I need someone to help me decide on a design involving interrupts. I'm trying to decide to use a separate PIC just for the simple task of reading one analog input and providing a binary input to another PIC device. This is as opposed to having it done in the larger PIC with other code in the loop. In other words I want the A/D read to have no delays - simple reads and an out when compared to a 1-255 number. My gut tells me thats what interrupts are for - have an interrupt just for reading the Analog input on a pin, reading all the time. Am I correct?
My thought for the single device is a 10F222 - one issue is I'd need two programming headers if I want to do ISP