Atari IDE Kit also needa a modified Parallel Port

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rcamp48
Captain Atari
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Posts: 175
Joined: Wed Feb 21, 2018 8:03 am

Atari IDE Kit also needa a modified Parallel Port

Post by rcamp48 »

Hey guys, I just found out that the Atari Portfolio IDE kit also needs a modified Parallel interface, this is the setup for it , I will probably get Don to do 3 of them for me , I have 1 and have another 2 coming .... I thought according to the wiring diagram there was no modifications needed on the Atari Portfolio interface, but I was wrong, there is a total of 21 short wires needed to be soldered to the back of the circuit board. I can get Don to do a few and buy a few more as well, I have a good source for extra parallel ports.

If anyone wants their money back, I will understand, Don has the money saved , but if anyone wants to go ahead with parallel port modification, we can do it for you. (AS well as memory upgrades). I am getting my 2 Atari Portfolios upgraded later this summer.


8255 Sub-D-25 IDE
pin name pin name pin name

5 Port A.0 ------ 2 Data 0 -------- 17 Data 0
4 Port A.1 ------ 3 Data 1 -------- 15 Data 1
3 Port A.2 ------ 4 Data 2 -------- 13 Data 2
2 Port A.3 ------ 5 Data 3 -------- 11 Data 3
44 Port A.4 ------ 6 Data 4 -------- 9 Data 4
43 Port A.5 ------ 7 Data 5 -------- 7 Data 5
42 Port A.6 ------ 8 Data 6 -------- 5 Data 6
41 Port A.7 ------ 9 Data 7 -------- 3 Data 7

20 Port B.0 ------ 1 Strobe -------- 4 Data 8
21 Port B.1 ------ 14 Auto Feed------- 6 Data 9
22 Port B.2 ------ 16 Init -------- 8 Data 10
24! Port B.3 ------ 17 Select in------- 10 Data 11
25 Port B.4 ~~~~~~ 18* (Gnd) -------- 12 Data 12
26 Port B.5 ~~~~~~ 19* (Gnd) -------- 14 Data 13
27 Port B.6 ~~~~~~ 20* (Gnd) -------- 16 Data 14
28 Port B.7 ~~~~~~ 21* (Gnd) -------- 18 Data 15

16 Port C.0 ------ 12 Paper out------- 35 Address 0
17 Port C.1 ------ 13 Select -------- 33 Address 1
18 Port C.2 ~~~~~~ 22* (Gnd) -------- 36 Address 2
19 Port C.3 ------ 15 Error ---|>o-- 1 /Reset
15 Port C.4 ------ 11 Busy ---|>o-- 37 /CS 0
14 Port C.5 ------ 10 Ackn ---|>o-- 38 /CS 1
13 Port C.6 ~~~~~~ 23* (Gnd) ---|>o-- 25 /IO Read
11! Port C.7 ~~~~~~ 24* (Gnd) ---|>o-- 23 /IO Write

25 Gnd ----+--- 2 Gnd
|--- 19 .
|--- 22 .
|--- 24 .
|--- 26 .
|--- 30 .
+--- 40 Gnd

+5V---\/\/\--->|--- 39 /ACT (/Busy)
R LED
Notes:
the 25 pin to CF side has been done as far as I know, the only thing left is modifying the parallel port....

Russ
Now supporting Atari Portfolio , my archives are still being maintained.
BBS is now up again as an Atari BBS, run on PC, cause I sold everything but my Atari Portfolio.
Note: Atari Portfolio IDE CF kits are being made. Get yours today! :megaphone:
Note that my BBS is back online with Win-server 8.0454.8 at telnet://spyvisitsspybbs.com:1990 and http://www.spyvisitsspybbs.com:1991
wietze
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Re: Atari IDE Kit also needa a modified Parallel Port

Post by wietze »

Is this pin mapping not possible to do on the ide adapter side?
rcamp48
Captain Atari
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Posts: 175
Joined: Wed Feb 21, 2018 8:03 am

Re: Atari IDE Kit also needa a modified Parallel Port

Post by rcamp48 »

Not at all you notice that there are pins missing from the parallel interface and the pin mapping is from the 8255 chip , 2 pins
Russ
If you really need a second parallel port I can have one extra made up
Russ
Now supporting Atari Portfolio , my archives are still being maintained.
BBS is now up again as an Atari BBS, run on PC, cause I sold everything but my Atari Portfolio.
Note: Atari Portfolio IDE CF kits are being made. Get yours today! :megaphone:
Note that my BBS is back online with Win-server 8.0454.8 at telnet://spyvisitsspybbs.com:1990 and http://www.spyvisitsspybbs.com:1991
vido
Atari Super Hero
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Posts: 720
Joined: Mon Jan 31, 2011 7:39 pm

Re: Atari IDE Kit also needa a modified Parallel Port

Post by vido »

If new parallel port is needed then I believe IDE can be integrated/added to it?
rcamp48
Captain Atari
Captain Atari
Posts: 175
Joined: Wed Feb 21, 2018 8:03 am

Re: Atari IDE Kit also needa a modified Parallel Port

Post by rcamp48 »

Yes I think its possible I will check into it, there should be room....
Now supporting Atari Portfolio , my archives are still being maintained.
BBS is now up again as an Atari BBS, run on PC, cause I sold everything but my Atari Portfolio.
Note: Atari Portfolio IDE CF kits are being made. Get yours today! :megaphone:
Note that my BBS is back online with Win-server 8.0454.8 at telnet://spyvisitsspybbs.com:1990 and http://www.spyvisitsspybbs.com:1991
rcamp48
Captain Atari
Captain Atari
Posts: 175
Joined: Wed Feb 21, 2018 8:03 am

Re: Atari IDE Kit also needa a modified Parallel Port

Post by rcamp48 »

Theoretically this is possible to do everything in the parallel port interface, I am sacrificing my one good parallel port so that Don can design a small board that will fit into it, this is what was done 20 years ago on Klaus's interface (not to pretty), I believe that we can do something along those lines I am waiting for a message from him back regarding needing the shielding on the parallel interface it appears that he left his off.... Pictures are too big, go to Atariage forums for the pictures, unless I can resize them but they have details that would be lost if I resize them, here is the link: https://atariage.com/forums/topic/30504 ... nt-4503241
Now supporting Atari Portfolio , my archives are still being maintained.
BBS is now up again as an Atari BBS, run on PC, cause I sold everything but my Atari Portfolio.
Note: Atari Portfolio IDE CF kits are being made. Get yours today! :megaphone:
Note that my BBS is back online with Win-server 8.0454.8 at telnet://spyvisitsspybbs.com:1990 and http://www.spyvisitsspybbs.com:1991
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