Irq time response with rtai + linux-2.4.20 kernel with a mvme5500
grave at ipno.in2p3.fr
Thu Nov 6 02:51:59 EST 2003
Everything is now running on my mvme5500 board :
linux-2.4.20 + motorolla patches + rtai 2.4.18 patches
our local universe driver with a few modifications
After a setpci in order to have a sufficent pci window for the tundra
windows (Thanks to Ajit Prem) everythings works.
We have setup a test crate with irq at 500 Hz. The irq handler write to
the VME only after 4.3 microseconds. The only bigger value is about 6/7
microseconds due to caching effects.
I will put order in the driver code before putting the sources on the
web (mixed code from 2300/5100 with the one for the 5500 board).
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
More information about the Linuxppc-embedded