Hi everyone: before starting the whole project of building a midiBox sid synth, Im trying to build a simplier synth by my own. Im using a PIC16F873 microcolntroller to interfase my Sid Chip with my PC via serial port. Using portB for data, portA for addres and portC for clock and cs/ rw signals, I run a max/MSP patch to control the sidChip/. Well... the hardware seems to work but there is no sound yet and I was wandering if its there any kind of "brute force" test to be sure if my sidChip is alive. I look around but I cant find anything. Any though will be great !. than you very much ! diex