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   comp.sys.atari.st      Discussion about 16 bit Atari micros      15,439 messages   

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   Message 14,349 of 15,439   
   Rodolphe Czuba to All   
   CT+CTPCI news   
   14 Apr 10 17:13:02   
   
   From: rodxxxxx.xxuba@free.fr   
      
   Hello,   
      
   We have good news :   
      
   - no more freezing on DMA PLX accesses with a modification of the ABE   
   arbiter (please update).   
   - A small correction on CTPCI for TA (transfer Acknowledge = end of cycle   
   060) : should remove some 'address fault' on boot you may experienced and   
   may increase staibility at high speed (above 90 MHz).   
      
   With these 2 updates, I ran at 95 MHz during several hours with PLX DMA ON   
   without any crash.   
   - Anyplayer runs in 256 & 65K with MP3 & MOV playing. No Falcon SDMA , 060 &   
   PLX DMA conflict ! Everybody is running together...   
   - The desktop icons are here and correct in 65K mode with DMA PLX transfers   
   (this confirm that PLX DMA is OK) ! No correct icons in 256 colors modes...I   
   think it is a software problem here.   
   - Kronos 1.91 runs with DMA ON and all tests are ok. Sure there are some   
   redraw problems like in the desktop... and it is crashing in 65K at start of   
   OPEN GL test (no problem without DMA).   
     Note in 256 colors modes with OPEN GL test we get a result of 14365 with   
   100% 060 use and 14563 with DMA PLX use. So, we can say here that the DMA is   
   replacing the 060 with good performances. The DMA is actually Single   
   transfers (1 long at each transfer) and I have to finish the BURST mode (4   
   longs per transfer only in DMA read mode from SDRAM).   
      
   Now we can use DMA and continue to resolve the software problems...   
   DMA are necessary for USB PCI boards by example...   
      
   Like never before, Didier & Patrice need help from other developers...   
   They may have some specific work & investigation to distribute if you want   
   to help !   
   The work to be done stays colossal and they cannot success alone (sure they   
   will but how long time will it take ??).   
   Join us to debug CT+CTPCI.   
   Please contact Didier or Patrice M.   
      
   Some of you are developers & have not order CTPCI and I hope they will join   
   us.   
      
   Thanks   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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