Priority interrupt?

[DynamoBen]

To give you any more assistance we will need more information.
What you are explaining is way too vague and ethereal to give an accurate answer.

What specifically are you trying to do? What are these “signals” you are trying to receive? What are you trying to output? What type of chip are you using? What ports are these “signals” connected to?

[Qacer]

Hiya!

Well, let's say the signals are a sample of an analog signal rectified and sent to a multivibrator to turn them into a pulse representation. The pulses are then sent to a pin to a PIC. I don't have any specific chips in mind, but I'm thinking maybe a PIC12F675.

The signals come from multiple sources. Let's say three. So, I would use three pins from the PIC. Then, when the PIC detects a signal, it is supposed to do some processing and then re-route the signal via a separate analog switch. The PIC would control the analog switch.

So as different signals come along from different sources, then the PIC is supposed to prioritized them based on which source the signal comes from. So, if the PIC is processing a signal from a 2nd priority source and a 1st priority signal comes along, it is supposed to stop what its doing and process the 1st priority signal.

[DynamoBen]

Interrupts are determined by the pic you choose.

The only interrupt that might apply, depending on the pic, is PortB change. Even then all it would do is jump to a sub anytime one of the affected ports changed status. You still would need to write code to determine the "priorities" you are speaking of.

Based on the application interrupts are not going to be any assistance to you. You are going to have to do this conventionally by polling each pin and writing conditional statements. Interrupts don't function in the way you are hoping they would.

I would assume this if for the following project http://www.picbasic.co.uk/forum/showthread.php?t=4772

[Qacer]

Hello,

Yep, it is for that project. I thought about polling the pins, but that would take extra battery charge, which I really don't want to do.

Thanks!