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STM32F4 to LPC1769 midi wiring


Marxon
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...it is correct, if you want to connect MIDI-Port1 (LPC) to MIDI-Port1 (STM32F4), so you should be able to receive midi with your lpc from the stm32 and receive with your stm32 from the lpc...

 

mOnO

Edited by mono
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Since STM32F4 outputs the MIDI Tx signals in open drain mode, it makes sense to add a 1k pull-up resistor to this pin.

Not relevant for the Tx output of LPC17, since there it's configured in push-pull mode (due to a hardware imperfection)

 

Best Regards, Thorsten.

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