I built a PCB based on this schematic:
When testing my software on dsPICPRO 4 it does work properly, but when I put the MCU on my PCB I can't get it to work. LCD show nothing. Do pheraps I have to ground some dsPIC pins? I disabled MCLR and left unused pins floating.
Connections in the schematic:
J3 = CN26 on dsPICPRO4
J4 = CN27
J5 = CN28
J6 = CN29
J7 and J8 are for LCD connection.
Best regards,
Francesco Zuddas
