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What's the Difference Between X10, X11 and X12?

Bart Mikulski

Posts 100
20 Apr 2018 10:44


What's the difference between alternative core versions?

Thanks!


Martin Soerensen

Posts 231
20 Apr 2018 10:53


It is the internal clock multiplier:
7.14MHz x 10 = ~71 MHz
7.14MHz x 11 = ~79 MHz
7.14MHz x 12 = ~86 MHz


Bart Mikulski

Posts 100
20 Apr 2018 10:56


Martin Soerensen wrote:

It is the internal clock multiplier:
  7.14MHz x 10 = ~71 MHz
  7.14MHz x 11 = ~79 MHz
  7.14MHz x 12 = ~86 MHz

Thank you!

Is it going to be usual that only one of these is available in .exe format, and for  the other ones the USB Blaster is necessary to flash, or are they all going to be released as .exe finally?


Vojin Vidanovic

Posts 1689
20 Apr 2018 11:37


Bart Mikulski wrote:

  Is it going to be usual that only one of these is available in .exe format, and for  the other ones the USB Blaster is necessary to flash, or are they all going to be released as .exe finally?
 

 
  Seems like x10 ("safe") and x11 ("normal") will remain EXE and x12 will remain JIC only since it cannot work reliably on all v2 boards (until recapped). NTSC multiplier is used above, in PAL we would get a little less Mhz :-)
 
  Gunnar has presented x13 and even x15 core results, so hope 100Mhz+ frequencies will become standard with v4 and bigger FPGAs.
 
  e.g. 93Mhz GOLD2 Vampire Black Edition beating SAM440 667Mhz in memory performance (Performance section of this same website)
 
 
 


Bart Mikulski

Posts 100
20 Apr 2018 16:59


Vojin Vidanovic wrote:

Bart Mikulski wrote:

    Is it going to be usual that only one of these is available in .exe format, and for  the other ones the USB Blaster is necessary to flash, or are they all going to be released as .exe finally?
 

 
  Seems like x10 ("safe") and x11 ("normal") will remain EXE and x12 will remain JIC only since it cannot work reliably on all v2 boards (until recapped). NTSC multiplier is used above, in PAL we would get a little less Mhz :-)
 
  Gunnar has presented x13 and even x15 core results, so hope 100Mhz+ frequencies will become standard with v4 and bigger FPGAs.
 
  e.g. 93Mhz GOLD2 Vampire Black Edition beating SAM440 667Mhz in memory performance (Performance section of this same website)
 
 
 

Very interesting, thanks for the info!

Is there a guide on how to recap the card available?


Vojin Vidanovic

Posts 1689
20 Apr 2018 17:18


Bart Mikulski wrote:

  Very interesting, thanks for the info!
 
  Is there a guide on how to recap the card available?
 

 
  Its recommended to be done by Amiga shop tech nerds :-)
 
  Vampire FAQ, part of great Apollo Wiki
  EXTERNAL LINK 
      Q: I heard that since GOLD2.7, some FPGAs on Vampire 600 V2 could be too weak to run latest cores and might require a capacitor modification to make it stable. Can you explain ?

A: Since GOLD2.7, FPGA is heavily used and some early Vampire 600 V2 showed sign of electrical weakness. To fix it, just solder two 2.5mm 220µF 10V on C3 and C6 like in this video. We recommend help of a professional.

  Video
  EXTERNAL LINK


Matthew Burroughs

Posts 59
20 Apr 2018 19:49


What will the Standalone and 1200 versions be?


Vojin Vidanovic

Posts 1689
21 Apr 2018 08:53


Matthew Burroughs wrote:

What will the Standalone and 1200 versions be?

When - when its ready

What in terms of core - Team can say. Only public video of v4 Vampire is with X11 core. Will it raise the bar to x11 or x12 as standard, remains to be seen.

posts 8