BSP for 405EX

[Thomas Doerfler]

Nigel,

the 405 core is supported.

Don't be confused: quite recently we dropped support for a"gen405" BSP, 
because it was still stuck to the "old exception model". Background: For 
some years, there were two methods to hook exception handlers and 
interrupt handlers to a PowerPC-based system. gen405 was one of the last 
BSPs that used the "old exception handling" scheme and was dropped some 
weeks ago.

But: the "virtex" BSP is also based on a 405 CPU, and it works with the 
"new exception processing", so this BSP will be a better base for your work.

The next step for you should really be to build a set of drivers, 
possibly in "c/src/lib/libcpu/powerpc/ppc405" and a BSP in 
"c/src/lib/libbsp/powerpc/haleakala" (or which name might ever be 
applicable).

wkr,
Thomas.


Nigel Spon schrieb:
> I have been experimenting with RTEMS 4.8 on my Mac under OSX, and  
> things seem to be working. I have managed to build a powerpc-gdb and  
> connect to my target board via a PC running the Macraigor remote gdb  
> tool, so it looks as though I can actually develop and debug with this  
> configuration, which is pretty encouraging (and a bit of a surprise,  
> to be honest).
> 
> The target board is an AMCC Haleakala eval board and has a PPC405EXr  
> processor, for which no BSP exists. I presume my next step is going to  
> be to build a BSP, but the documentation seems to indicate that if the  
> processor isn't supported I have to take other steps first. I'm not  
> sure if the processor is supported; the 405 appears to be, is that all  
> I need? I'm also wondering what to base my BSP on, and if I should  
> stay with 4.8 or go to 4.9? The PPC405EX has quite a few onboard  
> facilities (Ethernet, timers, UARTs) that I presume could go into a  
> fairly generic BSP for the 405EX. Is this the right way to proceed?
> 
> 
> --
> "The command could not be completed because it cannot be moved into  
> itself"
> 
> Michael Hamel
> 
> 
> 
> 
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