May 22, 2015 #1 E ellen Newbie level 4 Joined Jan 17, 2015 Messages 6 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 47 Hi i designed a fulladder in proteus.it is working. but when i gather them in one block.one of the logic probes that present the outputs digits show a qoestion mark(high impedans)i think why?? confused by this happening.
Hi i designed a fulladder in proteus.it is working. but when i gather them in one block.one of the logic probes that present the outputs digits show a qoestion mark(high impedans)i think why?? confused by this happening.
May 29, 2015 #2 V Vijay Karthik Kumar .A Newbie level 3 Joined May 29, 2015 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Location Hyderabad Activity points 11 Could you post the schematic for better reference?