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Gameboypi / SPW

Gameboy SP Raspberry pi board
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Upgraded display driver #42

Open ssjowowo opened 4 years ago

ssjowowo commented 4 years ago

I found that rpi-fbcp is having some performance issues, so I replaced the one bundled in your image with the fbcp-ili9341 one found here: https://github.com/juj/fbcp-ili9341

The difference is night and day as it provides very smooth transition between frames and removes that choppy framerate in rpi-fbcp when playing games.

If anyone is interested read below.

You can follow the readme for build instructions. The cmake command that gave me the best results is the one below:

cmake -DSPI_BUS_CLOCK_DIVISOR=6 -DILI9341=ON -DGPIO_TFT_DATA_CONTROL=24 -DGPIO_TFT_RESET_PIN=25 -DSTATISTICS=0 ..

Once you compile, just replace this line in /etc/rc.local with the binary out file:

#/usr/local/bin/fbcp &
/home/pi/fbcp-ili9341/build/fbcp-ili9341 &

NOTE: I also have an overclock of 800mhz which helps things a bit

Gameboypi commented 4 years ago

I'll take a look at it, Tyvm!!

pep3175 commented 4 years ago

I found that rpi-fbcp is having some performance issues, so I replaced the one bundled in your image with the fbcp-ili9341 one found here: https://github.com/juj/fbcp-ili9341

The difference is night and day as it provides very smooth transition between frames and removes that choppy framerate in rpi-fbcp when playing games.

If anyone is interested read below.

You can follow the readme for build instructions. The cmake command that gave me the best results is the one below:

cmake -DSPI_BUS_CLOCK_DIVISOR=6 -DILI9341=ON -DGPIO_TFT_DATA_CONTROL=24 -DGPIO_TFT_RESET_PIN=25 -DSTATISTICS=0 ..

Once you compile, just replace this line in /etc/rc.local with the binary out file:

#/usr/local/bin/fbcp &
/home/pi/fbcp-ili9341/build/fbcp-ili9341 &

NOTE: I also have an overclock of 800mhz which helps things a bit

Hi, very interesting ! Are you able to run gba games ?

ssjowowo commented 4 years ago

Yes gba runs ok. Tested almost all emulators that rpi 0 can run and found no issues

pep3175 commented 4 years ago

@ssjowowo Great. I'll give it a try. That is my main issue with this build. Thanks for your upgrade.

gambino37 commented 4 years ago

Wow, the juj driver is a night and day difference!

mousemat86 commented 4 years ago

adding this for reference

sudo apt-get install cmake
cd ~
git clone https://github.com/juj/fbcp-ili9341.git
cd fbcp-ili9341
mkdir build
cd build
cmake -DSPI_BUS_CLOCK_DIVISOR=6 -DILI9341=ON -DGPIO_TFT_DATA_CONTROL=24 -DGPIO_TFT_RESET_PIN=25 -DSTATISTICS=0 ..
make -j
sudo ./fbcp-ili9341
stanyertom commented 4 years ago

Is this installed onto the image now or do I have to run these commands?

Eilermoon commented 1 year ago

Hey guys, hopefully someone has some advice for this. I did a fresh new install of RetroPi and went through this screen driver process. I can get the screen to work going through these commands, but my rc.local file isn't working on boot, the screen stays white. Any ideas why this would be? I added /home/pi/fbcp-ili9341/build/fbcp-ili9341 & and commented out the #/usr/local/bin/fbcp & line in my rc.local file.

ssjowowo commented 1 year ago

can you please paste your rc.local contents? if you run sudo /home/pi/fbcp-ili9341/build/fbcp-ili9341 do you get the display to work?

Eilermoon commented 1 year ago

I've actually got it going now after doing a fresh install! I cleared my overclocking settings in my /boot/config.txt file, that must've been too much?

I'm currently fighting with it constantly restarting though, not sure why. It will boot into emulatorstation, then the screen will go white after a few minutes and boot up again

Eilermoon commented 1 year ago

can you please paste your rc.local contents? if you run sudo /home/pi/fbcp-ili9341/build/fbcp-ili9341 do you get the display to work?

To answer your question though, it looks like I screwed up the install somehow. Not sure how, but a fresh install fixed it. and after removing the overclocking, the screen was legible again - it was previously all smudged?

Eilermoon commented 1 year ago

I also would love to add the -DLOW_BATTERY_PIN command to show a battery low icon when it detects a low voltage on a pin. I'm note sure what pin to use though with this build, anyone have any ideas?

ssjowowo commented 1 year ago

Glad you got it working. Overclocking usually causes issues with the fbcp-ili9341 driver (https://github.com/juj/fbcp-ili9341#the-display-works-for-some-seconds-or-minutes-but-then-turns-all-white-or-black-or-freezes).

As for a spare GPIO, if you are not using the I2C interface, you can use the SDA and SCL test pads on the pcb. These are mapped to GPIO2 and GPIO3 respectively

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