| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 2849.1 | changed pins in newer parallel ports!!! | SPIDER::LONG | | Tue Aug 22 1989 00:14 | 9 |
| WARNING!!!!!!!
The 2000 ( and most likely the 500 ) has the state of the reset pin set
differently than the 1000!!! It took a few days to figure out why my
NEC P6 printer was hung. Hopefully the borrowed Digiview is only looking
at this pin for control and not for a ground!!!
Good luck,
Dick
|
| 2849.2 | quite different | MKODEV::OSBORNE | Blade Walker | Tue Aug 22 1989 12:27 | 14 |
| Re:.1
>Is it possible that the parallel port in the Amiga 1000 is different from
>the parallel port in the Amiga 500?
Hmmm. My digi-view, which plugged directly into a 1000, required a "gender
changer" to plug into a 2000 (I believe the 500 has the same port connector).
This "gender changer" also contained a small power-conditioning circuit, I
believe, and the pins were not "straight thru". This gadget was a digi-view
special for this purpose, and works fine.
So the parallel port is different between the 1000 and the 2000. Some early
notes on the 2000 discuss this in detail, I think.
John O.
|
| 2849.3 | Different Gender | PENUTS::JCANHA | | Tue Aug 22 1989 13:14 | 10 |
|
Yes, the parallel ports have different genders, the A1000 is male
and the A500 is female. I am currently using a "straight" gender
changer. Do you think, I could construct my own gender changer based
on the differences between pin set-ups? If so, does anyone know how
I could obtain the pin set-up for the parallel port on the Amiga 1000?
Thanks,
- Jeff C.
|
| 2849.4 | Here's the Amiga. I also have the Centronics, if you need it. | GIAMEM::I_SHAW | Six days | Tue Aug 22 1989 14:22 | 36 |
| This is the pin listing for the 500, 2000 and 2500...
1 Strobe
2 Data 0
3 Data 1
4 Data 2
5 Data 3
6 Data 4
7 Data 5
8 Data 6
9 Data 7
10 Acknowlege
11 Busy
12 Paper Out
13 Select
14 +5V Pullup
15 No Connection
16 Reset
17 Ground
18 Ground
19 Ground
20 Ground
21 Ground
22 Ground
23 Ground
24 Ground
25 Ground
Note: 17-25 are all twisted pair returns except one, which is the
chassis ground. I'm not sure if it's 25 or 17; in most applications it doesn't
matter.
See a note way back about the LJ252 printer. Do a dir/tit="lj" to get
the list. In one of the later LJ notes there should be an Amiga 1000 parallel
pinout. The important things are switched: the +5V pullup and the reset.
--mikie--
|
| 2849.5 | A1000 Parallel pinout | MQOFS::LECOMPTE | Hubert Lecompte | Tue Aug 22 1989 15:43 | 31 |
| Here is the A1000 pinout.
1 DRDY
2 Data 0
3 Data 1
4 Data 2
5 Data 3
6 Data 4
7 Data 5
8 Data 6
9 Data 7
10 ACK
11 BUSY
12 POUT
13 SEL
14 GND
15 GND
16 GND
17 GND
18 GND
19 GND
20 GND
21 GND
22 GND
23 +5V 100 mA max.
24 ---
25 RESET
Hubert.
|
| 2849.6 | Exactly what I needed | PENUTS::JCANHA | | Tue Aug 22 1989 16:55 | 7 |
|
Thankyou everyone for your help and information. I can't believe
how quickly I got a response, especially wih the pin description.
Thanks,
Jeff C.
|