Clarification on SD Card size limit (32Gb?)

Proffieboards
21

Was this ever solved?
I just bought the same one from a legit store.
Copied he contents from one sd to the other and after about 5-10 seconds its says SD card not found.

22

If theyā€™re bigger than 32Gb you need to remove any existing partitions, create a new 32GB partition and then format FAT32
But 32GB cards should be able to be reformatted as fat32 stright up - not sure what they come from factory formatted as

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23

Iā€™ve been speaking to a guy in UK who specializes in SD cards and heā€™s sending me a few different cards to test. If I manage to nail down a type of card that works well, Iā€™ll post a link to them here. If that happens, I imagine heā€™ll have a bit of a rush on them. :confused:

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24

Only the microsoft FAT32 formatter has a 32Gb limit.
The SD association formatter will happily create much larger FAT32 partitions. (Up to 2 Tb I think.)

25

I removed the partition and created a new FAT32 one.

Still nothing.

@profezzorn Itā€™s 10 seconds of silence before it says Font directory found, then 2 seconds quiet and it goes ā€œSD card not foundā€

26

Did you use the SD association formatter?

27

Update :
Even the SD association formatter gives the same result.

28

yes, insertcharactertomeetlimit

29

I canā€™t think of a reason why a freshly formatted SD card (sing the SD association formatter) would give ā€œSD card not foundā€. Seems like there must be something wrong, either with the board or with the SD card.

30

Tested on 2 different boards. Same behavior.

Tested with 2 different SD cards. Same behavior.

Iā€™ll record it tomorrow.
Do you want me to open a new issue for it?

31

A new issue for what exactly.
Do you know what isnā€™t working?

32

No. I will try to dig further into it though.

Rn both SDā€™s are just not recognized and seemingly considered missing.

33

I think Iā€™m confused because youā€™re posting in a thread about 32gb partitions.
Please check that you have the right kind of Proffieboard selected in Arduino->Tools->Board. If thatā€™s not the problem, start a new thread, post your config file and maybe we can figure it out.

2 Likes
34

Kyoxia was toshiba and have the best ssd and sd cards Iā€™m curious what the cost was though.

1 Like
35

The main reason big SD cards are slower is related to how it does blocks and sectors. SD cards donā€™t have anything like trim, and they get super fragmented over time. Also, pretty much all of them go slower when using backwards compatibility. So if you have an SD HC device, an SD XC card will work slower and I believe 32tb or 64gb is the cap of sd hd (donā€™t think itā€™s a hard cap, they just switched to XC when they made it to those densities).

That said, at least with 3.9 at least, I donā€™t think it should be as temperamental about card speed.

Real question is you bought 64+gb of fonts :open_mouth: ?!

lol