i.MX RT1064 & Internal 4MB of Flash

[atzelcollazo]

Hello team,

I'm trying to figure out how the internal 4MB of Flash in the RT1064 works, I want to recommend the device to a customer looking for an MCU with the amount of RAM that RT has and the power of processing.

I'm not being able to understand how it works. From the RM I understand that it must be accessed using the FlexSPI but I don't know if it can be used as a regular flash to store the program/application and run from there. is it possible? if so, is it ECC protected?

Thanks!

Best Regards,

Atzel Collazo

[Sabina_Bruce]

Hello atzelcollazo‌

Please refer to the following community document, here you will find a detailed explanation of all the modifications that you need to make to one of the SDKs examples to use the on-chip flash as NVM. 

RT1064 use on-chip flash as NVM 

Have a great day,

Sabina

[atzelcollazo]

Update:  I've been reading the RM and as far as I understood, the communication with the flash must be using FlexSPI and must be treated as if it was an external memory but I can run the application from there (correct me if I'm wrong). So, my question is if it is ECC protected?

Best Regards,

Atzel Collazo 

[victorjimenez · Accepted solution]

Hello Atzel, 

Just to complete Mark's answer, you are correct, you can run your application from the mounted on-chip memory. Regarding the ECC, only the 8-bit SLC NAND Flash supports this feature, this is stated in section 1.3 of the Reference Manual. 

Have a great day,
Victor

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[mjbcswitzerland]

Hi

The i.MX RT 1064 has a "regular" W25Q32JV mounted on chip (SoC) so has the same characteristics as an i.MX RT 1060 connecting to an external W25Q32JV via pins. It saves space but doesn't allow the signals to be measured.

Regards

Mark

[uTasker project developer for Kinetis and i.MX RT]