I build mbsid + swinsid today. im using pic18f452 with midibox_sid_v1_7303c setup_6581.hex firmware and SwinSIDX2.hex for atmega, but when I play some notes on my keyboard, i just hear some noises sound from my speaker. I build based on swinsid schematic combined with mbhp_sid_v3 schematic. any sugestion please…
Check your fuse bits configuration to enable external clock source - AVR have to run with 24MHz. SwinSID plays short 1KHz test tone during startup, when the frequency is lower then your clock frequency is wrong. Are you using TDA1543, not TDA1543A? (TDA1543A won’t work). If you still have problems, attach sound output recordings here.
sorry for late reply, im just back from holiday. Im using TDA1543, i buy it from futurlec.com. I dont able to re-program the fuse bit config. im using pony prog with stk200 simplified. It always show “device missing or invalid”. Please tell me how can I re-program it? are stk200 need external vcc? and what fuse bit should i tick? here I attached the recorded testone. and sorry for my english..
I’m using simplified STK200 with success but heard that it doesn’t work with some mainboards. STK200 doesn’t need any power source but you AVR should be running while programming.
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Finaly writing the fuse bit work using HP P3 pc ;D. But the output sound litle bit noisy. I think its my power suply problem. I’ll find new good power supply after my mb swindsid frontpanel finished…