Could not find core in Coresight setup nRF52840 ?

[RixtronixLAB]

Dear Members,

I got :

Could not find core in Coresight setup nRF52840 ? with PCA10059, it was working ok before,

Any solution for it ?

Kind regards,

Rixtronix LAB

[RixtronixLAB]

Error message :

Connecting ...
 - Connecting via USB to probe/ programmer device 0
 - Probe/ Programmer firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
 - Device "NRF52840_XXAA" selected.
 - Target interface speed: 4000 kHz (Fixed)
 - VTarget = 3.313V
 - InitTarget() start
 - InitTarget() end
 - Found SW-DP with ID 0x2BA01477
 - Unknown DP version. Assuming DPv0
 - Scanning AP map to find all available APs
 - AP[0]: Stopped AP scan as end of AP map has been reached
 - Iterating through AP map to find AHB-AP to use
 - RESET (pin 15) high, but should be low. Please check target hardware.
 - InitTarget() start
 - InitTarget() end
 - Found SW-DP with ID 0x2BA01477
 - Unknown DP version. Assuming DPv0
 - Scanning AP map to find all available APs
 - AP[0]: Stopped AP scan as end of AP map has been reached
 - Iterating through AP map to find AHB-AP to use
 - ERROR: Could not find core in Coresight setup
 - ERROR: Failed to connect.
Could not establish a connection to target.

[RixtronixLAB]

[RixtronixLAB]

Is the chip failed already ?

[Vidar Berg]

Can you show a picture of the debugger connections you've made to 52840 dongle? Also, please try the Programmer app in nrf connect for desktop or nrfjprog and see if you get a similar error.

[RixtronixLAB]

Hi VIdar,

Thanks for the reply,

Here're some shots of the dongle

Where can I find the *.log file ?

I'm thinking that I need to unsolder the chip, it's not responding anymore,

It did few times, and now it is not,

Any suggestions ?

Kind regards,

Rixtronix LAB