Post by thread:Unwanted Periodic Interrupt

Hello... Can anyone help me with this problem. I am using the PIC16C65A for my project. I use MLAB 3.12 in simulation mode to do the programming. Since 65A is not in the list of processors simulated by MLAB, I choose 74A. The problem I encounter is that I keep on getting periodic receive interrupt during the simulation. I really wonder what have I missed out. How can I get receive interrupt when there is nothing to trigger it? I wanted to use the USART receive interrupt but I just cannot figure out why it keep on interrupting me periodically with nothing to trigger it. Is there any configurations I need to set in MLAB or any registers I nee d to set? I have turned of al the other unwanted interrupt ( at least I think ) by setting the values of INTCON to B'11010000', PIE1 to B'00100000' and PIE2 to B'00000000'. All assistance will be greatly appreciated. Pls. bear with me if the question seem to be elementary...... Chong spam_OUTchongwpTakeThisOuTadroit.com.sg