Console driver that needs extra TIMER

Joel Sherrill joel.sherrill at oarcorp.com
Thu Aug 14 14:15:56 UTC 2014


On 8/14/2014 9:11 AM, Kolja Waschk wrote:
> Hi,
>
> I'm developing a DMA-based UART driver for Blackfin. It requires an 
> extra timer to trigger data processing after a transmission ended. This 
> increases the amount of timers required by every application that uses 
> it for the console.
Don't you get an end of DMA TX interrupt?
> E.g. most of the tests won't even start without modifications. So 
> effectively I have to fall back to a polling driver for console if I 
> want to run the tests unmodified, or is there any mechanism to generally 
> increment the amount of timers for all tests?
I don't think so. There are some BSP hooks for various features and
default number
of termios ports. But nothing specific to an object.

I suppose one could be added but for orthogonality, it would make me wonder
why we wouldn't also let you add a BSP factor on every Classic API object.
Just thinking out load.
> Thanks,
> Kolja
>
>
>
>
>
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Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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