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Posted: **Thu May 20, 2010 4:54 pm**

I don't want to use the DP on a COMMON CATHODE LED.

I want to use thr RB0 for interupting, so I "shifted" the connections of the LED on the port B one pin "up".

The DP HAS på be connected, so I connect it to the g-segmen RB7, but ...

the segment the DP is connected to will NOT light up if I choose to NOT show the DP and
ALLWAYS light up if I choose to light uo the DP !

The error is there with both common anode and cathode.

What is wrong ?

Posted: **Fri May 21, 2010 5:16 am**

If you keep the DP pin connected to something but customise the C code for this component to prevent this from being used/displayed, then the code will work on the microcontroller (but the simulation will be slightly worng).

Posted: **Fri May 21, 2010 7:13 am**

In fact there IS a posibility to choose the "Not connected" for the DP !

In this situation the simulation will work fine - but I then have problems with the HW.

Two Q comes up I think, why:

1) this posibility - if it must NOT be used ?
2) the differens in simulation and HW-implementation ?

It seems like a simple error to correct !

Posted: **Fri May 21, 2010 4:05 pm**

What are the problems with the hardware? A program seems to compile ok when the decimal point is left unconnected.

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Don't wanna use DP ???

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