Hi, Perhaps this should be a question for TI support... but anyway, I'd appreciated if anyone in the group has experience with this. I have a board with some c6203's on it (just one of them in the JTAG chain), but can not get the RTDX diagnostic tests in CCS v2.0 to work with it... basically there is no response from the target, although it seems to be executing the 'diagnostic' program OK. Has anyone had a similar experience / or know of a solution? Best regards, Steve.