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DC1tv comments

    25-Mar-95 11:37:25
Sb: #3965-DC1tv comments
Fm: Jim Gast 73457,2746
To: Thomas H. Giebink 75573,3541
I wish I could answer your questions, but I have an even worse problem than you. I have a Gateway 2000 P5-90. It is a PCI bus computer which wants to help me out by optimizing a few too many things. Your miro DC1-TV card has 16K of RAM (Random Access Memory that is readable and writable). But my PCI bus pentium gets a little extra speed by "shadowing" all memory addresses from the ISA bus into fast RAM on the motherboard. This is OK for ROM on ISA cards, but in my case it prevents the processor from seeing any change in miro's RAM. Since you don't have that problem, you are safely beyond the advice to eXclude this memory in EMM386.EXE. You are also past the point where you have to worry about "preventing plug and play cards from grabbing these memory addresses". If those were your problems, I don't think the symptom would have been mere slowness. I'm not that far yet. EVERYTHING I try gets "miroVIDEO DC1: Memory not readable at given address." I added X=CC00-CFFF to my EMM386, I added EMMExclude = CC00-CFFF" to my [386Enh] section in SYSTEM.INI. At bootstrap time, I went into Advanced BIOS setup, under Plug and Play and set the ISA Shared Memory Size to 16K starting at CC00. I have nothing else using I/O 350-35F, IRQ 10 or DMA 7. My sound card is an ENSONIQ soundscape. The other boards in the machine are an Adaptec 1540CF SCSI controller and an ATI Mach 64 SVGA adapter. I even tried changing the comfiguration mode for the ISA to ICU (in the Plug and Play section of the Advanced BIOS setup). Nothing has had any effect at all. The symptom has been absolutely constant: "Memory not readable at given address". Thanks in advance for any help anyone can give me! Jim Gast