[Guide] ili9341 SPI TFT Screen on Retropie
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
No problem.
If you can now type
dmesg
This will give you a big list of things that have happened on you pi. Scroll through and find the fbtft ones, see if there are any errors listed
If you can now type
dmesg
This will give you a big list of things that have happened on you pi. Scroll through and find the fbtft ones, see if there are any errors listed
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
-
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Sorry for asking now, I feel stupid.
My screen had VCC instead of VIN, so 3.3 v wasn't enough power.
It works now, thanks for your help and your great tutorial!
My screen had VCC instead of VIN, so 3.3 v wasn't enough power.
It works now, thanks for your help and your great tutorial!
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
I'm glad you managed to get it running! Some screens have been tweaked to run on 5v for arduino use
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
- Helder
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
What screens are those? Must be the ones with the backboards right?
Chat with me and other members On Discord
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We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.
Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.
Helder's Game Tech Website
We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Yeah, some of those red boards have 3v regulators on them. The actual screen itself will only be 3v
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
- tronicgr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
I followed the guide and got it working.
I made two videos for comparison next to the HDMI display running at same time.
It was slow FPS at first:
https://youtu.be/_bfKeoI0AFg
But then after tweaking the SPI transfer setting its almost as fast as the HDMI screen now:
https://youtu.be/3nxJnrAK5JU
Thanks
Thanos
I made two videos for comparison next to the HDMI display running at same time.
It was slow FPS at first:
https://youtu.be/_bfKeoI0AFg
But then after tweaking the SPI transfer setting its almost as fast as the HDMI screen now:
https://youtu.be/3nxJnrAK5JU
Thanks
Thanos
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
great news!!! Thats a good way to demonstrate the speed differences.
I have had a little play with the debug options. If you add "debug=32" at the end of the fbtft.conf file, you can see how fast the screen is actually updating by running "dmesg". turns out the true speed of the screen is only actually about 30fps. the fact that our eyes only need about 24fps and that the TV's we used to play these games on were only 30fps, means that its more than ample
I have had a little play with the debug options. If you add "debug=32" at the end of the fbtft.conf file, you can see how fast the screen is actually updating by running "dmesg". turns out the true speed of the screen is only actually about 30fps. the fact that our eyes only need about 24fps and that the TV's we used to play these games on were only 30fps, means that its more than ample
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
- abrugsch
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- abrugsch
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
the biggest issue with the refresh rate and emulators is the tearing from a slight mismatch since a lot of old arcade games ran nice an snappy at 50 or 60 Hz
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
ah that makes sense. those coins have to go towards buying something extra!
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
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