Flash eMMC on EVK using JTAG interface

[nirmalluhana]

Hi,

Release : Yocto-morty (4.9.51_GA)

Board : i.Mx8mq EVK

I have gone through many NXP processors community and try to find out flash image in eMMC over JTAG interface but don't get any information regarding this. 

So is it possible to provide any information to flash the image in eMMC over JTAG interface? 

If possible then there is any guide or steps to do the same really helpful.

Regards

Nirmal

[CarlosCasillas]

Hi Nirmal,

In general, to program external memories trough JTAG, it is required a Flash driver, to be loaded on the memory of the target processor that is being accessed by JTAG, being able to transfer the data to the external memories.

You could take a look at the following document from Lauterbach:

http://www2.lauterbach.com/pdf/emmcflash.pdf

Additionally, the i.MX processors have a serial downloader mode on UART and USB that helps to download the boot images to flash memories.

Hope this will be useful for you.
Best regards!
/Carlos
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