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- 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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