next bit |
161 | } |
161 | } |
162 | } |
162 | } |
163 | crc = (crc<<1)|1; // set terminating bit to 1 |
163 | crc = (crc<<1)|1; // set terminating bit to 1 |
164 | return(crc); |
164 | return(crc); |
165 | } |
165 | } |
166 | 166 | ||
167 | u8 SDC_WaitForBusy(u32 timeout) |
167 | u8 SDC_WaitForBusy(u32 timeout) |
168 | { |
168 | { |
169 | u8 rsp = 0; |
169 | u8 rsp = 0; |
170 | u32 timestamp = 0; |
170 | u32 timestamp = 0; |
171 | 171 | ||
172 | SSC_ClearRxFifo(); |
172 | SSC_ClearRxFifo(); |
173 | SSC_Enable(); // enable chipselect. |
173 | SSC_Enable(); // enable chipselect. |
174 | timestamp = SetDelay(timeout); |
174 | timestamp = SetDelay(timeout); |
175 | do |
175 | do |
176 | { |
176 | { |
177 | rsp = SSC_GetChar(); |
177 | rsp = SSC_GetChar(); |
178 | if(CheckDelay(timestamp)) break; |
178 | if(CheckDelay(timestamp)) break; |
179 | }while(rsp != 0xFF && (SD_WatchDog)); // wait while card is busy (data out low) |
179 | }while(rsp != 0xFF && (SD_WatchDog)); // wait while card is busy (data out low) |
180 | return(rsp); |
180 | return(rsp); |
181 | } |
181 | } |
182 | 182 | ||
183 | 183 | ||
184 | 184 | ||
185 | //________________________________________________________________________________________________________________________________________ |
185 | //________________________________________________________________________________________________________________________________________ |
186 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
186 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
187 | // |
187 | // |
188 | // Description: This function send a command frame to the SD-Card in spi-mode. |
188 | // Description: This function send a command frame to the SD-Card in spi-mode. |
189 | // |
189 | // |
190 | // |
190 | // |
191 | // Returnvalue: The function returns the first response byte like for R1 commands |
191 | // Returnvalue: The function returns the first response byte like for R1 commands |
192 | //________________________________________________________________________________________________________________________________________ |
192 | //________________________________________________________________________________________________________________________________________ |
193 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
193 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
194 | { |
194 | { |
195 | u8 r1; |
195 | u8 r1; |
196 | u16 timeout = 0; |
196 | u16 timeout = 0; |
197 | u16 a; |
197 | u16 a; |
198 | u8 cmd[6]; |
198 | u8 cmd[6]; |
199 | 199 | ||
200 | SSC_ClearRxFifo(); // clear the rx fifo |
200 | SSC_ClearRxFifo(); // clear the rx fifo |
201 | SSC_Enable(); // enable chipselect. |
201 | SSC_Enable(); // enable chipselect. |
202 | SDC_WaitForBusy(500); // wait 500ms until card is busy |
202 | SDC_WaitForBusy(500); // wait 500ms until card is busy |
203 | SSC_ClearRxFifo(); // clear the rx fifo |
203 | SSC_ClearRxFifo(); // clear the rx fifo |
204 | SSC_GetChar(); // dummy to sync |
204 | SSC_GetChar(); // dummy to sync |
205 | 205 | ||
206 | cmd[0] = 0x40|CmdNo; // set command index |
206 | cmd[0] = 0x40|CmdNo; // set command index |
207 | cmd[1] = (arg & 0xFF000000)>>24; |
207 | cmd[1] = (arg & 0xFF000000)>>24; |
208 | cmd[2] = (arg & 0x00FF0000)>>16; |
208 | cmd[2] = (arg & 0x00FF0000)>>16; |
209 | cmd[3] = (arg & 0x0000FF00)>>8; |
209 | cmd[3] = (arg & 0x0000FF00)>>8; |
210 | cmd[4] = (arg & 0x000000FF); |
210 | cmd[4] = (arg & 0x000000FF); |
211 | cmd[5] = CRC7(cmd, 5); // update checksum |
211 | cmd[5] = CRC7(cmd, 5); // update checksum |
212 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
212 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
213 | { |
213 | { |
214 | SSC_PutChar(cmd[a]); |
214 | SSC_PutChar(cmd[a]); |
215 | } |
215 | } |
216 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
216 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
217 | 217 | ||
218 | do |
218 | do |
219 | { |
219 | { |
220 | r1 = SSC_GetChar(); // get byte from sd-card |
220 | r1 = SSC_GetChar(); // get byte from sd-card |
221 | if (timeout++ >500) break; |
221 | if (timeout++ >500) break; |
222 | }while(r1 == 0xFF && (SD_WatchDog)); // wait for the response byte from sd-card. |
222 | }while(r1 == 0xFF && (SD_WatchDog)); // wait for the response byte from sd-card. |
223 | return(r1); |
223 | return(r1); |
224 | } |
224 | } |
225 | 225 | ||
226 | 226 | ||
227 | //________________________________________________________________________________________________________________________________________ |
227 | //________________________________________________________________________________________________________________________________________ |
228 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
228 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
229 | // |
229 | // |
230 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
230 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
231 | // |
231 | // |
232 | // |
232 | // |
233 | // Returnvalue: The function returns the first response byte like for R1 commands |
233 | // Returnvalue: The function returns the first response byte like for R1 commands |
234 | //________________________________________________________________________________________________________________________________________ |
234 | //________________________________________________________________________________________________________________________________________ |
235 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
235 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
236 | { |
236 | { |
237 | u8 r1 = 0xFF; |
237 | u8 r1 = 0xFF; |
238 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
238 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
239 | if(r1 & R1_BAD_RESPONSE) return(r1); |
239 | if(r1 & R1_BAD_RESPONSE) return(r1); |
240 | r1 = SDC_SendCMDR1(CmdNo, arg); |
240 | r1 = SDC_SendCMDR1(CmdNo, arg); |
241 | return(r1); |
241 | return(r1); |
242 | } |
242 | } |
243 | 243 | ||
244 | 244 | ||
245 | //________________________________________________________________________________________________________________________________________ |
245 | //________________________________________________________________________________________________________________________________________ |
246 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
246 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
247 | // |
247 | // |
248 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
248 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
249 | // |
249 | // |
250 | // |
250 | // |
251 | // Returnvalue: SD_Result_t |
251 | // Returnvalue: SD_Result_t |
252 | //________________________________________________________________________________________________________________________________________ |
252 | //________________________________________________________________________________________________________________________________________ |
253 | 253 | ||
254 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
254 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
255 | { |
255 | { |
256 | u8 rsp; |
256 | u8 rsp; |
257 | u16 a, crc16; |
257 | u16 a, crc16; |
258 | u32 timeout; |
258 | u32 timeout; |
259 | SD_Result_t result = SD_ERROR_UNKNOWN; |
259 | SD_Result_t result = SD_ERROR_UNKNOWN; |
260 | - | ||
261 | if(SDCardInfo.Valid == 1) |
- | |
262 | { |
260 | |
263 | // send the command |
261 | // send the command |
264 | rsp = SDC_SendCMDR1(CmdNo, addr); |
262 | rsp = SDC_SendCMDR1(CmdNo, addr); |
265 | if (rsp != R1_NO_ERR) |
263 | if (rsp != R1_NO_ERR) |
266 | { |
264 | { |
267 | result = SD_ERROR_BAD_RESPONSE; |
265 | result = SD_ERROR_BAD_RESPONSE; |
268 | goto end; |
266 | goto end; |
269 | } |
267 | } |
270 | SSC_ClearRxFifo(); |
268 | SSC_ClearRxFifo(); |
271 | timeout = SetDelay(500); |
269 | timeout = SetDelay(500); |
272 | do |
270 | do |
273 | { |
271 | { |
274 | rsp = SSC_GetChar(); |
272 | rsp = SSC_GetChar(); |
275 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
273 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
276 | { |
274 | { |
277 | result = SD_ERROR_READ_DATA; |
275 | result = SD_ERROR_READ_DATA; |
278 | goto end; |
276 | goto end; |
279 | } |
277 | } |
280 | }while(rsp != DATA_START_TOKEN && (SD_WatchDog)); |
278 | }while(rsp != DATA_START_TOKEN && (SD_WatchDog)); |
281 | // data start token received |
279 | // data start token received |
282 | for (a = 0; a < len; a++) // read the block from the SSC |
280 | for (a = 0; a < len; a++) // read the block from the SSC |
283 | { |
281 | { |
284 | Buffer[a] = SSC_GetChar(); |
282 | Buffer[a] = SSC_GetChar(); |
285 | } |
283 | } |
286 | // Read two bytes CRC16-Data checksum |
284 | // Read two bytes CRC16-Data checksum |
287 | crc16 = SSC_GetChar(); // highbyte first |
285 | crc16 = SSC_GetChar(); // highbyte first |
288 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
286 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
289 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
287 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
290 | else */ |
288 | else */ |
291 | result = SD_SUCCESS; |
289 | result = SD_SUCCESS; |
292 | } |
- | |
293 | end: |
290 | end: |
294 | if(result != SD_SUCCESS) |
291 | if(result != SD_SUCCESS) |
295 | { |
292 | { |
296 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
293 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
297 | UART1_PutString(text); |
294 | UART1_PutString(text); |
298 | } |
295 | } |
299 | return(result); |
296 | return(result); |
300 | } |
297 | } |
301 | 298 | ||
302 | 299 | ||
303 | //________________________________________________________________________________________________________________________________________ |
300 | //________________________________________________________________________________________________________________________________________ |
304 | // Function: SDC_PrintCID(u8 * pCID); |
301 | // Function: SDC_PrintCID(u8 * pCID); |
305 | // |
302 | // |
306 | // Description: This function prints the CIS register in a human readable format. |
303 | // Description: This function prints the CIS register in a human readable format. |
307 | // |
304 | // |
308 | // |
305 | // |
309 | // Returnvalue: the function returns nothing |
306 | // Returnvalue: the function returns nothing |
310 | //________________________________________________________________________________________________________________________________________ |
307 | //________________________________________________________________________________________________________________________________________ |
311 | 308 | ||
312 | void SDC_PrintCID(u8 * pCID) |
309 | void SDC_PrintCID(u8 * pCID) |
313 | { |
310 | { |
314 | u8 pn[6]; |
311 | u8 pn[6]; |
315 | u16 temp1, temp2; |
312 | u16 temp1, temp2; |
316 | 313 | ||
317 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
314 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
318 | UART1_PutString(text); |
315 | UART1_PutString(text); |
319 | memcpy(pn, &pCID[1], 2); |
316 | memcpy(pn, &pCID[1], 2); |
320 | pn[2] = '\0'; // terminate string |
317 | pn[2] = '\0'; // terminate string |
321 | sprintf(text, " Application ID: %s\r\n",pn); |
318 | sprintf(text, " Application ID: %s\r\n",pn); |
322 | UART1_PutString(text); |
319 | UART1_PutString(text); |
323 | memcpy(pn, &pCID[3], 5); |
320 | memcpy(pn, &pCID[3], 5); |
324 | pn[5] = '\0'; // terminate string |
321 | pn[5] = '\0'; // terminate string |
325 | sprintf(text, " Product Name: %s\r\n",pn); |
322 | sprintf(text, " Product Name: %s\r\n",pn); |
326 | UART1_PutString(text); |
323 | UART1_PutString(text); |
327 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
324 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
328 | UART1_PutString(text); |
325 | UART1_PutString(text); |
329 | UART1_PutString(" Serial No.: "); |
326 | UART1_PutString(" Serial No.: "); |
330 | for(temp1 = 0; temp1<4; temp1++) |
327 | for(temp1 = 0; temp1<4; temp1++) |
331 | { |
328 | { |
332 | sprintf(text,"%02X", pCID[9+temp1]); |
329 | sprintf(text,"%02X", pCID[9+temp1]); |
333 | UART1_PutString(text); |
330 | UART1_PutString(text); |
334 | } |
331 | } |
335 | UART1_PutString("\r\n"); |
332 | UART1_PutString("\r\n"); |
336 | temp1 = pCID[14] & 0x0F; // month |
333 | temp1 = pCID[14] & 0x0F; // month |
337 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
334 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
338 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
335 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
339 | UART1_PutString(text); |
336 | UART1_PutString(text); |
340 | } |
337 | } |
341 | 338 | ||
342 | //________________________________________________________________________________________________________________________________________ |
339 | //________________________________________________________________________________________________________________________________________ |
343 | // Funtion: SDC_GetCID(u8 * pCID); |
340 | // Funtion: SDC_GetCID(u8 * pCID); |
344 | // |
341 | // |
345 | // Description: This function reads the CIS register form the sd card in spi mode. |
342 | // Description: This function reads the CIS register form the sd card in spi mode. |
346 | // |
343 | // |
347 | // |
344 | // |
348 | // Returnvalue: the function returns error state |
345 | // Returnvalue: the function returns error state |
349 | //________________________________________________________________________________________________________________________________________ |
346 | //________________________________________________________________________________________________________________________________________ |
350 | 347 | ||
351 | SD_Result_t SDC_GetCID(u8 * pCID) |
348 | SD_Result_t SDC_GetCID(u8 * pCID) |
352 | { |
349 | { |
353 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
350 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
354 | } |
351 | } |
355 | 352 | ||
356 | //________________________________________________________________________________________________________________________________________ |
353 | //________________________________________________________________________________________________________________________________________ |
357 | // Funtion: SDC_GetCSD(u8 * pCSD); |
354 | // Funtion: SDC_GetCSD(u8 * pCSD); |
358 | // |
355 | // |
359 | // Description: This function reads the CSD register form the sd card in spi mode. |
356 | // Description: This function reads the CSD register form the sd card in spi mode. |
360 | // |
357 | // |
361 | // |
358 | // |
362 | // Returnvalue: the function returns error state |
359 | // Returnvalue: the function returns error state |
363 | //________________________________________________________________________________________________________________________________________ |
360 | //________________________________________________________________________________________________________________________________________ |
364 | 361 | ||
365 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
362 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
366 | { |
363 | { |
367 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
364 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
368 | } |
365 | } |
369 | 366 | ||
370 | 367 | ||
371 | //________________________________________________________________________________________________________________________________________ |
368 | //________________________________________________________________________________________________________________________________________ |
372 | // Funtion: SDC_Init(void); |
369 | // Funtion: SDC_Init(void); |
373 | // |
370 | // |
374 | // Description: This function initialises the SDCard to spi-mode. |
371 | // Description: This function initialises the SDCard to spi-mode. |
375 | // |
372 | // |
376 | // |
373 | // |
377 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
374 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
378 | //________________________________________________________________________________________________________________________________________ |
375 | //________________________________________________________________________________________________________________________________________ |
379 | 376 | ||
380 | SD_Result_t SDC_Init(void) |
377 | SD_Result_t SDC_Init(void) |
381 | { |
378 | { |
382 | u32 timeout = 0; |
379 | u32 timeout = 0; |
383 | u8 rsp[6]; // SD-SPI response buffer |
380 | u8 rsp[6]; // SD-SPI response buffer |
384 | SD_Result_t result = SD_ERROR_UNKNOWN; |
381 | SD_Result_t result = SD_ERROR_UNKNOWN; |
385 | 382 | ||
386 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
383 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
387 | { |
384 | { |
388 | UART1_PutString("\r\n SSC init..."); |
385 | UART1_PutString("\r\n SSC init..."); |
389 | SSC_Init(); |
386 | SSC_Init(); |
390 | UART1_PutString("ok"); |
387 | UART1_PutString("ok"); |
391 | 388 | ||
392 | UART1_PutString("\r\n SDC init..."); |
389 | UART1_PutString("\r\n SDC init..."); |
393 | SDCardInfo.Valid = 0; |
390 | SDCardInfo.Valid = 0; |
394 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
391 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
395 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
392 | 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. */ |
393 | mode, CS shall be held to high during 74 clock cycles. */ |
397 | SSC_Disable(); // set SD_CS high |
394 | SSC_Disable(); // set SD_CS high |
398 | SSC_ClearRxFifo(); // clear the rx fifo |
395 | SSC_ClearRxFifo(); // clear the rx fifo |
399 | 396 | ||
400 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
397 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
401 | { |
398 | { |
402 | SSC_PutChar(0xFF); |
399 | SSC_PutChar(0xFF); |
403 | } |
400 | } |
404 | 401 | ||
405 | // switch to idle state |
402 | // switch to idle state |
406 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
403 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
407 | { |
404 | { |
408 | if (timeout++ > 20) |
405 | if (timeout++ > 20) |
409 | { |
406 | { |
410 | UART1_PutString("reset timeout"); |
407 | UART1_PutString("reset timeout"); |
411 | result = SD_ERROR_RESET; |
408 | result = SD_ERROR_RESET; |
412 | goto end; |
409 | goto end; |
413 | } |
410 | } |
414 | } |
411 | } |
415 | // enable crc feature |
412 | // enable crc feature |
416 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
413 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
417 | { |
414 | { |
418 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
415 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
419 | UART1_PutString(text); |
416 | UART1_PutString(text); |
420 | result = SD_ERROR_BAD_RESPONSE; |
417 | result = SD_ERROR_BAD_RESPONSE; |
421 | goto end; |
418 | goto end; |
422 | }*/ |
419 | }*/ |
423 | // check for card hw version |
420 | // check for card hw version |
424 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
421 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
425 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
422 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
426 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
423 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
427 | if(rsp[0] & R1_BAD_RESPONSE) |
424 | if(rsp[0] & R1_BAD_RESPONSE) |
428 | { |
425 | { |
429 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
426 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
430 | UART1_PutString(text); |
427 | UART1_PutString(text); |
431 | result = SD_ERROR_BAD_RESPONSE; |
428 | result = SD_ERROR_BAD_RESPONSE; |
432 | goto end; |
429 | goto end; |
433 | } |
430 | } |
434 | if(rsp[0] & R1_ILLEGAL_CMD) |
431 | if(rsp[0] & R1_ILLEGAL_CMD) |
435 | { |
432 | { |
436 | //Ver1.X SD Memory Card or not a SD Memory Card |
433 | //Ver1.X SD Memory Card or not a SD Memory Card |
437 | SDCardInfo.Version = VER_1X; |
434 | SDCardInfo.Version = VER_1X; |
438 | } |
435 | } |
439 | else |
436 | else |
440 | { |
437 | { |
441 | // Ver2.00 or later SD Memory Card |
438 | // Ver2.00 or later SD Memory Card |
442 | // reading the remaining bytes of the R7 response |
439 | // reading the remaining bytes of the R7 response |
443 | SDCardInfo.Version = VER_20; |
440 | SDCardInfo.Version = VER_20; |
444 | for(timeout = 1; timeout < 5; timeout++) |
441 | for(timeout = 1; timeout < 5; timeout++) |
445 | { |
442 | { |
446 | rsp[timeout] = SSC_GetChar(); |
443 | rsp[timeout] = SSC_GetChar(); |
447 | } |
444 | } |
448 | //check pattern |
445 | //check pattern |
449 | if(rsp[4]!= 0xAA) |
446 | if(rsp[4]!= 0xAA) |
450 | { |
447 | { |
451 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
448 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
452 | result = SD_ERROR_BAD_RESPONSE; |
449 | result = SD_ERROR_BAD_RESPONSE; |
453 | goto end; |
450 | goto end; |
454 | } |
451 | } |
455 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
452 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
456 | { |
453 | { |
457 | 454 | ||
458 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
455 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
459 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
456 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
460 | goto end; |
457 | goto end; |
461 | } |
458 | } |
462 | } |
459 | } |
463 | 460 | ||
464 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
461 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
465 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
462 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
466 | if(rsp[0] & R1_BAD_RESPONSE) |
463 | if(rsp[0] & R1_BAD_RESPONSE) |
467 | { |
464 | { |
468 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
465 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
469 | UART1_PutString(text); |
466 | UART1_PutString(text); |
470 | result = SD_ERROR_BAD_RESPONSE; |
467 | result = SD_ERROR_BAD_RESPONSE; |
471 | goto end; |
468 | goto end; |
472 | } |
469 | } |
473 | if(rsp[0] & R1_ILLEGAL_CMD) |
470 | if(rsp[0] & R1_ILLEGAL_CMD) |
474 | { |
471 | { |
475 | UART1_PutString("Not an SD-CARD."); |
472 | UART1_PutString("Not an SD-CARD."); |
476 | result = SD_ERROR_NO_SDCARD; |
473 | result = SD_ERROR_NO_SDCARD; |
477 | goto end; |
474 | goto end; |
478 | } |
475 | } |
479 | // read 4 bytes of OCR register |
476 | // read 4 bytes of OCR register |
480 | for(timeout = 1; timeout < 5; timeout++) |
477 | for(timeout = 1; timeout < 5; timeout++) |
481 | { |
478 | { |
482 | rsp[timeout] = SSC_GetChar(); |
479 | rsp[timeout] = SSC_GetChar(); |
483 | } |
480 | } |
484 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
481 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
485 | if((rsp[2] & 0x30) != 0x30) |
482 | if((rsp[2] & 0x30) != 0x30) |
486 | { |
483 | { |
487 | // supply voltage is not supported by sd-card |
484 | // supply voltage is not supported by sd-card |
488 | UART1_PutString("Card is incompatible to 3.3V."); |
485 | UART1_PutString("Card is incompatible to 3.3V."); |
489 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
486 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
490 | goto end; |
487 | goto end; |
491 | } |
488 | } |
492 | 489 | ||
493 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
490 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
494 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
491 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
495 | do |
492 | do |
496 | { |
493 | { |
497 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
494 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
498 | if(rsp[0] & R1_BAD_RESPONSE) |
495 | if(rsp[0] & R1_BAD_RESPONSE) |
499 | { |
496 | { |
500 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
497 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
501 | UART1_PutString(text); |
498 | UART1_PutString(text); |
502 | result = SD_ERROR_BAD_RESPONSE; |
499 | result = SD_ERROR_BAD_RESPONSE; |
503 | goto end; |
500 | goto end; |
504 | } |
501 | } |
505 | if(CheckDelay(timeout)) |
502 | if(CheckDelay(timeout)) |
506 | { |
503 | { |
507 | UART1_PutString("Init timeout."); |
504 | UART1_PutString("Init timeout."); |
508 | result = SD_ERROR_INITIALIZE; |
505 | result = SD_ERROR_INITIALIZE; |
509 | goto end; |
506 | goto end; |
510 | } |
507 | } |
511 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
508 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
512 | 509 | ||
513 | if(rsp[0] != R1_NO_ERR) |
510 | if(rsp[0] != R1_NO_ERR) |
514 | { |
511 | { |
515 | UART1_PutString("Init error."); |
512 | UART1_PutString("Init error."); |
516 | result = SD_ERROR_INITIALIZE; |
513 | result = SD_ERROR_INITIALIZE; |
517 | goto end; |
514 | goto end; |
518 | } |
515 | } |
519 | /* set block size to 512 bytes */ |
516 | /* set block size to 512 bytes */ |
520 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
517 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
521 | { |
518 | { |
522 | UART1_PutString("Error setting block length to 512."); |
519 | UART1_PutString("Error setting block length to 512."); |
523 | result = SD_ERROR_SET_BLOCKLEN; |
520 | result = SD_ERROR_SET_BLOCKLEN; |
524 | goto end; |
521 | goto end; |
525 | } |
522 | } |
526 | 523 | ||
527 | //SSC_Disable(); // set SD_CS high |
524 | //SSC_Disable(); // set SD_CS high |
528 | // here is the right place to inrease the SPI boud rate to maximum |
525 | // here is the right place to inrease the SPI boud rate to maximum |
529 | //SSC_Enable(); // set SD_CS high |
526 | //SSC_Enable(); // set SD_CS high |
530 | 527 | ||
531 | // read CID register |
528 | // read CID register |
532 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
529 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
533 | if(result != SD_SUCCESS) |
530 | if(result != SD_SUCCESS) |
534 | { |
531 | { |
535 | UART1_PutString("Error reading CID.\r\n"); |
532 | UART1_PutString("Error reading CID.\r\n"); |
536 | goto end; |
533 | goto end; |
537 | } |
534 | } |
538 | 535 | ||
539 | // read CSD register |
536 | // read CSD register |
540 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
537 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
541 | if(result != SD_SUCCESS) |
538 | if(result != SD_SUCCESS) |
542 | { |
539 | { |
543 | UART1_PutString("Error reading CSD."); |
540 | UART1_PutString("Error reading CSD."); |
544 | goto end; |
541 | goto end; |
545 | } |
542 | } |
546 | 543 | ||
547 | UART1_PutString("ok\r\n"); |
544 | UART1_PutString("ok\r\n"); |
548 | 545 | ||
549 | u8 c_size_mult, read_bl_len; |
546 | u8 c_size_mult, read_bl_len; |
550 | u32 c_size; |
547 | u32 c_size; |
551 | 548 | ||
552 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
549 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
553 | { |
550 | { |
554 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
551 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
555 | 552 | ||
556 | /* |
553 | /* |
557 | memory capacity = BLOCKNR * BLOCK_LEN |
554 | memory capacity = BLOCKNR * BLOCK_LEN |
558 | BLOCKNR = (C_SIZE+1) * MULT |
555 | BLOCKNR = (C_SIZE+1) * MULT |
559 | MULT = 2^(C_SIZE_MULT+2) |
556 | MULT = 2^(C_SIZE_MULT+2) |
560 | BLOCK_LEN = 2^READ_BL_LEN |
557 | BLOCK_LEN = 2^READ_BL_LEN |
561 | |
558 | |
562 | C_SIZE is 12 bits [73:62] in CSD register |
559 | C_SIZE is 12 bits [73:62] in CSD register |
563 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
560 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
564 | READ_BL_LEN is 4 bits [83:80] in CSD register |
561 | READ_BL_LEN is 4 bits [83:80] in CSD register |
565 | */ |
562 | */ |
566 | 563 | ||
567 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
564 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
568 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
565 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
569 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
566 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
570 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
567 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
571 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
568 | 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] |
569 | 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); |
570 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
574 | break; |
571 | break; |
575 | 572 | ||
576 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
573 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
577 | 574 | ||
578 | /* |
575 | /* |
579 | memory capacity = (C_SIZE+1) * 512K byte |
576 | memory capacity = (C_SIZE+1) * 512K byte |
580 | C_SIZE is 22 bits [69:48] in CSR register |
577 | C_SIZE is 22 bits [69:48] in CSR register |
581 | */ |
578 | */ |
582 | 579 | ||
583 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
580 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
584 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
581 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
585 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
582 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
586 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
583 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
587 | break; |
584 | break; |
588 | 585 | ||
589 | default: //unknown CSD Version |
586 | default: //unknown CSD Version |
590 | SDCardInfo.Capacity = 0; |
587 | SDCardInfo.Capacity = 0; |
591 | break; |
588 | break; |
592 | } |
589 | } |
593 | 590 | ||
594 | switch(SDCardInfo.Version) |
591 | switch(SDCardInfo.Version) |
595 | { |
592 | { |
596 | case VER_1X: |
593 | case VER_1X: |
597 | UART1_PutString(" SD-CARD V1.x"); |
594 | UART1_PutString(" SD-CARD V1.x"); |
598 | break; |
595 | break; |
599 | case VER_20: |
596 | case VER_20: |
600 | UART1_PutString(" SD-CARD V2.0 or later"); |
597 | UART1_PutString(" SD-CARD V2.0 or later"); |
601 | default: |
598 | default: |
602 | break; |
599 | break; |
603 | } |
600 | } |
604 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
601 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
605 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
602 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
606 | UART1_PutString(text); |
603 | UART1_PutString(text); |
607 | 604 | ||
608 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
605 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
609 | SDCardInfo.Valid = 1; |
606 | SDCardInfo.Valid = 1; |
610 | // jump point for error condition before |
607 | // jump point for error condition before |
611 | end: |
608 | end: |
612 | SSC_Disable(); |
609 | SSC_Disable(); |
613 | } |
610 | } |
614 | else |
611 | else |
615 | { |
612 | { |
616 | SSC_Deinit(); |
613 | SSC_Deinit(); |
617 | SDCardInfo.Valid = 0; |
614 | SDCardInfo.Valid = 0; |
618 | result = SD_ERROR_NOCARD; |
615 | result = SD_ERROR_NOCARD; |
619 | UART1_PutString("No Card in Slot."); |
616 | UART1_PutString("No Card in Slot."); |
620 | } |
617 | } |
621 | return(result); |
618 | return(result); |
622 | } |
619 | } |
623 | 620 | ||
624 | 621 | ||
625 | //________________________________________________________________________________________________________________________________________ |
622 | //________________________________________________________________________________________________________________________________________ |
626 | // Funtion: SDC_Deinit(void); |
623 | // Funtion: SDC_Deinit(void); |
627 | // |
624 | // |
628 | // Description: This function deinitialises the SDCard interface. |
625 | // Description: This function deinitialises the SDCard interface. |
629 | // |
626 | // |
630 | // |
627 | // |
631 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
628 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
632 | //________________________________________________________________________________________________________________________________________ |
629 | //________________________________________________________________________________________________________________________________________ |
633 | 630 | ||
634 | SD_Result_t SDC_Deinit(void) |
631 | SD_Result_t SDC_Deinit(void) |
635 | { |
632 | { |
636 | UART1_PutString("\r\n SDC deinit..."); |
633 | UART1_PutString("\r\n SDC deinit..."); |
637 | // SSC_Deinit(); |
634 | // SSC_Deinit(); |
638 | 635 | ||
639 | SDCardInfo.Valid = 0; |
636 | SDCardInfo.Valid = 0; |
640 | SDCardInfo.Capacity = 0; |
637 | SDCardInfo.Capacity = 0; |
641 | SDCardInfo.Version = VER_UNKNOWN; |
638 | SDCardInfo.Version = VER_UNKNOWN; |
642 | 639 | ||
643 | UART1_PutString("ok"); |
640 | UART1_PutString("ok"); |
644 | return(SD_SUCCESS); |
641 | return(SD_SUCCESS); |
645 | } |
642 | } |
646 | 643 | ||
647 | 644 | ||
648 | //________________________________________________________________________________________________________________________________________ |
645 | //________________________________________________________________________________________________________________________________________ |
649 | // Funtion: SDC_PutSector(void); |
646 | // Funtion: SDC_PutSector(void); |
650 | // |
647 | // |
651 | // Description: This function writes one sector of data to the SSC |
648 | // Description: This function writes one sector of data to the SSC |
652 | // |
649 | // |
653 | // |
650 | // |
654 | // Returnvalue: SD_Result_t |
651 | // Returnvalue: SD_Result_t |
655 | //________________________________________________________________________________________________________________________________________ |
652 | //________________________________________________________________________________________________________________________________________ |
656 | 653 | ||
657 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
654 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
658 | { |
655 | { |
659 | u8 rsp; |
656 | u8 rsp; |
660 | u16 a, crc16; |
657 | u16 a, crc16; |
661 | u16 timeout = 0; |
658 | u16 timeout = 0; |
662 | SD_Result_t result = SD_ERROR_UNKNOWN; |
659 | SD_Result_t result = SD_ERROR_UNKNOWN; |
663 | 660 | ||
664 | addr = addr << 9; // convert sectoradress to byteadress |
661 | addr = addr << 9; // convert sectoradress to byteadress |
665 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
662 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
666 | if (rsp != R1_NO_ERR) |
663 | if (rsp != R1_NO_ERR) |
667 | { |
664 | { |
668 | result = SD_ERROR_BAD_RESPONSE; |
665 | result = SD_ERROR_BAD_RESPONSE; |
669 | goto end; |
666 | goto end; |
670 | } |
667 | } |
671 | SSC_ClearRxFifo(); |
668 | SSC_ClearRxFifo(); |
672 | for (a=0;a<20;a++) // at least one byte |
669 | for (a=0;a<20;a++) // at least one byte |
673 | { |
670 | { |
674 | SSC_GetChar(); |
671 | SSC_GetChar(); |
675 | } |
672 | } |
676 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
673 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
677 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
674 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
678 | 675 | ||
679 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
676 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
680 | { |
677 | { |
681 | SSC_PutChar(Buffer[a]); |
678 | SSC_PutChar(Buffer[a]); |
682 | } |
679 | } |
683 | // write two bytes of crc16 to the sdcard |
680 | // write two bytes of crc16 to the sdcard |
684 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
681 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
685 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
682 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
686 | SSC_ClearRxFifo(); |
683 | SSC_ClearRxFifo(); |
687 | do // wait for data response token |
684 | do // wait for data response token |
688 | { |
685 | { |
689 | rsp = SSC_GetChar(); |
686 | rsp = SSC_GetChar(); |
690 | if(timeout++ > 500) |
687 | if(timeout++ > 500) |
691 | { |
688 | { |
692 | result = SD_ERROR_TIMEOUT; |
689 | result = SD_ERROR_TIMEOUT; |
693 | goto end; |
690 | goto end; |
694 | } |
691 | } |
695 | }while((rsp & 0x11) != 0x01 ); |
692 | }while((rsp & 0x11) != 0x01 ); |
696 | 693 | ||
697 | // analyse data response token |
694 | // analyse data response token |
698 | switch(rsp & DATA_RESPONSE_MASK) |
695 | switch(rsp & DATA_RESPONSE_MASK) |
699 | { |
696 | { |
700 | case DATA_RESPONSE_OK: |
697 | case DATA_RESPONSE_OK: |
701 | result = SD_SUCCESS; |
698 | result = SD_SUCCESS; |
702 | break; |
699 | break; |
703 | case DATA_RESPONSE_CRC_ERR: |
700 | case DATA_RESPONSE_CRC_ERR: |
704 | result = SD_ERROR_CRC_DATA; |
701 | result = SD_ERROR_CRC_DATA; |
705 | goto end; |
702 | goto end; |
706 | break; |
703 | break; |
707 | case DATA_RESPONSE_WRITE_ERR: |
704 | case DATA_RESPONSE_WRITE_ERR: |
708 | result = SD_ERROR_WRITE_DATA; |
705 | result = SD_ERROR_WRITE_DATA; |
709 | goto end; |
706 | goto end; |
710 | break; |
707 | break; |
711 | default: |
708 | default: |
712 | result = SD_ERROR_UNKNOWN; |
709 | result = SD_ERROR_UNKNOWN; |
713 | goto end; |
710 | goto end; |
714 | break; |
711 | break; |
715 | 712 | ||
716 | } |
713 | } |
717 | // wait 2 seconds until the sdcard is busy. |
714 | // wait 2 seconds until the sdcard is busy. |
718 | rsp = SDC_WaitForBusy(2000); |
715 | rsp = SDC_WaitForBusy(2000); |
719 | if(rsp != 0xFF) |
716 | if(rsp != 0xFF) |
720 | { |
717 | { |
721 | result = SD_ERROR_TIMEOUT; |
718 | result = SD_ERROR_TIMEOUT; |
722 | goto end; |
719 | goto end; |
723 | } |
720 | } |
724 | 721 | ||
725 | // check card status |
722 | // check card status |
726 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
723 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
727 | // first byte of R2 response is like R1 response |
724 | // first byte of R2 response is like R1 response |
728 | if(rsp != R1_NO_ERR) |
725 | if(rsp != R1_NO_ERR) |
729 | { |
726 | { |
730 | result = SD_ERROR_BAD_RESPONSE; |
727 | result = SD_ERROR_BAD_RESPONSE; |
731 | SSC_GetChar(); // read out 2nd byte |
728 | SSC_GetChar(); // read out 2nd byte |
732 | goto end; |
729 | goto end; |
733 | } |
730 | } |
734 | // 2nd byte of r2 response |
731 | // 2nd byte of r2 response |
735 | rsp = SSC_GetChar(); |
732 | rsp = SSC_GetChar(); |
736 | if(rsp != R2_NO_ERR) |
733 | if(rsp != R2_NO_ERR) |
737 | { |
734 | { |
738 | result = SD_ERROR_WRITE_DATA; |
735 | result = SD_ERROR_WRITE_DATA; |
739 | SSC_GetChar(); |
736 | SSC_GetChar(); |
740 | goto end; |
737 | goto end; |
741 | } |
738 | } |
742 | end: |
739 | end: |
743 | if(result != SD_SUCCESS) |
740 | if(result != SD_SUCCESS) |
744 | { |
741 | { |
745 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
742 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
746 | UART1_PutString(text); |
743 | UART1_PutString(text); |
747 | } |
744 | } |
748 | 745 | ||
749 | return(result); |
746 | return(result); |
750 | } |
747 | } |
751 | 748 | ||
752 | 749 | ||
753 | //________________________________________________________________________________________________________________________________________ |
750 | //________________________________________________________________________________________________________________________________________ |
754 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
751 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
755 | // |
752 | // |
756 | // Description: This function reads one sector of data from the SSC |
753 | // Description: This function reads one sector of data from the SSC |
757 | // |
754 | // |
758 | // |
755 | // |
759 | // Returnvalue: SD_Result_t |
756 | // Returnvalue: SD_Result_t |
760 | //________________________________________________________________________________________________________________________________________ |
757 | //________________________________________________________________________________________________________________________________________ |
761 | 758 | ||
762 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
759 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
763 | { |
760 | { |
764 | addr = addr << 9; // convert sectoradress to byteadress |
761 | addr = addr << 9; // convert sectoradress to byteadress |
765 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
762 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
766 | } |
763 | } |
767 | 764 | ||
768 | 765 | ||
769 | 766 | ||
770 | 767 |