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centrex

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Joined: 13/11/2011
Location: Australia
Posts: 320

Posted: 11:24pm 22 Nov 2015

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The above is a picture of my Skinnymite and motherboard, the led in the top left is just a flashing led as per Geoffs manuals to show me the board is working.
The board will eventually have have headers to allow Arduino style boards to be used.The board also includes the 20mhz xtal as per Matherps idea.

All is good the PIC is programmed with Micromite plus 4.7 B37, so far so good.

The led will flash.

The left hand socket is for a 2.8in led display which works correctly once initialised OPTION LCDPANEL ILI9341,p,27,28,24 and OPTION TOUCH 51,33.

Now the problem if I unplug the lcd and reload the flashing led program it will not run, If I leave the console connected the led flashes unplug the console all stops.
It wont run even with auto run on.

If I plug in the lcd the led will flash.

Disabeling the LCD panel and Touch all is ok a flashing led, it all appears to be tied up with the LCD initialisation.

Any ideas and yes it has a very stable power supply.

Cliff

Cliff

WhiteWizzard
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Joined: 05/04/2013
Location: United Kingdom
Posts: 2944

Posted: 02:56am 23 Nov 2015

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Cliff,

Does your Flashing LED program include any graphical/TFT commands? These can be things such as CLS, TEXT..., etc.

WW

centrex

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Joined: 13/11/2011
Location: Australia
Posts: 320

Posted: 09:27am 23 Nov 2015

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Hi WW

No it is just what is in the manuals.
setpin 32 to dout
then turn pin 32 on and off in a loop

Cliff

Cliff

CircuitGizmos

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Joined: 08/09/2011
Location: United States
Posts: 1427

Posted: 11:05am 23 Nov 2015

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Are all grounds connected together?

If you have grounds that are not connected, the LCD being plugged in might connect those grounds, and/or the console might be completing the ground paths.

Micromites and Maximites! - Beginning Maximite

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6283

Posted: 11:22am 23 Nov 2015

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Interrupts enabled for 'touch' but input floating when the display is unplugged.

Not sure if you need a pull UP or pull DOWN resistor.

Jim

VK7JH
MMedit

BobD

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Joined: 07/12/2011
Location: Australia
Posts: 935

Posted: 11:37am 23 Nov 2015

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You initialised LCDPANEL so if not using it then maybe you should un-initialise LCDPANEL if that is possible. As TJ says, it is probably looking for signals that are no longer present and can't get past that point.

centrex

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Joined: 13/11/2011
Location: Australia
Posts: 320

Posted: 02:29pm 23 Nov 2015

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Hi all

Grounds are not a problem, I think TJ has picked the problem as it all works as expected and noted when the LCD setup is disabled.

Cliff

Cliff

centrex

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Joined: 13/11/2011
Location: Australia
Posts: 320

Posted: 11:08pm 04 Jan 2016

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A possible question for Matherp?

As noted above I have a Skinnymite on a motherboard with Peters 20mhz xtal mod.
I have wired to drive an ILI9341 LCD with touch all using the connections Peter has for his 64 pin ultimate backpack.
This has the touch interrupt connected to pin 33 of the Pic micro.
The touch will not work I have had to rewire touch interrupt to pin 32 to get the touch to work.
The rest of the display works fine and with touch on pin 32 no problem.
I note in the MM+ manual pin 33 is an interrupt only so I am wondering why I have this problem?

Thanks
Cliff
Edited by centrex 2016-01-06

Cliff

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