Sdcardexception

NETMF & Gadgeteer
1

When i try to use the sdcard…i get an exception? Using netmf v4.3…any suggestion?

 SDCard sdcard;
  sdcard = new SDCard();

I get this exception…

#### Exception System.InvalidOperationException - CLR_E_INVALID_OPERATION (1) ####
#### Message: 
#### GHI.IO.Storage.SDCard::NativeConstructor [IP: 0000] ####
#### GHI.IO.Storage.SDCard::.ctor [IP: 0029] ####
#### GHI.IO.Storage.SDCard::.ctor [IP: 0005] ####
#### ZigmateGadgeteer.Program::ProgramStarted [IP: 05a3] ####
#### ZigmateGadgeteer.Program::Main [IP: 0015] ####

A first chance exception of type ‘System.InvalidOperationException’ occurred in GHI.Hardware.dll
An unhandled exception of type ‘System.InvalidOperationException’ occurred in GHI.Hardware.dll

2

Are you sure that SD card is present and properly formatted?

3

@ andre.m - not sure what you mean? I am using the Fez Cobra II by the way.

I will also check if SDCARds are formatted, bit i would have thought it would allow me to initialize the sdcard before even if the sdcard is formatted incorrectly.

4

I use the following with pure netmf to create and use the SD card on a G120 or G400 system.


sdcard = new SDCard(SDCard.SDInterface.MCI);

Maybe try to pass in the type as I have done and see if this works? In saying that, with no parameter it should default to creating the MCI type.

5

That exception is usually because bad connection or bad card. Try to different card, format by PC, eject - reinsert again…