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1 | /*#######################################################################################*/ |
1 | /*#######################################################################################*/ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
3 | /*#######################################################################################*/ |
3 | /*#######################################################################################*/ |
4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
5 | // + Copyright (c) 2008 Ingo Busker, Holger Buss |
5 | // + Copyright (c) 2008 Ingo Busker, Holger Buss |
6 | // + Nur für den privaten Gebrauch |
6 | // + Nur für den privaten Gebrauch |
7 | // + FOR NON COMMERCIAL USE ONLY |
7 | // + FOR NON COMMERCIAL USE ONLY |
8 | // + www.MikroKopter.com |
8 | // + www.MikroKopter.com |
9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
15 | // + Verkauf von Luftbildaufnahmen, usw. |
15 | // + Verkauf von Luftbildaufnahmen, usw. |
16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
22 | // + eindeutig als Ursprung verlinkt werden |
22 | // + eindeutig als Ursprung verlinkt werden |
23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
25 | // + Benutzung auf eigene Gefahr |
25 | // + Benutzung auf eigene Gefahr |
26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
28 | // + Die PORTIERUNG der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
28 | // + Die PORTIERUNG der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
29 | // + mit unserer Zustimmung zulässig |
29 | // + mit unserer Zustimmung zulässig |
30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
34 | // + this list of conditions and the following disclaimer. |
34 | // + this list of conditions and the following disclaimer. |
35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
36 | // + from this software without specific prior written permission. |
36 | // + from this software without specific prior written permission. |
37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
38 | // + for non-commercial use (directly or indirectly) |
38 | // + for non-commercial use (directly or indirectly) |
39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
40 | // + with our written permission |
40 | // + with our written permission |
41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
42 | // + clearly linked as origin |
42 | // + clearly linked as origin |
43 | // + * PORTING this software (or part of it) to systems (other than hardware from www.mikrokopter.de) is NOT allowed |
43 | // + * PORTING this software (or part of it) to systems (other than hardware from www.mikrokopter.de) is NOT allowed |
44 | // |
44 | // |
45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
55 | // + POSSIBILITY OF SUCH DAMAGE. |
55 | // + POSSIBILITY OF SUCH DAMAGE. |
56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
57 | #include <stdio.h> |
57 | #include <stdio.h> |
58 | #include <string.h> |
58 | #include <string.h> |
59 | #include "91x_lib.h" |
59 | #include "91x_lib.h" |
60 | #include "uart.h" |
60 | #include "uart.h" |
61 | #include "sdc.h" |
61 | #include "sdc.h" |
62 | #include "ssc.h" |
62 | #include "ssc.h" |
63 | #include "timer.h" |
63 | #include "timer.h" |
64 | #include "main.h" |
64 | #include "main.h" |
65 | #include "crc16.h" |
65 | #include "crc16.h" |
66 | 66 | ||
67 | //________________________________________________________________________________________________________________________________________ |
67 | //________________________________________________________________________________________________________________________________________ |
68 | // Module name: sdc.c |
68 | // Module name: sdc.c |
69 | // Compiler used: avr-gcc 3.4.5 |
69 | // Compiler used: avr-gcc 3.4.5 |
70 | // Last Modifikation: 08.06.2008 |
70 | // Last Modifikation: 08.06.2008 |
71 | // Version: 1.07 |
71 | // Version: 1.07 |
72 | // Authors: Stephan Busker, Gregor Stobrawa |
72 | // Authors: Stephan Busker, Gregor Stobrawa |
73 | // Description: Source files for connecting to an sd-card using the SSC |
73 | // Description: Source files for connecting to an sd-card using the SSC |
74 | // |
74 | // |
75 | //........................................................................................................................................ |
75 | //........................................................................................................................................ |
76 | // Functions: SD_Result_t SDC_init(void); |
76 | // Functions: SD_Result_t SDC_init(void); |
77 | // u8 SDC_PutCommand (u8 *cmd); |
77 | // u8 SDC_PutCommand (u8 *cmd); |
78 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
78 | // SD_Result_t SDC_PutSector(u32 addr,u8 *Buffer); |
79 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
79 | // SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer); |
80 | // |
80 | // |
81 | ////........................................................................................................................................ |
81 | ////........................................................................................................................................ |
82 | // ext. functions: extern void SSC_Init(void); |
82 | // ext. functions: extern void SSC_Init(void); |
83 | // extern u8 SSC_GetChar (void); |
83 | // extern u8 SSC_GetChar (void); |
84 | // extern void SSC_PutChar (u8); |
84 | // extern void SSC_PutChar (u8); |
85 | // extern void SSC_Enable(void); |
85 | // extern void SSC_Enable(void); |
86 | // extern void SSC_Disable(void); |
86 | // extern void SSC_Disable(void); |
87 | // extern void SSC_ClearRxFifo(); |
87 | // extern void SSC_ClearRxFifo(); |
88 | //........................................................................................................................................ |
88 | //........................................................................................................................................ |
89 | // |
89 | // |
90 | // URL: www.Mikro-Control.de |
90 | // URL: www.Mikro-Control.de |
91 | // mailto: stephan.busker@mikro-control.de |
91 | // mailto: stephan.busker@mikro-control.de |
92 | //________________________________________________________________________________________________________________________________________ |
92 | //________________________________________________________________________________________________________________________________________ |
93 | 93 | ||
94 | 94 | ||
95 | 95 | ||
96 | #define CMD_GO_IDLE_STATE 0x00 /* CMD00: response R1 */ |
96 | #define CMD_GO_IDLE_STATE 0x00 /* CMD00: response R1 */ |
97 | #define CMD_SEND_OP_COND 0x01 /* CMD01: response R1 */ |
97 | #define CMD_SEND_OP_COND 0x01 /* CMD01: response R1 */ |
98 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
98 | #define CMD_SEND_IF_COND 0x08 /* CMD08: response R7 */ |
99 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
99 | #define CMD_SEND_CSD 0x09 /* CMD09: response R1 */ |
100 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
100 | #define CMD_SEND_CID 0x0A /* CMD10: response R1 */ |
101 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
101 | #define CMD_SEND_STATUS 0x0D /* CMD13: response R2 */ |
102 | #define CMD_SET_BLOCKLEN 0x10 /* CMD16: arg0[31:0]: block length, response R1*/ |
102 | #define CMD_SET_BLOCKLEN 0x10 /* CMD16: arg0[31:0]: block length, response R1*/ |
103 | #define CMD_READ_SINGLE_BLOCK 0x11 /* CMD17: arg0[31:0]: data address, response R1 */ |
103 | #define CMD_READ_SINGLE_BLOCK 0x11 /* CMD17: arg0[31:0]: data address, response R1 */ |
104 | #define CMD_WRITE_SINGLE_BLOCK 0x18 /* CMD24: arg0[31:0]: data address, response R1 */ |
104 | #define CMD_WRITE_SINGLE_BLOCK 0x18 /* CMD24: arg0[31:0]: data address, response R1 */ |
105 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
105 | #define CMD_APP_CMD 0x37 /* CMD55: response R1 */ |
106 | #define CMD_READ_OCR 0x3A /* CMD58: response R3 */ |
106 | #define CMD_READ_OCR 0x3A /* CMD58: response R3 */ |
107 | #define CMD_CRC_ON_OFF 0x3B /* CMD59: arg0[31:1]: stuff bits, arg0[0:0]: crc option, response R1 */ |
107 | #define CMD_CRC_ON_OFF 0x3B /* CMD59: arg0[31:1]: stuff bits, arg0[0:0]: crc option, response R1 */ |
108 | #define ACMD_SEND_OP_COND 0x29 /* ACMD41: arg0[31]: stuff bits, arg0[30]: HCS, arg0[29:0] stuff bits*, response R1 */ |
108 | #define ACMD_SEND_OP_COND 0x29 /* ACMD41: arg0[31]: stuff bits, arg0[30]: HCS, arg0[29:0] stuff bits*, response R1 */ |
109 | 109 | ||
110 | #define R1_NO_ERR 0x00 |
110 | #define R1_NO_ERR 0x00 |
111 | #define R1_IDLE_STATE 0x01 |
111 | #define R1_IDLE_STATE 0x01 |
112 | #define R1_ERASE_RESET 0x02 |
112 | #define R1_ERASE_RESET 0x02 |
113 | #define R1_ILLEGAL_CMD 0x04 |
113 | #define R1_ILLEGAL_CMD 0x04 |
114 | #define R1_COM_CRC_ERR 0x08 |
114 | #define R1_COM_CRC_ERR 0x08 |
115 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
115 | #define R1_ERASE_SEQUENCE_ERR 0x10 |
116 | #define R1_ADDRESS_ERR 0x20 |
116 | #define R1_ADDRESS_ERR 0x20 |
117 | #define R1_PARAMETER_ERR 0x40 |
117 | #define R1_PARAMETER_ERR 0x40 |
118 | #define R1_BAD_RESPONSE 0x80 |
118 | #define R1_BAD_RESPONSE 0x80 |
119 | 119 | ||
120 | #define R2_NO_ERR 0x00 |
120 | #define R2_NO_ERR 0x00 |
121 | #define R2_CARD_LOCKED 0x01 |
121 | #define R2_CARD_LOCKED 0x01 |
122 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
122 | #define R2_ERASE_WRITE_PROT_ERR 0x02 |
123 | #define R2_UNKOWN_ERR 0x04 |
123 | #define R2_UNKOWN_ERR 0x04 |
124 | #define R2_CARD_CTRL_ERR 0x08 |
124 | #define R2_CARD_CTRL_ERR 0x08 |
125 | #define R2_CARD_ECC_ERR 0x10 |
125 | #define R2_CARD_ECC_ERR 0x10 |
126 | #define R2_WRITE_PROT_ERR 0x20 |
126 | #define R2_WRITE_PROT_ERR 0x20 |
127 | #define R2_ERASE_PARAM_ERR 0x40 |
127 | #define R2_ERASE_PARAM_ERR 0x40 |
128 | #define R2_OUT_OF_RANGE_ERR 0x80 |
128 | #define R2_OUT_OF_RANGE_ERR 0x80 |
129 | 129 | ||
130 | #define DATA_START_TOKEN 0xFE |
130 | #define DATA_START_TOKEN 0xFE |
131 | #define DATA_RESPONSE_MASK 0x1F |
131 | #define DATA_RESPONSE_MASK 0x1F |
132 | #define DATA_RESPONSE_OK 0x05 |
132 | #define DATA_RESPONSE_OK 0x05 |
133 | #define DATA_RESPONSE_CRC_ERR 0x0B |
133 | #define DATA_RESPONSE_CRC_ERR 0x0B |
134 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
134 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
135 | 135 | ||
136 | typedef enum |
136 | typedef enum |
137 | { |
137 | { |
138 | VER_UNKNOWN, |
138 | VER_UNKNOWN, |
139 | VER_1X, |
139 | VER_1X, |
140 | VER_20 |
140 | VER_20 |
141 | } SDVersion_t; |
141 | } SDVersion_t; |
142 | 142 | ||
143 | typedef struct |
143 | typedef struct |
144 | { |
144 | { |
145 | u8 Valid; |
145 | u8 Valid; |
146 | SDVersion_t Version; // HW-Version |
146 | SDVersion_t Version; // HW-Version |
147 | u32 Capacity; // Memory capacity in bytes |
147 | u32 Capacity; // Memory capacity in bytes |
148 | u8 CID[16]; // CID register |
148 | u8 CID[16]; // CID register |
149 | u8 CSD[16]; // CSD register |
149 | u8 CSD[16]; // CSD register |
150 | } __attribute__((packed)) SDCardInfo_t; |
150 | } __attribute__((packed)) SDCardInfo_t; |
151 | 151 | ||
152 | volatile SDCardInfo_t SDCardInfo; |
152 | volatile SDCardInfo_t SDCardInfo; |
153 | 153 | ||
154 | 154 | ||
155 | //________________________________________________________________________________________________________________________________________ |
155 | //________________________________________________________________________________________________________________________________________ |
156 | // Function: CRC7(u8* cmd, u32 len); |
156 | // Function: CRC7(u8* cmd, u32 len); |
157 | // |
157 | // |
158 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
158 | // Description: This function calculated the CRC7 checksum used in the last byte of a spi command frame. |
159 | // |
159 | // |
160 | // |
160 | // |
161 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
161 | // Returnvalue: the function returns the crc7 including bit 0 set to 1 |
162 | //________________________________________________________________________________________________________________________________________ |
162 | //________________________________________________________________________________________________________________________________________ |
163 | 163 | ||
164 | u8 CRC7(u8 * cmd, u32 len) |
164 | u8 CRC7(u8 * cmd, u32 len) |
165 | { |
165 | { |
166 | u8 i, a; |
166 | u8 i, a; |
167 | u8 crc, Data; |
167 | u8 crc, Data; |
168 | 168 | ||
169 | crc = 0; // init CRC buffer |
169 | crc = 0; // init CRC buffer |
170 | for (a = 0; a < len ;a++) // for every byte in the msg |
170 | for (a = 0; a < len ;a++) // for every byte in the msg |
171 | { |
171 | { |
172 | Data = cmd[a]; |
172 | Data = cmd[a]; |
173 | for (i=0;i<8;i++) // for every bit in the byte |
173 | for (i=0;i<8;i++) // for every bit in the byte |
174 | { |
174 | { |
175 | crc <<= 1; // shift crc |
175 | crc <<= 1; // shift crc |
176 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
176 | if ((Data & 0x80)^(crc & 0x80)) crc ^=0x09; //xor |
177 | Data <<= 1; // shift data for next bit |
177 | Data <<= 1; // shift data for next bit |
178 | } |
178 | } |
179 | } |
179 | } |
180 | crc = (crc<<1)|1; // set terminating bit to 1 |
180 | crc = (crc<<1)|1; // set terminating bit to 1 |
181 | return(crc); |
181 | return(crc); |
182 | } |
182 | } |
183 | 183 | ||
184 | u8 SDC_WaitForBusy() |
184 | u8 SDC_WaitForBusy() |
185 | { |
185 | { |
186 | u8 rsp = 0; |
186 | u8 rsp = 0; |
187 | u16 timeout=0; |
187 | u16 timeout=0; |
188 | 188 | ||
189 | SSC_ClearRxFifo(); |
189 | SSC_ClearRxFifo(); |
190 | SSC_Enable(); // enable chipselect. |
190 | SSC_Enable(); // enable chipselect. |
191 | do |
191 | do |
192 | { |
192 | { |
193 | rsp = SSC_GetChar(); |
193 | rsp = SSC_GetChar(); |
194 | if(timeout++>500) break; |
194 | if(timeout++>500) break; |
195 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
195 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
196 | return(rsp); |
196 | return(rsp); |
197 | } |
197 | } |
198 | 198 | ||
199 | 199 | ||
200 | 200 | ||
201 | //________________________________________________________________________________________________________________________________________ |
201 | //________________________________________________________________________________________________________________________________________ |
202 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
202 | // Function: SDC_SendCMDR1(u8 CmdNo, u32 arg); |
203 | // |
203 | // |
204 | // Description: This function send a command frame to the SD-Card in spi-mode. |
204 | // Description: This function send a command frame to the SD-Card in spi-mode. |
205 | // |
205 | // |
206 | // |
206 | // |
207 | // Returnvalue: The function returns the first response byte like for R1 commands |
207 | // Returnvalue: The function returns the first response byte like for R1 commands |
208 | //________________________________________________________________________________________________________________________________________ |
208 | //________________________________________________________________________________________________________________________________________ |
209 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
209 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
210 | { |
210 | { |
211 | u8 r1; |
211 | u8 r1; |
212 | u16 Timeout = 0; |
212 | u16 Timeout = 0; |
213 | u16 a; |
213 | u16 a; |
214 | u8 cmd[6]; |
214 | u8 cmd[6]; |
215 | 215 | ||
216 | SSC_ClearRxFifo(); // clear the rx fifo |
216 | SSC_ClearRxFifo(); // clear the rx fifo |
217 | SSC_Enable(); // enable chipselect. |
217 | SSC_Enable(); // enable chipselect. |
218 | SDC_WaitForBusy(); |
218 | SDC_WaitForBusy(); |
219 | SSC_ClearRxFifo(); // clear the rx fifo |
219 | SSC_ClearRxFifo(); // clear the rx fifo |
220 | SSC_GetChar(); // dummy to sync |
220 | SSC_GetChar(); // dummy to sync |
221 | 221 | ||
222 | /* Send cmd10 (SEND_CID) */; |
222 | /* Send cmd10 (SEND_CID) */; |
223 | cmd[0] = 0x40|CmdNo; // set command index |
223 | cmd[0] = 0x40|CmdNo; // set command index |
224 | cmd[1] = (arg & 0xFF000000)>>24; |
224 | cmd[1] = (arg & 0xFF000000)>>24; |
225 | cmd[2] = (arg & 0x00FF0000)>>16; |
225 | cmd[2] = (arg & 0x00FF0000)>>16; |
226 | cmd[3] = (arg & 0x0000FF00)>>8; |
226 | cmd[3] = (arg & 0x0000FF00)>>8; |
227 | cmd[4] = (arg & 0x000000FF); |
227 | cmd[4] = (arg & 0x000000FF); |
228 | cmd[5] = CRC7(cmd, 5); // update checksum |
228 | cmd[5] = CRC7(cmd, 5); // update checksum |
229 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
229 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
230 | { |
230 | { |
231 | SSC_PutChar(cmd[a]); |
231 | SSC_PutChar(cmd[a]); |
232 | } |
232 | } |
233 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
233 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
234 | do |
234 | do |
235 | { |
235 | { |
236 | r1 = SSC_GetChar(); // get byte from sd-card |
236 | r1 = SSC_GetChar(); // get byte from sd-card |
237 | if (Timeout++ > 500) return(r1); |
237 | if (Timeout++ > 500) return(r1); |
238 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
238 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
239 | return(r1); |
239 | return(r1); |
240 | } |
240 | } |
241 | 241 | ||
242 | 242 | ||
243 | //________________________________________________________________________________________________________________________________________ |
243 | //________________________________________________________________________________________________________________________________________ |
244 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
244 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
245 | // |
245 | // |
246 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
246 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
247 | // |
247 | // |
248 | // |
248 | // |
249 | // Returnvalue: The function returns the first response byte like for R1 commands |
249 | // Returnvalue: The function returns the first response byte like for R1 commands |
250 | //________________________________________________________________________________________________________________________________________ |
250 | //________________________________________________________________________________________________________________________________________ |
251 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
251 | u8 SDC_SendACMDR1(u8 CmdNo, u32 arg) |
252 | { |
252 | { |
253 | u8 r1 = 0xFF; |
253 | u8 r1 = 0xFF; |
254 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
254 | r1 = SDC_SendCMDR1(CMD_APP_CMD, 0UL); |
255 | if(r1 & R1_BAD_RESPONSE) return(r1); |
255 | if(r1 & R1_BAD_RESPONSE) return(r1); |
256 | r1 = SDC_SendCMDR1(CmdNo, arg); |
256 | r1 = SDC_SendCMDR1(CmdNo, arg); |
257 | return(r1); |
257 | return(r1); |
258 | } |
258 | } |
259 | 259 | ||
260 | 260 | ||
261 | //________________________________________________________________________________________________________________________________________ |
261 | //________________________________________________________________________________________________________________________________________ |
262 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
262 | // Function: SDC_GetData(u8 * cmd ,u8 *Buffer, u32 len); |
263 | // |
263 | // |
264 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
264 | // Description: This function sneds cmd an reads a datablock of len from the sd-card |
265 | // |
265 | // |
266 | // |
266 | // |
267 | // Returnvalue: SD_Result_t |
267 | // Returnvalue: SD_Result_t |
268 | //________________________________________________________________________________________________________________________________________ |
268 | //________________________________________________________________________________________________________________________________________ |
269 | 269 | ||
270 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
270 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
271 | { |
271 | { |
272 | u8 rsp; |
272 | u8 rsp; |
273 | u16 timeout; |
273 | u16 timeout; |
274 | u16 a, Crc16; |
274 | u16 a, Crc16; |
275 | SD_Result_t result = SD_ERROR_UNKNOWN; |
275 | SD_Result_t result = SD_ERROR_UNKNOWN; |
276 | 276 | ||
277 | // send the command |
277 | // send the command |
278 | rsp = SDC_SendCMDR1(CmdNo, addr); |
278 | rsp = SDC_SendCMDR1(CmdNo, addr); |
279 | if (rsp != R1_NO_ERR) |
279 | if (rsp != R1_NO_ERR) |
280 | { |
280 | { |
281 | result = SD_ERROR_BAD_RESPONSE; |
281 | result = SD_ERROR_BAD_RESPONSE; |
282 | goto end; |
282 | goto end; |
283 | } |
283 | } |
284 | SSC_ClearRxFifo(); |
284 | SSC_ClearRxFifo(); |
285 | do |
285 | do |
286 | { |
286 | { |
287 | rsp = SSC_GetChar(); |
287 | rsp = SSC_GetChar(); |
288 | if((rsp & 0xF0) == 0x00) // data error token |
288 | if((rsp & 0xF0) == 0x00) // data error token |
289 | { |
289 | { |
290 | result = SD_ERROR_READ_DATA; |
290 | result = SD_ERROR_READ_DATA; |
291 | goto end; |
291 | goto end; |
292 | } |
292 | } |
293 | // if(timeout++>500) break; |
293 | // if(timeout++>500) break; |
294 | }while(rsp != DATA_START_TOKEN); |
294 | }while(rsp != DATA_START_TOKEN); |
295 | // data start token received |
295 | // data start token received |
296 | for (a = 0; a < len; a++) // read the block from the SSC |
296 | for (a = 0; a < len; a++) // read the block from the SSC |
297 | { |
297 | { |
298 | Buffer[a] = SSC_GetChar(); |
298 | Buffer[a] = SSC_GetChar(); |
299 | } |
299 | } |
300 | // Read two bytes CRC16-Data checksum |
300 | // Read two bytes CRC16-Data checksum |
301 | Crc16 = SSC_GetChar(); // highbyte fisrt |
301 | Crc16 = SSC_GetChar(); // highbyte fisrt |
302 | Crc16 = (Crc16<<8)|SSC_GetChar(); // lowbyte last |
302 | Crc16 = (Crc16<<8)|SSC_GetChar(); // lowbyte last |
303 | // if(Crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
303 | // if(Crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
304 | /* else */result = SD_SUCCESS; |
304 | /* else */result = SD_SUCCESS; |
305 | 305 | ||
306 | end: |
306 | end: |
307 | //SSC_Disable(); // disable sdcard. |
307 | //SSC_Disable(); // disable sdcard. |
308 | if(result != SD_SUCCESS) |
308 | if(result != SD_SUCCESS) |
309 | { |
309 | { |
310 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
310 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
311 | SerialPutString(text); |
311 | SerialPutString(text); |
312 | } |
312 | } |
313 | return(result); |
313 | return(result); |
314 | } |
314 | } |
315 | 315 | ||
316 | 316 | ||
317 | //________________________________________________________________________________________________________________________________________ |
317 | //________________________________________________________________________________________________________________________________________ |
318 | // Function: SDC_PrintCID(u8 * pCID); |
318 | // Function: SDC_PrintCID(u8 * pCID); |
319 | // |
319 | // |
320 | // Description: This function prints the CIS register in a human readable format. |
320 | // Description: This function prints the CIS register in a human readable format. |
321 | // |
321 | // |
322 | // |
322 | // |
323 | // Returnvalue: the function returns nothing |
323 | // Returnvalue: the function returns nothing |
324 | //________________________________________________________________________________________________________________________________________ |
324 | //________________________________________________________________________________________________________________________________________ |
325 | 325 | ||
326 | void SDC_PrintCID(u8 * pCID) |
326 | void SDC_PrintCID(u8 * pCID) |
327 | { |
327 | { |
328 | u8 text[50]; |
328 | u8 text[50]; |
329 | u8 pn[6]; |
329 | u8 pn[6]; |
330 | u16 temp1, temp2; |
330 | u16 temp1, temp2; |
331 | 331 | ||
332 | sprintf(text, "\r\nManufacturer ID: %i\r\n", pCID[0]); |
332 | sprintf(text, "\r\nManufacturer ID: %i\r\n", pCID[0]); |
333 | SerialPutString(text); |
333 | SerialPutString(text); |
334 | memcpy(pn, &pCID[1], 2); |
334 | memcpy(pn, &pCID[1], 2); |
335 | pn[2] = '\0'; // terminate string |
335 | pn[2] = '\0'; // terminate string |
336 | sprintf(text, "Application ID: %s\r\n",pn); |
336 | sprintf(text, "Application ID: %s\r\n",pn); |
337 | SerialPutString(text); |
337 | SerialPutString(text); |
338 | memcpy(pn, &pCID[3], 5); |
338 | memcpy(pn, &pCID[3], 5); |
339 | pn[5] = '\0'; // terminate string |
339 | pn[5] = '\0'; // terminate string |
340 | sprintf(text, "Product Name: %s\r\n",pn); |
340 | sprintf(text, "Product Name: %s\r\n",pn); |
341 | SerialPutString(text); |
341 | SerialPutString(text); |
342 | sprintf(text, "Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
342 | sprintf(text, "Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
343 | SerialPutString(text); |
343 | SerialPutString(text); |
344 | SerialPutString("Serial No.: "); |
344 | SerialPutString("Serial No.: "); |
345 | for(temp1 = 0; temp1<4; temp1++) |
345 | for(temp1 = 0; temp1<4; temp1++) |
346 | { |
346 | { |
347 | sprintf(text,"%02X", pCID[9+temp1]); |
347 | sprintf(text,"%02X", pCID[9+temp1]); |
348 | SerialPutString(text); |
348 | SerialPutString(text); |
349 | } |
349 | } |
350 | SerialPutString("\r\n"); |
350 | SerialPutString("\r\n"); |
351 | temp1 = pCID[14] & 0x0F; // month |
351 | temp1 = pCID[14] & 0x0F; // month |
352 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
352 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
353 | sprintf(text, "Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
353 | sprintf(text, "Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
354 | SerialPutString(text); |
354 | SerialPutString(text); |
355 | } |
355 | } |
356 | 356 | ||
357 | //________________________________________________________________________________________________________________________________________ |
357 | //________________________________________________________________________________________________________________________________________ |
358 | // Funtion: SDC_GetCID(u8 * pCID); |
358 | // Funtion: SDC_GetCID(u8 * pCID); |
359 | // |
359 | // |
360 | // Description: This function reads the CIS register form the sd card in spi mode. |
360 | // Description: This function reads the CIS register form the sd card in spi mode. |
361 | // |
361 | // |
362 | // |
362 | // |
363 | // Returnvalue: the function returns error state |
363 | // Returnvalue: the function returns error state |
364 | //________________________________________________________________________________________________________________________________________ |
364 | //________________________________________________________________________________________________________________________________________ |
365 | 365 | ||
366 | SD_Result_t SDC_GetCID(u8 * pCID) |
366 | SD_Result_t SDC_GetCID(u8 * pCID) |
367 | { |
367 | { |
368 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
368 | return SDC_GetData(CMD_SEND_CID, 0UL, pCID, 16); |
369 | } |
369 | } |
370 | 370 | ||
371 | //________________________________________________________________________________________________________________________________________ |
371 | //________________________________________________________________________________________________________________________________________ |
372 | // Funtion: SDC_GetCSD(u8 * pCSD); |
372 | // Funtion: SDC_GetCSD(u8 * pCSD); |
373 | // |
373 | // |
374 | // Description: This function reads the CSD register form the sd card in spi mode. |
374 | // Description: This function reads the CSD register form the sd card in spi mode. |
375 | // |
375 | // |
376 | // |
376 | // |
377 | // Returnvalue: the function returns error state |
377 | // Returnvalue: the function returns error state |
378 | //________________________________________________________________________________________________________________________________________ |
378 | //________________________________________________________________________________________________________________________________________ |
379 | 379 | ||
380 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
380 | SD_Result_t SDC_GetCSD(u8 * pCSD) |
381 | { |
381 | { |
382 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
382 | return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
383 | } |
383 | } |
384 | 384 | ||
385 | 385 | ||
386 | //________________________________________________________________________________________________________________________________________ |
386 | //________________________________________________________________________________________________________________________________________ |
387 | // Funtion: SDC_Init(void); |
387 | // Funtion: SDC_Init(void); |
388 | // |
388 | // |
389 | // Description: This function initialises the SDCard to spi-mode. |
389 | // Description: This function initialises the SDCard to spi-mode. |
390 | // |
390 | // |
391 | // |
391 | // |
392 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
392 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
393 | //________________________________________________________________________________________________________________________________________ |
393 | //________________________________________________________________________________________________________________________________________ |
394 | 394 | ||
395 | SD_Result_t SDC_Init(void) |
395 | SD_Result_t SDC_Init(void) |
396 | { |
396 | { |
397 | u32 Timeout = 0; |
397 | u32 Timeout = 0; |
398 | u8 text[50]; |
398 | u8 text[50]; |
399 | u8 rsp[6]; // SD-SPI response buffer |
399 | u8 rsp[6]; // SD-SPI response buffer |
400 | SD_Result_t result = SD_ERROR_UNKNOWN; |
400 | SD_Result_t result = SD_ERROR_UNKNOWN; |
401 | 401 | ||
402 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
402 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
403 | { |
403 | { |
404 | SerialPutString("\r\n SSC init..."); |
404 | SerialPutString("\r\n SSC init..."); |
405 | SSC_Init(); |
405 | SSC_Init(); |
406 | SerialPutString("ok"); |
406 | SerialPutString("ok"); |
407 | 407 | ||
408 | SerialPutString("\r\n SDC init..."); |
408 | SerialPutString("\r\n SDC init..."); |
409 | SDCardInfo.Valid = 0; |
409 | SDCardInfo.Valid = 0; |
410 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
410 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
411 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
411 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
412 | mode, CS shall be held to high during 74 clock cycles. */ |
412 | mode, CS shall be held to high during 74 clock cycles. */ |
413 | SSC_Disable(); // set SD_CS high |
413 | SSC_Disable(); // set SD_CS high |
414 | SSC_ClearRxFifo(); // clear the rx fifo |
414 | SSC_ClearRxFifo(); // clear the rx fifo |
415 | 415 | ||
416 | for (Timeout = 0; Timeout < 15; Timeout++) // 15*8 = 120 cycles |
416 | for (Timeout = 0; Timeout < 15; Timeout++) // 15*8 = 120 cycles |
417 | { |
417 | { |
418 | SSC_PutChar(0xFF); |
418 | SSC_PutChar(0xFF); |
419 | } |
419 | } |
420 | 420 | ||
421 | // switch to idle state |
421 | // switch to idle state |
422 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
422 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
423 | { |
423 | { |
424 | if (Timeout++ > 20) |
424 | if (Timeout++ > 20) |
425 | { |
425 | { |
426 | SerialPutString("reset timeout"); |
426 | SerialPutString("reset timeout"); |
427 | result = SD_ERROR_RESET; |
427 | result = SD_ERROR_RESET; |
428 | goto end; |
428 | goto end; |
429 | } |
429 | } |
430 | } |
430 | } |
431 | // enable crc feature |
431 | // enable crc feature |
432 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
432 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
433 | { |
433 | { |
434 | sprintf(text,"Bad cmd59 R1=%02X.\r\n", rsp[0]); |
434 | sprintf(text,"Bad cmd59 R1=%02X.\r\n", rsp[0]); |
435 | SerialPutString(text); |
435 | SerialPutString(text); |
436 | result = SD_ERROR_BAD_RESPONSE; |
436 | result = SD_ERROR_BAD_RESPONSE; |
437 | goto end; |
437 | goto end; |
438 | }*/ |
438 | }*/ |
439 | // check for card hw version |
439 | // check for card hw version |
440 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
440 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
441 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
441 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
442 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
442 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
443 | if(rsp[0] & R1_BAD_RESPONSE) |
443 | if(rsp[0] & R1_BAD_RESPONSE) |
444 | { |
444 | { |
445 | sprintf(text,"Bad cmd8 R1=%02X.\r\n", rsp[0]); |
445 | sprintf(text,"Bad cmd8 R1=%02X.\r\n", rsp[0]); |
446 | SerialPutString(text); |
446 | SerialPutString(text); |
447 | result = SD_ERROR_BAD_RESPONSE; |
447 | result = SD_ERROR_BAD_RESPONSE; |
448 | goto end; |
448 | goto end; |
449 | } |
449 | } |
450 | if(rsp[0] & R1_ILLEGAL_CMD) |
450 | if(rsp[0] & R1_ILLEGAL_CMD) |
451 | { |
451 | { |
452 | //Ver1.X SD Memory Card or not a SD Memory Card |
452 | //Ver1.X SD Memory Card or not a SD Memory Card |
453 | SDCardInfo.Version = VER_1X; |
453 | SDCardInfo.Version = VER_1X; |
454 | } |
454 | } |
455 | else |
455 | else |
456 | { |
456 | { |
457 | // Ver2.00 or later SD Memory Card |
457 | // Ver2.00 or later SD Memory Card |
458 | // reading the remaining bytes of the R7 response |
458 | // reading the remaining bytes of the R7 response |
459 | SDCardInfo.Version = VER_20; |
459 | SDCardInfo.Version = VER_20; |
460 | for(Timeout = 1; Timeout < 5; Timeout++) |
460 | for(Timeout = 1; Timeout < 5; Timeout++) |
461 | { |
461 | { |
462 | rsp[Timeout] = SSC_GetChar(); |
462 | rsp[Timeout] = SSC_GetChar(); |
463 | } |
463 | } |
464 | //check pattern |
464 | //check pattern |
465 | if(rsp[4]!= 0xAA) |
465 | if(rsp[4]!= 0xAA) |
466 | { |
466 | { |
467 | SerialPutString("Bad cmd8 R7 check pattern.\r\n"); |
467 | SerialPutString("Bad cmd8 R7 check pattern.\r\n"); |
468 | result = SD_ERROR_BAD_RESPONSE; |
468 | result = SD_ERROR_BAD_RESPONSE; |
469 | goto end; |
469 | goto end; |
470 | } |
470 | } |
471 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
471 | if ( (rsp[3] & 0x0F)!= 0x01 ) // voltage range is not 2.7-3.6V |
472 | { |
472 | { |
473 | 473 | ||
474 | SerialPutString("Card is incompatible to 3.3V.\r\n"); |
474 | SerialPutString("Card is incompatible to 3.3V.\r\n"); |
475 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
475 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
476 | goto end; |
476 | goto end; |
477 | } |
477 | } |
478 | } |
478 | } |
479 | 479 | ||
480 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
480 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
481 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
481 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
482 | if(rsp[0] & R1_BAD_RESPONSE) |
482 | if(rsp[0] & R1_BAD_RESPONSE) |
483 | { |
483 | { |
484 | sprintf(text,"Bad cmd58 R1 %02x.\r\n", rsp[0]); |
484 | sprintf(text,"Bad cmd58 R1 %02x.\r\n", rsp[0]); |
485 | SerialPutString(text); |
485 | SerialPutString(text); |
486 | result = SD_ERROR_BAD_RESPONSE; |
486 | result = SD_ERROR_BAD_RESPONSE; |
487 | goto end; |
487 | goto end; |
488 | } |
488 | } |
489 | if(rsp[0] & R1_ILLEGAL_CMD) |
489 | if(rsp[0] & R1_ILLEGAL_CMD) |
490 | { |
490 | { |
491 | SerialPutString("Not an SD-CARD.\r\n"); |
491 | SerialPutString("Not an SD-CARD.\r\n"); |
492 | result = SD_ERROR_NO_SDCARD; |
492 | result = SD_ERROR_NO_SDCARD; |
493 | goto end; |
493 | goto end; |
494 | } |
494 | } |
495 | // read 4 bytes of OCR register |
495 | // read 4 bytes of OCR register |
496 | for(Timeout = 1; Timeout < 5; Timeout++) |
496 | for(Timeout = 1; Timeout < 5; Timeout++) |
497 | { |
497 | { |
498 | rsp[Timeout] = SSC_GetChar(); |
498 | rsp[Timeout] = SSC_GetChar(); |
499 | } |
499 | } |
500 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
500 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
501 | if((rsp[2] & 0x30) != 0x30) |
501 | if((rsp[2] & 0x30) != 0x30) |
502 | { |
502 | { |
503 | // supply voltage is not supported by sd-card |
503 | // supply voltage is not supported by sd-card |
504 | SerialPutString("Card is incompatible to 3.3V.\r\n"); |
504 | SerialPutString("Card is incompatible to 3.3V.\r\n"); |
505 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
505 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
506 | goto end; |
506 | goto end; |
507 | } |
507 | } |
508 | 508 | ||
509 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
509 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
510 | Timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
510 | Timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
511 | do |
511 | do |
512 | { |
512 | { |
513 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
513 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
514 | if(rsp[0] & R1_BAD_RESPONSE) |
514 | if(rsp[0] & R1_BAD_RESPONSE) |
515 | { |
515 | { |
516 | sprintf(text,"Bad Acmd41 R1=%02X.\r\n", rsp[0]); |
516 | sprintf(text,"Bad Acmd41 R1=%02X.\r\n", rsp[0]); |
517 | SerialPutString(text); |
517 | SerialPutString(text); |
518 | result = SD_ERROR_BAD_RESPONSE; |
518 | result = SD_ERROR_BAD_RESPONSE; |
519 | goto end; |
519 | goto end; |
520 | } |
520 | } |
521 | if(CheckDelay(Timeout)) |
521 | if(CheckDelay(Timeout)) |
522 | { |
522 | { |
523 | SerialPutString("Init timeout.\r\n"); |
523 | SerialPutString("Init timeout.\r\n"); |
524 | result = SD_ERROR_INITIALIZE; |
524 | result = SD_ERROR_INITIALIZE; |
525 | goto end; |
525 | goto end; |
526 | } |
526 | } |
527 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
527 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
528 | 528 | ||
529 | if(rsp[0] != R1_NO_ERR) |
529 | if(rsp[0] != R1_NO_ERR) |
530 | { |
530 | { |
531 | SerialPutString("Init error.\r\n"); |
531 | SerialPutString("Init error.\r\n"); |
532 | result = SD_ERROR_INITIALIZE; |
532 | result = SD_ERROR_INITIALIZE; |
533 | goto end; |
533 | goto end; |
534 | } |
534 | } |
535 | /* set block size to 512 bytes */ |
535 | /* set block size to 512 bytes */ |
536 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
536 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
537 | { |
537 | { |
538 | SerialPutString("Error setting block length to 512.\r\n"); |
538 | SerialPutString("Error setting block length to 512.\r\n"); |
539 | result = SD_ERROR_SET_BLOCKLEN; |
539 | result = SD_ERROR_SET_BLOCKLEN; |
540 | goto end; |
540 | goto end; |
541 | } |
541 | } |
542 | 542 | ||
543 | 543 | ||
544 | //SSC_Disable(); // set SD_CS high |
544 | //SSC_Disable(); // set SD_CS high |
545 | // here is the right place to inrease the SPI boud rate to maximum |
545 | // here is the right place to inrease the SPI boud rate to maximum |
546 | //SSC_Enable(); // set SD_CS high |
546 | //SSC_Enable(); // set SD_CS high |
547 | 547 | ||
548 | // read CID register |
548 | // read CID register |
549 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
549 | result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
550 | if(result != SD_SUCCESS) |
550 | if(result != SD_SUCCESS) |
551 | { |
551 | { |
552 | SerialPutString("Error reading CID.\r\n"); |
552 | SerialPutString("Error reading CID.\r\n"); |
553 | goto end; |
553 | goto end; |
554 | } |
554 | } |
555 | 555 | ||
556 | // read CSD register |
556 | // read CSD register |
557 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
557 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
558 | if(result != SD_SUCCESS) |
558 | if(result != SD_SUCCESS) |
559 | { |
559 | { |
560 | SerialPutString("Error reading CSD.\r\n"); |
560 | SerialPutString("Error reading CSD.\r\n"); |
561 | goto end; |
561 | goto end; |
562 | } |
562 | } |
563 | 563 | ||
564 | SerialPutString("ok\r\n"); |
564 | SerialPutString("ok\r\n"); |
565 | 565 | ||
566 | u8 c_size_mult, read_bl_len; |
566 | u8 c_size_mult, read_bl_len; |
567 | u32 c_size; |
567 | u32 c_size; |
568 | 568 | ||
569 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
569 | switch(SDCardInfo.CSD[0]>>6) // check CSD Version |
570 | { |
570 | { |
571 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
571 | case 0x00: // if CSD is V1.0 structure (2GB limit) |
572 | 572 | ||
573 | /* |
573 | /* |
574 | memory capacity = BLOCKNR * BLOCK_LEN |
574 | memory capacity = BLOCKNR * BLOCK_LEN |
575 | BLOCKNR = (C_SIZE+1) * MULT |
575 | BLOCKNR = (C_SIZE+1) * MULT |
576 | MULT = 2^(C_SIZE_MULT+2) |
576 | MULT = 2^(C_SIZE_MULT+2) |
577 | BLOCK_LEN = 2^READ_BL_LEN |
577 | BLOCK_LEN = 2^READ_BL_LEN |
578 | |
578 | |
579 | C_SIZE is 12 bits [73:62] in CSD register |
579 | C_SIZE is 12 bits [73:62] in CSD register |
580 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
580 | C_SIZE_MULT is 3 bits [49:47] in CSD register |
581 | READ_BL_LEN is 4 bits [83:80] in CSD register |
581 | READ_BL_LEN is 4 bits [83:80] in CSD register |
582 | */ |
582 | */ |
583 | 583 | ||
584 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
584 | read_bl_len = (SDCardInfo.CSD[5] & 0x0F); //CSD[05] -> [87:80] |
585 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
585 | c_size = ((u32)(SDCardInfo.CSD[6] & 0x03))<<10; //CSD[06] -> [79:72] |
586 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
586 | c_size |= ((u32)SDCardInfo.CSD[7])<<2; //CSD[07] -> [71:64] |
587 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
587 | c_size |= (u32)(SDCardInfo.CSD[8]>>6); //CSD[08] -> [63:56] |
588 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
588 | c_size_mult = (SDCardInfo.CSD[9] & 0x03)<<1; //CSD[09] -> [55:48] |
589 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
589 | c_size_mult |=(SDCardInfo.CSD[10] & 0x80)>>7; //CSD[10] -> [47:40] |
590 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
590 | SDCardInfo.Capacity = (u32)(c_size+1)*(1L<<(c_size_mult+2))*(1L<<read_bl_len); |
591 | break; |
591 | break; |
592 | 592 | ||
593 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
593 | case 0x01: // if CSD is V2.0 structure (HC SD-Card > 2GB) |
594 | 594 | ||
595 | /* |
595 | /* |
596 | memory capacity = (C_SIZE+1) * 512K byte |
596 | memory capacity = (C_SIZE+1) * 512K byte |
597 | C_SIZE is 22 bits [69:48] in CSR register |
597 | C_SIZE is 22 bits [69:48] in CSR register |
598 | */ |
598 | */ |
599 | 599 | ||
600 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
600 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
601 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
601 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
602 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
602 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
603 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
603 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
604 | break; |
604 | break; |
605 | - | ||
606 | default: //unknown CSD Version |
605 | default: //unknown CSD Version |
607 | SDCardInfo.Capacity = 0; |
606 | SDCardInfo.Capacity = 0; |
608 | break; |
607 | break; |
609 | } |
608 | } |
610 | 609 | ||
611 | switch(SDCardInfo.Version) |
610 | switch(SDCardInfo.Version) |
612 | { |
611 | { |
613 | case VER_1X: |
612 | case VER_1X: |
614 | SerialPutString(" SD-CARD V1.x"); |
613 | SerialPutString(" SD-CARD V1.x"); |
615 | break; |
614 | break; |
616 | case VER_20: |
615 | case VER_20: |
617 | SerialPutString(" SD-CARD V2.0 or later"); |
616 | SerialPutString(" SD-CARD V2.0 or later"); |
618 | default: |
617 | default: |
619 | break; |
618 | break; |
620 | } |
619 | } |
621 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
620 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
622 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
621 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
623 | SerialPutString(text); |
622 | SerialPutString(text); |
624 | 623 | ||
625 | // SDC_PrintCID((u8 *)&SDCardInfo.CID); |
624 | // SDC_PrintCID((u8 *)&SDCardInfo.CID); |
626 | SDCardInfo.Valid = 1; |
625 | SDCardInfo.Valid = 1; |
627 | 626 | ||
628 | // jump point for error condition before |
627 | // jump point for error condition before |
629 | end: |
628 | end: |
630 | SSC_Disable(); |
629 | SSC_Disable(); |
631 | } |
630 | } |
632 | else |
631 | else |
633 | { |
632 | { |
634 | //SerialPutString("\r\nNo Card in Slot."); |
633 | //SerialPutString("\r\nNo Card in Slot."); |
635 | SSC_Deinit(); |
634 | SSC_Deinit(); |
636 | SDCardInfo.Valid = 0; |
635 | SDCardInfo.Valid = 0; |
637 | result = SD_ERROR_NOCARD; |
636 | result = SD_ERROR_NOCARD; |
638 | } |
637 | } |
639 | if(result != SD_SUCCESS) SerialPutString("nok"); |
638 | // if(result != SD_SUCCESS) SerialPutString("nok "); |
640 | 639 | ||
641 | return(result); |
640 | return(result); |
642 | } |
641 | } |
643 | 642 | ||
644 | 643 | ||
645 | //________________________________________________________________________________________________________________________________________ |
644 | //________________________________________________________________________________________________________________________________________ |
646 | // Funtion: SDC_Deinit(void); |
645 | // Funtion: SDC_Deinit(void); |
647 | // |
646 | // |
648 | // Description: This function deinitialises the SDCard interface. |
647 | // Description: This function deinitialises the SDCard interface. |
649 | // |
648 | // |
650 | // |
649 | // |
651 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
650 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
652 | //________________________________________________________________________________________________________________________________________ |
651 | //________________________________________________________________________________________________________________________________________ |
653 | 652 | ||
654 | SD_Result_t SDC_Deinit(void) |
653 | SD_Result_t SDC_Deinit(void) |
655 | { |
654 | { |
656 | SerialPutString("SDC deinit..."); |
655 | SerialPutString("SDC deinit..."); |
657 | SSC_Deinit(); |
656 | SSC_Deinit(); |
658 | 657 | ||
659 | SDCardInfo.Valid = 0; |
658 | SDCardInfo.Valid = 0; |
660 | SDCardInfo.Capacity = 0; |
659 | SDCardInfo.Capacity = 0; |
661 | SDCardInfo.Version = VER_UNKNOWN; |
660 | SDCardInfo.Version = VER_UNKNOWN; |
662 | 661 | ||
663 | SerialPutString("ok\r\n"); |
662 | SerialPutString("ok\r\n"); |
664 | return(SD_SUCCESS); |
663 | return(SD_SUCCESS); |
665 | } |
664 | } |
666 | 665 | ||
667 | 666 | ||
668 | //________________________________________________________________________________________________________________________________________ |
667 | //________________________________________________________________________________________________________________________________________ |
669 | // Funtion: SDC_PutSector(void); |
668 | // Funtion: SDC_PutSector(void); |
670 | // |
669 | // |
671 | // Description: This function writes one sector of data to the SSC |
670 | // Description: This function writes one sector of data to the SSC |
672 | // |
671 | // |
673 | // |
672 | // |
674 | // Returnvalue: SD_Result_t |
673 | // Returnvalue: SD_Result_t |
675 | //________________________________________________________________________________________________________________________________________ |
674 | //________________________________________________________________________________________________________________________________________ |
676 | 675 | ||
677 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
676 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
678 | { |
677 | { |
679 | u8 rsp; |
678 | u8 rsp; |
680 | u16 timeout = 0; |
679 | u16 timeout = 0; |
681 | u16 a, Crc16; |
680 | u16 a, Crc16; |
682 | //u32 Timeout = 0; |
681 | //u32 Timeout = 0; |
683 | SD_Result_t result = SD_ERROR_UNKNOWN; |
682 | SD_Result_t result = SD_ERROR_UNKNOWN; |
684 | 683 | ||
685 | addr = addr << 9; // convert sectoradress to byteadress |
684 | addr = addr << 9; // convert sectoradress to byteadress |
686 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
685 | rsp = SDC_SendCMDR1(CMD_WRITE_SINGLE_BLOCK, addr); |
687 | if (rsp != R1_NO_ERR) |
686 | if (rsp != R1_NO_ERR) |
688 | { |
687 | { |
689 | result = SD_ERROR_BAD_RESPONSE; |
688 | result = SD_ERROR_BAD_RESPONSE; |
690 | goto end; |
689 | goto end; |
691 | } |
690 | } |
692 | SSC_ClearRxFifo(); |
691 | SSC_ClearRxFifo(); |
693 | for (a=0;a<20;a++) // at least one byte |
692 | for (a=0;a<20;a++) // at least one byte |
694 | { |
693 | { |
695 | SSC_GetChar(); |
694 | SSC_GetChar(); |
696 | } |
695 | } |
697 | Crc16 = CRC16(Buffer, 512); // calc checksum for data block |
696 | Crc16 = CRC16(Buffer, 512); // calc checksum for data block |
698 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
697 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
699 | 698 | ||
700 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
699 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
701 | { |
700 | { |
702 | SSC_PutChar(Buffer[a]); |
701 | SSC_PutChar(Buffer[a]); |
703 | } |
702 | } |
704 | // write two bytes of crc16 to the sdcard |
703 | // write two bytes of crc16 to the sdcard |
705 | SSC_PutChar((u8)(Crc16>>8)); // write high byte first |
704 | SSC_PutChar((u8)(Crc16>>8)); // write high byte first |
706 | SSC_PutChar((u8)(0x00FF&Crc16)); // lowbyte last |
705 | SSC_PutChar((u8)(0x00FF&Crc16)); // lowbyte last |
707 | SSC_ClearRxFifo(); |
706 | SSC_ClearRxFifo(); |
708 | do // wait for data response token |
707 | do // wait for data response token |
709 | { |
708 | { |
710 | rsp = SSC_GetChar(); |
709 | rsp = SSC_GetChar(); |
711 | if(timeout++>500) break; |
710 | if(timeout++>500) break; |
712 | }while((rsp & 0x11) != 0x01 ); |
711 | }while((rsp & 0x11) != 0x01 ); |
713 | // analyse data response token |
712 | // analyse data response token |
714 | switch(rsp & DATA_RESPONSE_MASK) |
713 | switch(rsp & DATA_RESPONSE_MASK) |
715 | { |
714 | { |
716 | case DATA_RESPONSE_OK: |
715 | case DATA_RESPONSE_OK: |
717 | result = SD_SUCCESS; |
716 | result = SD_SUCCESS; |
718 | break; |
717 | break; |
719 | case DATA_RESPONSE_CRC_ERR: |
718 | case DATA_RESPONSE_CRC_ERR: |
720 | result = SD_ERROR_CRC_DATA; |
719 | result = SD_ERROR_CRC_DATA; |
721 | goto end; |
720 | goto end; |
722 | break; |
721 | break; |
723 | case DATA_RESPONSE_WRITE_ERR: |
722 | case DATA_RESPONSE_WRITE_ERR: |
724 | result = SD_ERROR_WRITE_DATA; |
723 | result = SD_ERROR_WRITE_DATA; |
725 | goto end; |
724 | goto end; |
726 | break; |
725 | break; |
727 | default: |
726 | default: |
728 | result = SD_ERROR_UNKNOWN; |
727 | result = SD_ERROR_UNKNOWN; |
729 | goto end; |
728 | goto end; |
730 | break; |
729 | break; |
731 | 730 | ||
732 | } |
731 | } |
733 | // wait until the sdcard is busy. |
732 | // wait until the sdcard is busy. |
734 | rsp = SDC_WaitForBusy(); |
733 | rsp = SDC_WaitForBusy(); |
735 | if(rsp != 0xFF) |
734 | if(rsp != 0xFF) |
736 | { |
735 | { |
737 | result = SD_ERROR_TIMEOUT; |
736 | result = SD_ERROR_TIMEOUT; |
738 | goto end; |
737 | goto end; |
739 | } |
738 | } |
740 | // check card status |
739 | // check card status |
741 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
740 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
742 | if(rsp != R1_NO_ERR) |
741 | if(rsp != R1_NO_ERR) |
743 | { |
742 | { |
744 | result = SD_ERROR_BAD_RESPONSE; |
743 | result = SD_ERROR_BAD_RESPONSE; |
745 | SSC_GetChar(); |
744 | SSC_GetChar(); |
746 | goto end; |
745 | goto end; |
747 | } |
746 | } |
748 | // 2nd byte of r2 response |
747 | // 2nd byte of r2 response |
749 | rsp = SSC_GetChar(); |
748 | rsp = SSC_GetChar(); |
750 | if(rsp != R2_NO_ERR) |
749 | if(rsp != R2_NO_ERR) |
751 | { |
750 | { |
752 | result = SD_ERROR_WRITE_DATA; |
751 | result = SD_ERROR_WRITE_DATA; |
753 | SSC_GetChar(); |
752 | SSC_GetChar(); |
754 | goto end; |
753 | goto end; |
755 | } |
754 | } |
756 | end: |
755 | end: |
757 | //SSC_Disable(); // disable sdcard. |
756 | //SSC_Disable(); // disable sdcard. |
758 | if(result != SD_SUCCESS) |
757 | if(result != SD_SUCCESS) |
759 | { |
758 | { |
760 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
759 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
761 | SerialPutString(text); |
760 | SerialPutString(text); |
762 | } |
761 | } |
763 | return(result); |
762 | return(result); |
764 | } |
763 | } |
765 | 764 | ||
766 | 765 | ||
767 | //________________________________________________________________________________________________________________________________________ |
766 | //________________________________________________________________________________________________________________________________________ |
768 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
767 | // Funtion: SDC_GetSector(u32 addr,u8 *Buffer); |
769 | // |
768 | // |
770 | // Description: This function reads one sector of data from the SSC |
769 | // Description: This function reads one sector of data from the SSC |
771 | // |
770 | // |
772 | // |
771 | // |
773 | // Returnvalue: SD_Result_t |
772 | // Returnvalue: SD_Result_t |
774 | //________________________________________________________________________________________________________________________________________ |
773 | //________________________________________________________________________________________________________________________________________ |
775 | 774 | ||
776 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
775 | SD_Result_t SDC_GetSector(u32 addr,u8 *Buffer) |
777 | { |
776 | { |
778 | addr = addr << 9; // convert sectoradress to byteadress |
777 | addr = addr << 9; // convert sectoradress to byteadress |
779 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
778 | return SDC_GetData(CMD_READ_SINGLE_BLOCK, addr, Buffer, 512); |
780 | } |
779 | } |
781 | 780 | ||
782 | 781 | ||
783 | 782 | ||
784 | 783 |