Application board 2.0 rs232 communication

Hello,

I'm trying to use the rs232 communication instead of the USB on the Application board 2.0 with the BMP388 shuttle board.

There is two rs232 on the board, one for the debug and one for the communication (on the 36 pins connector). I already tried several configurations for the power supply (jumper and power switch, with external alimentation or via USB).

Is there a specific configuration for the rs232 communication ? (i followed the datasheet).

Thank you in advance

board : https://www.bosch-sensortec.com/bst/support_tools/application_boards/overview_application_boards

Datasheet : https://ae-bst.resource.bosch.com/media/_tech/media/application_board_2_0/BST-DHW-AN001-01_APP2_0_Hardware_Description_.pdf

Best reply by Harvey

Hi VTC,

The RS232 feature isn't really used by anyone, but after investigation it seems like it should still work on the J301 connector (6 pins). Note however that the voltage needs to match the RS-232 specifications (positive and negative voltage, not TTL level)

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APPLICATION BOARD 2.0

BMP388

RS232

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