11-24-2009 01:11 PM
I'm running Linux on a PowerPC (VirtexFX). I want to access a FSL coprocessor from my user application (I managed to apply the xilinx_apu patch to my binutils). But it seems that the fsl "put/get" command is only executable in the privileged mode (here: = kernel mode): I get a "Illegal Instruction" error.
How could I access coprocessors (FCM) from user space? Esp. how to code this (with asm?)?
What is the difference between UDI and APU decoded instructions considering the priviledged/user mode?
11-30-2009 04:02 AM
You can take the reference of UG200 for APU and interfacing given in. For this you can refer this system http://www.missinglinkelectronics.com/support/atta
I hope this will help you.