Is there an inexpensive way to add a chip to a pic that will let one change what signal exists on each line. I am not looking for a port expander but rather a way to move signals around between connectors without making a new board.

You could do this with a fpga. I was hoping for a ready made solution. Maybe I2c controled.

 

You mean you basically want a switch so you can select different inputs to the PIC?.

If it's analogue inputs?, there are various suitable CMOS switches available.

You really need to be more specific what you're wanting to do.

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PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

I am thinking about a reconfigurable IO system rather then attempting to solve a specific problem.

On some PICs CCP can be moved between two pins using a control register bit. I was wondering if these is a chip that goes between the processor and connectors that allowed you to remap all IO pins.

EDIT:
I am fairly sure you can do this with a $10 or $15 fpga. I am looking for a chip designed to do this.

 

Trying to find a general solution for a non-specific probelm is always going to be expensive and over complicated. The PIC itself is already highly configurable, with most pins being capable of use as general purpose I/O. It's only the specific pins like serial IN and OUT which are allocated to particular fixed pins.

I really think you're looking for a solution to a problem that doesn't exist? - and if you really did want to do it, simple jumpers are all you need.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

The 24f series PICs have repinnable I/O the higher pin count ones. There's a program that helps you set them too.

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Bill
Smart Kits build Smart People
http://www.blueroomelectronics.com

 

Cool. I will check them out.

 

I just did a check out for myself.
Remappable pins. Microchip devices just keep getting better and better. The 24F series is incredible logically and prices wise.

 

But thats only the 24F. Otherwise you don't have remappable pins- you can often change the code to move the functionality to different ports but must always live with hardware limits of the various pins- PWM, UARTs, ADCs are tied to specific pins.

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I thought what I'd do was I'd pretend I was one of those deaf-mutes.

 

24F or not, the devices just keep getting better and better. 24F will expand as all the other series have done.

Now if the other Micro giant had a clue...

 

You might also check out the 16 bit I2C MCP23017 I/O Expander chip from Microchip...