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Re: TinyLlama (Vortex86EX SBC)

Posted on 2024-04-16, 05:23

OK edit number two I was able to get everything working by adding that capacitor and checking the circuit on the USB I found I wasn’t getting 5 V due to one of the fuses, not being soldered all the way, which would explain why I needed to provide power to get the chip to flash also had the same …

Re: TinyLlama (Vortex86EX SBC)

Posted on 2024-04-07, 00:52

Hey guys, just finished building my TinyLlama v2 board but I’m having problems with the CH559. I tried following the instructions on the GitHub; unplug the HID_POWER jumper, disconnect power from the board, hold PRG until the device shows up in the WCH software but that never worked. I tried …

Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-08-21, 17:42

Sweet. Got it working! Thank you Eivind First I tried with removing R30 and R29 and things worked. But then I put the resistors back and added two NPN-Res (Q2 and R28, R29 from TL2 BOM) inverters back to back and things now work for both the Pi and DB50XR. Conclusion, DB50XR requires the -/+12 ( …

Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-08-21, 02:55

I got the +-12v working, but still no sound. Anyone got some experience with DB50XG and what is takes? Should I buffer up the midi signal from 3v3 to 5 ("TTL")? I doubt that makes any difference, however I need seeing other people put an optocoupler like 6N137 on that line. Any suggestions?

Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-08-04, 13:54

And I got the SM-750 with HDMI output to work. Yay! Now I want to inject the audio over the HDMI cable as well. Not sure if that is analog and digital. If digital, I need to figure out to do the conversion first. Cool that you got it working! I'm curious about resolutions and refresh rates though - …

Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-08-04, 13:44

I'm currently trying to get S/PDIF output working on the ITX-Llama, it's not that straight forward. I'm getting invaluable help from 640K!enough though, when we get it working I'll see if it's possible on the TinyLlama as well. [/quote] Amazing: I will work on it in parallel to see if I can get it …

Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-08-04, 00:26

So, I kept digging and I found that I can feed the S/PDIF to the SiI9022A on the Graphic card which is an HDMI transmitter. Then I looked into the CS4237B and noticed that it can provide the S/PDIF output. So, I did some soldering, but not results yet. I used /XOS1 and no luck. (still digging). I do …

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