
3
Chapter 3. Power Supply
3.1. Requirements
This MCU board operates from a 5V DC power supply (supplied).
A diode provides reverse polarity protection only if a current limiting power supply is used.
All MCU boards have an optional centre positive supply connector using a 2.1mm barrel power jack.
Warning
The MCU board is neither under nor over voltage protected. Use a centre positive supply for this board.
3.2. Power–up Behaviour
When the RSK is purchased the MCU board has the ‘Release’ or stand alone code from the example tutorial code pre-programmed into the
Renesas microcontroller. On powering up the board the user LEDs will start to flash. Pressing any switch will cause the LEDs to flash at a
rate controlled by the potentiometer.
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