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SdFat.h File Reference
SdFile and SdVolume classes.
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class SdFile Access FAT16 and FAT32 files on SD and SDHC cards. More... union cache_t Cache for an SD data block. More... class SdVolume Access FAT16 and FAT32 volumes on SD and SDHC cards. More... static uint16_t FAT_DATE (uint16_t year, uint8_t month, uint8_t day) date field for FAT directory entry static uint16_t FAT_YEAR (uint16_t fatDate) year part of FAT directory date field static uint8_t FAT_MONTH (uint16_t fatDate) month part of FAT directory date field static uint8_t FAT_DAY (uint16_t fatDate) day part of FAT directory date field static uint16_t FAT_TIME (uint8_t hour, uint8_t minute, uint8_t second) time field for FAT directory entry static uint8_t FAT_HOUR (uint16_t fatTime) hour part of FAT directory time field static uint8_t FAT_MINUTE (uint16_t fatTime) minute part of FAT directory time field static uint8_t FAT_SECOND (uint16_t fatTime) second part of FAT directory time field uint8_t const LS_DATE = 1 ls() flag to print modify date uint8_t const LS_SIZE = 2 ls() flag to print file size uint8_t const LS_R = 4 ls() flag for recursive list of subdirectories uint8_t const O_READ = 0X01 open() oflag for reading uint8_t const O_RDONLY = O_READ open() oflag - same as O_READ uint8_t const O_WRITE = 0X02 open() oflag for write uint8_t const O_WRONLY = O_WRITE open() oflag - same as O_WRITE uint8_t const O_RDWR = (O_READ | O_WRITE ) open() oflag for reading and writing uint8_t const O_ACCMODE = (O_READ | O_WRITE ) open() oflag mask for access modes uint8_t const O_APPEND = 0X04 The file offset shall be set to the end of the file prior to each write. uint8_t const O_SYNC = 0X08 synchronous writes - call sync() after each write uint8_t const O_CREAT = 0X10 create the file if nonexistent uint8_t const O_EXCL = 0X20 If O_CREAT and O_EXCL are set, open() shall fail if the file exists. uint8_t const O_TRUNC = 0X40 truncate the file to zero length uint8_t const T_ACCESS = 1 set the file's last access date uint8_t const T_CREATE = 2 set the file's creation date and time uint8_t const T_WRITE = 4 Set the file's write date and time. uint8_t const FAT_FILE_TYPE_CLOSED = 0 This SdFile has not been opened. uint8_t const FAT_FILE_TYPE_NORMAL = 1 SdFile for a file. uint8_t const FAT_FILE_TYPE_ROOT16 = 2 SdFile for a FAT16 root directory. uint8_t const FAT_FILE_TYPE_ROOT32 = 3 SdFile for a FAT32 root directory. uint8_t const FAT_FILE_TYPE_SUBDIR = 4 SdFile for a subdirectory. uint8_t const FAT_FILE_TYPE_MIN_DIR = FAT_FILE_TYPE_ROOT16 Test value for directory type. uint16_t const FAT_DEFAULT_DATE = ((2000 - 1980) << 9) | (1 << 5) | 1 Default date for file timestamps is 1 Jan 2000. uint16_t const FAT_DEFAULT_TIME = (1 << 11) Default time for file timestamp is 1 am.
Detailed Description
SdFile and SdVolume classes.
Definition in file SdFat.h .
Function Documentation
static uint16_t FAT_DATE
(
uint16_t
year ,
uint8_t
month ,
uint8_t
day
)
[static]
date field for FAT directory entry
Definition at line 95 of file SdFat.h .
static uint8_t FAT_DAY
(
uint16_t
fatDate )
[static]
day part of FAT directory date field
Definition at line 107 of file SdFat.h .
static uint8_t FAT_HOUR
(
uint16_t
fatTime )
[static]
hour part of FAT directory time field
Definition at line 115 of file SdFat.h .
static uint8_t FAT_MINUTE
(
uint16_t
fatTime )
[static]
minute part of FAT directory time field
Definition at line 119 of file SdFat.h .
static uint8_t FAT_MONTH
(
uint16_t
fatDate )
[static]
month part of FAT directory date field
Definition at line 103 of file SdFat.h .
static uint8_t FAT_SECOND
(
uint16_t
fatTime )
[static]
second part of FAT directory time field
Definition at line 123 of file SdFat.h .
static uint16_t FAT_TIME
(
uint8_t
hour ,
uint8_t
minute ,
uint8_t
second
)
[static]
time field for FAT directory entry
Definition at line 111 of file SdFat.h .
static uint16_t FAT_YEAR
(
uint16_t
fatDate )
[static]
year part of FAT directory date field
Definition at line 99 of file SdFat.h .
Variable Documentation
Default date for file timestamps is 1 Jan 2000.
Definition at line 127 of file SdFat.h .
Default time for file timestamp is 1 am.
Definition at line 129 of file SdFat.h .
Test value for directory type.
Definition at line 92 of file SdFat.h .
ls() flag to print modify date
Definition at line 43 of file SdFat.h .
ls() flag for recursive list of subdirectories
Definition at line 47 of file SdFat.h .
ls() flag to print file size
Definition at line 45 of file SdFat.h .
open() oflag mask for access modes
Definition at line 61 of file SdFat.h .
The file offset shall be set to the end of the file prior to each write.
Definition at line 63 of file SdFat.h .
create the file if nonexistent
Definition at line 67 of file SdFat.h .
If O_CREAT and O_EXCL are set, open() shall fail if the file exists.
Definition at line 69 of file SdFat.h .
open() oflag - same as O_READ
Definition at line 53 of file SdFat.h .
open() oflag for reading and writing
Definition at line 59 of file SdFat.h .
open() oflag for reading
Definition at line 51 of file SdFat.h .
synchronous writes - call sync() after each write
Definition at line 65 of file SdFat.h .
truncate the file to zero length
Definition at line 71 of file SdFat.h .
open() oflag for write
Definition at line 55 of file SdFat.h .
open() oflag - same as O_WRITE
Definition at line 57 of file SdFat.h .
set the file's last access date
Definition at line 75 of file SdFat.h .
set the file's creation date and time
Definition at line 77 of file SdFat.h .
Set the file's write date and time.
Definition at line 79 of file SdFat.h .
1.7.2