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CCS/LP-CC2652RB: Problem with CC26X2 running Host_test

Part Number: LP-CC2652RB


Tool/software: Code Composer Studio

Hi all,

I'm currently using the latest launchpad CC26X2 and running the Host_test as central to receive data.

The host_test program works fine if i just flash in and I could use BTool to open the port.

But when i use the debugging on host_test and then open the Btool. 

It will gives me error: 

Cortex_M3_0: 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 8.1.0.00012)
Cortex_M3_0: Trouble Halting Target CPU: (Error -2064 @ 0x0) Unable to read device status. 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 8.1.0.00012)

I need to using the debug tool to check the RAM usage, is there any method i could solve this problem?

Thanks,

Jianan