rjn@hpfcmp.UUCP (01/13/88)
re: The basenote has probably aged off most systems....
In: /comp.sys.hp / 11:20 am Dec 7, 1987 /
/ mjb%hoosier.utah.edu.uucp@utah-gr.UUCP (Mark J. Bradakis) writes...
> Is it positively, absolutely true that a 98700/98710 (Gatorbox) display
> engine can NOT be set to have a frame buffer address 0x800000 or 0x900000
> when used with a 9000/320 or 9000/350? This tidbit is taken from the HP
> Series 300 Configuration Reference manual, page A-445. The reason I would
> like to have the frame buffer moved is because a 98547 has a frame buffer
> running from 0x200000 to 0x3fffff, and the Gatorbox gives you two choices:
>
> 0x200000 0x300000 0x400000
> 98547 card |-----------------------|
> 98700 |------------|
> or |---------|
>
> Any suggestions as to how one might get a 98700 and 98547 working together?
I did some asking around, and it turns out that the high addresses (0x08 and
0x09) are proscribed only because the kernel debugger (not any of the
usercode debuggers) and the 98206 DIO-I test stimulus card use addresses in
that range. As long as you pull the 98287A (98700A/H) interface during
SE/CE debug/maintenance visits, you should be able to operate the 98700 at
0x8 or 0x9.
Of course, this configuration is not officially supported. See page A-2 for
discussion of what that means.
Regards, Hewlett-Packard
Bob Niland 3404 East Harmony Road
[ihnp4|hplabs]!hpfcla!rjn Fort Collins CO 80525mjb%hoosier.utah.edu.uucp@utah-gr.UUCP (Mark J. Bradakis) (01/21/88)
Is it positively, absolutely true that a 98700/98710 (Gatorbox) display
engine can NOT be set to have a frame buffer address 0x800000 or 0x900000
when used with a 9000/320 or 9000/350? This tidbit is taken from the HP
Series 300 Configuration Reference manual, page A-445. The reason I would
like to have the frame buffer moved is because a 98547 has a frame buffer
running from 0x200000 to 0x3fffff, and the Gatorbox gives you two choices:
0x200000 0x300000 0x400000
98547 card |-----------------------|
98700 |------------|
or |---------|
Any suggestions as to how one might get a 98700 and 98547 working together?
mjb.
mjb@hoosier.utah.edu
Fat Chance Garage and Brewery - Cars drive in...
but they don't drive out!