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RaTh_2806906
Level 1
Level 1

Hi all,

I'm up to replacing our own flash file system with one that has more features.

I came across the Spansion FFS and would like to compare it to littleFs and SPIFFs.

I searched through a lot of the documents that I received about the Spansion FFS but could not find anything on the resources (program / data memory / RAM) that is being used.

I am using a TIVA Cortex-M4F processor and would like to access a S25FL127S by SPI (1 data wire, only).

Could someone give me a direction, please?

Best regards,

Rainer

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AS_36
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 250 replies posted

Hi Rainer,

Thank you for your response.

As per our measurement before, if you use whole 128Mb for FFS, the minimum RAM consumption is:

7KB (BD) + 7KB (FS) + 5KB (stack) = 19KB

Regards,

Apurva

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AS_36
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 250 replies posted

Hi Rainer,

Thank you for contacting Cypress Semiconductor.

I am not clear about your query. Are you requesting for the Cypress FFS package or are you requesting for a code example that demonstrates the FFS package usage?

Regards,

Apurva

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Dear Apurva,

I have the code but like to know which amount of RAM and  program memory is being used in the processor.

Some call it a footprint. Just like this, e.g.

http://elm-chan.org/fsw/ff/doc/appnote.html#memory

Just to check if it's feasible for my project before I integrate and compile it.

Best regards,

Rainer

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AS_36
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 250 replies posted

Hi Rainer,

Thank you for your response.

As per our measurement before, if you use whole 128Mb for FFS, the minimum RAM consumption is:

7KB (BD) + 7KB (FS) + 5KB (stack) = 19KB

Regards,

Apurva

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Thanks Apurva,

do you also have a rough idea on the program memory footprint?

Best regards,

Rainer

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AS_36
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 250 replies posted

Hi Rainer,

The program memory will consume roughly 108KB (based on rough calculation).

Best Regards,

Apurva

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