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External Loader for IS25LP256D-JMLE

Question asked by Klaas de Boer on Sep 21, 2017
Latest reply on Feb 28, 2018 by Michael Hayward

Hi all!


We encountered a problem while we wants to program our Display Controller Unit.


 In our previous prototype we used a QSPI Nor-Flash MT25QL256ABA8ESF-0SIT

We could use the available bootloaders found in ST-LINK Utility.

 This was working perfectly.


In our new design we used an other QSPI chip, provided bij ISSI:

Now we are facing some problems regarding to the bootloader. With the STM32 ST-LINK Utility it's possible to select "external loader". But the chip we are using now is not listed in the provided loaders.

As far we know both chips are QSPI Nor-Flash memory. Share the same addresses? But we don’t know if we need to write a new bootloader? And how we write such a bootloader.


How can we solve this problem? Are there other loaders available? Do some of you guys have written some examples? Could you help us further?


We are looking forward to your replies! :-)


Best regards!