Hi all,
I am working on a QSPI driver for W25Q512 flash memory (extloader for stm32cubeprogrammer and main firmware driver).
I had a look at the errata ES0392 - Rev 13 and I have a question about paragraph 2.8.4:
2.8.4 - QUADSPI internal timing criticality
---------------
Description
The timing of some internal signals of the QUADSPI peripheral is critical.
At certain conditions, this can lead to a general failure of the peripheral.
As these conditions cannot be exactly determined, it is recommended to systematically apply the workaround as described.
...
[omissis]
I have applied the suggested patch on the "external loader" driver and there is no particular problem in applying it, but I have also the "very similar" driver on the main application firmware in processor.
Up to now I had no errors in the main firmware qspi driver : read and write are ok also without the patch.
Applying the patch on the "main firmware" needs testing and I have to schedule this testing.
Is it possible to have some more details on this "certain conditions" to better evaluate the situation and get less worried about this... ?
Does it mean clock, temperature, ...?
Thanks,
best regards
Lucio
