Sony FCB-ER8550 - Page 64

FCB-ER8550/CR8550(GB) D-201-100-12(1)
64
Issue of CHK_
GUARD/WRITE_
FIRM command
dataSize = 0
Issue of CHK_
GUARD/WRITE_
FIRM command
dataSize = windowSize
End
Response reception
Status ID?
STAT_BUSY
STAT_OK/others
windowSize of a response parameter in a command
just before transfer
Discriminating the camera mode and updater mode
As described in the section of a UUD Firmware data structure, the USB PID, USB VID, and operating mode of
equipment to be updated are described in the UDID chunk of firmware package data. The host to be updated
confirms that USB PID and USB VID which acquired a USB descriptor from the unit are contained in the UDID
chunk. By the ID operating mode, judge whether the unit is started in a camera mode or updater mode.