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Forum Index : Microcontroller and PC projects : MM+ ILI9488(3.5") "Touch hardware failure"

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Andrew_G
Guru

Joined: 18/10/2016
Location: Australia
Posts: 873
Posted: 02:36am 22 Nov 2020
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Hi all,

I'm trying to get my Silicon Chip MM+ LCD Backpack to work with an ILI9488(3.5") display and I get an error "Touch hardware failure".
- it occurs when I tap the second target in GUI Calibrate (GUI Test LCDPanel is fine)
- I've tried two 3.5" displays, each of which work on an SC LCD Backpack v3 (uses a  MM170)
(- I've retried a 2.8" ILI9341 display which works OK)
- MM+ Basic V5.05.02
- MM.Startup has "ILI9488 2, 23, 29, 1" and I'm using the MM+ version.
- I've done Option Touch 1,3 (which was OK for my 2.8" ILI9341 displays).

Any ideas?

Cheers,

Andrew
 
morgs67
Regular Member

Joined: 10/07/2019
Location: Australia
Posts: 78
Posted: 07:00am 22 Nov 2020
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  Andrew_G said  Hi all,

I'm trying to get my Silicon Chip MM+ LCD Backpack to work with an ILI9488(3.5") display and I get an error "Touch hardware failure".
- it occurs when I tap the second target in GUI Calibrate (GUI Test LCDPanel is fine)
- I've tried two 3.5" displays, each of which work on an SC LCD Backpack v3 (uses a  MM170)
(- I've retried a 2.8" ILI9341 display which works OK)
- MM+ Basic V5.05.02
- MM.Startup has "ILI9488 2, 23, 29, 1" and I'm using the MM+ version.
- I've done Option Touch 1,3 (which was OK for my 2.8" ILI9341 displays).

Any ideas?

Cheers,

Andrew


Have you seen this?

www.thebackshed.com/forum/ViewTopic.php?TID=11419

Tony
 
Andrew_G
Guru

Joined: 18/10/2016
Location: Australia
Posts: 873
Posted: 09:13pm 22 Nov 2020
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Tony,

Six posts and you have already been nominated for "Genius Of The Year" (2020).
Thank you, thank you, thank you!

Yes I had read it - but it hadn't sunk in (properly).

It took a few attempts (getting the "Restart the Micromite" right) but with the SDO(MISO) pin not connected it works!
Touch calibrates and the SD card works (so now all I have to do is work out the different pins for MM vs MM+).

Thanks again,

Andrew
Edited 2020-11-23 07:14 by Andrew_G
 
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