Manuel Bilderbeek <[EMAIL PROTECTED]>
> > -You have to connected a signal for every single piece of hardware
> > that requires 3.58 MHz. access: VDP, MSX Audio, MSX-Music, diskaccess
> > (sometimes), Gouda's SCSI interface, etc. etc. etc.
>
> What??? Does my Gouda SCSI interface need 3.5MHZ??? I thought I could double
> it's performance with your MSX Super Turbo to 200kB/s!
I don't know how it is on other machines. I just know the Gouda SCSI
interface (ROM v1.51) only worked on MY computer with:
-turbo switched back for all I/O ports (read: including the I/O ports
where the SCSI controller is on), AND
-turbo switched back for the cartridgeslot the interface was in
This way, it worked up to 8 MHz., on MY system.
(but in essence, system running on 3.58 during harddisk transfers).
If connected different, it could work, but not reliable.
BTW. the manual itself warns that 7 Mhz. doesn't work well with the
interface. I still think it's a software issue.
> Does your MSX Super Turbo switches back for every I/O access?
Same as with 7 MHz. circuits:
If the Z80's IORQ signal is connected to one of the inputs: yes
If the Z80's IORQ signal is not on one of the inputs: no
(IORQ = Z80 pin 20)
Greetings,
Alwin Henseler ([EMAIL PROTECTED])
http://huizen.dds.nl/~alwinh/msx MSX Tech Doc page
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