External code memory for mega128

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Jacob
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Joined: Mon. Apr 30, 2001
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Location: Trondheim, Norway
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Posted by Jacob: Wed. Jun 4, 2003 - 04:30 PM
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Hello

Have anyone tried to use external code memory (flash) with mega128?
Is it working well?

Thanks.

Jacob

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AVR Microcontrollers, megaAVR and tinyAVR, ATmega128
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lee
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Joined: Mon. Jun 9, 2003
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Posted by lee: Wed. Jun 4, 2003 - 04:50 PM
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No standard AVRs can use external code memory--only internal flash memory can hold instructions due to the architecture.

This has been discussed on the Forum many times before--search out the applicable threads.

Alternatives include a tokenized language with the program tokens fetched from external data storage and interpreted by a kernel in the flash memory of the AVR.

Lee

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