[mythtv-users] Re: Homebrew PVR Multi-Circuit

[Tim Tait]

USB sounds better to me too. Serial ports are vanishing...

But USB is a logical bus, not a physical bus topology, so putting both 
on one physcal set of wires won't work, a hub is needed.

Though if you had an advanced multi-function USB chip it may support two 
devices internally. I don't know the PL2303 well enough to comment.

Tim

Gert van der Knokke wrote:

> Steven White wrote:
>
>> I've read over all of the replies here and have made some decisions.  
>> I'm going to try using the PL2303 for USB connectivity.  To make 
>> things easier, I'm going to keep the LCD and IR transceiver on 
>> separate connections and make them compatible with existing drivers.  
>> This means that I either use 2 USB connections or a USB and a serial 
>> connection.  Which way would work out best for you guys?
>>
> I think the best choice would be to go for an all USB system, it keeps 
> the system simple.
> With the RS232 you need an extra supply as there isn't enough power on 
> the serial port for LCD (backlight) IR receiver (transmitter) and a 
> microcontroller. (well maybe if you select some super low power uC :-) 
> USB has plenty of juice.
>
> BTW you don't need 2 physical USB connections as the USB system is a 
> bus system anyway.
>
> Gert
>
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