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Dev board

 
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mtreat



Joined: 28 Nov 2005
Posts: 10
Posted: 03 May 2007, 22:34 PM    Post subject: Dev board Reply with quote
I am trying to use F.4 & F.5 for some general I/0 without any luck. Is there something to do with the JTAC functions that could be causing this?
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dkinzer
Site Admin


Joined: 03 Sep 2005
Posts: 2493
Location: Portland, OR
Posted: 04 May 2007, 16:24 PM    Post subject: Reply with quote
Possibly. Do you have the same result on both of your ZX-1281 Dev Boards?
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mtreat



Joined: 28 Nov 2005
Posts: 10
Posted: 04 May 2007, 17:27 PM    Post subject: Reply with quote
I just got the second one yesterday so I will try it this afternoon.
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mtreat



Joined: 28 Nov 2005
Posts: 10
Posted: 04 May 2007, 17:42 PM    Post subject: Reply with quote
Just tried the second board and it appears to work fine.

Any thoughts?
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dkinzer
Site Admin


Joined: 03 Sep 2005
Posts: 2493
Location: Portland, OR
Posted: 04 May 2007, 19:45 PM    Post subject: Reply with quote
mtreat wrote:
Just tried the second board and it appears to work fine.
It is possible that the earlier one was erroneously programmed with JTAG enabled. That would explain why those port bits don't work. If none of the four middle bits (bits 2 to 5) work that is almost certainly what the problem is.

In any event, we will replace the dev board.
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mtreat



Joined: 28 Nov 2005
Posts: 10
Posted: 04 May 2007, 21:51 PM    Post subject: Reply with quote
I am really not able to give up the board I have to send it back right now so I will have to work around it for now.

Thanks!
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dkinzer
Site Admin


Joined: 03 Sep 2005
Posts: 2493
Location: Portland, OR
Posted: 05 May 2007, 6:44 AM    Post subject: Reply with quote
mtreat wrote:
I am really not able to give up the board I have to send it back right now [...]

That's OK. We'll send a new one and you can return the other one later.
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mtreat



Joined: 28 Nov 2005
Posts: 10
Posted: 06 May 2007, 23:04 PM    Post subject: Reply with quote
Thanks!
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