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MSP430FR6989: Interaction MSP430FR6989 without passcode

Young Hu
Expert 4185 points
Part Number: MSP430FR6989
Other Parts Discussed in Thread: MSP-GANG,

Hi Champs,

My customer is using MSP430FR6989 in their ultrasonic water meter. The device was locked using MSP-GANG, and don't know the passcode. Some of MCU was found to hang up in the field. They want to know in this situation, is it possible to interact with the device via JTAG/UART? For example, if MCU was jumped into JTAG mode by accident, is it possible that we send a command to access JTAG module to check whether CPU can response? Or even blocked and get blocking information?

Thanks.

BR,

Young

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