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fpgaSID (Stereo 6581/8580 Replacement) by andi6510

fpgaSID (Stereo 6581/8580 Replacement) by andi6510

I could not resist the temptation to try also this “we hope it will be the last one!” FPGA implementation of the SID (Sound Interface Device) MOS 6581 / 8580, i’m talking about the fpgaSID by andi6510.

Probably this is the best implementation using an FPGA of the sound chip of the Commodore 64. If we make a quick comparison with the implementation made by Gideon for the Ultimate-64, both are the best ever.

It remains however understood that the audiophiles and purist of the sound generated of a original SID will never accept any implementation of the SID via FPGA.

andi6510 also wrote a software for the Commodore 64 (ConfiGuru) to configure the various fpgaSID options and for upgrade the firmware.

fpgaSID (Stereo 6581/8580 Replacement) by andi6510

Below some information taken from the fpgaSID site.

Accurate replication of the original SID MOS6581 and MOS8580:

  • Exact reproduction of the digital sound generation part
  • Spice simulation of the analog filters
  • Advanced models for all 6581 non-linearities

Many extra features on top of the original SID:

  • FPGASID includes two fully functional SIDs for 6-voice stereo sound
  • Perfect audio quality – much better than the original SID!
  • Pseudo stereo mode mixes traditional tunes or game sounds to stereo
  • Digitize the analog input to 8-bit samples (in your own software)
  • Sample playback of 8-bit samples (in your own software)
  • Nice light organ effect visible when mounted in transparent case
  • Paddles readout even more accurate than the original SID

High compatibility:

  • Works in any C64/SX64 or C128
  • Works with any software written for standard single SID computers
  • Works with large existing software base for dual SID stereo tunes
  • Paddle and 1351 Mouse support
  • Analog input EXTIN fully supported

Easy configuration with the software tool ConfiGuru:

  • Individual configuration of every SID
  • Easy- and Expert configuration modes
  • Save up to two configuration sets permanently in flash memory
  • Easy update to new firmware directly on your C64
  • Flexible address allocation of the second SID
  • Diagnostic function to troubleshoot hardware problems

Easy installation:

  • Installation done in 20 minutes
  • No soldering required for all main features (except external configuration switch, when needed)
  • Much smaller than traditional stereo boards thus avoiding installation trouble



source: fpgasid.de

Categories: Hardware, News & Rumors, Today
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