[linux-dvb] Re: Twinhan MCU workload ?

Manu Abraham manu at kromtek.com
Wed Jun 22 21:10:57 CEST 2005


Dominique Dumont wrote:
> Manu Abraham <manu at kromtek.com> writes:
> 
>>* The MCU uses one H/W based i2c communication with the frontend and
>>F/W driven i2c at MCU level which interfaces to the Fusion 878..
>>
>>When we use such a device in conjunction with a CI module, the MCU
>>spends most of it's time when communicating to the CI module, So the
>>probability of i2c error happening here is much higher..
> 
> And what is the MCU doing besides polling the CI module something like
> 10 times per second ?

Getting FE_INFO, if signal fails, tries to retune ..Besides it simply 
doesn't poll  .. There are quite some things that the firmware does ..

Also it has a TS parser in firmware, newer cards have Power management 
etc etc ..


Manu








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