Lpc2000

--- In lpc2000@yahoogroups.com, "Bruce Paterson" <bruce.paterson@b...>
wrote:
>
> > > > Same experience here. Tried to do the interrupt thing, now I just 
> > > > start the SPI transfer, do some other stuff and then poll 
> > until the 
> > > > transfer is ready. Is there anybody that has used the SPI 
> > interrupt 
> > > > successfully???
> > > 
> > > I use SPI interrupts for SPI transactions and haven't run into any 
> > > issues as yet. Mind you it's on a lpc2124, not an lpc2138. My SPI 
> > > module is part of the lpc newlib extensions.
> > 
> > Hey Bruce,
> > 
> > Care to enlighten me about that last comment.
> > 
> > > lpc newlib extensions
> > 
> > I've been meaning to go through the newlib re-entrancy 
> > configuration etc to see what needs to be turned on for 
> > uCOS-II thread-safe usage, and to create some sort of device 
> > operations table interface (as per Bill Gatliff's docs from 
> > Embedded Systems Programming).
> > I saw a post the other day from someone at Aeolus regarding 
> > their newlib port layer (perhaps that was you)
> > 
> > http://www.aeolusdevelopment.com/Articles/download.html
> > 
> > anyways, if you have a nice clean way of implementing a 
> > device layer, let us know and people can contribute with a 
> > common interface.
> 
> No it wasn't me. It was the Robert Ansett, the compiler of newlib_lpc.
> I'm not sure if he has rolled my SPI module into his latest newlib_lpc
> release as yet, but if necessary I can email it to you.
> Yes, it is good to conform to a common interface, and due to other
> newlib_lpc modules being available it significantly cut down my overall
> effort, even though I coded the SPI, and added some zero-copy options to
> the the uart modules.
> The easiest way to code a new module is to copy an existing one and
> modify the bottom end. In this way I have also created an IIC module,
> but haven't had a chance to test as yet. Robert also has a copy of that,
> but beware it is probably buggy.
> 
> Cheers,
> Bruce
>

I'd be interested in the newlib_lpc SPI module as well (interrupt
driven, of couse).

Thanks,

Gary