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| Who | What | When | |
|---|---|---|---|
| chibill | mkrufky 1745:2100 A ViXS Systems TV Tuner Card. (Made by ASUS) | [01:21] | |
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| *** | nst has quit IRC (Ping timeout: 264 seconds) | [07:50] | |
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| mkrufky | what chips are on this board, chibill?
oh nevermind: ViXS, i dont think that's supported at all it's more cost effective to simply purchase a supported card as opposed to hoping / waiting / trying yourself / attempting to fund development of such a device
| [11:07] | |
| chibill | I had this card laying around and figured hm someone has to have drives for such an old card. Guess I was wrong. And actually that's not the same board but sort of.
I was hoping there was some sort of driver that I could work off of for trying to use it as an SDR. XD | [11:19] | |
| mkrufky | The issue with this board is that the PCI bridge silicon is not supported
the cool parts that are fun to write drivers for - those are already supported the only thing remains for that board is the number one most difficult part to bring up, and nobody had such a drive to work on it because at this point, the diminishing returns for bring such a board up have become zero there is no info about that chip publicly available somebody would have to put blood sweat and tears into reverse engineering the PCI bridge chip to have any chance of doing so ... i know two developers that are really good at that kind of thing, but they're not motivated to support such old hardware im sorry | [11:25] | |
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| mchehab | is SAA7136E that different than saa7135?
if not, someone with the datasheet could add support to the existing drivers | [13:41] | |
| I guess this is a variant of saa7160... a very different chip than the ones supported by saa713x driver | [13:48] | ||
| chibill | So I should just give up with that card? (I have two SDRs (rtl SDR and LimeSDR Mini) so yep | [13:59] | |
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| Hm | [20:25] | ||
| mchehab | chibill: it is unlikely that people would write a new driver for it... if this is indeed a saa7160, I guess you might find some driver floating around
probably not at good shape (i remember I saw something in the past) so, you'll have to spend some effort to make it work if you know how to program and want a pet project, then you could try to make it work but, if otherwise all you want is to watch TV, better to buy an already supported device | [20:30] | |
| chibill | Well considering I was just going to look at the drvier for how it talks to the actual tuner and front end. (Wanted to try and make a junky SDR with it for fun.)
Problally won't really do much more. | [20:32] | |
| mchehab | probably that's not the best board for SDR
if all you want is to receive, a device with rtl2832 works better | [20:33] | |
| chibill | I have one of those and an LimeSDR Mini.
Like I said want to try my hand at writing a driver and stuff for fun. | [20:34] | |
| mchehab | ah
the thing is that I'm not sure how flexible is NXP TV bridges for SDR the PCI bridge should be able to send I/Q data through userspace | [20:34] | |
| chibill | Well considering quite a few cards are software demod. (Like supposedly the one I have was but from reading your wiki it seems that it has the demod chip on board.) | [20:36] | |
| mchehab | yes, this one is not a software demod
(well, it might be for the hardware manufacturer - we never know :-) ) you'll likely have more luck with a board with conexant chipsets (bttv, cx88, ...) on several of those devices, there is a RISC inside, responsible for doing DMA transfers and the datasheet are publicly available | [20:37] | |
| chibill | I wish there was like a general SDR channel on Freenode xD | [20:39] | |
| mchehab | you could, in thesis, write some RISC software to get the A/D samples directly and send to the driver
there used to have something like that for cx88 back in the old days I remember I tried to apply the hacks to make a SDR cx88 driver, but the hacks didn't work... and I ended by being sidetracked to something else | [20:39] | |
| chibill | Many times I have thought about desinging my own SDR but it just seems pretty complicated.
Sort of getting off topic for this channel tho. :( | [20:41] | |
| mchehab | np | [20:41] | |
| chibill | But thanks. | [20:41] | |
| mchehab | anytime
I guess I saw some SDR open-hardware projects somewhere hmm... LimeSDR seems to be open hardware | [20:42] | |
| chibill | I have too. Most seem to like $100+ for a few single parts. Yea. | [20:43] | |
| mchehab | you could take a look on one such projects and try to do your own pet project | [20:43] | |
| chibill | I have some (Well it shipped yesterday but yea)
one* LimeSDR Mini. | [20:43] | |
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