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BQ76PL455A-Q1: Custom board error connecting to GUI

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Part Number:BQ76PL455A-Q1

I am currently creating my own BMS using the BQ76PL455A based mostly on the Eval board as well as some of the other design consideration schematics that are linked with it; however, I am unable to connect to the GUI as I get an error saying "unable to open COM port". I did not include the COMM switch as the eval board does but I believe I made the proper wiring that the switch does, by jumping commL+ to v5vao and commL- to GND so I am unsure why I am having troubles connecting. Any insight would be appreciated. Thanks.


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