12KHz issue (cause: byte shifting in I2S)

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Diskussions- und Newsboard des DARC-Ortsverbandes I40 | allgemeine Kategorie | mcHF Projekt Deutsch / English (here you can discuss everything related to mcHF) (Moderators: DF8OE, DL1PQ) | Topic: 12KHz issue (cause: byte shifting in I2S)

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Topic: 12KHz issue (cause: byte shifting in I2S) (Read 3269 times)

DF8OE
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Stellvertr. OVV I40, Jugend / Nachwuchsreferent

Re:12KHz issue (cause: byte shifting in I2S)
« Reply #15 on: 06. September 2018, 10:29:33 »

You can start using your standard configuration. TPSis 100% config independent.

Moving peaks == instable LO or instable input signal...

In the vey past we fought against this issue for some months (until Frank implemented an autoident which restarts codec as long as TPS is present). I do not have any idea why this does no longer work. I have not seen TPS since over a year.

For testing it is ok to flash firmware and switch on and off 10 times. It would be great if there is a version that mostly shows TPS and a version which mostly does not show. Then we can test if OVI40 and mcHF are showing identical behaviour.

I can 100% state it is hardware (which hardware?) dependent, too. You can reproduce TPS - I cannot. We are using same testing conditions except hardware.

vy 73
Andreas

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Re:12KHz issue (cause: byte shifting in I2S)
« Reply #16 on: 06. September 2018, 12:30:50 »

Hello Andreas,

Quote from: DF8OE on 06. September 2018, 10:29:33

Moving peaks == instable LO or instable input signal...

Yes, my fault, I tested just after powering up. My ovi40 is on for a few hours now, and it's stable as my LO.

OK for the test, I'll try to pinpoint something.

73's

François

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