kd5rxt-mark

My T4/C5 stack just arrived today, so I thought I might play along. I downloaded the two ZIP files in P66 (thanks @mjs513 !!), but I get the following error when I try to build the Teensy side (am I missing a file that I should be getting from...

@davidus: Teensy is not really made to be fed 3.3VDC from an external supply, and particularly when external 5VDC is supplied as well. It's possible that the on-board 3.3VDC regulator is burning out. Here's a <link> with the detailed info on...

@davidus: from the picture in your original post, it appears that you are providing 3.3VDC from an external power source (the schematic seems to indicate that the 3.3VDC pin on the Teensy is not connected). Where is the 3.3VDC supply coming from...

@jim lee: Sorry, I don't have any personal experience with the Adafruit device. The CANbus interface that I used was ordered from Amazon (it was a SN65HVD230 breakout), however, it is no longer available. Based upon the fact that the Waveshare...

@jim lee: For CAN hardware connectivity with the T4.0, I've successfully used a SN65HVD230 breakout board connected to the following pins: PIN D22/A8 = CAN1 TX (to CTX on SN65HVD230 breakout board) PIN D23/A9 = CAN1 RX (to CRX on...

@mwomack: It may sound trivial, but you should try a different USB cable. It is a very commonly reported problem (not unique to linux) & very likely that you have a "charging only" cable (which has only the 5VDC & GROUND wires, so it is not...

@StanfordEE: P.S. I just noticed that the EE122B folder is currently empty . . . Mark J Culross KD5RXT

@StanfordEE" I'll be the first to say "Thanks !!". Speaking for myself, I can always use a good resource for either understanding "why something works", & (hopefully not as often) figuring out "why something is not working" !! Mark J Culross KD5RXT

@Quizerno: Here are a couple of questions that might help with troubleshooting: 1) what sketch do you have loaded on the T4.1 ?? 2) does the loaded sketch enable/activate the host port (power to the host port is disabled/deactivated by default...

Try <this UK specific link> or <this US specific link> Hope that helps . . . Mark J Culross KD5RXT

You might check which ground you're connected to...only one of the ground pins is actually used/connected on the Audio Adapter. Hope that helps... Mark J Culross KD5RXT

Yes, you are correct. Using the reverb as an example, on the standard library Audio Design Tool, leave a connection open (say, from the output of the next-to-last mixer, to the input of the following/final mixer/amp. Manually add the reverb...

@Davidelvig: I have a few suggestions for you to try, which might help to broaden the resulting sound that you are getting. These ideas stem from my experience building & tinkering with my TeensyMIDIPolySynth (<here's> a link to the description...

@maxdog: There are a couple of older threads, such as <this> one, which indicate putting a 100-220 ohm resistor in series with each of the SCLK & MOSI signals can help to reduce/eliminate ringing on those particular signals. You might try that &...

Just to make sure, the button should only be held until the LED blinks once, then released. Holding for 16 seconds may actually be too long, resulting in cancelling the factory reset process, rather than initiating the factory reset process...