STIMA  3
SdCard.h
1 /* Arduino FAT16 Library
2  * Copyright (C) 2008 by William Greiman
3  *
4  * This file is part of the Arduino FAT16 Library
5  *
6  * This Library is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This Library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15 
16  * You should have received a copy of the GNU General Public License
17  * along with the Arduino Fat16 Library. If not, see
18  * <http://www.gnu.org/licenses/>.
19  */
20 #ifndef SdCard_h
21 #define SdCard_h
22 
23 //#include <inttypes.h>
24 #define __STDC_LIMIT_MACROS
25 #include <stdint.h>
26 #include <avr/io.h>
27 
28 #include "mSPI.h"
29 
30 /********************/
31 /* CHIP SELECT PIN */
32 /********************/
33 
34 /* !!! don't works !!! */
35 
36 /* the default SS pin is PB2 */
37 #ifndef SD_SS_PORT
38 #define SD_SS_PORT B
39 #endif
40 
41 /* !!! default changed !!! */
42 #ifndef SD_SS_PIN
43 #define SD_SS_PIN 0
44 #endif
45 
46 /* build register name */
47 #define SD_SS_PORT_REG PORTC
48 #define SD_SS_DDR_REG DDRC
49 
50 /* init at DIV32 : 8Mhtz -> 250 000 */
51 #define SPI_SCK_INIT_DIVISOR 0x10
52 
53 
54 //------------------------------------------------------------------------------
55 // SD operation timeouts
56 
57 #define SD_MAX_CMD0_TRIES 10
58 #define SD_MAX_TRANSFERTS UINT16_MAX
59 #define SD_MAX_COMMANDS UINT16_MAX
60 
61 
62 //------------------------------------------------------------------------------
63 // SD card commands
65 #define CMD0 0X00
67 #define CMD8 0X08
69 #define CMD9 0X09
71 #define CMD10 0X0A
73 #define CMD12 0X0C
75 #define CMD13 0X0D
77 #define CMD17 0X11
79 #define CMD18 0X12
81 #define CMD24 0X18
83 #define CMD25 0X19
85 #define CMD32 0X20
88 #define CMD33 0X21
90 #define CMD38 0X26
92 #define CMD55 0X37
94 #define CMD58 0X3A
96 #define CMD59 0X3B
99 #define ACMD23 0X17
102 #define ACMD41 0X29
103 //------------------------------------------------------------------------------
105 #define R1_READY_STATE 0X00
107 #define R1_IDLE_STATE 0X01
109 #define R1_ILLEGAL_COMMAND 0X04
111 #define DATA_START_BLOCK 0XFE
113 #define STOP_TRAN_TOKEN 0XFD
115 #define WRITE_MULTIPLE_TOKEN 0XFC
117 #define DATA_RES_MASK 0X1F
119 #define DATA_RES_ACCEPTED 0X05
120 //------------------------------------------------------------------------------
122 #define CARD_TYPE_SDV1 0x01
124 #define CARD_TYPE_SDV2 0x02
126 #define CARD_TYPE_SDHC 0x03
127 
128 //------------------------------------------------------------------------------
129 
130 /* return card type */
131 uint8_t SdCard_begin();
132 bool SdCard_readBlock(uint32_t block, uint8_t cardType);
133 bool SdCard_writeBlock(uint32_t block, uint8_t cardType);
134 
135 #endif // SdCard_h
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