Hi all,
Found some time to go further with my Retro PCs.
Locally i found and bought an Adaptec ACB-2070A (later revision which mentioned in the manual which i found on the internet) for just 15 euros. So i took the gamble.
Seller said it was an MFM and RLL controller.. But i found more on the RLL side in the manual. So iam guessing its just maybe rll only.
Before i bought it, i checked the manual to see if the supported drives matched with the one i wanted to use. Iam iam guessing it would? or not?
My problem here is to setup the controller, so it would work with my ST-277R-1 drive. For now its more a test to see if i can get the controller board in a working state.
Normally there are much better controllers to find that are very easy to install and setup.. Just go with Debug and knowing the rom address.
Iam not high skilled with using Debug.. But if i can find the right commands, then its not hard to doing the rest.
The situation is that right now iam only having an ms-dos 6.22 bootdisk with Debug on it..
The way the controller is configurated is due tables like it seems.. In the manual there a decent long list of hard drives.
About the tables. i found it more clearer then want the manual is listed.
https://stason.org/TULARC/pc/hard-di...ACB-2070A.html
If iam correct there are only 4 tables listed? If i have to match.. The controller is setup as table 0 [MN and OP] right now are connected.
Iam guessing i need table 2?
But strange it wouldnt match correctly 1:1 on the table specs of my hard drive.. Those are: 820 cyl, 6Heads, 26 sec / track.
The table of the controller saying (as listed on stason.org)
981 cyl , 5 heads (and nothing about the sec/track.)
how do i setup it right so i can low-level format it and getting the controller board working.
How can i find the rom address to go with the low-level formatter utility.? Normally its set on the PCB.. So then you could find it.
But this controller card seems how have an hardware fixed rom address??
Found some time to go further with my Retro PCs.
Locally i found and bought an Adaptec ACB-2070A (later revision which mentioned in the manual which i found on the internet) for just 15 euros. So i took the gamble.
Seller said it was an MFM and RLL controller.. But i found more on the RLL side in the manual. So iam guessing its just maybe rll only.
Before i bought it, i checked the manual to see if the supported drives matched with the one i wanted to use. Iam iam guessing it would? or not?
My problem here is to setup the controller, so it would work with my ST-277R-1 drive. For now its more a test to see if i can get the controller board in a working state.
Normally there are much better controllers to find that are very easy to install and setup.. Just go with Debug and knowing the rom address.
Iam not high skilled with using Debug.. But if i can find the right commands, then its not hard to doing the rest.
The situation is that right now iam only having an ms-dos 6.22 bootdisk with Debug on it..
The way the controller is configurated is due tables like it seems.. In the manual there a decent long list of hard drives.
About the tables. i found it more clearer then want the manual is listed.
https://stason.org/TULARC/pc/hard-di...ACB-2070A.html
If iam correct there are only 4 tables listed? If i have to match.. The controller is setup as table 0 [MN and OP] right now are connected.
Iam guessing i need table 2?
But strange it wouldnt match correctly 1:1 on the table specs of my hard drive.. Those are: 820 cyl, 6Heads, 26 sec / track.
The table of the controller saying (as listed on stason.org)
981 cyl , 5 heads (and nothing about the sec/track.)
how do i setup it right so i can low-level format it and getting the controller board working.
How can i find the rom address to go with the low-level formatter utility.? Normally its set on the PCB.. So then you could find it.
But this controller card seems how have an hardware fixed rom address??