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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) |
|
260 | 262 | { |
|
261 | // send the command |
263 | // send the command |
262 | rsp = SDC_SendCMDR1(CmdNo, addr); |
264 | rsp = SDC_SendCMDR1(CmdNo, addr); |
263 | if (rsp != R1_NO_ERR) |
265 | if (rsp != R1_NO_ERR) |
264 | { |
266 | { |
265 | result = SD_ERROR_BAD_RESPONSE; |
267 | result = SD_ERROR_BAD_RESPONSE; |
266 | goto end; |
268 | goto end; |
267 | } |
269 | } |
268 | SSC_ClearRxFifo(); |
270 | SSC_ClearRxFifo(); |
269 | timeout = SetDelay(500); |
271 | timeout = SetDelay(500); |
270 | do |
272 | do |
271 | { |
273 | { |
272 | rsp = SSC_GetChar(); |
274 | rsp = SSC_GetChar(); |
273 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
275 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
274 | { |
276 | { |
275 | result = SD_ERROR_READ_DATA; |
277 | result = SD_ERROR_READ_DATA; |
276 | goto end; |
278 | goto end; |
277 | } |
279 | } |
278 | }while(rsp != DATA_START_TOKEN && (SD_WatchDog)); |
280 | }while(rsp != DATA_START_TOKEN && (SD_WatchDog)); |
279 | // data start token received |
281 | // data start token received |
280 | for (a = 0; a < len; a++) // read the block from the SSC |
282 | for (a = 0; a < len; a++) // read the block from the SSC |
281 | { |
283 | { |
282 | Buffer[a] = SSC_GetChar(); |
284 | Buffer[a] = SSC_GetChar(); |
283 | } |
285 | } |
284 | // Read two bytes CRC16-Data checksum |
286 | // Read two bytes CRC16-Data checksum |
285 | crc16 = SSC_GetChar(); // highbyte first |
287 | crc16 = SSC_GetChar(); // highbyte first |
286 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
288 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
287 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
289 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
288 | else */ |
290 | else */ |
289 | result = SD_SUCCESS; |
291 | result = SD_SUCCESS; |
290 | 292 | } |
|
291 | end: |
293 | end: |
292 | if(result != SD_SUCCESS) |
294 | if(result != SD_SUCCESS) |
293 | { |
295 | { |
294 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
296 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
295 | UART1_PutString(text); |
297 | UART1_PutString(text); |
296 | } |
298 | } |
297 | return(result); |
299 | return(result); |
298 | } |
300 | } |
299 | 301 | ||
300 | 302 | ||
301 | //________________________________________________________________________________________________________________________________________ |
303 | //________________________________________________________________________________________________________________________________________ |
302 | // Function: SDC_PrintCID(u8 * pCID); |
304 | // Function: SDC_PrintCID(u8 * pCID); |
303 | // |
305 | // |
304 | // Description: This function prints the CIS register in a human readable format. |
306 | // Description: This function prints the CIS register in a human readable format. |
305 | // |
307 | // |
306 | // |
308 | // |
307 | // Returnvalue: the function returns nothing |
309 | // Returnvalue: the function returns nothing |
308 | //________________________________________________________________________________________________________________________________________ |
310 | //________________________________________________________________________________________________________________________________________ |
309 | 311 | ||
310 | void SDC_PrintCID(u8 * pCID) |
312 | void SDC_PrintCID(u8 * pCID) |
311 | { |
313 | { |
312 | u8 pn[6]; |
314 | u8 pn[6]; |
313 | u16 temp1, temp2; |
315 | u16 temp1, temp2; |
314 | 316 | ||
315 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
317 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
316 | UART1_PutString(text); |
318 | UART1_PutString(text); |
317 | memcpy(pn, &pCID[1], 2); |
319 | memcpy(pn, &pCID[1], 2); |
318 | pn[2] = '\0'; // terminate string |
320 | pn[2] = '\0'; // terminate string |
319 | sprintf(text, " Application ID: %s\r\n",pn); |
321 | sprintf(text, " Application ID: %s\r\n",pn); |
320 | UART1_PutString(text); |
322 | UART1_PutString(text); |
321 | memcpy(pn, &pCID[3], 5); |
323 | memcpy(pn, &pCID[3], 5); |
322 | pn[5] = '\0'; // terminate string |
324 | pn[5] = '\0'; // terminate string |
323 | sprintf(text, " Product Name: %s\r\n",pn); |
325 | sprintf(text, " Product Name: %s\r\n",pn); |
324 | UART1_PutString(text); |
326 | UART1_PutString(text); |
325 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
327 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
326 | UART1_PutString(text); |
328 | UART1_PutString(text); |
327 | UART1_PutString(" Serial No.: "); |
329 | UART1_PutString(" Serial No.: "); |
328 | for(temp1 = 0; temp1<4; temp1++) |
330 | for(temp1 = 0; temp1<4; temp1++) |
329 | { |
331 | { |
330 | sprintf(text,"%02X", pCID[9+temp1]); |
332 | sprintf(text,"%02X", pCID[9+temp1]); |
331 | UART1_PutString(text); |
333 | UART1_PutString(text); |
332 | } |
334 | } |
333 | UART1_PutString("\r\n"); |
335 | UART1_PutString("\r\n"); |
334 | temp1 = pCID[14] & 0x0F; // month |
336 | temp1 = pCID[14] & 0x0F; // month |
335 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
337 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
336 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
338 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
337 | UART1_PutString(text); |
339 | UART1_PutString(text); |
338 | } |
340 | } |
339 | 341 | ||
340 | //________________________________________________________________________________________________________________________________________ |
342 | //________________________________________________________________________________________________________________________________________ |
341 | // Funtion: SDC_GetCID(u8 * pCID); |
343 | // Funtion: SDC_GetCID(u8 * pCID); |
342 | // |
344 | // |
343 | // Description: This function reads the CIS register form the sd card in spi mode. |
345 | // Description: This function reads the CIS register form the sd card in spi mode. |
344 | // |
346 | // |
345 | // |
347 | // |
346 | // Returnvalue: the function returns error state |
348 | // Returnvalue: the function returns error state |
347 | //________________________________________________________________________________________________________________________________________ |
349 | //________________________________________________________________________________________________________________________________________ |
348 | 350 | ||
349 | SD_Result_t SDC_GetCID(u8 * pCID) |
351 | SD_Result_t SDC_GetCID(u8 * pCID) |
350 | { |
352 | { |
351 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
353 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
352 | } |
354 | } |
353 | 355 | ||
354 | //________________________________________________________________________________________________________________________________________ |
356 | //________________________________________________________________________________________________________________________________________ |
355 | // Funtion: SDC_GetCSD(u8 * pCSD); |
357 | // Funtion: SDC_GetCSD(u8 * pCSD); |
356 | // |
358 | // |
357 | // Description: This function reads the CSD register form the sd card in spi mode. |
359 | // Description: This function reads the CSD register form the sd card in spi mode. |
358 | // |
360 | // |
359 | // |
361 | // |
360 | // Returnvalue: the function returns error state |
362 | // Returnvalue: the function returns error state |
361 | //________________________________________________________________________________________________________________________________________ |
363 | //________________________________________________________________________________________________________________________________________ |
362 | 364 | ||
363 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
365 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
364 | { |
366 | { |
365 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
367 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
366 | } |
368 | } |
367 | 369 | ||
368 | 370 | ||
369 | //________________________________________________________________________________________________________________________________________ |
371 | //________________________________________________________________________________________________________________________________________ |
370 | // Funtion: SDC_Init(void); |
372 | // Funtion: SDC_Init(void); |
371 | // |
373 | // |
372 | // Description: This function initialises the SDCard to spi-mode. |
374 | // Description: This function initialises the SDCard to spi-mode. |
373 | // |
375 | // |
374 | // |
376 | // |
375 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
377 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
376 | //________________________________________________________________________________________________________________________________________ |
378 | //________________________________________________________________________________________________________________________________________ |
377 | 379 | ||
378 | SD_Result_t SDC_Init(void) |
380 | SD_Result_t SDC_Init(void) |
379 | { |
381 | { |
380 | u32 timeout = 0; |
382 | u32 timeout = 0; |
381 | u8 rsp[6]; // SD-SPI response buffer |
383 | u8 rsp[6]; // SD-SPI response buffer |
382 | SD_Result_t result = SD_ERROR_UNKNOWN; |
384 | SD_Result_t result = SD_ERROR_UNKNOWN; |
383 | 385 | ||
384 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
386 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
385 | { |
387 | { |
386 | UART1_PutString("\r\n SSC init..."); |
388 | UART1_PutString("\r\n SSC init..."); |
387 | SSC_Init(); |
389 | SSC_Init(); |
388 | UART1_PutString("ok"); |
390 | UART1_PutString("ok"); |
389 | 391 | ||
390 | UART1_PutString("\r\n SDC init..."); |
392 | UART1_PutString("\r\n SDC init..."); |
391 | SDCardInfo.Valid = 0; |
393 | SDCardInfo.Valid = 0; |
392 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
394 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
393 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
395 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
394 | mode, CS shall be held to high during 74 clock cycles. */ |
396 | mode, CS shall be held to high during 74 clock cycles. */ |
395 | SSC_Disable(); // set SD_CS high |
397 | SSC_Disable(); // set SD_CS high |
396 | SSC_ClearRxFifo(); // clear the rx fifo |
398 | SSC_ClearRxFifo(); // clear the rx fifo |
397 | 399 | ||
398 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
400 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
399 | { |
401 | { |
400 | SSC_PutChar(0xFF); |
402 | SSC_PutChar(0xFF); |
401 | } |
403 | } |
402 | 404 | ||
403 | // switch to idle state |
405 | // switch to idle state |
404 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
406 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
405 | { |
407 | { |
406 | if (timeout++ > 20) |
408 | if (timeout++ > 20) |
407 | { |
409 | { |
408 | UART1_PutString("reset timeout"); |
410 | UART1_PutString("reset timeout"); |
409 | result = SD_ERROR_RESET; |
411 | result = SD_ERROR_RESET; |
410 | goto end; |
412 | goto end; |
411 | } |
413 | } |
412 | } |
414 | } |
413 | // enable crc feature |
415 | // enable crc feature |
414 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
416 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
415 | { |
417 | { |
416 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
418 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
417 | UART1_PutString(text); |
419 | UART1_PutString(text); |
418 | result = SD_ERROR_BAD_RESPONSE; |
420 | result = SD_ERROR_BAD_RESPONSE; |
419 | goto end; |
421 | goto end; |
420 | }*/ |
422 | }*/ |
421 | // check for card hw version |
423 | // check for card hw version |
422 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
424 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
423 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
425 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
424 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
426 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
425 | if(rsp[0] & R1_BAD_RESPONSE) |
427 | if(rsp[0] & R1_BAD_RESPONSE) |
426 | { |
428 | { |
427 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
429 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
428 | UART1_PutString(text); |
430 | UART1_PutString(text); |
429 | result = SD_ERROR_BAD_RESPONSE; |
431 | result = SD_ERROR_BAD_RESPONSE; |
430 | goto end; |
432 | goto end; |
431 | } |
433 | } |
432 | if(rsp[0] & R1_ILLEGAL_CMD) |
434 | if(rsp[0] & R1_ILLEGAL_CMD) |
433 | { |
435 | { |
434 | //Ver1.X SD Memory Card or not a SD Memory Card |
436 | //Ver1.X SD Memory Card or not a SD Memory Card |
435 | SDCardInfo.Version = VER_1X; |
437 | SDCardInfo.Version = VER_1X; |
436 | } |
438 | } |
437 | else |
439 | else |
438 | { |
440 | { |
439 | // Ver2.00 or later SD Memory Card |
441 | // Ver2.00 or later SD Memory Card |
440 | // reading the remaining bytes of the R7 response |
442 | // reading the remaining bytes of the R7 response |
441 | SDCardInfo.Version = VER_20; |
443 | SDCardInfo.Version = VER_20; |
442 | for(timeout = 1; timeout < 5; timeout++) |
444 | for(timeout = 1; timeout < 5; timeout++) |
443 | { |
445 | { |
444 | rsp[timeout] = SSC_GetChar(); |
446 | rsp[timeout] = SSC_GetChar(); |
445 | } |
447 | } |
446 | //check pattern |
448 | //check pattern |
447 | if(rsp[4]!= 0xAA) |
449 | if(rsp[4]!= 0xAA) |
448 | { |
450 | { |
449 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
451 | UART1_PutString("Bad cmd8 R7 check pattern.\r\n"); |
450 | result = SD_ERROR_BAD_RESPONSE; |
452 | result = SD_ERROR_BAD_RESPONSE; |
451 | goto end; |
453 | goto end; |
452 | } |
454 | } |
453 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
455 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
454 | { |
456 | { |
455 | 457 | ||
456 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
458 | UART1_PutString("Card is incompatible to 3.3V.\r\n"); |
457 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
459 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
458 | goto end; |
460 | goto end; |
459 | } |
461 | } |
460 | } |
462 | } |
461 | 463 | ||
462 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
464 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
463 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
465 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
464 | if(rsp[0] & R1_BAD_RESPONSE) |
466 | if(rsp[0] & R1_BAD_RESPONSE) |
465 | { |
467 | { |
466 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
468 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
467 | UART1_PutString(text); |
469 | UART1_PutString(text); |
468 | result = SD_ERROR_BAD_RESPONSE; |
470 | result = SD_ERROR_BAD_RESPONSE; |
469 | goto end; |
471 | goto end; |
470 | } |
472 | } |
471 | if(rsp[0] & R1_ILLEGAL_CMD) |
473 | if(rsp[0] & R1_ILLEGAL_CMD) |
472 | { |
474 | { |
473 | UART1_PutString("Not an SD-CARD."); |
475 | UART1_PutString("Not an SD-CARD."); |
474 | result = SD_ERROR_NO_SDCARD; |
476 | result = SD_ERROR_NO_SDCARD; |
475 | goto end; |
477 | goto end; |
476 | } |
478 | } |
477 | // read 4 bytes of OCR register |
479 | // read 4 bytes of OCR register |
478 | for(timeout = 1; timeout < 5; timeout++) |
480 | for(timeout = 1; timeout < 5; timeout++) |
479 | { |
481 | { |
480 | rsp[timeout] = SSC_GetChar(); |
482 | rsp[timeout] = SSC_GetChar(); |
481 | } |
483 | } |
482 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
484 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
483 | if((rsp[2] & 0x30) != 0x30) |
485 | if((rsp[2] & 0x30) != 0x30) |
484 | { |
486 | { |
485 | // supply voltage is not supported by sd-card |
487 | // supply voltage is not supported by sd-card |
486 | UART1_PutString("Card is incompatible to 3.3V."); |
488 | UART1_PutString("Card is incompatible to 3.3V."); |
487 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
489 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
488 | goto end; |
490 | goto end; |
489 | } |
491 | } |
490 | 492 | ||
491 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
493 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
492 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
494 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
493 | do |
495 | do |
494 | { |
496 | { |
495 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
497 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
496 | if(rsp[0] & R1_BAD_RESPONSE) |
498 | if(rsp[0] & R1_BAD_RESPONSE) |
497 | { |
499 | { |
498 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
500 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
499 | UART1_PutString(text); |
501 | UART1_PutString(text); |
500 | result = SD_ERROR_BAD_RESPONSE; |
502 | result = SD_ERROR_BAD_RESPONSE; |
501 | goto end; |
503 | goto end; |
502 | } |
504 | } |
503 | if(CheckDelay(timeout)) |
505 | if(CheckDelay(timeout)) |
504 | { |
506 | { |
505 | UART1_PutString("Init timeout."); |
507 | UART1_PutString("Init timeout."); |
506 | result = SD_ERROR_INITIALIZE; |
508 | result = SD_ERROR_INITIALIZE; |
507 | goto end; |
509 | goto end; |
508 | } |
510 | } |
509 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
511 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
510 | 512 | ||
511 | if(rsp[0] != R1_NO_ERR) |
513 | if(rsp[0] != R1_NO_ERR) |
512 | { |
514 | { |
513 | UART1_PutString("Init error."); |
515 | UART1_PutString("Init error."); |
514 | result = SD_ERROR_INITIALIZE; |
516 | result = SD_ERROR_INITIALIZE; |
515 | goto end; |
517 | goto end; |
516 | } |
518 | } |
517 | /* set block size to 512 bytes */ |
519 | /* set block size to 512 bytes */ |
518 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
520 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
519 | { |
521 | { |
520 | UART1_PutString("Error setting block length to 512."); |
522 | UART1_PutString("Error setting block length to 512."); |
521 | result = SD_ERROR_SET_BLOCKLEN; |
523 | result = SD_ERROR_SET_BLOCKLEN; |
522 | goto end; |
524 | goto end; |
523 | } |
525 | } |
524 | 526 | ||
525 | //SSC_Disable(); // set SD_CS high |
527 | //SSC_Disable(); // set SD_CS high |
526 | // here is the right place to inrease the SPI boud rate to maximum |
528 | // here is the right place to inrease the SPI boud rate to maximum |
527 | //SSC_Enable(); // set SD_CS high |
529 | //SSC_Enable(); // set SD_CS high |
528 | 530 | ||
529 | // read CID register |
531 | // read CID register |
530 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
532 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
531 | if(result != SD_SUCCESS) |
533 | if(result != SD_SUCCESS) |
532 | { |
534 | { |
533 | UART1_PutString("Error reading CID.\r\n"); |
535 | UART1_PutString("Error reading CID.\r\n"); |
534 | goto end; |
536 | goto end; |
535 | } |
537 | } |
536 | 538 | ||
537 | // read CSD register |
539 | // read CSD register |
538 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
540 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
539 | if(result != SD_SUCCESS) |
541 | if(result != SD_SUCCESS) |
540 | { |
542 | { |
541 | UART1_PutString("Error reading CSD."); |
543 | UART1_PutString("Error reading CSD."); |
542 | goto end; |
544 | goto end; |
543 | } |
545 | } |
544 | 546 | ||
545 | UART1_PutString("ok\r\n"); |
547 | UART1_PutString("ok\r\n"); |
546 | 548 | ||
547 | u8 c_size_mult, read_bl_len; |
549 | u8 c_size_mult, read_bl_len; |
548 | u32 c_size; |
550 | u32 c_size; |
549 | 551 | ||
550 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
552 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
551 | { |
553 | { |
552 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
554 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
553 | 555 | ||
554 | /* |
556 | /* |
555 | memory capacity = BLOCKNR * BLOCK_LEN |
557 | memory capacity = BLOCKNR * BLOCK_LEN |
556 | BLOCKNR = (C_SIZE+1) * MULT |
558 | BLOCKNR = (C_SIZE+1) * MULT |
557 | MULT = 2^(C_SIZE_MULT+2) |
559 | MULT = 2^(C_SIZE_MULT+2) |
558 | BLOCK_LEN = 2^READ_BL_LEN |
560 | BLOCK_LEN = 2^READ_BL_LEN |
559 | |
561 | |
560 | C_SIZE is 12 bits [73:62] in CSD register |
562 | C_SIZE is 12 bits [73:62] in CSD register |
561 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
563 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
562 | READ_BL_LEN is 4 bits [83:80] in CSD register |
564 | READ_BL_LEN is 4 bits [83:80] in CSD register |
563 | */ |
565 | */ |
564 | 566 | ||
565 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
567 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
566 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
568 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
567 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
569 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
568 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
570 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
569 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
571 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
570 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
572 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
571 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
573 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
572 | break; |
574 | break; |
573 | 575 | ||
574 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
576 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
575 | 577 | ||
576 | /* |
578 | /* |
577 | memory capacity = (C_SIZE+1) * 512K byte |
579 | memory capacity = (C_SIZE+1) * 512K byte |
578 | C_SIZE is 22 bits [69:48] in CSR register |
580 | C_SIZE is 22 bits [69:48] in CSR register |
579 | */ |
581 | */ |
580 | 582 | ||
581 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
583 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
582 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
584 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
583 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
585 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
584 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
586 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
585 | break; |
587 | break; |
586 | 588 | ||
587 | default: //unknown CSD Version |
589 | default: //unknown CSD Version |
588 | SDCardInfo.Capacity = 0; |
590 | SDCardInfo.Capacity = 0; |
589 | break; |
591 | break; |
590 | } |
592 | } |
591 | 593 | ||
592 | switch(SDCardInfo.Version) |
594 | switch(SDCardInfo.Version) |
593 | { |
595 | { |
594 | case VER_1X: |
596 | case VER_1X: |
595 | UART1_PutString(" SD-CARD V1.x"); |
597 | UART1_PutString(" SD-CARD V1.x"); |
596 | break; |
598 | break; |
597 | case VER_20: |
599 | case VER_20: |
598 | UART1_PutString(" SD-CARD V2.0 or later"); |
600 | UART1_PutString(" SD-CARD V2.0 or later"); |
599 | default: |
601 | default: |
600 | break; |
602 | break; |
601 | } |
603 | } |
602 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
604 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
603 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
605 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
604 | UART1_PutString(text); |
606 | UART1_PutString(text); |
605 | 607 | ||
606 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
608 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
607 | SDCardInfo.Valid = 1; |
609 | SDCardInfo.Valid = 1; |
608 | // jump point for error condition before |
610 | // jump point for error condition before |
609 | end: |
611 | end: |
610 | SSC_Disable(); |
612 | SSC_Disable(); |
611 | } |
613 | } |
612 | else |
614 | else |
613 | { |
615 | { |
614 | SSC_Deinit(); |
616 | SSC_Deinit(); |
615 | SDCardInfo.Valid = 0; |
617 | SDCardInfo.Valid = 0; |
616 | result = SD_ERROR_NOCARD; |
618 | result = SD_ERROR_NOCARD; |
617 | UART1_PutString("No Card in Slot."); |
619 | UART1_PutString("No Card in Slot."); |
618 | } |
620 | } |
619 | return(result); |
621 | return(result); |
620 | } |
622 | } |
621 | 623 | ||
622 | 624 | ||
623 | //________________________________________________________________________________________________________________________________________ |
625 | //________________________________________________________________________________________________________________________________________ |
624 | // Funtion: SDC_Deinit(void); |
626 | // Funtion: SDC_Deinit(void); |
625 | // |
627 | // |
626 | // Description: This function deinitialises the SDCard interface. |
628 | // Description: This function deinitialises the SDCard interface. |
627 | // |
629 | // |
628 | // |
630 | // |
629 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
631 | // Returnvalue: the function returns 0 if the deinitialisation was successfull otherwise the function returns an errorcode. |
630 | //________________________________________________________________________________________________________________________________________ |
632 | //________________________________________________________________________________________________________________________________________ |
631 | 633 | ||
632 | SD_Result_t SDC_Deinit(void) |
634 | SD_Result_t SDC_Deinit(void) |
633 | { |
635 | { |
634 | UART1_PutString("\r\n SDC deinit..."); |
636 | UART1_PutString("\r\n SDC deinit..."); |
635 | // SSC_Deinit(); |
637 | // SSC_Deinit(); |
636 | 638 | ||
637 | SDCardInfo.Valid = 0; |
639 | SDCardInfo.Valid = 0; |
638 | SDCardInfo.Capacity = 0; |
640 | SDCardInfo.Capacity = 0; |
639 | SDCardInfo.Version = VER_UNKNOWN; |
641 | SDCardInfo.Version = VER_UNKNOWN; |
640 | 642 | ||
641 | UART1_PutString("ok"); |
643 | UART1_PutString("ok"); |
642 | return(SD_SUCCESS); |
644 | return(SD_SUCCESS); |
643 | } |
645 | } |
644 | 646 | ||
645 | 647 | ||
646 | //________________________________________________________________________________________________________________________________________ |
648 | //________________________________________________________________________________________________________________________________________ |
647 | // Funtion: SDC_PutSector(void); |
649 | // Funtion: SDC_PutSector(void); |
648 | // |
650 | // |
649 | // Description: This function writes one sector of data to the SSC |
651 | // Description: This function writes one sector of data to the SSC |
650 | // |
652 | // |
651 | // |
653 | // |
652 | // Returnvalue: SD_Result_t |
654 | // Returnvalue: SD_Result_t |
653 | //________________________________________________________________________________________________________________________________________ |
655 | //________________________________________________________________________________________________________________________________________ |
654 | 656 | ||
655 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
657 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
656 | { |
658 | { |
657 | u8 rsp; |
659 | u8 rsp; |
658 | u16 a, crc16; |
660 | u16 a, crc16; |
659 | u16 timeout = 0; |
661 | u16 timeout = 0; |
660 | SD_Result_t result = SD_ERROR_UNKNOWN; |
662 | SD_Result_t result = SD_ERROR_UNKNOWN; |
661 | 663 | ||
662 | addr = addr << 9; // convert sectoradress to byteadress |
664 | addr = addr << 9; // convert sectoradress to byteadress |
663 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
665 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
664 | if (rsp != R1_NO_ERR) |
666 | if (rsp != R1_NO_ERR) |
665 | { |
667 | { |
666 | result = SD_ERROR_BAD_RESPONSE; |
668 | result = SD_ERROR_BAD_RESPONSE; |
667 | goto end; |
669 | goto end; |
668 | } |
670 | } |
669 | SSC_ClearRxFifo(); |
671 | SSC_ClearRxFifo(); |
670 | for (a=0;a<20;a++) // at least one byte |
672 | for (a=0;a<20;a++) // at least one byte |
671 | { |
673 | { |
672 | SSC_GetChar(); |
674 | SSC_GetChar(); |
673 | } |
675 | } |
674 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
676 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
675 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
677 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
676 | 678 | ||
677 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
679 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
678 | { |
680 | { |
679 | SSC_PutChar(Buffer[a]); |
681 | SSC_PutChar(Buffer[a]); |
680 | } |
682 | } |
681 | // write two bytes of crc16 to the sdcard |
683 | // write two bytes of crc16 to the sdcard |
682 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
684 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
683 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
685 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
684 | SSC_ClearRxFifo(); |
686 | SSC_ClearRxFifo(); |
685 | do // wait for data response token |
687 | do // wait for data response token |
686 | { |
688 | { |
687 | rsp = SSC_GetChar(); |
689 | rsp = SSC_GetChar(); |
688 | if(timeout++ > 500) |
690 | if(timeout++ > 500) |
689 | { |
691 | { |
690 | result = SD_ERROR_TIMEOUT; |
692 | result = SD_ERROR_TIMEOUT; |
691 | goto end; |
693 | goto end; |
692 | } |
694 | } |
693 | }while((rsp & 0x11) != 0x01 ); |
695 | }while((rsp & 0x11) != 0x01 ); |
694 | 696 | ||
695 | // analyse data response token |
697 | // analyse data response token |
696 | switch(rsp & DATA_RESPONSE_MASK) |
698 | switch(rsp & DATA_RESPONSE_MASK) |
697 | { |
699 | { |
698 | case DATA_RESPONSE_OK: |
700 | case DATA_RESPONSE_OK: |
699 | result = SD_SUCCESS; |
701 | result = SD_SUCCESS; |
700 | break; |
702 | break; |
701 | case DATA_RESPONSE_CRC_ERR: |
703 | case DATA_RESPONSE_CRC_ERR: |
702 | result = SD_ERROR_CRC_DATA; |
704 | result = SD_ERROR_CRC_DATA; |
703 | goto end; |
705 | goto end; |
704 | break; |
706 | break; |
705 | case DATA_RESPONSE_WRITE_ERR: |
707 | case DATA_RESPONSE_WRITE_ERR: |
706 | result = SD_ERROR_WRITE_DATA; |
708 | result = SD_ERROR_WRITE_DATA; |
707 | goto end; |
709 | goto end; |
708 | break; |
710 | break; |
709 | default: |
711 | default: |
710 | result = SD_ERROR_UNKNOWN; |
712 | result = SD_ERROR_UNKNOWN; |
711 | goto end; |
713 | goto end; |
712 | break; |
714 | break; |
713 | 715 | ||
714 | } |
716 | } |
715 | // wait 2 seconds until the sdcard is busy. |
717 | // wait 2 seconds until the sdcard is busy. |
716 | rsp = SDC_WaitForBusy(2000); |
718 | rsp = SDC_WaitForBusy(2000); |
717 | if(rsp != 0xFF) |
719 | if(rsp != 0xFF) |
718 | { |
720 | { |
719 | result = SD_ERROR_TIMEOUT; |
721 | result = SD_ERROR_TIMEOUT; |
720 | goto end; |
722 | goto end; |
721 | } |
723 | } |
722 | 724 | ||
723 | // check card status |
725 | // check card status |
724 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
726 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
725 | // first byte of R2 response is like R1 response |
727 | // first byte of R2 response is like R1 response |
726 | if(rsp != R1_NO_ERR) |
728 | if(rsp != R1_NO_ERR) |
727 | { |
729 | { |
728 | result = SD_ERROR_BAD_RESPONSE; |
730 | result = SD_ERROR_BAD_RESPONSE; |
729 | SSC_GetChar(); // read out 2nd byte |
731 | SSC_GetChar(); // read out 2nd byte |
730 | goto end; |
732 | goto end; |
731 | } |
733 | } |
732 | // 2nd byte of r2 response |
734 | // 2nd byte of r2 response |
733 | rsp = SSC_GetChar(); |
735 | rsp = SSC_GetChar(); |
734 | if(rsp != R2_NO_ERR) |
736 | if(rsp != R2_NO_ERR) |
735 | { |
737 | { |
736 | result = SD_ERROR_WRITE_DATA; |
738 | result = SD_ERROR_WRITE_DATA; |
737 | SSC_GetChar(); |
739 | SSC_GetChar(); |
738 | goto end; |
740 | goto end; |
739 | } |
741 | } |
740 | end: |
742 | end: |
741 | if(result != SD_SUCCESS) |
743 | if(result != SD_SUCCESS) |
742 | { |
744 | { |
743 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
745 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
744 | UART1_PutString(text); |
746 | UART1_PutString(text); |
745 | } |
747 | } |
746 | 748 | ||
747 | return(result); |
749 | return(result); |
748 | } |
750 | } |
749 | 751 | ||
750 | 752 | ||
751 | //________________________________________________________________________________________________________________________________________ |
753 | //________________________________________________________________________________________________________________________________________ |
752 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
754 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
753 | // |
755 | // |
754 | // Description: This function reads one sector of data from the SSC |
756 | // Description: This function reads one sector of data from the SSC |
755 | // |
757 | // |
756 | // |
758 | // |
757 | // Returnvalue: SD_Result_t |
759 | // Returnvalue: SD_Result_t |
758 | //________________________________________________________________________________________________________________________________________ |
760 | //________________________________________________________________________________________________________________________________________ |
759 | 761 | ||
760 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
762 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
761 | { |
763 | { |
762 | addr = addr << 9; // convert sectoradress to byteadress |
764 | addr = addr << 9; // convert sectoradress to byteadress |
763 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
765 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
764 | } |
766 | } |
765 | 767 | ||
766 | 768 | ||
767 | 769 | ||
768 | 770 |