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Date
Re: sBIT USB boot
Are you sure you can do I2S through some GPIO pins? Otherwise it would not work as Pi replacement for the sBitx. - Rafael
By Rafael Diniz · #108688 ·
Re: Radio S32LE samples don't go negative?
Hi Dave, There are some old CFLAGS. I made a fork and fixed the Makefile to have sane intel and arm parameters: https://github.com/Rhizomatica/csdr/
By Rafael Diniz · #108687 ·
Re: Issue #4 Raspberry Pi 4 HDMI audio modules conflict with loopbacks
Paul, Your perseverance on this topic is very sympathetic and I hope you can fulfill your original idea. This is how you can get from "PlughW: 1.0" and "Plughw: 2.1" to [Sbitxdigiout] and
By HA3HZ · #108686 ·
Re: Issue #4 Raspberry Pi 4 HDMI audio modules conflict with loopbacks
Actually had a bit of a google after I wrote the reply, this may be more help: Matrix:Module-aloop - AlsaProject (alsa-project.org) ( https://www.alsa-project.org/wiki/Matrix:Module-aloop ) snd-aloop
By Paul <g0kaohx@...> · #108685 ·
Re: Issue #4 Raspberry Pi 4 HDMI audio modules conflict with loopbacks
Hi Dave Might the update I did for the headset issue (/g/BITX20/message/108643) provide the solution for this too? If you are able to identify the HDMI interface and set its priority
By Paul <g0kaohx@...> · #108684 ·
Re: sBIT USB boot
Steve, The $279 computer was the one you linked to that had GPIO pins, from Tom's Hardware website: That board is the $279 one I was talking about, a bare board (no Case! Fan! Power!) with a Celeron
By Ken N2VIP · #108683 ·
Re: sBIT USB boot
250% is not quite accurate. My N100 came with 16GB ram, 256GB of SSD storage, built in power supply and a case. You need to add a case, a fan, a power supply, an sdcard or other storage etc to the
By Steve Barkes · #108682 ·
Re: sBIT USB boot
Dave, I'm sorry I appear to have upset you - in the context of this mail list, I asserted that it would require a significant effort to use a $100ish N100 system in a uBitx, and you agree with me, as
By Ken N2VIP · #108681 ·
Issue #4 Raspberry Pi 4 HDMI audio modules conflict with loopbacks
Referring to: https://github.com/afarhan/sbitx/issues/4 ( https://github.com/afarhan/sbitx/issues/4#top ) Since my other comments on other issues have gone unanswered, I will try to discuss this
By Dave, N1AI · #108680 ·
Re: Radio S32LE samples don't go negative?
*Aside #1:* I found it difficult to get that version of csdr to build on newer systems. Also as it says when you load the page, that version hasn't been maintained since 2020 I found
By Dave, N1AI · #108679 ·
Re: sBIT USB boot
You wrote " his goal was a $100ish desktop that required a TV for output that could be used in education for third-world students using phone chargers, cheap keyboards/mice, etc." -- how is that use
By Dave, N1AI · #108678 ·
Re: Radio S32LE samples don't go negative?
Thanks for all the answers. Does it makes sense to use a dc blocking filter to mic and radio rx paths? I'm playing with csdr [1] and it is pretty cool. Just to be sure - it makes no sense to add this
By Rafael Diniz · #108677 ·
Re: Radio S32LE samples don't go negative?
Hi Farhan, I'm discussing about the samples I'm reading and writing from/to the wm8731 through ALSA API, not to do with high level software processing.
By Rafael Diniz · #108676 ·
Re: sBIT USB boot
My point was they were designed for different use cases. <snip> RPi Foundation has been building selling *huge* numbers of boards for embedded applications to industrial customers. I haven't heard
By Ken N2VIP · #108675 ·
Re: Radio S32LE samples don't go negative?
I do, and should have pointed that out, so I thank you for your clarification. -- Regards, Dave, N1AI
By Dave, N1AI · #108674 ·
Re: sBIT USB boot
True. Ex
By Dave, N1AI · #108673 ·
Re: Radio S32LE samples don't go negative?
I¡¯m sure you know this but a spike in the frequency domain at 0 Hz is a DC constant offset in the time domain.
By Gordon Gibby KX4Z · #108672 ·
Re: Radio S32LE samples don't go negative?
You seem to be confirming Gordon's suggestion that could be a constant positive DC offset to the signal delivered to the Wolfson Codec's ADC which gets reflected in the digital values produced by the
By Dave, N1AI · #108671 ·
Re: sBitx Pi won¡¯t boot
Update. I fitted a Pi3 and it¡¯s booting but whilst I get noise. There is no RX of signals. Maybe I fried something else?
By d p · #108670 ·
sBitx Pi won¡¯t boot
Hi, I seem to have a problem with my new sBitx. I was transmitting a time to tune my antenna and it just stopped. It was still receiving when I stopped keying and I feared I might have popped the
By d p · #108669 ·