Hi,
The rtl-sdr is really great ! Congratulation and thank you for your work ! This really democratises the SDR to anyone with so low prices.
I have an ezcap ez646 USB stick, based on rtl2832u but this one has a FC0012 tuner chip. I wondered if some of you had information or clues about this tuner as you have developped the driver for the FC0013. Then I could attempt to adapt the code for this stick.
Regards
Mathias Coinchon opendigitalradio.org
Hi,
On 19.03.2012 13:43, Mathias Coinchon wrote:
I have an ezcap ez646 USB stick, based on rtl2832u but this one has a FC0012 tuner chip. I wondered if some of you had information or clues about this tuner as you have developped the driver for the FC0013.
The FC0013 driver was taken from the Linux kernel driver that Realtek released, so can be the FC0012 driver.
See: http://grok.osmocom.org/source/xref/x-misc-rtl2832u-kernel3/RTL2832-2.2.2_ke...
I don't have a stick with a FC0012 yet, but might get one in the next days. I will add support as soon as I get my hands on it.
It also needs some code to control the GPIOs of the RTL2832, since you have to toggle a pin of the FC0012 to switch between bands.
Regards, Steve
Thanks. I wonder what the difference between FC0013 and FC0012 is. I cannot find any datasheet on the web. The code between the 2 is very similar.
However, the FC0012 driver has no "Set_VhfTrack" function (but it covers VHF band 3) and I couldn't find yet where the switch between bands happens.
Otherwise, the EZCAP eztv646 stick is recognised with 0x0bda VID and 0x2838 PID (but has no e4000 tuner).
Regards,
Mathias
________________________________ De : Steve Markgraf steve@steve-m.de À : Mathias Coinchon coinchon@yahoo.com Cc : "osmocom-sdr@lists.osmocom.org" osmocom-sdr@lists.osmocom.org Envoyé le : Lundi 19 mars 2012 14h08 Objet : Re: FC0012 tuner
Hi,
On 19.03.2012 13:43, Mathias Coinchon wrote:
I have an ezcap ez646 USB stick, based on rtl2832u but this one has a FC0012 tuner chip. I wondered if some of you had information or clues about this tuner as you have developped the driver for the FC0013.
The FC0013 driver was taken from the Linux kernel driver that Realtek released, so can be the FC0012 driver.
See: http://grok.osmocom.org/source/xref/x-misc-rtl2832u-kernel3/RTL2832-2.2.2_ke...
I don't have a stick with a FC0012 yet, but might get one in the next days. I will add support as soon as I get my hands on it.
It also needs some code to control the GPIOs of the RTL2832, since you have to toggle a pin of the FC0012 to switch between bands.
Regards, Steve
Hello again,
I tried to make a driver for FC0012 based on kernel driver you gave me and comparing with your FC0013 implementation. It delivers noise and some carriers but doesn't seem to tune at all as the output is the same whatever the frequency. I assume that I have to set the register differently at opening and at the tuning but this is impossible to guess what to put in without the chip datasheet. I tried some tweaks but without success. The original driver itself looks a bit confusing with lots of mods in comments and I wonder if it has been set with values for DVB-T only as it is only what is supported in linux for these USB based on this chip at the moment.
I should maybe better buy a new ezcap key with an E4000 tuner or Noxon
Cheers
Mathias
________________________________ De : Steve Markgraf steve@steve-m.de À : Mathias Coinchon coinchon@yahoo.com Cc : "osmocom-sdr@lists.osmocom.org" osmocom-sdr@lists.osmocom.org Envoyé le : Lundi 19 mars 2012 14h08 Objet : Re: FC0012 tuner
Hi,
On 19.03.2012 13:43, Mathias Coinchon wrote:
I have an ezcap ez646 USB stick, based on rtl2832u but this one has a FC0012 tuner chip. I wondered if some of you had information or clues about this tuner as you have developped the driver for the FC0013.
The FC0013 driver was taken from the Linux kernel driver that Realtek released, so can be the FC0012 driver.
See: http://grok.osmocom.org/source/xref/x-misc-rtl2832u-kernel3/RTL2832-2.2.2_ke...
I don't have a stick with a FC0012 yet, but might get one in the next days. I will add support as soon as I get my hands on it.
It also needs some code to control the GPIOs of the RTL2832, since you have to toggle a pin of the FC0012 to switch between bands.
Regards, Steve
Hi,
I should maybe better buy a new ezcap key with an E4000 tuner or Noxon
I'd say stick with the E4000 ...
I have just got a FC0013 based one at a local shop and except for the frequency band it's really designed for, it doesn't seem to produce much. The E4000 is much more understood.
Cheers,
Sylvain
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Mathias Coinchon -
Steve Markgraf -
Sylvain Munaut