topic Version 11.X fails to flash correctly in MCUXpresso IDE

Version 11.X fails to flash correctly

alannilsson — Wed, 04 Nov 2020 21:08:35 GMT

Consider this a bug report as I'm going back to version 10 - way too many problems on version 11

Working with an LPC1517, when using the debug launch the resultant binary on the chip has a section of 0xFFFFFFFF in the flash. This results in an immediate hard fault for obvious reasons.

The first flash on an unprogrammed chip is OK, after that this problem occurs. The disassembly of the binary on disk shows that it was compiled correctly. Using the separate GUI flash tool and choosing 'mass erase' results in a proper programmed chip. Using the same setting in the launch profile results in a broken flash

Additionally after the first flash with version 11 I can no longer flash the chip using the serial boot loader.

Re: Version 11.X fails to flash correctly

Alice_Yang — Thu, 05 Nov 2020 08:48:56 GMT

Hello alannilsson,

Recommend you erase the chip before program no matter use which version.

The version 10 maybe have includes erase function when program.

Anyway, erase is needed before program .

Regards,

Alice

Re: Version 11.X fails to flash correctly

alannilsson — Mon, 09 Nov 2020 17:40:43 GMT

As stated in the original problem description, using 'mass erase' in the launch profile does not work.

It appears to me that it IS erasing the chip. An erased eprom is all 1's, i.e. 0xFFFFFFFF, since that is what ends up in the on chip binary, it appears that the chip is being erased but certain sectors are just not being re-programmed. This has happened across several chips so it is not related to a specific chip failure.

What is more frustrating (as if this is not bad enough) is that once it happens to a chip, that chip cannot be programmed via serial boot loader any longer. It is NOT the CRP value. I can take the chip back to version 10 and program it via SWD - from that I can see that the CRP value is not locking it down. But even at this point it is no longer accessible via serial.

Re: Version 11.X fails to flash correctly

Alice_Yang — Wed, 11 Nov 2020 08:04:27 GMT

Hello,

Because I haven't LPC1517 board, could you please take a video or screenshot to show your steps

and issue information.?

And what about the CRP you config? How about simple project?

Regards,

Alice