Hi:
i am using 89C51RD2xx for my project ........i have used MAX 232 for interfacing between the computer and the controller .........but the flash magic is giving me problem while burning the code ......it says "Unable to connect (in use).Ensure no other application is using COM port.Try raising or lowering the baud rate."
please tell me the cause and solution of the problem........
When you say "while burning the code" does that mean programming starts and does not complete? Or do you get this error "before burning the code"? In the later case you might want to double check if the COM port you are using is really up and running and available. Depending on your computer's configuration the port could be used/reserved for a terminal program or a dial-up connection...
Olaf
Post Edited (02-28-05 06:54)