How to expand GPMC address space up to 1GB of AM335x

Kane Jia

Hi:

I have an application which need to connect 1GB Nor flash to AM335x. I noticed that the GPMC address space is only 512MB. Is there any way (SW/HW) to connect 1GB NOR flash?

Thanks in advance.

Kane

over 12 years ago

0 Biser Gatchev-XID over 12 years ago

TI__Guru**** 393215 points

Hi Kane,

You could use a GPIO as the highest address bit and switch between two 512MB pages, if your use case permits it.

0 Kane Jia over 12 years ago in reply to Biser Gatchev-XID

Prodigy 50 points

Thanks for the reply!

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How to expand GPMC address space up to 1GB of AM335x