CCS/MSP432P401R: CS_DAP_0: Error connecting to the target: (Error -1170 @ 0x0) Unable to access the DAP.

Krishn_JI

Expert 2035 points

Part Number: MSP432P401R

Tool/software: Code Composer Studio

Hi,

I am unable to connect to the MSP432 Launchpad.

This all is going on after two instructions are being added to the program that is PJSEL1=0x00; PJSEL0 = 0x01; after getting a problem I removed both the instructions but it is still not working. I read this so have one doubt, Is this Shared JTAG pin causing a problem?

I browsed through the forums and tried the different solutions:

one of them is factory reset. which cant be performed, if I try connecting as per user guide instructions. the below-attached error occurs.

over 4 years ago

0 PM over 4 years ago

TI__Mastermind 27145 points

Hi,

We will look into it and get back to you ASAP. Please bear with us.

Thanks,

0 Seong Kim over 4 years ago

TI__Mastermind 39860 points

Unobtainium,

MSP432s are more proned to be bricked from using the device's JTAG pins, because they are muxed with other signals. The SWD pins are not, so I recommended using the XDS110 + SWD moving forward.

The error shows that it is unable to access the DAP. For all Launchpad boards that use the XDS110 Debug Probe, a recent change on the default TCLK speed may cause this issue. Please check the section JTAG clock speed considerations at the XDS110 page.

Also see the solution Dennis provided on this E2E thread.

BR,

Seong

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CCS/MSP432P401R: CS_DAP_0: Error connecting to the target: (Error -1170 @ 0x0) Unable to access the DAP.