ZBasic Forum

Posted: **03 May 2007, 15:34 PM**

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?

Posted: **04 May 2007, 9:24 AM**

Possibly. Do you have the same result on both of your ZX-1281 Dev Boards?

Posted: **04 May 2007, 10:27 AM**

I just got the second one yesterday so I will try it this afternoon.

Posted: **04 May 2007, 10:42 AM**

Just tried the second board and it appears to work fine.

Any thoughts?

Posted: **04 May 2007, 12:45 PM**

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.

Posted: **04 May 2007, 14:51 PM**

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!

Posted: **04 May 2007, 23:44 PM**

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.

Posted: **06 May 2007, 16:04 PM**

Thanks!

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