That's odd ... The external connection of mcu to flash seems to be ok. I don't
see any reason anymore why it could work on one bourd and fail on the other.
The only reason I can imagine now is that the flash chip doesn't respond to
RDJDID (0x9F) properly.
But why I can't tell. Maybe your mcu or the flash is defective? Are the
revisions of both H7 in question identical? Both flash chips from same batch?
From reliable sources? Dedicated reset pin?
Last idea: 'stmqspi cmd 2 3 0x9F' should give the flash's id.
Do you have the source code for the external loader for STM32CubeProg? Does it
check the id of the flash?
---
** [tickets:#290] QSPI debugging is not working in some stm32h753 mcu**
**Status:** new
**Milestone:** 0.10.0
**Created:** Thu Jan 07, 2021 10:44 AM UTC by shaalik
**Last Updated:** Sun Jan 10, 2021 04:38 PM UTC
**Owner:** nobody
Hi All,
i have two custom stm32H753XI + NOR QSPI flash (IS25LP512M) board. I am able
to debug in one board successfully but in another board it fails and even it
doesn't show the external flash ID of the chip. However i'm able to program
both the boards using st cube programmer with external loader and it is working
fine in normal mode.
In not working board, initially i faced issue in debug from internal flash
itself. And i found a fix from internet where they suggested to add PG bit
clear before the Internal flash write. I did the fix on top of
http://openocd.zylin.com/4321 change, then i was able to debug from internal
flash. But facing issue in debug from QSPI flash.
I have same cfg file which is working in one board and not working in another
board.
Please anyone help me to resolve the issue.
Regards,
Shahul
---
Sent from sourceforge.net because [email protected] is
subscribed to https://sourceforge.net/p/openocd/tickets/
To unsubscribe from further messages, a project admin can change settings at
https://sourceforge.net/p/openocd/admin/tickets/options. Or, if this is a
mailing list, you can unsubscribe from the mailing list.
_______________________________________________
OpenOCD-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/openocd-devel
