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Error while loading new firmware/Program

Other Parts Discussed in Thread: TM4C1294NCPDT

Hi all,

MCU: Tiva C TM4C1294NCPDT

IDE: CCS V6.0.1

I am getting the following below errors while loading new firmware on my board. I am using TM4C123G development board as a programmer/debugger.

CORTEX_M4_0: GEL Output:
Memory Map Initialization Complete
CORTEX_M4_0: Error: Debug Port error occurred.
CORTEX_M4_0: Trouble Halting Target CPU
CORTEX_M4_0: Error: Debug Port error occurred.
CORTEX_M4_0: Trouble Halting Target CPU
CORTEX_M4_0: Flash Programmer: Timed out while writing to Flash memory
CORTEX_M4_0: Trouble Halting Target CPU
CORTEX_M4_0: GEL: File: D:\CCS_workspace_v6_0\DL_Tiva_v2\Debug\DL_Tiva_v2.out: Load failed.

Earlier this loading of firmware was happening successfully. But now what happened with this I am not getting. I tried a lot. Please anyone suggest me what to do with this. Thanks in advance.

Regards

Jeetesh