Re: [Gumstix-users] A few questions about the gumstix

[Dave H. <dhy...@gm...>]

Hi Julien,

> I'm brand new to the Gumstix platform and to a lesser extend to Linux
> programming, so I have a few questions regarding this platform.
> First how do I install the programs I have compiled with the toolchain ?

It depends on the program.

> Do I need to flash the new buildroot each time ?

No.

> I need a fast way to test my
> programs (debugging process), how can I do that ?

I use a netMMC or netCF card and have an FTP server setup on my
development machine. I then use wget to grab files as needed.

Using NFS, you execute the files directly off of your development machine.

> Secondly, I need a fast shared bus to communicate with high speed
> peripherals (eg an FPGA that manage a VGA screen etc...), and also a few
> slow peripherals; therefore I though about a bus controller/ bridge
> connected to the PXA but how can I manage to do that ? Is it possible ?

Not sure.

> Finally, I have this LCD screen
> (http://www.dontronics-shop.com/product.php?productid=16381&cat=263&page=1)
> and as you can see there is some signals that I don't know how to interface
> with the gumstix like RS (register select), WR (write signal strobe), and RD
> (read signal strobe). Is there a way to connect them ? This LCD looks
> different from the LCD showed in the wiki.

This type of LCD has its own frame buffer. The RS line selects between
command mode and data mode. You can connect it to a GPIO line and just
ensure you set it properly before each transfer.

-- 
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/