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how can i power up stm32f407vg discovery with external power souce?

Question asked by kong.chang on Dec 22, 2016
Latest reply on Mar 16, 2018 by virzi.joseph


i recently got stm32f407vg-disc1(discovery) and started a project.

i want to power up the board with external battery(5.1v, 2.4a) through micro-usb port(cn5) but it's not working at all.

it's working fine when i plug it with PC.

my english is not that good so i'm having a hard time understanding a datasheet.

any suggestions?

best regards,