We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hi everyone, i have met another problem that i am unable to solve for several days. The Falling Edge External Interrupt that i have set INT0 of the DS89C450 MCU is always triggering even when i do not trigger it by pressing the IR remote control.(And it shows 1000 characters of 'F' on the MTK.)
Basically my program is here: http://pastebin.com/atpb3EZy
Sorry. It is ignorant of me to post an unknown link. About the character "F", i have a case function that converts data of the IR Signals to ASCII code. Character "F" = 0x0F in hex.
However, the problem have been solved because of the hardware not having the common ground with the pcb board.
"However, the problem have been solved because of the hardware not having the common ground with the pcb board."
And that is a good example how readers on a forum have a very hard to help when the problem is caused by something that hasn't been described.