aamir shabbir
Member
Hello everyone,
Guys i am facing problem in interfacing 82C55 with Atmega16. I want to control many I/O's through avr thats why i chose 82c55 but the problem is when i configure its control word by sending 80H to make all ports output then i send data for portA but the IC doesnot respond. What might be the problem. ???It would be very kind of you if any one can help me in solving this problem.
The proteus file is also attached for reference.
Guys i am facing problem in interfacing 82C55 with Atmega16. I want to control many I/O's through avr thats why i chose 82c55 but the problem is when i configure its control word by sending 80H to make all ports output then i send data for portA but the IC doesnot respond. What might be the problem. ???It would be very kind of you if any one can help me in solving this problem.
The proteus file is also attached for reference.