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'''Start file transfer command (CMD ID 0x0001)'''<br>
'''Start file transfer command (CMD ID 0x0001)'''<br>
After device is connected for a file download, server initiates file transfer by sending a START command.
After device is connected for a file download, server initiates file transfer by sending a START command.
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'''File request command (CMD ID 0x0008)'''<br>
'''File request command (CMD ID 0x0008)'''<br>
After device is connected for a file upload, server initiates file transfer by sending a FILE REQ command.
After device is connected for a file upload, server initiates file transfer by sending a FILE REQ command.
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'''Resume file transfer command (CMD ID 0x0002)'''<br>
'''Resume file transfer command (CMD ID 0x0002)'''<br>
In a response to the START command a RESUME command must be sent from a server.
In a response to the START command a RESUME command must be sent from a server.
To begin a file transfer from the start, offset should be set to zero (4 bytes value). In case when the file transfer has been interrupted, to resume file transfer, offset can be set to the desired value (0 ≤ [offset] ≤ [file size]).
To begin a file transfer from the start, offset should be set to zero (4 bytes value). In case when the file transfer has been interrupted, to resume file transfer, offset can be set to the desired value (0 ≤ [offset] ≤ [file size]).
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'''Synchronize file transfer command (CMD ID 0x0003)'''<br>
'''Synchronize file transfer command (CMD ID 0x0003)'''<br>
In a response to the RESUME command a SYNC command is sent from device.
In a response to the RESUME command a SYNC command is sent from device.
By sending a SYNC command, it is ensured that the next data command will contain a file data starting from the specified offset.
By sending a SYNC command, it is ensured that the next data command will contain a file data starting from the specified offset.
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'''File data transfer command (CMD ID 0x0004)'''<br>
'''File data transfer command (CMD ID 0x0004)'''<br>
After sending a SYNC command, a file data transfer is started by sending DATA commands.
After sending a SYNC command, a file data transfer is started by sending DATA commands.
Initial value, when calculating CRC, is previously received packet (CMD ID 0x0004) CRC value.
Initial value, when calculating CRC, is previously received packet (CMD ID 0x0004) CRC value.
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'''File transfer status command (CMD ID 0x0005)'''<br>
'''File transfer status command (CMD ID 0x0005)'''<br>
After a file transfer is completed and no more files are required from the device, a server should send a COMPLETED command to the device (this command does not work after executing repeat init command0 x0009 – in this case the server should send a CLOSE session 0x0000 command mentioned before).
After a file transfer is completed and no more files are required from the device, a server should send a COMPLETED command to the device (this command does not work after executing repeat init command0 x0009 – in this case the server should send a CLOSE session 0x0000 command mentioned before).
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After a COMPLETED command device should disconnect from the server.
After a COMPLETED command device should disconnect from the server.
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'''Initialization packet repeat command (CMD ID 0x0009)'''<br>
'''Initialization packet repeat command (CMD ID 0x0009)'''<br>