| Title: | AMIGA NOTES |
| Notice: | Join us in the *NEW* conference - HYDRA::AMIGA_V2 |
| Moderator: | HYDRA::MOORE |
| Created: | Sat Apr 26 1986 |
| Last Modified: | Wed Feb 05 1992 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 5378 |
| Total number of notes: | 38326 |
I have uploaded Yet another cheap hardware hack to Tape::.
If you have an A500 and want to add 2+ meg cheaply, have a read.
I dont know if it works but it's worth a look.
Glenn.
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 3762.1 | What is it's name? | DNEAST::SEELEY_BOB | Wed May 09 1990 10:11 | 1 | |
| 3762.2 | Try TAPE::USER2:[UPLOAD]CHEAPRAM.LZH | BOMBE::MOORE | Eat or be eaten | Wed May 09 1990 15:44 | 1 |
| 3762.3 | --- Dodgy --- | WELSWS::FINNIS | Tue May 15 1990 11:01 | 19 | |
What's with the banks of 512k.
Is this to say that it's paged or what ?
Is it Slow-fast ram, fast-slow ram, or chip-slow-fast-paged ram ?????
Sounds Strange to me !!!!
There must be an easier way to address fast memory than
this surely....
- Pete -
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| 3762.4 | Dont forget....It's a hack! | GIDDAY::LAWSON | Sun May 13 1990 13:48 | 36 | |
RE: .3
>Whats with The banks of 512k.
Methinks a limitation caused by 256kb chips, i.e,256kb X 16bits =
512k bytes.
>Is this to say that it's paged or what?
Don't believe so!
>Is it Slow-fast ram, fast-slow ram, or chip-slow-fast-paged ram ?????
Yes.
>Sounds Strange to me !!!!
Seems to work.
>There must be an easier way to address fast memory than
this surely....
Maybe........
I've just about completed a design which interfaces those old microvax
2000 2/4 Meg Arrays to an a500 via 3 chips with *NO* butchery of the Vax
memory board. i.e, it becomes plug compatible. (it is *Based* on Les'
design) The only trade-off is that you only get access to half of the
memory on the board because the vax board is 32 bits wide. Now if I had
a 68020..........
I'll post the design here If (and when) it works....
Glenn
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| 3762.5 | WELSWS::FINNIS | Fri May 25 1990 11:42 | 8 | ||
Ok
Sounds much better
- Pete -
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