Is the DIG_Block_Check() has a different functionality with the DIO 6534 than with the DIO 6533? I am using double buffering and external source to trigger,pattern generation, ni 6534 and CVI,NT. I am using DIG_Block_In and the half buffer transfer to keep cycling the buffer and I don't want it to stop until the user uses clicks a button to stop and I call DIG_Block_Clear(). I want to use DIG_Block_Check() to check for erros but not to halt the double buff operation. Is this possible?