NVRAM component does not support 4Kbit FRAM !?

PeGu_352656 Feb 23, 2018 5:48 AM

Hello,

I found that NVRAM SPI component does not support 4Kbits FRAM memory?

Is there any specific components or driver for them?

The problem is that 4Kbit memories has only one byte address.

thank you

1. Re: NVRAM component does not support 4Kbit FRAM !?

YuxianL_01 Feb 25, 2018 11:52 PM (in response to PeGu_352656)

Hi,
Are you using this code example?
http://www.cypress.com/documentation/code-examples/ce219174-interfacing-spi-nvram-psocr-4

Thanks
Roy
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2. Re: NVRAM component does not support 4Kbit FRAM !?

PeGu_352656 Mar 5, 2018 12:20 PM (in response to YuxianL_01)

Hi,

Yes I do and this example is working fine, because when you write the sequence, it makes sequential write and this hides the problem.
When I try to write/read to a specific addresses, then there is a problem. In the drivers source code I found that there is no option for single byte addressing, which is the unique for 4kbit FRAMs compared to the others. When I modify the file with a single byte addressing then the memory read/write works fine.
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3. Re: NVRAM component does not support 4Kbit FRAM !?

YuxianL_01 Dec 27, 2018 9:36 PM (in response to PeGu_352656)

Thanks for sharing. As this thread is aged, pease share your experience or ask question(if required) from a new thread.
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