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GPIO pin not working of DM648 EVM

pravin pawar
Prodigy 40 points

Hi,

I want to use GPIO pin of DM648 for triggering external hardware. I connected external buzzer of 3.3 v, but it is not buzzing when I make GPIO line high. Please help. Also I want to know how much current is sourced from GPIO pin of DM648.

Thanks,

Pravin