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TMS320F28035: Serial flash programmer - error during programming

Part Number: TMS320F28035


Hello TI Team.

I want to program F28035 MCU device by Serial flash programmer.

To do it I used the hex2000 tool as a post build in CCS via command:

"${CG_TOOL_HEX}" -boot -a -sci8 "${BuildArtifactFileName}" -o "${BuildArtifactFileBaseName}.txt"

Next I used serial_flash_programmer tool via command:

serial_flash_programmer.exe -d f2803x -a some_app.txt -b 9600 -p COM18

But I have these errors during programming:

ERROR: No COM port number was specified. Please use -p to provide one.
getting comm state
building comm DCB
adjusting port settings

calling f05_DownloadImage
Downloading appa.txt to device...

and this window appears:

First error suggest that I have a problem with COM port but the second suggest that there is a file open problem.