Teensy LC README
================
This is the README file for NuttX on the PJRC Teensy LC. The Teensy LC
is a DIP style breakout board for the MKL25Z64 and comes with a USB
based bootloader. Contributed by Michael Hope.
Development Environment
=======================
All testing was done with the GNU ARM Embedded 4.9 toolchain on
Linux. See https://developer.arm.com/open-source/gnu-toolchain/gnu-rm to download.
Once you've configured and built NuttX, flash the resulting
nuttx.hex file to the board using the Teensy Loader Application.
LEDs
====
The Teensy LC has a single LED. If CONFIG_ARCH_LEDS is defined, then
NuttX will update the LED as the board boots. The summary is:
* LED off: board booting
* LED on: initial stack created
* LED flashing: panic.
See `include/board.h` for details.
Serial Console
==============
The serial console is mapped to UART0 and appears on pins 0 (RX) and
1 (TX). Consider using a 3.3 V USB to serial adapter such as the
Sparkfun #9717 FTDI cable.
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