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Looking for a DTC-3150AS BIOS image

pille

Member
Joined
Jun 5, 2016
Messages
15
Location
Germany, Unna
Hello guys!

I am looking for a bios image for a DTC-3150AS scsi card. Unfortunately the card was laying around for too long and the ROM got crippled. Does anyone have a bios image?

Thanks in advance!

Marco
 

pille

Member
Joined
Jun 5, 2016
Messages
15
Location
Germany, Unna
Thank you for looking into this. The problem is that the controller gets an unexpected software interrupt at a certain address when scanning for devices. I suspect the bios being damaged.
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,125
Location
Pacific Northwest, USA
I don't think that's the case. Were the BIOS to be damaged, the checksum wouldn't verify when scanned by the PC BIOS and wouldn't be entered. The first thing that I'd do is check for I/O and IRQ conflicts.
 

pille

Member
Joined
Jun 5, 2016
Messages
15
Location
Germany, Unna
I got the controller working. But only on the Peaktron board. The PC10-II still rejects the card. I will try again and report back. Just in case I ordered a XT-IDE board and an EPROM programmer.
 

Cimonvg

Experienced Member
Joined
Apr 4, 2009
Messages
267
Location
scandinavia
hello
if any help some settings from the (DTC3x50) manual:

SW1(1-2) - interrupt "a"
SW1(3) - scsi parity switch
SW1(4-6) - scsi id

SW2(1-4) - interrupt "b"
SW2(5-6) - memory adress
SW2(7) - dual speed support
SW2(8) - polarity switch
SW2(9) - floppy enable
SW2(10) - factory set (always open)

W1 floppy adress
1-2 primary (3f2h-3f7h)
2-3 secondary (372h-377h)

w2 , factory set (allways jumper installed)
/cimonvg
 

pille

Member
Joined
Jun 5, 2016
Messages
15
Location
Germany, Unna
So I decided to use the 3150 on the Peaktron board and the IDE-8 in the PC10. Now I have a confusing problem. As soon as I add a second device to the bus or only a hard drive, I cannot boot from floppy. I used an FDC-344 and a Panatek Multi-I/O card.
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,125
Location
Pacific Northwest, USA
We need a scorecard!

What device are you adding to what bus? (i.e. ISA bus; SCSI bus?) Please be a little more explicit--and which machine (Peaktron or PC10)?
 

pille

Member
Joined
Jun 5, 2016
Messages
15
Location
Germany, Unna
I concentrate on the peaktron at the moment.

On the board are:

OAK 077 VGA Card
DTC-3150AS
FDC-344

Nothing else. Attached to the FDC-344 is one 5.25" 360k floppy drive. On the DTC-3150AS is one HDD. The bus is terminated.
 

pille

Member
Joined
Jun 5, 2016
Messages
15
Location
Germany, Unna
Just to give a small update. It seems that the board does not allow booting from SCSI. Neither in normal or turbo mode. Maybe a newer BIOS might help. IRQ 6 is not used.
 
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