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stm32f107vc 5v problem,

Question asked by mahmoud boroumand on Dec 24, 2017
Latest reply on Dec 24, 2017 by mahmoud boroumand

hello

I'm using stm32f107vc  and send data for ws2812 with 48 channel from port 3(E,B,D) and the pins are open drain and  pull up with 2.2k resistor to 5v.

it's doesn't have problem but after a while suddenly i got a problem.pin dont insincere voltage more than 3.2V (it was 4.8 V after this problem) .

can anybody help me how can i fix this problem?

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