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Re: I2C and SPI porting help


On Fri, 2005-10-28 at 15:38 +0100, Will Wagner wrote:
> Gary Thomas wrote:
> > On Fri, 2005-10-28 at 15:21 +0100, Will Wagner wrote:
> >> Carlos Sobrinho wrote:
> >>> Hello there.
> >>>
> >>> I'm working with a AEB-1 board and I implemented the SPI and I2C buses with 
> >>> bit bang but now I would like to migrate my code to use the cyg_i2c_* and 
> >>> cyg_spi_* infrastructure. 
> >>>
> >>> I read the hardware porting guide but I still need some more info.
> >>> Can anyone point me in the right direction? Maybe give a example?
> >>> I read that I only need some basic io in some functions and I need to pass the 
> >>> function pointer to the I2C/SPI struct.
> >>>
> >>> Do I need to add something in the packages/dev/spi... or can I use it in my 
> >>> own application?
> >>>
> >>> Any information would be gladly appreciated
> >> I can send you my implementation of SPI using an MPC866P if you want an 
> >> example.
> >>
> > 
> > Could you post it here (so we may all benefit)?
> 
> Very happy to post it. Should I be posting it here or the ecos devel 
> mailing list? I would like to just tidy it up a bit first before 
> submitting it. I also have a whole load of other changes to support the 
> 866P that I'd like to submit, I thought I'd tidy it all up and then 
> submit it all at once.
> 

That's fine.  You can send it to the devel list, or just as a patch 
to ecos-patches@ecos.sourceware.org  Also don't forget we'll need a 
copyright assignment (we have to have very clear ownership of anything 
included into CVS).  Review the documents at   
  http://ecos.sourceware.org/ecos/assign.html

> > 
> > Does it use the cyg_XXX infrastructure?
> 
> Yes it uses the cyg SPI infrastructure. It is heavily based on the arm 
> at91 code checked into anoncvs.
> 
> > 
> > Thanks
> > 
> 
> -- 
> ------------------------------------------------------------------------
> Will Wagner                                     will_wagner@carallon.com
> Senior Project Engineer                        Office Tel: 0207 371 2032
> Carallon Ltd, Studio G20, Shepherds Building, Rockley Rd, London W14 0DA
> ------------------------------------------------------------------------
> 

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


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