We are using MITX board with Linux kernel from Xilinx. Facing issues with linux kernel driver for USB, we are trying to debug it with Segger J-Link base with PJTAG header on the board.
I set-up DS-5 tools from ARM to work with J-link base. So it show s up as J-link USB in the connections section. When I try to connect to the ARM processor 0 or 1, the error I get is:
Could not measure total IR len. TDO is constant high.
The tool is reporting the correct information as I have verified the voltage on the header pins (5,7,9 & 13 for TDO etc..) to be about that.I have tried independent and cascaded modes but no help. Is there any way I can debug the problem?