MKE14F512VLL16 error on flash SST25VF020B-20-4I

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MKE14F512VLL16 error on flash SST25VF020B-20-4I

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henryscott
Contributor I

hallo, I'm using the MKE14F512VLL16 connected on PTB14 as Clock, PTB15 as MISO, PTB16 as MOSI with an external flash SST25VF020B-80-4I . My problem is that I replaced the SST25VF020B-80-4I flash with the SST25VF020B-20-4I due to unavailability, so the new flash has the 20mhz bus and no longer 80mhz, and now the flash is no longer connected. I know that the settings on the clock must be changed, as well as that I have to change the flash ID in the software, but unfortunately I tried to change the flash but I still can't see it from the micro

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Miguel04
NXP TechSupport
NXP TechSupport

Hi @henryscott 

I asume you are using SPI.

This issue could be caused by a missmatch between the frequency, phase or polarity (SPI configuration) of the MKE14 and the external flash. 

Please make sure everything is configurated correctly.

Best Regards, Miguel.

 

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