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PaxInstruments / labwiz-board

A development board based on the STM32 series processors specifically targeting the STM32F103RxT series.
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VBUS_DETECT #7

Closed charlespax closed 8 years ago

charlespax commented 8 years ago

Add a VBUS_DETECT pin, if for nothing else, power-management (so we know when we can power-down the USB peripheral in the STM32). A voltage-divider (15K/22K split) from VBUS to a GPIO should do fine for that. See http://community.paxinstruments.com/t/pax-instruments-multilogger/167

charlespax commented 8 years ago

Connected VBUS to PB11, which is a 5V tolerant pin. No need for a voltage divider. screen shot 2016-05-20 at 02 50 42