Ryde problems

Discussions about the new Ryde "Set-top Box" Style Digital ATV Receiver
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g8vpg
Posts: 343
Joined: Fri Oct 11, 2013 9:35 am

Ryde problems

Post by g8vpg » Tue Sep 15, 2020 1:15 pm

I am testing a symbol rate scanning Ryde receiver for GB3ZZ and am having great trouble getting it to operate in a stable manner. The problem is that after a period of correct operation, it comes up with "Longmynd not loaded" and then requires a reboot.
The Pi is operating on 5.25V and the low voltage lightning symbol never appears. Today, I have completely rewritten the card with the latest software.
I have been told that this problem occurs if the Minitioune board is unpowered or not correctly connected by USB. Minitioune is correctly powered. I have plugged it into a PC with Minitioune software and it works well. I have tried two different USB cables which are quite short and they both work well.
G4BVK has had similar issues with "Longmynd not loaded" coming up at times. I am out of things to try now and hope that perhaps the experts can shed some light on this problem.
73 Shaun.

MW0RUD
Posts: 26
Joined: Fri Apr 24, 2020 3:09 pm

Re: Ryde problems

Post by MW0RUD » Tue Sep 15, 2020 6:37 pm

Hi Shaun,
This sounds like longmynd crashing for some reason or outputting an unexpected error. Can you reproduce it reliably? as it should output some debugging information when it crashes if you run it directly.

To run it directly shutdown the app from the power menu then run the following from the ssh console.

Code: Select all

cd /home/pi/ryde
python3 -m rydeplayer /home/pi/ryde/config.yaml
Tim

g8vpg
Posts: 343
Joined: Fri Oct 11, 2013 9:35 am

Re: Ryde problems

Post by g8vpg » Wed Sep 16, 2020 9:12 am

Thanks Tim,
I will try this and report back.
73 Shaun.

g8vpg
Posts: 343
Joined: Fri Oct 11, 2013 9:35 am

Re: Ryde problems

Post by g8vpg » Wed Sep 16, 2020 10:26 am

Tim,

I have emailed you direct because the text is too long for the forum.

73 Shaun.

MW0RUD
Posts: 26
Joined: Fri Apr 24, 2020 3:09 pm

Re: Ryde problems

Post by MW0RUD » Wed Sep 16, 2020 12:27 pm

Thanks Shaun,
The relevant bit turns out to be the bit at the end:

Code: Select all

Flow: No-data timeout, re-init config.
Flow: Config cycle: Frequency [0] = 1249000 KHz, Symbol Rate [2] = 2000 KSymbols/s
Flow: NIM init
Flow: STV0910 init
Flow: stv0910 init regs
      Status: STV0910 MID = 0x51, DID = 0x20
Flow: STV0910 set MCLK
Flow: Setup equlaizers 1
Flow: Setup carrier loop 1
Flow: Setup timing loop 1
Flow: Tuner init
Flow: Tuner cal lowpass
Flow: Tuner set freq
      Status: tuner:0, f_vco=0x261dd0, icp=0x1, f=0x22222, n=0xa6,
              rdiv=0x1, p=0x0, freq=1249000, cfhf=4118
ERROR: tuner wait on lock timed out
ERROR: Tuner set freq 1249000
ERROR: Failed to init Tuner 1249000, 0
ERROR: failed to init a device - is the NIM powered on?
Longmynd thinks its a hardware fault but it could also be a Longmynd bug.

How long does it take to fail usually? Is there anything unusual about your hardware setup? Just trying to work out if I can make my pi do it.
Tim

g8vpg
Posts: 343
Joined: Fri Oct 11, 2013 9:35 am

Re: Ryde problems

Post by g8vpg » Wed Sep 16, 2020 2:30 pm

Tim,
Today it was failing within five minutes. Ken G4BVK is having similar trouble. It is an absolutely standard mk.II Minitioune board fed from a good quality 12V bench power supply.
73 Shaun.

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