Robert Brewer wrote:
Got it... I misunderstood... I agree it would be a great thing to be able to use the IR transmitting features of the card. I wonder if some of the i2c captures from Windows that are going on to improve the video could be helpful for that too.
-Rob
On 4/15/05, Greg Haase <[EMAIL PROTECTED]> wrote:
Yes, I can confirm that the remote works fine. A patch was submitted by Per Johnson some time ago and it was rolled into the CVS. However this is only for the IR Receiver. If you attempt to use any of the IR send commands within lirc, you get an error message stating that the hardware doesn't support it.
I could certainly go ot radio shack and get the parts and build an IR Blaster on a rainy saturday... but I'd prefer to at least attempt to get the one that came with the card working. Theoretically, it shouldn't be that difficult... unfortunately, I have no idea how to find the i2c address for the transmitter. I was hoping that the pins on the CX25840 chip would offer a clue.
Sheesh. I've just put my cheapi2c modified PVR150 back in it's real home (MythTV box) :(
What you need to do to get your very own:
Go here - http://warmcat.com/milksop/cheapi2c.html
You need another PC, capable of running Linux, with a parallel port.
In addition to the (simple) circuit described, you need to add a 800ohm resistor between pin 25 and pin 12 to bring the voltages on the '150 down to 3.3v again. The reason for this is the '150 uses 'low voltage' I2c - 3.3v. The parallel port "pulls up" to 5v. Therefore, none of the chips onboard the card get "low" pulses. Be
The connections for the i2c bus on my card are at the top right of the card -
TP1 ----> Pin 13 on the parallel port
TP2 ----> Pin 12 on the parallel port
Big grounding plane on the BACK of the card -> Pin 25 on the parallel port.
These are all straight wire connections - Keep the length short - I used 20cm, which is probably around the upper limit. Use twisted pair if possible - pair 1 ground and 1 signal. I used the pairs from cat5 cable I had lying about.
Get lmilk - http://warmcat.com/milksop/milk.html
Compile lmilk on your 'capture' PC.
lmilk -2
starts the capture - It appears to stop at this point - As it says on screen, press any key to end the capture. It then outputs everything that went over the I2C bus while it was capturing. You can do
lmilk -2 >capture.log
to capture the output.
You may need to use -o to specify the parallel port address - Mine was at 0x3bc.
Once you've done all this, you need to grab and install the IR blaster software for Windows as well as all the other windows software required from http://www.hauppauge.com/pages/support/support_pvr150.html, and try playing with the blaster. Then post the logs (here or on the lirc mailing lists would probably be acceptable), noting what you did at what time.
Cheers,
Allan.
------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
