Re: [Botix-devel] Nesting drivers

[Wouter H. <ww....@zo...>]

Of course everything is possible, but the main limitation here is
memory. If I would add such complex behavior to the HAL I'm afraid I
need a lot more datastructures. (links between devices, and the type of
link (input, output, multiplex, etc))

The relation between multiple devices should reside in the "user" code I
think, although it might be possible if we create an afsm abstraction
where every afsm has a set of devices linked to. (Remember: afsms can
coexist on the same "level")

About the integration: I'm still not very happy by the way the hal is
linked to the physical pins at this moment. I need to figure out how to
control the pins via registers directly.

We could use the current way (using avrlib to drive the pins) for now,
and change the way we drive pins later. Problem is: the whole project is
then only usable on avr32 for the moment. I let this decision up to
you ;-) 

- Wouter

On Fri, 2005-12-02 at 21:07 +0100, Ger Apeldoorn wrote:
> Hi Wouter,
> 
> Can I nest drivers in the HAL?
> 
> I want to make a custom driver for my sonar-tower that can make the 
> tower go up, make a scan etc.
> 
> However, in order to do that, I need to control the servo's and the 
> sonar, and read multiple microswitches. I want to use the other drivers 
> in to read and use these items.
> 
> Is this possible?
> 
> When will the HAL be integrated in Botix? No hurry, yesterday is soon 
> enough... I'd like to start writing the drivers!! :)
> 
> See you later!
> 
> Gerrrrrrrrr
> 
> 
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