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STM32 Internally Pulled up pin

Question asked by Anurag Mahajan on Apr 30, 2018
Latest reply on May 1, 2018 by waclawek.jan

I am trying to digitally turn LED HIGH and LOW using STM32F103C8T6  maple mini board using pins A11, A12, B4 and A15 pin, But it seems that those pins are internally pulled up as soon as I power it on stm32 boards this pins get +3.3, 1.9 and 0.5 volt, If this pins are internally pulled up, How do I make them work? and If i try to digitally turn those pins HIGH and LOW using programming, this does not bring any effect on LED's. I would like to know, How do i control LED's using these pins,



Anurag Mahajan