SID tester for MIDIbox SID?

[idiotcountry2]

Has anyone come up with a test routine to actually test a SID chip prior to being used in the MIDIbox SID? Would be nice to have (and probably already exists for the C64 but I wouldn't know where to look). As referenced on the HardSID page about their SID 'classes':

http://www.hardsid.com/modules.php?name=Content&pa=showpage&pid=11

Cheers,

tom

[moebius]

Hmm..

I'd say that's just their "salestalk" to justify 20 euros per SID. Don't know about any C64 testing software, but it really could exist. Calling C64 freaks!?

If you know, how SID should sound and it's still in the C64.. I'd say that game music is the best way to test it out :P

Bye, Moebius

[nILS]

I agree with Moebius. Whenever I get a new SID, I stuff it into one of my C64s and see if it'll do the job. If you do so, just make sure to take the a C64 with the same SID (6581/8580)

nILS

[smashtv]

If half of the SIDs they get their hands on are bad I would say they are sourcing production rejects.

They are sensitive devices, but no way half the ones they see are that trashed (unless they are buying from the UK ebay guy that was shipping them in non anti-stat bags..........)

Definitely sales language, otherwise they could not afford to sell them for 20 euro (considering the stated reject rate)

Best!

Smash

[TK.]

It's a piece of cake to realize such a SID test software with the C wrapper of MIOS, even if the SID is not directly connected to the core:

/////////////////////////////////////////////////////////////////////////////
// This function is called by MIOS when an button has been toggled
// pin_value is 1 when button released, and 0 when button pressed
/////////////////////////////////////////////////////////////////////////////
void DIN_NotifyToggle(unsigned char pin, unsigned char pin_value)
{
   // do nothing if button has been released (pin_value == 1)
   if( pin_value ) 
      return;

   // clear screen
   MIOS_LCD_Clear();

   // print header at upper line
   MIOS_LCD_CursorSet(0x00);
   MIOS_LCD_PrintCString("SID test finished.");

   // print SID class at lower line
   MIOS_LCD_CursorSet(0x40);
   switch( TestSID() ) // returns the quality class
   {
      case 2:
         MIOS_LCD_PrintCString("Quality: Class III :-/");
	 break;
      case 1:
         MIOS_LCD_PrintCString("Quality: Class II -> $ -> :-)");
	 break;
      case 0:
         MIOS_LCD_PrintCString("Quality: Class I -> $$$ -> :-D");
	 break;
      default:
         MIOS_LCD_PrintCString("Quality: Class IV :-( Press Button again!");
	 break;
   }
}


/////////////////////////////////////////////////////////////////////////////
// This function returns the quality class of the SID
// Just hold it near to Port J5 (the ADC inputs)
// Note: the inputs should NOT be connected to any voltage source and
// should especially not be grounded!!!
/////////////////////////////////////////////////////////////////////////////
char TestSID()
{
   return (MIOS_AIN_PinLSBGet(0) + 
           MIOS_AIN_PinLSBGet(1) + 
           MIOS_AIN_PinLSBGet(2) + 
           MIOS_AIN_PinLSBGet(3) + 
           MIOS_AIN_PinLSBGet(4) + 
           MIOS_AIN_PinLSBGet(5) + 
           MIOS_AIN_PinLSBGet(6) + 
           MIOS_AIN_PinLSBGet(7) ) & 0x03;
}
[/code]
Best Regards, Thorsten.

[moebius]

;D

[smashtv]

man that's funny!

Where is Captain Ecobox and the SID police when you need them?

;D