Some questions about the radio berry

[Ryan Wesolowski]

Purchased my radioberry about 2 months ago.  I had it working fine on a pi4.  Worked really well connected from pi4 via LAN to another linux computer also.  But I got audio dropouts occasionally on the pi4 but not on the x86 linux computer connected to the pi4.  I wanted good operation running locally on a pi so I purchased a pi5.  Installed the pi 5 software for radioberry but there is an issue that I cannot resolve.  The noise floor jumps to 50 over S9 when loading pihpsdr and wipes everything out.  This a fresh install with PI5 software from the GitHub for radio berry.  Any ideas?  Did not have an issue with pi4.

Also I thought about purchasing a juice board.  Question is if I connect pi5 to the juice and connected the pi5 to the lan will the radioberry still show up on the network as it did when the radioberry was connected directly to the GPIO pins?

Thanks 

Ryan

KK6DZB

[Ed Marciniak]

I wouldn’t consider myself a final authority on this, but…

Until someone writes a state machine driven interface using the RP1, using a Pi5 for high speed GPIO is a really bad idea.

The Pi4 and below access the GPIO pins directly over the processor connected AXI bus. On the Pi5, GPIO access might have to wait for PCIe bus availability. For some that’s a non-issue. For others, using things like an an NVME interface or an external GPU via PCIe could result in maximum size PCIe transactions adding significant latency to the RP1 at some times and little or none at others.

I’d highly recommend the juice pack. I have one and the setup was pretty easy.

I also picked up a couple of Ethernet modules but haven’t gotten around to wiring one up and loading correct gateware to use it.

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From: radio...@googlegroups.com <radio...@googlegroups.com> on behalf of Ryan Wesolowski <cosmo...@gmail.com>
Sent: Monday, March 31, 2025 1:19:27 AM
To: Radioberry <radio...@googlegroups.com>
Subject: Some questions about the radio berry

 

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[pa3gsb]

Ryan,

The radioberry will work with rpi-5 ; 

https://github.com/pa3gsb/Radioberry-2.x/tree/master/SBC/rpi-5

but the combination of rpi-5 with rb is not working as good a with rpi-4 (so for now using the rb without juice the rpi-4 is the preferred combination).

If you have a juice board combined with a rpi -5 it will work.  See https://www.pa3gsb.nl/2021/07/22/radioberry-juice-part-2/ some schematics.

To make use of rpi-5 some new development have to be done ; see the forum about info.

73 Johan

PA3GSB

Op maandag 31 maart 2025 om 08:19:27 UTC+2 schreef cosmo...@gmail.com:

[Ryan Wesolowski]

Thanks Johan and Ed. 

 It is working fine with PI4 and brilliant when connected from the PI4 to another computer running linux and pihpsdr or deskhpsdr via another computer.  PI5 it doesnt work properly at all.  Its just all noise 50 over s9.  This is with a fresh install on PI 5 and the install script for PI5 from your github Johan.  I dont know if the firmware has been updated on the radio berry maybe that is causing the issue?  I am unsure how to check.  I see your working on making improvements to radio berry and PI5 Johan.  I may wait for that.

My biggest questions and concerns about using the juice board are.

If I connect juice to a PI5 via usb then connect that PI5 to my network will the radio berry be detected as it was when the radioberry was connected directly to the PI?  This a big deal for me.  I want to be able to run on the pi locally and from another computer via the network.

Ryan

KK6DZB

[Ryan Wesolowski]

And after tonight I cannot install anymore.  I get this error

You are using a linux version without linux header files; choose an other distro

[Ed Marciniak]

Being the juice eliminates the GPIO, a Pi5 should work fine.

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From: radio...@googlegroups.com <radio...@googlegroups.com> on behalf of Ryan Wesolowski <cosmo...@gmail.com>

Sent: Monday, March 31, 2025 11:16:52 PM
To: Radioberry <radio...@googlegroups.com>
Subject: Re: Some questions about the radio berry

 

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