I have a very similar problem to https://rowley.zendesk.com/entries/22965591-lpc1788-cannot-find-debug-component-in-rom-table on an STM32F2, specifically on an Olimex STM32-P207, which comes with a pre-installed demo firmware.
I'm on Linux and have fixed the /dev permissions and after halving the JTAG clock, can reset the processor but, for the moment at least, I've hit a dead end.
Other times I've seen this problem, it's been related to the RUN_FROM_STARTUP option, and I've operated boot0 and/or boot1, which may be the problem here. I'm not yet sure how to do that with the Olimex board. I'm using their ARM-USB-OCD-H dongle as my Turtelizer didn't want to talk .. probably a wiring issue with my 10->20 way adapter.
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