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Forum Index : Microcontroller and PC projects : Proposal for correct IDC I/O pin numbers.

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stuarts

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 199
Posted: 12:35pm 07 Jul 2011
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Sparkey, put the Maximite in front of you, with you looking at the back of the Maximite. If you now look at the I/O connector, you are looking at it the same way as the picture in the maximite manual.

You have to work out whether yours is soldered in the right or the wrong way. Thats a matter of contention. The real reference is the picture in the Maximite manual.
Time is nature's way of keeping everything from happening all at once.
 
sparkey

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 819
Posted: 12:45pm 07 Jul 2011
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thanks stu i`ll look later i am busy atm but also i would like to add to "don" i have a 2 port "kvm "switch running between my maxi and my pc ...moral of the story ... less power consumed and also i can still hyper terminal into the maxi ... cheers don i thought that some would find this interesting the only connector not used is the mouse to the maxi "for obvious reasons,,,regards sparkey...
technicians do it with least resistance
 
rhamer
Senior Member

Joined: 06/06/2011
Location: Australia
Posts: 174
Posted: 12:48pm 07 Jul 2011
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  sparkey said   ok i have a vertical straight hedder pin sckt with pin 1 connected straight now what i would like to be explained is the i/o pins its pretty straight foward i would guess but there is always room in my mind for confusion... sorry hereditry there ...now i gather looking down on the headder pin six of the hedder is i/o (1) so from there it jumps up and down being pin (2)i/o the opposing pin(1) have i got this right ...really any body or actully every body should have fitted a vertical straight hedder in my opp ..but thats not what the poor newbies think when they solder in the right ange headder ,,,... and they get so con fused ...no bloddy wonder... regards sparkey


In you case;

The original SC circuit diagram is correct.
The circuit that came with the Altronics kit is correct
The board overlay is correct.
The 26w connector is correct
The ribbon cable is wired 1 to 1
The pinouts on the expander are the same as the Maximite and the original circuit.
The expander circuit diagram is correct and matches the original circuit.

Regards

Rohan

P.s. Sorry, it is taking me a little longer than it should to get over it.
Rohan Hamer
HAMFIELD Software & Hardware Solutions

Makers of the Maximite Expander.

http://www.hamfield.com.au
 
sparkey

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 819
Posted: 12:51pm 07 Jul 2011
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thanks rohan i will be buying a second expander board from you hope fully it will have white printing on it pls let me know..regards sparkey
technicians do it with least resistance
 
rhamer
Senior Member

Joined: 06/06/2011
Location: Australia
Posts: 174
Posted: 12:55pm 07 Jul 2011
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  sparkey said   thanks rohan i will be buying a second expander board from you hope fully it will have white printing on it pls let me know..regards sparkey


Thanks Sparky, I placed an order today for another batch, and double checked the overlay.

Regards

Rohan
Rohan Hamer
HAMFIELD Software & Hardware Solutions

Makers of the Maximite Expander.

http://www.hamfield.com.au
 
sparkey

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 819
Posted: 01:04pm 07 Jul 2011
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can i send a postal order and if it is possable you should haveb my deatails on file and als at what expense sincearly sparkey
technicians do it with least resistance
 
donmck

Guru

Joined: 09/06/2011
Location: Australia
Posts: 1313
Posted: 04:31pm 07 Jul 2011
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  sparkey said   thanks stu i`ll look later i am busy atm but also i would like to add to "don" i have a 2 port "kvm "switch running between my maxi and my pc ...moral of the story ... less power consumed and also i can still hyper terminal into the maxi ... cheers don i thought that some would find this interesting the only connector not used is the mouse to the maxi "for obvious reasons,,,regards sparkey...


Thanks sparkey, have added to:
http://www.themaximitecomputer.com/maximite-control/

Cheers Don...
https://www.dontronics.com
 
aargee
Senior Member

Joined: 21/08/2008
Location: Australia
Posts: 255
Posted: 03:47am 08 Jul 2011
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Rohan,
Some of the Silicon Chip diagram is in fact wrong. Specifically the pin labelling for the PIC, this was a real pain when translating the Maximite to the 100pin PIC device! Geoff's website circuit is correct.

- Rob
For crying out loud, all I wanted to do was flash this blasted LED.
 
rhamer
Senior Member

Joined: 06/06/2011
Location: Australia
Posts: 174
Posted: 05:42am 08 Jul 2011
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  aargee said   Rohan,
Some of the Silicon Chip diagram is in fact wrong. Specifically the pin labelling for the PIC, this was a real pain when translating the Maximite to the 100pin PIC device! Geoff's website circuit is correct.

- Rob


Look, I'm trying to get over this and move on....

Believe me I know what was right and what was not, I had to trash a whole board run because of the SC diagram having +5 & +3.3 reversed.

As for the other stuff,.......

Ok, clearly more therapy required....
Rohan Hamer
HAMFIELD Software & Hardware Solutions

Makers of the Maximite Expander.

http://www.hamfield.com.au
 
sparkey

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 819
Posted: 10:42am 08 Jul 2011
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dear dom or don sorry um there is a slight setback with the "kvm" switch in the fact that the mouse plug is left haning at what you may call"floating " i dont know if it is just my particular unit but if the maxi is turned on then when u use the mouse on your "pc" selected it floats round like having a mouse pointer that runs a little wild ...may be that the left over mouse plug needs a ..how do i say a pull/up/or pull/down resistor added to that plug ...well theres my story sorry if i put this in the wrong post...regards sparkey....hope you and family are well ...
technicians do it with least resistance
 
donmck

Guru

Joined: 09/06/2011
Location: Australia
Posts: 1313
Posted: 02:12pm 08 Jul 2011
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  sparkey said   dear dom or don sorry um there is a slight setback with the "kvm" switch in the fact that the mouse plug is left haning at what you may call"floating " i dont know if it is just my particular unit but if the maxi is turned on then when u use the mouse on your "pc" selected it floats round like having a mouse pointer that runs a little wild ...may be that the left over mouse plug needs a ..how do i say a pull/up/or pull/down resistor added to that plug ...well theres my story sorry if i put this in the wrong post...regards sparkey....hope you and family are well ...


No worries Sparkey, I'll remove the post then,

Cheers Don...
https://www.dontronics.com
 
sparkey

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 819
Posted: 05:38pm 08 Jul 2011
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dear don my "kvm"switch is years old and i dont know if anybody elese has tried this but it is only a two port switch ...um may only be that i only paid 10 bucks for it ..i remember having that floating mouse problem even when connected to two pc`s so dont despair others from trying it for them self ...also if the maxi is turned off it does not have this problem sorry i should have made more detailed entry but i also have not tried it with the maxi power comming from the usb ..will try in the morning and will post on this page regards sparky
technicians do it with least resistance
 
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