Hi all ...

my english is not the best, but i hope you will understand me ... ;-)
firstly thank you sFischer for your work ...
i got a running Raspi with Lazarus/Freepascal and your rpi_hal to read the Ports of the Piface in a thread to update (100ms) my Gui.
It works really fine, i needed a while to understand all the things about and around the Raspi (never worked with Linux before and never bind Units from other programmers in Lazarus) ... but it's allmost done ...
Now it's a point where i need more Inputs to my Pi ... i read about Pi Rack and the ability to add PiFaces up to 4 to ONE PI ...
My Problem is, how can i get to communication to an other PiFace, means to the SPI address 1 (default is 0; Jp1(0);Jp2(0))!?
any ideas for me? is it possible with your unit rpi_hal?
Thanks a lot for all help.
Greetz Tom / justtt