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[avr-gcc-list] Re: Larger than 64K memory sections

From: David Brown
Subject: [avr-gcc-list] Re: Larger than 64K memory sections
Date: Wed, 26 Aug 2009 13:55:53 +0200
User-agent: Thunderbird (Windows/20090605)

Parthasaradhi Nayani wrote:
Hello all,
I am using a 4MB flash memory with my Mega64. I would like to create a memory section for the entire 4MB. Is it possible? If yes, how can this be done in the makefile? Thank you very much for your time.


You can't directly access such large memory areas from an AVR, therefore it makes no sense to talk about a memory section for it. You have to manually implement some sort of access to the memory (for example, you might have the device connected to the standard external memory bus, which provides the low address bits, then use paging for the higher bits).

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