smokestacksproductions Posted January 10, 2013 Report Share Posted January 10, 2013 Hello, I am confused by the connection for BLM on Smash's 4xIIC midi module. Since STM32 does not have midi I/O 4, it can only be connected to Midi I/O 3, - this is clear from the interconnect diagrams, however, I am using LPC17, so should I connect to Midi I/O 3 (J5b) or Midi I/O 4 (J4b) .... also, on the IICx4 board, I see Mi1/Mo1 and Mi2/Mo2, which side should I connect here? Thanks! Quote Link to comment Share on other sites More sharing options...
TK. Posted January 10, 2013 Report Share Posted January 10, 2013 Hi, however, I am using LPC17, so should I connect to Midi I/O 3 (J5b) or Midi I/O 4 (J4b) .... it doesn't matter, because the BLM port can be selected in the MIDI configuration menu. See also http://www.ucapps.de/midibox_seq/cs4/midi4.gif Note that on the MBHP_CORE_LPC17, J5B.A7 is MO3, and J5V.A6 is MI3 (swapped compared to MBHP_CORE_STM32) also, on the IICx4 board, I see Mi1/Mo1 and Mi2/Mo2, which side should I connect here? MI1/MO1 is the preferred choice, because the MIDI IN connection will go through the optocoupler. MI2/MO2 could be used for a TTL level connection (without optocoupler) Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
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