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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep #qmx #firmware


 

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Hans,

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That fixed it.? Tnx!

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Paul, W9AC

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From: [email protected] <[email protected]> On Behalf Of Hans Summers
Sent: Friday, February 16, 2024 10:20 AM
To: [email protected]
Subject: Re: [QRPLabs] #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep

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Hi Roy, all

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Profound apologies are hereby offered. I would love to be able to tell you that I just fired the entire development time however, I already fired them last time.?

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Embarrassment... OUUUCCHHHH... turns out, of course, that the parameters all default to zero, but that can't be OK because then you get a division by zero when loading the parameters, but of course the, err, developer couldn't have tested that scenario which just so happens to be exactly what you would all experience. ALSO - if the sample length happens to be zero then it keeps incrementing until it wraps around the byte counter, well then that tries to write audio samples into a 256-block delay line when the maximum allocation was 9... OH how horrible I should throw myself on my sword.?

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Anyway I fixed it all now, you can download a fresh 1_00_017 and it will work OK now. You need, as I mentioned, to set up AGC parameters as it won't be sensible until you do, but, at least it won't hang up on you when stuff is zero immediately after updating firmware.?

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73 Hans G0UPL

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On Fri, Feb 16, 2024 at 6:11?PM Roy - KI0ER via <ki0er=[email protected]> wrote:

I was able, using the wire jumper, to roll back to 016 Firmware, and my darling QMX appears happy again. It's nice that one only needs to remove the 2 bottom screws on each side of the enclosure to pop the bottom cover off (no need to remove knobs and disassemble otherwise).



Roy - KI0ER

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