pyOCD: MIMXRT1050-EVKB flash fails

Flash MIMXRT1050-EVKB board constantly fails. There seems to be two type of errors occurring. Daplink details.txt and full traces are attached.

Error number one: pyocd.probe.pydapaccess.dap_access_api.DAPAccessIntf.TransferError: No ACK received Error number two: pyocd.core.exceptions.DebugError: No cores were discovered!

$ pyocd --version
0.24.1

daplink.txt trace.txt trace2.txt

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 55 (23 by maintainers)

Most upvoted comments

cc @jhqian (Big thanks for helping us finally make some real progress on the RT1052!)

@juhhov Thanks for testing. Basic flashing also works for me, and I similarly see an exception in some other cases. The failures may be due to not having code on the device. The “No ACK received” error means that the target is not responding to SWD at all. I’m going to look into it some more.

(Btw, you don’t need to include the --pack argument in the command line since you are using the builtin mimxrt1050_hyperflash target type. The RT1052 pack also has some issues that prevent it from being used by pyOCD.)

flit on Mar 24, 2020

It really should not matter WHAT is currently in the flash, IMHO. Whatever is there, should get overwritten by the DAPLINK application anyway (if you’re flashing a .bin -file). So, we clearly have some underlying issue here at hand.

JanneKiiskila on Feb 6, 2020

Well, that was a bit premature. Actually, even the USB mode flashing fails now. FAIL.TXT says now:

error: The interface firmware FAILED to reset/halt the target MCU
type: target

So, the board is now stuck in a non-programmable mode.

Seems we have others with the same issue; https://os.mbed.com/forum/platform-317-MCIMX6RT1050-EVK-community/topic/33537

JanneKiiskila on Feb 5, 2020