Re: Sick IIGS - CMS SCSI Card Combo

[Rubywand <rubywand@swbell.net>]

Rayni Obenauf writes ...
> 
>    I recently received a donated IIGS, ROM 01, pretty much stripped, no
> software, and thanks to Nathan Mates outstanding FAQ pages, pretty much
> figured out how to get it running ProDOS, GS/OS, downloaded software, etc.
> I purchased a Sirius RAM GS card and a CMS SCSI card from Alltech Elec. so
> I could run GS/OS without having to swap floppies. Unfortunately, the CMS
> card came with nothing but the static shield, no documentation, no
> software. After much grief, I downloaded the software from Alltech's web
> site, and succeeded in formatting the hard drive, loading 6.0.1 OS, and
> some apps, getting everything to work.
>    The problem arises from the fact that the combo will work fine for a
> few power-up boots, then refuse to work for the length of my patience.
> When it works, it always works fine till I shut the power off (i.e.,
> through a three fingered salute restart or GS/OS software restart), then
> at next power-up, won't recognize the hard drive. Several hours or days
> later, I come back and it boots from the hard drive again.

 ....


     That is a weird problem. You mention "termination power"; but, you
do not mention "termination" (i.e. the termination load that is supposed
to be at the end of a SCSI chain).  The long waits between good/bad
starts sounds a bit like a termination power supply output which is not
loaded-- just a guess.

     If termination is set correctly, then, maybe, the info below will
help. It is excerpted from the Apple II comp.sys.apple2 Hard Disk and
SCSI FAQs (file F003HDNSCSI.TXT) as maintained on Ground at 

ftp://ground.isca.uiowa.edu/2/apple2/Faqs
http://ground.isca.uiowa.edu/2/apple2/Faqs



>>

From: Jack Countryman IAC

013- I want to configure a CMS hard drive controller card to run a
     20 meg drive for a //e. Could someone supply info on settings?

     According to the CMS manual, page D3, the six sets of eight pairs
of jumpers
(u1....u6) are for the following purpose:
 
    _______________________________________________________________
   /                                                               |
  /     u 1          u 2            u 3            u 4       j2    |
 /                                                                 |
/                                                                  |
|                                                                  |
|                                                                  |
|                                                                  |
|                                                                  |
|                                                                  |
|    u 5     u 6                                                   |
|___________________________________________                    j1 |
                                            |                      |
                                            |______________________|


u 1: Boot Scan delay....manual shows no jumpers here in default
     configuration

u 2: first (left) jumper is 'Enable I.C.P. (Yes/No)', middle 6 not
     used, last (right) is 'multiple initiators (Yes/No)'...manual
     shows no jumpers in default configuration

u 3: Selection phase time out delay....I believe this sets how long
     the card waits for the drive to come up to speed(?)...manual
     shows the default as having 4, 5, and 7 with jumpers installed

u 4: Arbitration phase time out delay....manual shows default as no
     jumpers installed

u 5: Bus Free phase time out delay...manual shows default as jumper
     on number 1

u 6: Interrupt recovery delay....manual shows jumpers on 3, 4,
     and 5


     J1 and J2 are single sets of pins. The manual says J2 is not used,
but J1 is to be jumpered.


     The card I have here, came out of a IIGS where it was hooked to
first a twenty meg CMS drive, and later a forty meg CMS drive.  It has
the following jumpers set:

u1:  jumper on 7
u2:  no jumpers
u3:  jumpers on 4, 5, and 7
u4:  no jumpers
u5:  jumper on 1
u6:  jumpers on 3, 4, and 5
j2:  no jumper
j1:  jumper


     As I recall, this setup yeilded a rather long pause for the hard
disk to come up to speed (about 40 to 45 seconds) that we found
necessary at the time to avoid boot problems.

____________________________

 ....


From: Gary Black

020- On my ROM-03 GS the hard disk is connected to a CMS SCSI card.
     How do I install System 6.0.1?

     It turns out that the SCSI drivers that come on the Sys 6.0.1
Install Disk downloaded from ftp.apple.com are incompatible with CMS ver
3.0 (and probably earlier) SCSI cards.

     What I did was to replace scsi.manager and scsihd.driver in the
System 6.0.1 Install disk SYSTEM/DRIVERS folder with scsi.manager,
scsihd.driver, AND CMS.driver from the CMS Utility disk.

     With the replacement scsi drivers installed, the Install disk
recognizes the hard drive and installation went smoothly from that
point. (The CMS files are dated 1989 and 1990, so they are a bit older
than the 6.01 files, which are dated 1993. But, they work!)

<<


Rubywand