Hi,
I am developping an application that must access the memory mapped registers of the Tungsten C (Palm OS 5.2 / Intel PXA255 / ARM Architecture). According to the PXA255 specs, all memory mapped registers fot peripherals are at addesses 0x4000000+, but when I try to access one of these address, I get a "Fatal Exceptoin" alert. For instance, to read the Timer Counter register: UInt32 * PXA255_OSCR = (UInt32 *)0x40A00010; UInt32 val = *PXA255_OSCR; // Fatal exception! I try this also with the debugger and simulator, I get this error: Run68K.c, Line:2204, Invalid read from 40A00010 EXCEPTION ID = $BC What is the problem? Jean-Francois _______________________________________________ No banners. No pop-ups. No kidding. Introducing My Way - http://www.myway.com -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
