Teensy 3.X Project Template with USB EHCI debug support

Thanks

Many thanks to Austin Morton for the great Teensy 3.X project template.

Purpose

An easy starting point for a Teensy 3.X project for dbgp devices. The Teensy shows up as debug device and the kernel module usb_debug allows to use it as serial bridge.

Note: You need a USB high speed capable Teensy to use it on an EHCI debug port. It doesn't work with Teensy LC.

Setup

Install the Teensy udev rule: sudo cp tools/49-teensy.rules /etc/udev/rules.d/

Then unplug your Teensy and plug it back in.

Connect a TTL UART to Serial2 running at 115200.

Using

Put your code in src/main.cpp
Put any libraries you need in libraries
Set the TEENSY variable in Makefile according to your teensy version
Build your code make
Upload your code make upload

Make Targets

make alias for make hex
make build compiles everything and produces a .elf
make hex converts the elf to an intel hex file
make post_compile opens the launcher with the correct file
make upload uploads the hex file to a teensy board
make reboot reboots the teensy

Where everything came from

The teensy3 sub-folder is taken from The Teensy 3 Cores
The tools sub-folder is taken from Teensyduino
The src/main.cpp file is moved, unmodified from teensy3/main.cpp
The Makefile file is moved, modified from teensy3/Makefile
The 49-teensy.rules file is taken from PJRC's udev rules

Modifications to Makefile include

Add support for arduino libraries
Change tools directory
Calculate target name from current directory
Prettify rule output
Do not upload by default, only build
Changed default target to Teensy LC
Set default USB stack to EHCI_DEBUG

siro20 / teensy-template