I have an STM32F2 (reference manual here) which is connected to a GPS receiverGPS receiver through 5 pins. One of these pins is a power supply pin for the GPS.
All pins on the micro-controller are GPIO pins that need to be configured. (E.g. configure as input, output, floating, open-drain, push-pull, etc.) The ARM reference manual does not discuss GPIO pins as power sources.
What GPIO configurations do I need to apply to a power supply pin?