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Discussion Groups | Freescale DSPs | Trying to run Mode 0B on a DSP56F807

Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).

  

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Trying to run Mode 0B on a DSP56F807 - Peter Becher - Feb 1 19:09:00 2006



Hi All,

I am trying to run Mode 0B on a DSP56F807 and not having much luck.  Has anyone else tried
that?

I am using CW 5.1 and SDK.  My program runs just fine in Mode 0A but freaks out (basically does
not boot properly) in Mode 0B.  So you wonder why I want to run Mode 0B then?  It's a long
story.

My program fits in the lower 32k of pFLASH (0x0004 to 0x6FF) and I think I have changed the
linker.cmd properly but am not sure.  The problem I see is, how does the program know that the
pRAM has been remapped to the lower 32k of memory when switching to Mode 0B.  The only thing I
see that goes into pRAM is the data from paramdata.c which looks like stuff the Interrupt
Dispatcher uses.  I use both Normal and SuperFast interrupts.

Any thoughts?

Thanks,
Pete
	


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