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WhiteWizzard
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Posted: 12:49am 26 Oct 2015

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Hi,

Is anyone successfully using a SD(HC) card formatted as FAT32 with a 64pin MM+ (B37)?

I am still trying to resolve my LOAD IMAGE issue (that doesn't work on my SD card). I can still read & write program files to my 'old' SD card from a MM+ confirming all is ok with the SD socket.

However, any SDHC card I insert (formatted as FAT32) is not recognised by the MM+ in any way. The Advanced user manual says FAT16 or FAT32 is useable, and up to 64Gb (I am using 8Gb).

Also, does anyone know a way to format an SD card as FAT16 from W10? Only options available by default are FAT32, NTFS and exFAT.

Thanks,

WW

Grogster

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Posted: 12:55am 26 Oct 2015

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I doubt that W10 will allow anything other then NTFS or exFAT these days....

Even from the days of W8 and 8.1, Bill(Gates) would not allow you to format SD cards as FAT, and some big cards it would force NTFS.

Your best bet would be something like the SD Card Formatter from the official SD org guys. I use this formatter myself, and can't report any issues.

Smoke makes things work. When the smoke gets out, it stops!

MicroBlocks

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Posted: 01:06am 26 Oct 2015

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Just tried a few in windows 10 and i can choose NTFS, FAT32 (Default) and exFAT.

Microblocks. Build with logic.

Grogster

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Posted: 01:10am 26 Oct 2015

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I have an 8GB SDHC class U1 formatted in FAT32, and I can load images fine....

Smoke makes things work. When the smoke gets out, it stops!

WhiteWizzard
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Posted: 01:18am 26 Oct 2015

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Thanks G for letting me know yours works fine.

What on earth is going on here? E64, external SD socket, ILI9341 TFT & touch. SD card reads & writes files but appears too slow to keep up with LOAD IMAGE. 8G SDHC card (FAT32) just not recognised at all. Tried multiple SDHC cards now and nothing.

Will try the SD org guys and format in FAT16 to see if any different.

If all else fails then I am going to build a brand new 100pin MM+ set-up and try connecting everything all over again!

WhiteWizzard
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Posted: 01:19am 26 Oct 2015

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Grogs,

I feel sorry for your cat having to pose for all those pictures you keep taking!!

Grogster

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Posted: 01:27am 26 Oct 2015

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I have a folder of 'Funny Photos', so I just take one of them and resize so I can take a snapshot of it for the forums. Not my photos, not my cat. Funny photos keep the mood happy though.

Here is a link to the BMP of the above image if you want to try it out. BMP this time, not GIF....

Smoke makes things work. When the smoke gets out, it stops!

WhiteWizzard
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Posted: 01:31am 26 Oct 2015

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Grogster said . . . not my cat. . .

Don't believe you

SD formatter doesn't allow you to choose FAT16

100pinner here we come . . . . .

Grogster

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Posted: 01:39am 26 Oct 2015

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...isn't 2GB the FAT16 limit, so you would not be able to format an 8GB SD card in FAT16 anyway....

I need to check on that, but I seem to recall the old capacity limits for the old FAT filesystems..........

Smoke makes things work. When the smoke gets out, it stops!

WhiteWizzard
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Posted: 02:28am 26 Oct 2015

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Grogster said ...isn't 2GB the FAT16 limit, so you would not be able to format an 8GB SD card in FAT16 anyway....

I need to check on that, but I seem to recall the old capacity limits for the old FAT filesystems..........

I think you are correct. I am just at a loss as to what is happening.

Anyway, I have a 100pinner soldered to a PCB, just looking for 0603 or 0805 caps for XTAL.
Will then load up latest Beta and check the basics. Then to solder a SD card and ILI. Have to go out soon though so not sure how much more I'll get done.

Say hi to your cat

matherp
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Posted: 02:34am 26 Oct 2015

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Quote Is anyone successfully using a SD(HC) card formatted as FAT32 with a 64pin MM+ (B37)?

That is what I was using when you visited

WhiteWizzard
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Posted: 02:46am 26 Oct 2015

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matherp said That is what I was using when you visited

I wasn't sure if it were FAT16 or FAT32 so thanks for confirming. Seems like SDHC is only FAT32 so I should have answered that one myself. Head is totally battered with this so I am not thinking straight I guess.

Anyway, I still have problems so am building up a 100pinner and starting all over again.
Just two caps to find and then I can load the firmware . . .

twofingers

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Posted: 02:48am 26 Oct 2015

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Quote Max. volume size
2 GB (with 32 KB clusters)
4 GB (with 64 KB clusters)

Max. file size
2,147,483,647 bytes (2 GB - 1) (without LFS)
4,294,967,295 bytes (4 GB - 1) (with LFS)

Source

Michael

causality ≠ correlation ≠ coincidence

Grogster

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Posted: 02:50am 26 Oct 2015

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Not my cat!

But seeing as you love the cat so much - and to lighten the mood some more.....

Smoke makes things work. When the smoke gets out, it stops!

WhiteWizzard
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Posted: 03:50am 26 Oct 2015

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Grogster said Not my cat!

Denial hey!

Guess you had to give up the booze if you own a cat like that!

UPDATE: Got my SDHC reading ok on the 100pinner

But this is without the TFT & Touch connected. That comes next (time permitting) . . . . .

Grogster

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Posted: 05:27am 26 Oct 2015

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Good luck. Sure is weird.

Just passed my one-year anniversary - stopped drinkin' on 12th October 2014.

Smoke makes things work. When the smoke gets out, it stops!

CircuitGizmos

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Posted: 05:51am 26 Oct 2015

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Grogster said Good luck. Sure is weird.

Just passed my one-year anniversary - stopped drinkin' on 12th October 2014.

Excellent! Keep up the good work!

Micromites and Maximites! - Beginning Maximite

Grogster

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Posted: 03:12pm 26 Oct 2015

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Thank you.

Quite pleased with myself, I have to say, making the one year mark. Now clocking up year two. After twenty years of non-stop drinkin', it is actually a nice change being sober.

Smoke makes things work. When the smoke gets out, it stops!

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