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sparkey

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Joined: 15/06/2011
Location: Australia
Posts: 819

Posted: 10:06am 30 Jun 2011

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the only true pinnout for the maxi is in the maxi manual ...i take it is this correct as i dont want to blow up the freq/period sections <pins 11 to 14 > ...looking straight at the maxi pins from top view if it had a vertical headder socket ...am i correct here ...thanks for any replies ....its nice to say thank you ...manners...

technicians do it with least resistance

rhamer
Senior Member

Joined: 06/06/2011
Location: Australia
Posts: 174

Posted: 11:06am 30 Jun 2011

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sparkey said the only true pinnout for the maxi is in the maxi manual ...i take it is this correct as i dont want to blow up the freq/period sections <pins 11 to 14 > ...looking straight at the maxi pins from top view if it had a vertical headder socket ...am i correct here ...thanks for any replies ....its nice to say thank you ...manners...

Be careful, the right angle connector is backwards.

I'm pretty sure pin 1 is marked on the board.

If you used a straight connector instead of the right angle one then the notch should point to the edge of the board.

Pin 1 is next to the keyboard connector and the edge of the board.

The ribbon cable counts in order from 1 to 26.

The IDC connector counts in a zig zag.

[code]
eg
----------------------------------
2 4 6 8 10 12 14 16 18 20 22 24 26
1 3 5 7 9 11 13 15 17 19 21 23 25
-------------- ---------------
[/code]

Regards

Rohan
Edited by rhamer 2011-07-01

Rohan Hamer
HAMFIELD Software & Hardware Solutions

Makers of the Maximite Expander.

http://www.hamfield.com.au

James_From_Canb

Senior Member

Joined: 19/06/2011
Location: Australia
Posts: 265

Posted: 11:09am 30 Jun 2011

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When in doubt, measure it.

For example, run this:
' Change line 10 each time you run this
10 P = 11

' make each pin a digital output and set each pin low
20 for n = 1 to 20: setpin n,8: pin(n) = 0: next n

' set the selected pin High. It will be the only one (except the 3.3V and 5V lines) that is high.
30 Pin(P) = 1

Then get a multimeter and check the DC voltage between the pin you think is 11 and Ground

Change line 10 to P = 12, and repeat.

My mind is aglow with whirling, transient nodes of thought careening through a cosmic vapor of invention.

Hedley Lamarr, Blazing Saddles (1974)

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