spectasaurus

I have my Teensy 4 connected to a data acquisition system. For a variety of reasons, I'd like to power the Teensy with an external power source. But I also need to transfer data through USB. If I cut the trace on the bottom of the Teensy PCB...

Thanks Paul. I'll take a look at this.

When Teensy 4.0 and 4.1 first came out, it was possible to access the entire 512k of RAM2 space using the DMAMEM call. Sometime between then and now, an upgrade to Teensyduino reduced the amount of space allocatable to about 510k or so. I'm...