Enabling EXT_3V

[spetcavich]

Posted on March 18, 2012 at 20:30

I have been searching through all the technical documents and can't seem to find anywhere how to use the EXT_3V header pin 1 for 3v output to power another device.

#espn

[Tesla DeLorean]

Posted on March 18, 2012 at 21:33

It would help to specify which of ST's Discovery board's you're talking about. And what you're attempting too, or thinking about, powering.

Presumably you'd just wire it up, along with a ground, to the hardware you want to power. For the STM32L, it says it can provide up to 100 mA. Have you reviewed the documentation?

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/DM00027954.pdf