kd5rxt-mark

In my TeensyMIDIPolySynth (TMPS), I have implemented a 3-voice 12-poly synth. The audio portion runs on a T4.0 (overclocked at 816MHz with no additional cooling, hovering at or below about 50 degrees C & staying just under 95% loaded when all...

Full support for the RA8875 (optimized for use with the T4.x) comes as part the standard TeensyDuino installation, so no additional libraries are needed and/or need to be installed. Note that you'll need to edit the "RA8875UserSettings.h" file...

@macardoso: RAM is allocated in chunks (16K / 32K ?), so until you move enough functions from RAM to FLASH to free up an entire chunk, the primary thing that you will see will be a gradual change in the "padding" number as you move more and more...

Pictures of your setup would assist others in potentially identifying wiring problems, etc. Mark J Culross KD5RXT

For the Teensy itself, try <this> or <this>. And for the Audio Adapter, I've attached one that I think I created back in 2020 (in an older version of KiCAD). Hopefully, you can make use of it. Good luck !! Mark J Culross KD5RXT

I would suggest putting a 3-position pin header for the display power, and use a 2-position shorted jumper to select between the two power choices. The middle pin of the 3-position pin header would be connected to the power input to the display...

In my experience, for all inputs into a single mixer, the sum of these should never be allowed to exceed 1.0 (in your sketch above, your two xxxGain values can each theoretically reach 1.0, allowing their sum to theoretically reach 2.0). Try...

@charnjit: Have you tried the granular example (Files > Examples > Audio > Effects > Granular) ?? Does it work for you, as expected ?? Mark J Culross KD5RXT

@jerryk: I think this was already answered in your <other thread>. On all Teensy 4 varieties (T4.0, T4.1, T4MM), the JTAG interface of the IMXRT1062 is connected to the PJRC bootloader chip, so no external JTAG SWD is possible for any T4x...

Translation (by translate.google.com): Good evening, KurtE. Thank you very much. I was a bit unsure of how to proceed, but I figured it out. I increased the number of cells from 4 to 7 and took the margins into account to center everything...

Translation (using translate.google.com): Hello, I'm new here! I've been using Arduino—specifically with the Teensy add-on for the Teensy 2.0—for many years. With my current sketch, compilation was working fine about three weeks ago. Now...

Just stabbing in the dark here: did you hard-wire the display's CS so that the display itself is disabled, to make sure that it isn't interfering with any attempts to initialize the SD socket ?? What actual pins do you have connected between the...

I don't know about any other ESP32 family devices and/or dev kits, but my ESP32-S3 dev kit board specifically has a CP2102 USB-to-UART bridge IC on it. This device shows up as VID/PID 303a/1001. Don't know if this helps you with your testing in...

@Rolfdegen: I don't have any displays that use the ST7735_t3 library, but I thought I'd take an independent look. Have you downloaded & installed the latest version (after the update mentioned in post #45) ?? Are you sure that you don't have...

May be time to sacrifice an old toaster oven, or to find a hot plate somewhere . . . LOL Mark J Culross KD5RXT

@lolachampcar: I encountered (& reported) a very similar "an error is reported, but the HEX files are generated" behavior, as discussed in <this> thread. Maybe what's described there can provide you some relief . . . Mark J Culross KD5RXT

@jrl_synchro: Go back & reread <post #6> & <post #7>, which both clearly indicate that installing only the IDE is insufficient. It certainly seems like you have not completely followed the instructions given by the webpage that you quoted, nor...