We are trying to validate our DDR4 settings on a custom LS1020A board, following the guides for the DDR Validation tool for the qoriq configuration in codewarrior. (http://cache.freescale.com/files/soft_dev_tools/doc/user_guide/QCVSDDRVGETSTARTUG.pdf )
In this guide, step 1.4, we are unable to connect to the hardware
We get a broken link next to the Target drop-down with the tooltip: Target is not ready: target does not respond and/or could not be reset.
We are using the CWTAP with USB / Ethernet connection, and we can debug programs on the system fine.
Our target settings are:
Probe Type: CWTAP
Target Access: CDDE
Probe Address: <mac address of CWTAP or IP Address of CWTAP or Blank>
JTAG Clock Speed: default (have tried a few different ones)
We are suspicious that this is due to the ARM not being alone on the JTAG chain, we have a Xilinx part in front of the ARM and our JTAG Config File for debugging program has:
Generic 6 1 0x3f