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Is it possible to use BANKA and BANK B for m4 core with LPC4357?

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Is it possible to use BANKA and BANK B for m4 core with LPC4357?

‎12-07-2016 03:58 PM
719 Views
iwaomizota
Contributor I

I am using LPC4357.

We would like to use below mapping. Is it possible?

M4 core: 768kByte (BANKA 512kB BANKB 256kB)

M0 core: 256kbyte (BANKB 256kB)

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‎12-08-2016 01:23 AM
527 Views
thefallguy
Contributor IV

Yes, it can be done, BUT you will have serious bus contention on the shared Flash (Bank B) that will slow down both cores. It is much much better to have the M0 run from a completely separate memory bank - in your case one of the RAM banks.

See this FAQ: https://community.nxp.com/message/637967 

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