Thank you very much Thorsten,
I have two other questions:
1- MBHP_CORE_LPC17 has 7-pin connection (Vs, Vd, SI, SO, SC, RC1 and RC2) in J8/9 port, and MBHP_DIO_MATRIX has 6-pin connection (Vs, Vd, SI, SO, SC and RC) in J1 Port, is necessary to connect pin P3.26 (RC2) from LPC1769?
2- is possible to protect the CORE at the port J5A0 when connecting the sustain pedal through 74HCT541 IC or an optocoupler like MIDI input ?
thanks again. regards
Marcelo