Hello world :-) There are platform specific drivers for GPIO and the IO Expander driver.
Which one should I use? What are the advantages of using Arch/Board hardware GPIO driver versus IO Expander? What are the drawbacks? Does IO Expander provide custom IRQ callbacks to GPIO input? Which one would provide platform portability (that is should work on a real hardware of different sort and/or sim)? How to interact with GPIO on the Simulator? Is there a client application that would allow easy control of GPIO inside the Simulator (i.e. unix/tcp sockets)? Is something like Verilog test bench possible? Any hints welcome :-) Tomek -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
