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CCS 6.1.1.00022 : MSP432 launchpad error: failed _CPU_Reset (Error -2036)



I am unable to run any program using ccs V 6.1.1.00022 now on my launchpad.

I am running  CCS Version: 6.1.1.00022 . Same problem on my laptop (Windows 10 pro 64-bit) as well as a fresh install on a machine with no CCS

ever installed ( Windows 7 64-bit)

I get the following message in the Console window when trying to use the debugger for the BlinkLED_MSP432401R example.

1)

******

CORTEX_M4_0: GEL Output: Memory Map Initialization Complete
CORTEX_M4_0: GEL Output: Halting Watchdog Timer
CORTEX_M4_0: Flash Programmer: Erasing main memory
CORTEX_M4_0: Flash Programmer: Writing 4040 bytes to flash memory 0x00000000 
CORTEX_M4_0: Failed CPU Reset: (Error -2063 @ 0x0) Unable to reset device. Power-cycle the board. If error persists, confirm configuration and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 6.0.14.5) 
CORTEX_M4_0: JTAG Communication Error: (Error -1170 @ 0x0) Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 6.0.14.5)

*******

If I power cycle the board and restart CCS, I then get the following Popup message when trying to run the debugger

2)

****************

Error connecting to the target:
(Error -1063 @ 0x0)
Device ID is not recognized or is not supported by driver. Confirm device and debug probe configuration is correct, or update device driver.
(Emulation package 6.0.14.5)

**********

Repeated CCS restarts and board power cycles still displays the above message ( Also Energia cannot connect to the board in this state).

i have to go through the process of running the MSP432_reset script  to make my board responsive , at which point I can run any Energia example. 

To get around this I have to rerun the MP432_Restart script, after which trying to rerun my example bring me back to message 1 and the cycle repeats

David