Atmel AT83SND2C MP3 - Manual (Page 47)

Protocol Frame Description
AT83SND2CMP3 User Guide 5-43
7525A–MP3–07/05
Player response to FS_FREAD_BLOCK command is FS_READ_BLOCK_DATA*.
Once end of file is reached, Player response to FS_READ_BLOCK command is
FS_READ_BLOCK_DATA_END*. Remote Controller can stop reading file at any
moment by sending the FS_FCLOSE command.
Note: (*) means that the frame is a player response.
FS_FCLOSE Command Close current file (close read or close write file). This command is used to stop any read
or write file transfer. This command is not necessary :
„
when reading file and end of file is reached (FS_READ_BLOCK_DATA_END*
response).
„ when writing the last block of the file.
Table 5-47 . FS_FCLOSE command
FS_GETMEMFREESPACE Get selected memory free space left.
Table 5-48 . FS_GETMEMFREESPACE command
Player response is FS_MEMFREESPACE* frame.
FS_GETFILESIZE Get current file size in Byte.
Table 5-49 . FS_GETFILESIZE command
Player response is FS_FILESIZE* frame.
Note: Directory size is 0.
FS_GETFILEPOS Get current file position (playing operating mode only).
Table 5-50 . FS_GETFILEPOS command
Frame Start Channel
Protocol
Command Data Length Data CheckSum
7Eh
If not used,
FFh
69h 00h No Yes
Frame Start Channel
Protocol
Command Data Length Data CheckSum
7Eh
If not used,
FFh
6Ah 00h No Yes
Frame Start Channel
Protocol
Command Data Length Data CheckSum
7Eh
If not used,
FFh
6Bh 00h No Yes
Frame Start Channel
Protocol
Command Data Length Data CheckSum
7Eh
If not used,
FFh
6Ch 00h No Yes