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