not suprised you got no take up on this
Does Anybody use MCP23017 port expander with proton basic?
Posted on: May 16, 2008, 12:22:54 12:22 - Automerged
that a question
I think nobody used MCP23017 ?
This IC is 16 port bidirectional IO port expander.
Controls with SDA and SCL type bus.
I'm trying to use it but some functions does'nt work .
Statement and it must work or microchip would not sell them.
you do not say what funtions you can't get to work, again if they are in the data sheet, they sould work.
the MCP23017 we have used then in my place of work, but I'm off on sick leave, so can't look project up.
I don't remember any problem using them, with 16F690 and the 18F2550.