[Tinyos-2.0wg] msp430 i2c

[Philip Levis]

On Aug 1, 2006, at 10:34 AM, Vlado Handziski wrote:

> On 8/1/06, Jonathan Hui <jhui at archrock.com> wrote:
>
> FYI, I checked in an msp430 implementation of the tinyos-2.x i2c  
> interface.
>
> This will probably have to change to accommodate Vlado's proposed  
> usart
> stack changes. I was waiting to check them in after those changes get
> finalized, but that process is taking a bit longer than expected and
> there has been some demand for an i2c driver on the msp430.
>
> That's great news!
>
> As far as we (TUB) are concerned, we can merge the experimental  
> branch with the main development branch immediately. However, I did  
> not receive any comments about the effects of the changes on other  
> msp430 platforms apart from eyesIFX. For example, with the new  
> changes, reconfiguration is happening after every request/release  
> cycle, leading to reconfiguration of the SPI for each packet on  
> telos for example. If there are no objections, we only need to move  
> from passing the config by value into passing by pointer (to unify  
> with the way it is done for the ADCs and to save a bit on the  
> overhead) and merge. The TDA5250 is fully updated to work with the  
> usart changes as well as with the new resource arbitration code  
> from Kevin.
>

I'd say, just check it in. Don't block on silence. If we run into  
issues, we can cross that bridge when we get to it. TUB owns much of  
the MSP430 code, so go for it.

Phil