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Topic: Due loses USB Host power (Read 535 times) previous topic - next topic

smoking_transformer

When Due is powered with 12V or 9V wall-warts (both are more than 1A), USB Host voltage drops from 5V to 0 in about 2 seconds after powering on, which I saw after sticking a multimeter in there. I 'm using the USBHost library with a corded USB mouse. Everything else on the Due seems to be operating normally since it continues to display stuff on a monitor via VGA.

The mouse is working when Due is powered via the USB Programming port.
Also, the Due is a clone.

ard_newbie


Try to keep Native USB OTG ON by writing in loop():

UOTGHS->UOTGHS_CTRL |= UOTGHS_CTRL_VBUSPO; // Set UOTGVBOF

See DUE schematic

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