Re: [Flashforth-devel] SPI FRAM memory drivers

[om1zz <om...@vo...>]

Hi, much more optimized code there. WR/RD bytes, words, doubles and quads into/from FRAM, speeds up to 300kB/sec with quads at 27MHz Fcy. I may try with my magnetic MRAMs, but a microscope needed for the soldering job :)
Igor

______________________________________________________________
> Od: om1zz <om...@vo...>
> Komu: "flashforth-devel" <fla...@li...>
> Datum: 24.05.2015 19:33
> Předmět: [Flashforth-devel] SPI FRAM memory drivers
>
>Hi, at
>https://github.com/igor-m/flashforth/tree/master/examples
>are examples of SPI drivers for FRAM SPI memory (byte, word, double access) working with dspic33fjgp128/pic24 etc.
>It is a quick hack to see how the stuff works, and it works.
>Needs to be optimised a bit however, asm must be used where applicable in order to speed the stuff up. 
>My memories are over 64kB so they have got 3 bytes long address. Currently there is a block number (64kB per block) and an address within 64kB. Mind you have to care about proper alignment as the address step is 1 or 2 or 4 for above types.
>More in sources.
>Igor.
>
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