LV embedded on Luminary lm3s8962 Eval board does not reliably write to SD card

[philip.holoch@sulzer.com]

I'm using LV embedded for ARM (2010) and a Luminary LM3S8962 eval board. When trying to write to the integrated micro SD card slot it sometimes works and sometimes it doesn't. To verify that I didn't do any mistakes I've used the SD_Card_Write.vi example and slightly modified it with a while loop around it with the same result (see attachment).

I'm using Kingston micro SD cards with 2 GB. They are NOT of HC type. The cards have been formatted with FAT16 and FAT32 without success.

Has anyone an idea how to solve this matter?

Thank you and Regards,

Philip

[LamD.]

Hi Phillip,

this perhaps this is caused by a buffer overlow.

Have you tried a queued master/slave loop implementation?

I got an example here, if you combine it with your programme this might work.

Greetings Lam

[florianlm]

Hello,

I have the same problem. Have you resolved it?

Regards.

florian

[philip.holoch@sulzer.com · Accepted solution]

Problem is solved!

Use 512 MB SD Cards. Hard to find meanwhile....

Regards,

Philip

[florianlm]

Thanks I will try when I found it. But I don't know why I can write just sometimes in the 2go micro sd

regards

florian

[florianlm]

Hello,

I have try with a 64mo sd card, it work one day but now no.... Your sd card is FAT16 or FAT32?

regards.

florian

[philip.holoch@sulzer.com]

FAT32

Regards,

Philip