SD2SCSI and ICD adapter (Mega ST2)

Problems with your machine in general.
Post Reply
digitalman
Posts: 16
Joined: Sun Aug 07, 2022 6:59 pm

SD2SCSI and ICD adapter (Mega ST2)

Post by digitalman »

So my hard drive woes continue. I got my hands on an SD2SCSI V5.2 adapter. I've tried all sorts of settings but the device is just not visible on the SCSI bus. The ST boot immediately off the floppy. When I hook up the original hard drive it works just fine.

Wondering if anyone out there is using a SD2SCSI and one of these original SCSI to ASCI adapters. What settings work for you?
User avatar
rubber_jonnie
Site Admin
Site Admin
Posts: 10472
Joined: Thu Aug 17, 2017 7:40 pm
Location: Essex
Contact:

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by rubber_jonnie »

If I were you, I'd start off by looking at how the termination is set on the S2SCSI adapter.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
digitalman
Posts: 16
Joined: Sun Aug 07, 2022 6:59 pm

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by digitalman »

That's the first place I looked. It uses resistor packs but it is software controlled. I've disabled, reenabled. nothing. When I use a real drive and SCSI termination is not set it still sees something. This just does not detect anything on the bus.
User avatar
rubber_jonnie
Site Admin
Site Admin
Posts: 10472
Joined: Thu Aug 17, 2017 7:40 pm
Location: Essex
Contact:

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by rubber_jonnie »

digitalman wrote: Tue Aug 16, 2022 2:45 pm That's the first place I looked. It uses resistor packs but it is software controlled. I've disabled, reenabled. nothing. When I use a real drive and SCSI termination is not set it still sees something. This just does not detect anything on the bus.
Oh well, worth a try.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
User avatar
DoG
Posts: 1125
Joined: Sat Apr 07, 2018 12:26 pm

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by DoG »

How have you set up the SCSI target in the software? Enabled 'SCSI Target' under 'Device 1' ? Tried with smaller size drives then 1GB? I would also uncheck the 'Enable parity' in general menu. Make sure the SCSI ID is set to something other then the ICD card is set to. Don't forget to save.

(Try enable/check 'Map LUNs to SCSI ID' as well)
User avatar
frank.lukas
Posts: 660
Joined: Fri Jan 19, 2018 11:52 am

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by frank.lukas »

When it is the internal tiny icd hostadapter than there is a limit to 1GB I think ...
digitalman
Posts: 16
Joined: Sun Aug 07, 2022 6:59 pm

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by digitalman »

Solved! Best post this incase anyone else has this issue.

The Micro ICD adapter requires Termination Power to PIN 26 on the SCSI port. To enable this on the V5 board there is JP201 and D205 both of which are empty. Had to solder the pin header on JP201 for the jumper. D205 is for a surface mount diode, which I didn't have. So I just pulled a through hole diode from another circuit board and soldered it. Please don't judge my hack job, maybe one day I'll fix it up right. :)

As soon as I did that the SCSI2SD adapter was detected.

I'm thinking this is the same issue with the BlueSCSI. Exact same symptoms and as far as I can see the BS has no option for Termination Power.

Anyway, now to configure some drives. :)

IMG_20220816_151113.jpg
IMG_20220816_151113.jpg (115.87 KiB) Viewed 785 times
User avatar
tOriman
Posts: 73
Joined: Thu Jul 21, 2022 1:08 pm
Contact:

Re: SD2SCSI and ICD adapter (Mega ST2)

Post by tOriman »

Hi digitalman

BRAVO!
http://atari.myftp.org ATARI - Power without price and necessary elements
various varieties for Atari and not only - useful or not, but it's worth a look ...
Post Reply

Return to “HARDWARE ISSUES”