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The lovely little PSRAM chips that PJRC sells support QSPI and SPI. From staring at high-res photos of the Teensy 4.1 like they're wired up with QSPI on the 4.1, but on the audio board only the SPI pins are connected. And the pinout diagrams for the 4.0 and 4.1 only list regular SPI pins as...

I've been working on a pitch shifting audio object for one of my projects. I have it using about 66% of the CPU on Teensy 4 with pretty high quality. I was thinking that it might be useful to others. What's the best way to publish it? Just a GitHub repo? Can I publish it to the normal Arduino...

Nah, I didn't need to use any other pins so I just left some unused.

Aha! I can reprogram it from the loader. I thought it was dead to the world, but I can push the blinky program to it. Thanks for the suggestion. I'm running the LEDs and the teensy off a car battery. I'm running the teensy off a usb-car-charger hacked into the 12v supply in the worst way :) My...

For the second time a teensy 3 now refuses to show up on USB. When I plug it into my Linux box I get: Aug 23 18:47:02 tp kernel: [52030.025231] usb 3-1: new full-speed USB device number 58 using xhci_hcd Aug 23 18:47:02 tp kernel: [52030.025437] usb 3-1: Device not responding to set address. Aug...

Yeah - I definitely want to use the DMA approach. Thanks! Ian

Hi friends (mostly hi Paul), I'm using OctoWS2811 to drive a single (though perhaps I'll want two) strip of WS2811s controlling LEDs. Is there a way to modify the library to only try to control 1 or 2 strips instead of all 8? I read through the source and it didn't seem obvious. The pins...

Hi, I've got a Teensy 3 and some WS2811 based strips. I'm having trouble getting them to reliably update. Is there a good way to start debugging the problem? Ian