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Topic: SD error 0XA and 0X1 when changing to net supply (Read 729 times) previous topic - next topic

dieselboris

Jun 12, 2012, 09:05 pm Last Edit: Jun 12, 2012, 09:51 pm by dieselboris Reason: 1
Hi all,

I use the SdFat library.

I log data from 8 accelerometers at 50 hz on a SD card. While this works fine when the arduino is fed trough power supply instead of USB, the sd card module stops working. It states

Code: [Select]
Can't access SD card. Do not reformat.
SD errorCode: 0XA


This typically happens when i first power on USB, then (while running) plug the net supply and press reset.

Sometimes the reported code is 0X1. I cannot reproduce when this happens exactly.

I read in another post that this could be due to power issues: http://arduino.cc/forum/index.php?topic=87325.15;wap2

Since i change the power supply it seems most likely that this is the source of my problem.

What can i do to fix this?

EDIT: i think i need this: http://www.ladyada.net/library/equipt/diypsupp.html Please confirm!


Thank you

my adapter:


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