http://forum.microchip.com/tm.aspx?m=196742 So ICE2000/ICE4000 will not support any 3.3V operating part. This includes the dsPIC33F/PIC24F/PIC24H devices and the PIC18FXXJXX devices. It seems that Real-ICE is the way to go if ICD2 is too slow. I think ICD2 is too slow for bigger dsPIC33/PIC24. Regards, Xiaofan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist