macroman Posted November 1, 2007 Report Share Posted November 1, 2007 I've found couple of confusing points when connecting SID to CORE.I've got SID R3A and Core R4D, and their interconnection ports look like this- What is "MD" that doesn't exist on SID board?- Does the SID's "VC" stand for vdd like the same spot on the Core?Frankly speaking: which pin connects to which pin? And is there some other pins on the board that should be connected to Core<->SID board?Thanks in advance! Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted November 2, 2007 Report Share Posted November 2, 2007 I think you should try it this way when I look on the schematics:Core Sid Vd - Vc Clk - Clk MU - MU MD - Sc Vs - Vs Rc - Rc So - SoGreetings Quote Link to comment Share on other sites More sharing options...
TK. Posted November 2, 2007 Report Share Posted November 2, 2007 Yes, it should be a 1:1 connection.Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
macroman Posted November 3, 2007 Author Report Share Posted November 3, 2007 Thanks, I've now connected them like above, but get no sound out of 6581. Testtone application doesn't say anything, and interconnection test gives quite odd values, any ideas what might cause that? Here's couple examples:Pin: A0CS# 7,5VRES# 5,14VA0 5,14VA1 5,14VA2 5,14VA3 5,14VA4 5,14VD0 5,14VD1 5,14VD2 5,14VD3 5,14VD4 5,14VD5 5,14VD6 5,14VD7 5,14VPin: RES#CS# 7,5VRES# 5,14VA0 0VA1 5,14VA2 0VA3 0VA4 5,14VD0 0VD1 0VD2 0VD3 0VD4 0VD5 0VD6 0VD7 0VPin: D0CS# 7,5VRES# 5,14VA0 0VA1 0VA2 0VA3 5,14VA4 5,14VD0 0VD1 0VD2 0VD3 0VD4 0VD5 0VD6 0VD7 0VPin: D3CS# 7,5VRES# 5,14VA0 5,14VA1 5,14VA2 5,14VA3 5,14VA4 5,14VD0 5,14VD1 5,14VD2 5,14VD3 5,14VD4 5,14VD5 5,14VD6 5,14VD7 5,14V Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted November 3, 2007 Report Share Posted November 3, 2007 Have you meassured the voltage for the sid chip? You should have 12V for the 6581.Greetings Quote Link to comment Share on other sites More sharing options...
macroman Posted November 4, 2007 Author Report Share Posted November 4, 2007 Yes, those are the measured voltages on the SID chip. As it's said in the main.asm file "By default all unselected pins are 0V, except for the CS# pin which is 5V". On my circuit the CS# is too high, and all the pins are giving volts.I have 12V for the 6581, like it's instructed:IC1:Vdd(28) and IC1:Vss(14) - it must be 12V for the 6581 SIDIC1:Vcc(25) - IC1:Vss(14) = 5VIC2:Vdd(16) - IC2:Vss(8) = 5VIC3:Vdd(16) - IC3:Vss(8) = 5V Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted November 4, 2007 Report Share Posted November 4, 2007 Please upload the interconnection test again and try it again. Perhaps diconnect the midi out cable from the core modul after uploading the application, so we can see that there´s no midi loop which controlls the application.Good luck! ;) Quote Link to comment Share on other sites More sharing options...
macroman Posted November 4, 2007 Author Report Share Posted November 4, 2007 Haha, actually my Core module is not sending anything from midi (and that's another problem solving episode), so loop is not possible. I've uploaded the applications without smart mode.But I'll try what you've suggested.edit: Is it normal, that when you're running interconnection test, and scroll up-down the modulation wheel in MIOS studio, the LCD on core gets nuts and gives only black bars on the upper row? :-D I'm I having a crazy PIC or what. Quote Link to comment Share on other sites More sharing options...
TK. Posted November 4, 2007 Report Share Posted November 4, 2007 No, this isn't normal - the LCD output should be stable.Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
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