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FRAM lib compatible with both FM25L16B and FM24C16B

 
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hzz

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Joined: 20 Feb 2007
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PostPosted: Mon Sep 06, 2021 12:24 pm    Post subject: FRAM lib compatible with both FM25L16B and FM24C16B Reply with quote

I have XMEGA256A3U boards with FM25L16B with a software using "fm25c256.lib"
There is a shortage of FM25L16B, but FM24C16B-G is available so I will make new boards with the FM24C16B-G instead.
Is there a way I can use the same software for both? It seems "fm25c256.lib" is made only for the FM25L16B chip

Both chips seem equivalent except for the max SPI speed (20Mhz in the case of the FM25 and 1MHz for the FM24) but I can't see where is the speed configured in fm25c256.lib
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Klauss

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PostPosted: Tue Sep 07, 2021 2:44 pm    Post subject: Reply with quote

The FM25xx is SPI and the FM24xx is I2C.
You'll have to change the hardware.

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hzz

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PostPosted: Tue Sep 07, 2021 5:22 pm    Post subject: Reply with quote

Thanks Klaus!

What a poor analysis I did!

It seems there is no alternative to the FM25L16B then. I'm getting lead times longer than 50 weeks.
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albertsm

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PostPosted: Tue Sep 07, 2021 7:59 pm    Post subject: Reply with quote

how many would you need of the FM25L16B-G ?
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hzz

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PostPosted: Fri Sep 10, 2021 11:37 am    Post subject: Reply with quote

Hello Mark, I need 3 now for prototypes and 200 more this year. I have seen tha Mouser will receive several thousand in October so I will wait.

What I cannot find is XMEGA256A3U. I also need 200 this year.
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albertsm

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PostPosted: Fri Sep 10, 2021 11:49 am    Post subject: Reply with quote

you best send me an email at support.
the xmega is no problem.

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