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Pull-up/pull-down resistors
A pull-up resistor is required on SWDIO on the target board.ARM recommends 100 kOhms.
In case of doubt you should follow the recommendations given by the semiconductor manufacturer.
Target power supply
Pin 19 of the connector can be used to supply power to the target hardware.Supply voltage is 5V, max.current is 300mA The output current is monitored and protected against overload and short-circuit.
Power can be controlled via the J-Link commander. The following commands are available to control power:
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