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Sarek
Joined: 15 Oct 2009 Posts: 72
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Posted: Thu Aug 19, 2021 1:15 pm Post subject: which microSD ?? |
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Hello,
I use a microSDHC for data logging on a XMega.
Now we have severe problems with the SD-Cards, we use Intenso 4GB Class 4 microSDHC.
About 50% of about 100 Cards are running, but the other 50% do not...
I called Intenso support, and they told me that SPI Interface is not in their specification, because this is a consumer product.
Has someone an idea which microSD we can use? They should be 100% SPI compatible!
Thanks |
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plouf
Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece
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Posted: Thu Aug 19, 2021 2:30 pm Post subject: |
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you just reached "first level support" who can tell up to how to format it
try with kingstone
reason is that they have the specification ON THEIR SITE -> http://www.kingston.com/datasheets/SDCIT-specsheet-64gb_en.pdf
which clearly states that card support both SD and SPI interface
at any case you can reach somehow someone,in case of problem, (someone must put this pdf online) |
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Sarek
Joined: 15 Oct 2009 Posts: 72
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Posted: Thu Aug 19, 2021 2:42 pm Post subject: |
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Thanks plouf
but this datasheet is for SDXC Cards, which are not supported by AVR-DOS.
Do you have any experience with Kingston Cards and AVR-DOS? |
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plouf
Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece
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Posted: Thu Aug 19, 2021 2:54 pm Post subject: |
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no i have no personal experience
hoewever this is for kingstone and sdhc
www.kingston.com/datasheets/SDCIT-specsheet-8gb-32gb_en.pdf
they clearly state it..
and at least seems that in Kingstone they KNOW what spi is , and what their cards support !! |
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Duval JP
Joined: 22 Jun 2004 Posts: 1161 Location: France
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Posted: Thu Aug 19, 2021 4:15 pm Post subject: |
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did you format the sd card before use it ?
see https://www.sdcard.org/downloads/formatter/
I use a lot of Micro SD card mainly sandisk 8Gb SDHC I never have pb
JP
_________________ pleasure to learn, to teach, to create |
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Sarek
Joined: 15 Oct 2009 Posts: 72
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Posted: Thu Aug 19, 2021 4:25 pm Post subject: |
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Yes I tried to format it with SDCARD org Formatter
I order now 10pieces of Kingston microSDHC 8GB
this is Industrial version
I will test and report here |
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Sarek
Joined: 15 Oct 2009 Posts: 72
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Posted: Thu Aug 19, 2021 4:34 pm Post subject: |
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@Duval JP
It seems that the small Sandisk (4/8GB) microSDHC are End of Life. => poorly available |
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