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Forum Index : Microcontroller and PC projects : Problem LCDPANEL ILI9341_8bit

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HardingJohn

Regular Member

Joined: 28/07/2017
Location: Australia
Posts: 78

Posted: 07:03am 07 Jun 2019

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I seem to be having problems with the ILI9341_8bit LCD Display on 5.05.06 ARMmite.

The display shows the GUI TEST LCDPANEL screen with all the colours and circles beautifully, but all display commands appear in mirrored image with weird or non existent colours.
When this additional option was added for using this 8bit lcdscreen did testing cover using display commands as well as using the GUI TEST?

Could a wiring mistake be the problem, even though the GUI TEST works??

Just know enough to get me in trouble, but not quite enough to get me out.

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10572

Posted: 08:16am 07 Jun 2019

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Quote Could a wiring mistake be the problem, even though the GUI TEST works??

Yes: but not yours

There are different ways to wire the ILI9341 controller to the display and these affect the commands needed to configure the display. When I wrote the ILI9341_8 driver I had to modify the set up compared to the 16-bit version to match my display's wiring. It sounds like yours is different again. The 8-bit ILI9341 is not a display I like. Generally it is wired to use with an Arduino layout and is compromised as a result.

HardingJohn

Regular Member

Joined: 28/07/2017
Location: Australia
Posts: 78

Posted: 11:40pm 07 Jun 2019

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That's a bugger, thanks for your help anyway.
I wonder how people went using it on their Arduinos.
I bought quite a few of these displays and they all behave exactly the same.

Just know enough to get me in trouble, but not quite enough to get me out.

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