Search results

  1. R

    Teensy 3.1: number of PGAs is actually 2?

    As far as I can tell, there are two independent PGAs on the Teensy 3.1 chip; if this is true and there are no chip errata in the way, might want to update the technical-specs table here: http://www.pjrc.com/teensy/teensy31.html This is relevant for me because I'd like to use both ADCs in...
  2. R

    Bug in usb_dev.c

    There is a fencepost error in usb_dev.c related to NUM_ENDPOINTS. This bit me because I'm setting NUM_ENDPOINTS to 1, and I was getting STALL errors when trying to talk to endpoint 1; this was because usb_dev.c was never setting up the endpoint. After applying the patch, bulk transfers to...
  3. R

    bricked teensy3?

    I was able to recover. Holding down the pushbutton before plugging in the micro-USB cable did the trick. I guess this prevented any ARM code from executing; probably my code was disabling ezport or something like that.
  4. R

    bricked teensy3?

    Hello, I seem to have bricked my teensy3 board. I'm trying to program it in a more-or-less bare-metal mode, without arduino, and similar to other small microcontroller platforms such as MSP430. So I copied the toolchain, linker script, and setup files from the arduino distribution and set...
Back
Top