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| Protocol Frame Description | |
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Frame Start | Channel | Command | Data Length | Data | CheckSum | Data Block | |
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7Eh | If not used, | 84h | 01h | DataBlockNumber 01h | Yes | Byte 0:1FFh => 512 Bytes data | |
FFh | (no checksum on data) | ||||||
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FS_FREAD_BLOCK_DATA_EN Player Response of FS_READ_BLOCK command when last block is reached (end of D* Response file). After this Player reponse, there is no need to send the FS_FCLOSE command.
Player returns in operating mode IDLE.
Table
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Frame Start | Channel | Command | Data Length | Data | CheckSum | |
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7Eh | If not used, | 85h | 01h | Byte 0: Player Status Byte | Yes | |
FFh | ||||||
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PLAYER_INDEX_NUMBER* Player Response of PLAYER_GETINDEXNUMBER command. This frame returns the Response number of file in current directory.
Table
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Frame Start | Channel | Command | Length | Data | CheckSum | |
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| Byte 0: Player Status Byte |
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7Eh | 86h | 03h | Byte 1: MSB(Number_of_Index) | Yes | ||
FFh | ||||||
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| Byte 2: LSB(Number_of_Index) |
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FS_MEMFREESPACE* Response
Player Response of FS_GETMEMFREESPACE command. Data parameter are:
number of free cluster (32 bits, byte 1:4, MSB is byte 0 in data parameters).
cluster size in sector (8 bits, byte 5 in data parameters).
Note: Sector size is 512 Bytes.
Memory free space available is :
MemoryFreeSpace(Byte) = NumberFreeCluster * ClusterSize * 512 Bytes.
Table
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Frame Start | Channel | Command | Data Length | Data | CheckSum | |
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| Byte 0: Player Status Byte |
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7Eh | 8Ah | 06h | Byte 1:4 Number of free cluster | Yes | ||
FFh | ||||||
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| Byte 5: Cluster Size |
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FS_FILESIZE* Response Current file size is in Bytes. Player Response of FS_GETFILESIZE command.
AT83SND2CMP3 User Guide |