Chris Reed

Thanks for testing. I'm ordering an LPC845-BRK board so I can try to reproduce it.

Looking at the user manual (UM11029) explains a few things. Connect under-reset doesn't work because boundary scan mode is enabled when the nRESET pin is asserted; SWD is disabled while...

Ok, thanks for confirming that. And it's good to know that it's MCUX can do it without the ISP pin—the LPC845-BRK schematic confirms there isn't an ISP pin connection to...

Hi @Hoohaha, thanks for taking a look at this and providing the IAR log. I did get an LPC845-BRK board, so I should be able to debug it. Are you...

Thanks @Hoohaha !

Ok, I can reproduce it now. For some reason, immediately after I flash the test app it was working fine. It may have required a power cycle to reproduce.

The lpc845breakout_pint_pattern_match test image above reproduces the "No cores found" error. Using the "under-reset" connect mode, e.g., `--connect=under-reset`, seems to resolve all issues. Erasing and programming flash work fine, and...

You're right about the message being difficult to understand for many people. A big part is the lack of documentation. I'm working on a pyocd.io website and will be writing...

@MiroHibler Thank you for all the details. Not sure when I'll be able to get back to this issue, but I haven't forgotten about it.

Thanks for reporting. Definitely an issue if you need to continually check for new probes! I agree there's probably a reference left dangling somewhere. Hopefully it's not somewhere in pyusb...