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** ChibiOS/RT port for ARM-Cortex-M4 Freedom Board KL25Z. **
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** TARGET **
The demo runs on an Freescale Freedom KL25Z board.
** The Demo **
Generates an interrupt from an external button on PTA1. Assumes a button
is connected between PTA1 and ground. Uses the internal pullup on PTA1.
When the button is pressed the blue led will toggle.
** Build Procedure **
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