thx for the keyword, problem is, I can't matrix any dout channel anymore or it has something attached that is not suitable to matrix.... :cry:
ports J10 and J6 doing nothing in my layout, is it possible to use them as additional DOUT ports???? If I kick some segment display behind a MAX7219, I can use the SPI interface with these 2 ports. Easier would be maybe using the design for the midi clock as used in the Midi Monitor. My question is or someone has done this before & is it possible at all?