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TMS320F2800137: TMS320F2800137 DEBUGGING REMOVE ISSUE IN RUN TIME

Part Number: TMS320F2800137
Other Parts Discussed in Thread: LAUNCHXL-F2800137

Tool/software:

Hi TI Team,

                      Currently i am using TMS320F2800137 mcu for INVERTER application. I am using Build Configuration:- CPU1_RAM with 4 wire debug(TCK,TMS,TDO,TD1). Pull up resistance of 2.2k is used at TDO,TMS,TDI pin. No pull up/pull down is used at TCK pin.

The problem is that in RUN TIME execution of program-> after 1 minute of start mcu -> the debugging connection is lost. I do not know the exact reason why this is happening. I am using  LAUNCHXL-F2800137 as debugger.
Is their any issue regarding the interfacing of LAUNCHXL-F2800137 & target board mcu TMS320F2800137 . Please help me  to resolve this issue.

Thanks with  regards,

DEEPAK