XU4 with Shifter

Help with the Hardkernel Odroid XU3 / XU4 hardware
VK4TUX
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Joined: Tue Dec 25, 2018 12:50 am

Re: XU4 with Shifter

Post by VK4TUX » Fri Jan 11, 2019 11:57 pm

Last edited by VK4TUX on Mon Jan 14, 2019 12:16 pm, edited 3 times in total.

MW0MWZ
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Re: XU4 with Shifter

Post by MW0MWZ » Sat Jan 12, 2019 12:43 am

Adrian,

It does appear to depends on the shield that you use, the integrated radio/modem boards (especially the ones that have no Boot0 or reset buttons on them are the ones we see issues with, those use Pin 38 to reset the cpu during the flash process and don't have a hardware method, holding the pin at 1.8v cases them to stay in reset and not boot.

Most Odroid users are using them to drive full MMDVM and not MMDVM_HS, so thats why it's taken so long for this to come up.

Nice work on the script, that looks good.

I'll retest the Odroid image again, did you write it to uSD card first, or direct to the eMMC ?
Andy

73 de MW0MWZ
http://pistar.uk

VK4TUX
Posts: 16
Joined: Tue Dec 25, 2018 12:50 am

Re: XU4 with Shifter

Post by VK4TUX » Sat Jan 12, 2019 12:52 am

I wrote it only to the uSD card.
Last edited by VK4TUX on Mon Jan 14, 2019 12:17 pm, edited 2 times in total.

MW0MWZ
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Re: XU4 with Shifter

Post by MW0MWZ » Sat Jan 12, 2019 12:59 am

Tested mine *only* with the shifter shield on it - going to triple check and test it both ways.

The way I have the image setup, at the moment it has to be written to an SD card first, and then use the pistar-sd2mmc tool to move it over.
I'm going to re-test it carefully and make sure I didn't break something on the last build.
Andy

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http://pistar.uk

VK4TUX
Posts: 16
Joined: Tue Dec 25, 2018 12:50 am

Re: XU4 with Shifter

Post by VK4TUX » Sat Jan 12, 2019 1:13 am

Ok, so you have a tool to move it from the uSD to a mounted eMMC ? I use eMMC on my own debian 8 desktop image,
but I look after a lot of local repeaters so use pistar on those. I successfully set one up yesterday to run dstarrepeater and mmdvmhost together,
as that's what it did on its previous XU4 desktop image. I added a separate dstar DL5DI dashboard in iframe, below the pistar mmdvmhost dashboard.
That has a dvrptrv1 >2 x tait TM series D-Star repeater and a commercial grade TB8100 Tait repeater for mmdvmhost connected. Ultimate setup, perfect BER. Have a dedicated dstar repeater opens up the mmdvmhost use for p25 mainly with some DMR. D-Star is demanding and best setup seperate.

On my XU4 image i run the cpu's 'ondemand' This resolves cooling issues and keeps control to 50 deg C completely doable with big loads, as you see i run the entire G4KLX suite on mine ;

example ;

[email protected]:~$ stats.sh
localuser:root being added to access control list
Setting cpu: 0
Setting cpu: 1
Setting cpu: 2
Setting cpu: 3
Setting cpu: 4
Setting cpu: 5
Setting cpu: 6
Setting cpu: 7
minimum CPU frequency - maximum CPU frequency - governor
CPU 0 200000 kHz ( 14 %) - 1400000 kHz (100 %) - ondemand
CPU 1 200000 kHz ( 14 %) - 1400000 kHz (100 %) - ondemand
CPU 2 200000 kHz ( 14 %) - 1400000 kHz (100 %) - ondemand
CPU 3 200000 kHz ( 14 %) - 1400000 kHz (100 %) - ondemand
CPU 4 200000 kHz ( 10 %) - 2000000 kHz (100 %) - ondemand
CPU 5 200000 kHz ( 10 %) - 2000000 kHz (100 %) - ondemand
CPU 6 200000 kHz ( 10 %) - 2000000 kHz (100 %) - ondemand
CPU 7 200000 kHz ( 10 %) - 2000000 kHz (100 %) - ondemand
Governor: ondemand
Min Freq: 200Mhz
Max Freq: 1400Mhz

11:22:30: 700Mhz, 55.00C
11:22:32: 700Mhz, 53.00C
11:22:34: 600Mhz, 52.00C
11:22:36: 800Mhz, 54.00C
^C
[email protected]:~$
Last edited by VK4TUX on Sat Jan 12, 2019 4:09 am, edited 2 times in total.

MW0MWZ
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Re: XU4 with Shifter

Post by MW0MWZ » Sat Jan 12, 2019 1:27 am

Thanks for that, Pi-Star was already using the ondemand scheduler, but I had forced the fan to stay running at a level that did make it quite annoying, one of the changes in the most recent image is to tame that quite a lot, its back to variable fan speed so save your ears from the whine.

Tait hardware - yes its good stuff, we do see some of it over here, but its not as easy to get hold of sadly.

I'll get some more testing done when I get up tomorrow, thanks for the feedback, appreciate it.
Andy

73 de MW0MWZ
http://pistar.uk

VK4TUX
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Joined: Tue Dec 25, 2018 12:50 am

Re: XU4 with Shifter

Post by VK4TUX » Sat Jan 12, 2019 4:15 am

I only used a uSD with the pistar XU4 image.
Last edited by VK4TUX on Mon Jan 14, 2019 12:15 pm, edited 1 time in total.

MW0MWZ
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Re: XU4 with Shifter

Post by MW0MWZ » Sat Jan 12, 2019 12:17 pm

Exactly because the device ID changes between the uSD and eMMC devices, the tool to move from uSD to eMMC takes care of that on the fly, its why if you push the image directly to eMMC it won't boot.
Andy

73 de MW0MWZ
http://pistar.uk

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