Re: T41 SDT Code Issues
*** Also, you can put the drive & USB adapter in the fridge or freezer, and run it from there. - Jerry, KF6VB
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jerry-KF6VB
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#32883
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Re: T41 SDT Code Issues
My sister once had a computer that stopped working.? In her case, the OS was messed up, not the hard drive.? It was easy to recover the data from the hard drive using Linux.? However, it sounds
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John Lonigro
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#32882
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Re: CAT with Audio Working. Sort of. Almost.
OK, we're apparently running it at 192kHz. This is supported by the PCM5102 DAC device. Right now, I am looking through USB specs to figure out how to have the radio tell the PC that it's 192ksp. In
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jerry-KF6VB
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#32881
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Re: T41 SDT Code Issues
You might be able to do that with a Windows machine.? You can get a USB to SATA adapter (plus power supply if required). So you plug the damaged drive into the adapter,? USB into the working Windows
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Greg KF5N
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#32880
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Re: T41 SDT Code Issues
err...Linux system... Jack, W8TEE
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jjpurdum
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#32879
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Re: T41 SDT Code Issues
Thanks, Jim. So far, nothing has worked, but I still have a few to go. Al has a Linus system so I'll give your idea a shot, too. Thanks!! Jack, W8TEE
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jjpurdum
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#32878
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Re: T41 SDT Code Issues
Jack You might be able to recover some of your data using a different operating system to look at the drive. If you can create a Linux system which will boot off a USB stick it will look at any drives
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Jim/G4EQX
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#32877
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Re: CAT with Audio Working. Sort of. Almost.
There is an I2S bus running at 192ksps.? That drives the audio DAC (and also the ADC).? I'm referring to V11 software, V12 could be different, but probably not. Now in the audio data stream
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Greg KF5N
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#32876
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Re: CAT
It's an experimental platform, and it would make an interesting experiment: S/PDIF The I2S port may be used to receive and transmit S/PDIF. The S/PDIF is independent of both I2S/TDM ports and can be
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Greg KF5N
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#32875
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Re: CAT
I am not sure I would call the changes to the Audio library a Hack, but each to his own. At least it does not require any hardware changes and a SPDIF interface on the PC. Also it would mean the
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John Melton
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#32874
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CAT with Audio Working. Sort of. Almost.
So I have the two serial ports AND the audio device working. HOWEVER, the audio received by the PC is garbled. I think there is a sample rate mismatch. Are we running the Teensy audio library at a
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jerry-KF6VB
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#32873
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Re: RF Board MAR-3SM+ biasing current
I have not had a look at that yet. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois Owner ¨C Operator
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K9HZ
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#32872
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Re: CAT
Hi John, the Teensy already supports, without hacks, 192k audio via the SPDIF port. I built a prototype Main board with SPDIF and it works.? So that's an alternative that bypasses hackage of the
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Greg KF5N
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#32871
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Re: T41 SDT Code Issues
*** Not that much. Just a few bucks for an 8inch 10-conductor length. Digikey has 275 short ones for $1.48 apiece. 3M brand: 1700/10. But the system has to be designed for it. IDC connector with all
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jerry-KF6VB
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#32870
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Re: CAT
Just catching up with all the T41 emails over the last couple of months.? Take a look at: https://github.com/laiudm/laiudm-Teensy4-192k-USB-Audio This supports 2 serial ports over USB and 192K USB
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John Melton
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#32869
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Re: CAT
That's good, and it proves it is possible.? But that list of changes is really long!? In my opinion, support for that in the T41 will not go smoothly. Hopefully that capability can be added to
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Greg KF5N
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#32868
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RF Board MAR-3SM+ biasing current
Just a thought. The MAR-3SM+ Amp used for the CW transmission was biased at fairly close to the recommended current of 35mA. But now that R73 is added across C73 this has resulted in a reduced biasing
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John G0SDF
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#32867
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Re: T41 SDT Code Issues
My Ver 11 build had 6-7 inch display cable 3.3 volt too, never a glitch. Ver 12 had glitches and freeze ups with any code I used until I slipped some ferrite sleeves over display and front panel
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Tim
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#32866
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Re: T41 SDT Code Issues
You can always request past tax returns from the IRS. Although - maybe not now. I hear they're a little short-handed. - Jerry, KF6VB
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jerry-KF6VB
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#32865
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Re: CAT
Jerry, You might also want to look into the Wiki, particularly the section on USB Audio: https://github.com/K7MDL2/KEITHSDR/wiki/48KHz-USB-Audio And there is also the Keithsdr discussion group, where
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Joerg DB2OO
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#32864
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