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hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
3.7k stars 1.17k forks source link

running rpi-rgb-led-matrix on picore #758

Open bduong06 opened 5 years ago

bduong06 commented 5 years ago

Hi Henner,

I just want to report that running your library on picore results in a perfect frame. No flickering or artifacts.

I had previously tried with raspberry-stretch lite and the realtime version, but needed the --led-slowdown-gpio=3 in order to get rid of the random artifacts. However, even with this setting I still got intermittent flickering.

I managed to install and setup a beta version of picore (10.x), and now everything is perfectly display without the need for the --led-slowdown-gpio setting.

I just thought you would like to know.

Thanks, for your library.

Bao.

hzeller commented 5 years ago

Thanks, that sounds interesting; I'll have to try that. --led-slowdown-gpio is usually needed because the gpio pins are too fast for the LED matrix, so this is a bit worrisome that you don't need it as it would imply that the GPIOs might be slower with PiCore. Or maybe it just improves timing gaps ? Will have to test.

hzeller commented 5 years ago

Do you have a link to the picore beta 10.x version image you are using @bduong06 ?

bduong06 commented 5 years ago

Sorry, I didn't include any details. If you are using 3B+, you will need to use 10.x: https://distro.ibiblio.org/tinycorelinux/10.x/armv7/test_relases/RPi/

However, if you have the others, you should use the 9.x version. https://distro.ibiblio.org/tinycorelinux/9.x/armv6/releases/RPi/

If you can, use the 9.x version, as it will save you the trouble of having to build a lot of stuff from source.

Bao.

gioreva commented 5 years ago

Goood, can you help me to install ?

tce-load –wi git tce-load -wi make tce-load -wi nano tce-load -wi gcc tce-load -wi libavcodec-dev (Do not exist) tce-load -wi libavformat-dev (Do not exist) tce-load -wi libswscale-dev (Do not exist)

Missing other, it do not compile the library and WIRINGPI

gpulido commented 5 years ago

@bduong06 I'm trying to compile the library on the 10.x arm7 version. I'm in the same status as @gioreva It do not compile the library, would you mind provide some help to make it work on piCore 10 in a raspi 3b+? Thank you

bduong06 commented 5 years ago

Sorry Gioreva and Gabriel, my gmail has these messages filtered. I just stumbled on these today.

You need to build most of the libraries from scratch. Some of them you can get it from the previous version via wget. However, you can get a version from picoreplayer that's already all built for you. You can download it from here - https://www.picoreplayer.org/main_downloads.shtml. You just have to disable the player functionality. You just need to disable the sound and disable the webserver. There is even a realtime kernel version available. I have been using the realtime kernel version with no problems. The nice thing about picore is the os is loaded in ram so you never have to worry about shutting it down.

picoreplayer will get you up and running as soon as possible. However, since this is fairly niche, I would suggest you be self sufficient. If you want to go the self sufficient route, let me know. I will make sure I see these messages.

Bao.

On Thu, May 23, 2019 at 12:35 PM Gabriel Pulido notifications@github.com wrote:

@bduong06 https://github.com/bduong06 I'm trying to compile the library on the 10.x arm7 version. I'm in the same status as @gioreva https://github.com/gioreva It do not compile the library, would you mind provide some help to make it work on piCore 10 in a raspi 3b+? Thank you

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/hzeller/rpi-rgb-led-matrix/issues/758?email_source=notifications&email_token=AF6GRO47R277TBWXZTWSMBDPWYUK5A5CNFSM4GWJ6ESKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODWBDW4A#issuecomment-495074160, or mute the thread https://github.com/notifications/unsubscribe-auth/AF6GRO3V3NLSVBYEQWXKSI3PWYUK5ANCNFSM4GWJ6ESA .

gpulido commented 5 years ago

Hello, Thank for the information. I was capable of building it using a combination of libraries from 9.0 arm7 and a repository I found (I will update with the link asap) where all the libs where compiled.

Does the realtime kernell behaves better in this case?

Maybe we could think on put together the bare minimun to build & run the @hzeller library so it can be used as reference.

ca1ebd commented 4 years ago

Hi Henner,

I just want to report that running your library on picore results in a perfect frame. No flickering or artifacts.

I had previously tried with raspberry-stretch lite and the realtime version, but needed the --led-slowdown-gpio=3 in order to get rid of the random artifacts. However, even with this setting I still got intermittent flickering.

I managed to install and setup a beta version of picore (10.x), and now everything is perfectly display without the need for the --led-slowdown-gpio setting.

I just thought you would like to know.

Thanks, for your library.

Bao.

Hi @bduong06, I'd like to get this set up on piCore, can you give a brief overview of the steps you took to get the library running on piCore? (I'm using the piCorePlayer RT image btw)

Thanks, Caleb