JTAG Access

Hi,

I’m using Beaglebone black, I’m developing a low level drivers for this board. I’m using GHS probe and have soldered a JTAG header. Initially I was to debug and download the code on to the board successfully. From past few days I’m not able to debug or download any code , I do receive a error message “Icepick couldn’t activate the core”. Can you please let me know the reason for this behavior ?

Best regards
Prashanth