Here you go! The dangly bit at the right is the DC-DC converter, and the DuPont cabling is connecting two differential outputs back to inputs for testing.
I have no idea on C50 and C52, I cribbed them straight from “Figure 60. Buffer and...
Given that many of you request USB-C, I found this U-Tube video describing the USB-C standard and it's use and detection.
If you use USB-C at all it's an interesting watch/listen. It includes data on what is or is not a good USB-C cable.
I found an issue with inverted serial and half duplex mode where the current serial setup configures the pin for pull-up which causes an issue when you change the TX pin to RX by TXDIR bit in LPUART ctrl register. Using the sketch below and...
I'm pretty sure the USB descriptors are good, for bidirectional stereo in asynchronous mode. Async mode means the USB host is responsible for adjusting the data rate to match Teensy's sample rate. Descriptors are the easy part. Handling the...
The other USB audio design decision to be made is explicit versus implicit sample rate feedback. We're using explicit feedback, which seemed like a good trade-off when Teensy had only 12 Mbit/sec USB. With implicit feedback, you must always...
You might have noticed more spam has come through over the last several days. Turns out I broke one of our anti-spam measures while restoring the internal Wordpress stuff that powers the project articles on the main website. Didn't realize it...