[linux-dvb] [Fwd: Re: Try to Make DVB-T part of Compro VideoMate T750 Work]

linux-dvb Rod 1 participant 1 message May 10, 2008 Media (V4L/DVB)

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Rod

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2008-05-10 00:38 UTC #0 lore raw

Quoted 66 lines · On 2008 May 9 Friday 07:31:15 you wrote:

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Quoted 11 lines · On 2008 May 8 Thursday 22:46:09 Rod wrote:
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Hi, is there anyone actually working on this?
I cannot program for the life of me (for now) si, I'd like some
assistance?
I can get the SAA to be seen on the I2C bus, and a scan doesn't
reveal the true addresses of the chips behind it (along with the previously seen reports of the addresses of the devices.
I have manually probed and have obtained the actual I2C
addressing
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of most of the chips (except for the XC device, BGA's are difficult,
and
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the PRO1A, well I havn't gone to the length of X-ray'ing it yet, but maybe I'll have to give that a go (X-ray to get the die information, then try and resolve its function from that info) or I'll just power
the
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device and see what it does.. wish i still had the "Pinpoint" system
at
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my disposal.
So, I'm looking for help, or a group to chat with to try and help
this little device along ;o)
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Quoted 3 lines
Hi, Rod:
I'm just a little owner of T750, and not a electrical circuit expert.
I
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just
can read some code of kernel drivers. I do definitly want to give you
a
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hand
and make this cards work over v4l, but what can I do for you? I live
in
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Taiwan, if it necessary and Compro wants to tell me, I can give Compro
a
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call
and ask some questions which may keep this branch forward.
2008/05/08
linleno
Hi Linleno
I have the I2C ports that each device sits on (except the XC device) that
i probed from the board, I have the interconnections between the SAA and the 6353 device, and I think (couldn't find/forgot) the QT1010 is connected to the 6353 Secondary I2C port for tuning control.
The Reset line on the '6353 is tied to a RC network, with an option to be
controlled from the SAA device, this link can be added at another time.
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I'd also like to be able to control the RTC on the board so I can restart
the computer at a certain time, the Linux drivers for controlling my mobo
don't work, and screw the BIOS ;o(

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HI, Rod:
So, you can determinate the demodulator on this card is CE6353 but not zl10353
as Newbigin proposed?
Lin

Hi Lin,

So, you mean as te connection as SAA -> CE6353 -> QT1010?

I'll pull the card again, desolder the can and try to see where those SDA/SCL tracks run, I have some fine test probes that I can use to probe those points, the company I work for sells the Ingin & ECT board test probes for testing of bare and loaded PCB's, so probing won't be a problem.

I also found that Eucalyptus oil is great for removing the paint on the tops of some IC chips ;o)

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Qn. Whats the differance between a Snake and a Onion?

Ans. No one cries when you chop up a Snake
  (SOLS - Snake Tales)

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