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Multiple ulink2s on same PC for flashing

From previous posts I know that multiple ulink2 adapters can be used for debugging purposes by going into the settings and choosing the ulink2 serial number. Can this be done in a hard coded fashion for unattended flashing?

We are currently using a single PC per product with an attached ulink2 to flash the product during production by invoking uv2 with the project file and flash argument. We would like to consolidate several of our programming apps onto a single PC, but we would need to assign the ulink2 per project.

In the OPT file I see the following line:

OPTKEY 0,(UL2OCDS)( -O4399 -F15 -S3 -U"" -C0 -B"" -Q0"XC16x-16F" -J01 -L0C00000 -N020000 -M00)

I am pretty sure these are arguments passed to the ocds dll for degbugging and flashing purposes.

Does anyone know what the different arguments are?

Does anyone know where and how the ulink2 serial number is used by uv2?

Thanks.