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shaduz

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Posts posted by shaduz

  1. no sound from sid

    in MIDIbox SID

    Posted

    Everything works fine now, i checked the sid board with the interconnection_test and noticed that both the 74HC595 where dead.

    Now it's time to build the control surface!  ;D

    a couple of questions:

    1- Is this PLED display ( http://www.elettroshop.it/files/prodotti/download/deltaopto/PDC1602M03.pdf  ) supposed to work with the core_module or it does need more driving strength?

    It's HD44780 compatible and needs a supply current of 0.35(typical) to 0.60(max) mA. Do I need to make any improvement on the psu (I'm using the c64 optimised psu) in order to drive 4 core + 4 sid + full cs + PLED display?

    2 - Is it possible to have mixed sid types in the chain (eg. 2x8580 + 2x6501) without modyfing the psu or the best noise-proof solution is to have a psu for each sid type?

    thanks!

    Shaduz

  2. no sound from sid

    in MIDIbox SID

    Posted

    I made the optimised psu and now everything seems ok but i have no sounds from the sid... when i use JSyinthLib i hear clicks when turning the pots or sending a "Play patch", but no sounds. Anyone has any ideas? What checks can i do?  :-\

    I'm using a core v2 and a 8580 sid.

  5. Sid output: only noise

    in MIDIbox SID

    Posted

    I just finished the SID and CORE v2 modules. The core is working and i succesfully uploaded the os and the application, but the sid outputs only  high volume noise. The voltages are ok, but i don't know if i connected the psu in the right way:

    the c64 psu has a 5v DC output and a 9V AC output, i hooked up the 5v dc into the core (without the 7805 regulator) and the 9V AC into the sid module. Do i miss any connection? should i also connect the 5vdc to the sid module?

    I'm using a 8580 sid.

    hope someone can help...

    Shaduz

  9. Program Change (UP/DOWN)

    in Design Concepts

    Posted

    Hi all,

    anyone knows if it's possible to use 2 of the midiboxPlus buttons as "Program Change UP" and "Program Change DOWN"? I can assign a known program number to a button, but it would be more useful to increase/decrease the current patch number with only 2 buttons... hope some1 can help  ;D

    Greetings

    [shaduz]

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