LED (VFD) Displays in LibreELEC

narcotic · August 5, 2018 at 1:23 PM

Thank you so much @The Coolest for helping me set my screen on my T95Z 3GB 1GB Lan.

**wrxtasy** · August 5, 2018 at 3:32 PM

Quote from RayW

I would dearly love to have either the display blanked or better just diplaying dots so you can see the box is powered on, or even saying "kodi" would be nice, whenever booted into LE.

Have a look at the LE openVFD Addon configurations. There is all sorts of stuff to adjust.

**The Coolest** · August 5, 2018 at 3:41 PM

Quote from wrxtasy

Have a look at the LE openVFD Addon configurations. There is all sorts of stuff to adjust.

I think he's saying that the display is stuck at "boot", which normally means the vfd driver has not been started or the wrong vfd.conf was used.

vvd214 · August 6, 2018 at 10:02 AM

My Box is Enybox X1 (S905X, 2GB RAM, 16GB)

Running LE 8.2.4.2 and installed openvfd-1.0.1, DTB in Libreelec is: gxl_p212_2g.dtb

but VFD display isn't working. I think, my vfd chip is CS1628EO doesn't support.

Please add support. Thanks

Android DTB files

Box and VFD image here: https://imgur.com/a/zoimbuc

**The Coolest** · August 6, 2018 at 11:13 AM

vvd214

I don't know what version of the vfd driver wrxtasy uses in 8.2.4.2, but in 8.2.4.1 he wasn't using the driver I adapted, so it won't work at all without a per-box DTB configuration.

Also, the dtb file you posted is empty, you may have to extract it from Android directly.

Try running the following commands and post the URLs.

Code

dmesg | paste
systemctl status openvfd | paste
(if the above didn't work try this)
systemctl status fd628 | paste

vvd214 · August 6, 2018 at 3:57 PM

@The Coolest

I re-install Coreelec 8.95 (with dtb: gxl_p212_2g.dtb) and OpenVFD services, but sill black display

Here is my Android _DTB

dmesg - http://ix.io/1jmg

systemctl status openvfd - http://ix.io/1jmj

Please, have a look. Thanks

**The Coolest** · August 6, 2018 at 9:35 PM

Quote from vvd214

@The Coolest

I re-install Coreelec 8.95 (with dtb: gxl_p212_2g.dtb) and OpenVFD services, but sill black display

Here is my Android _DTB

dmesg - http://ix.io/1jmg

systemctl status openvfd - http://ix.io/1jmj

Please, have a look. Thanks

Display More

Thanks. Try the attached vfd.conf.

vvd214 · August 7, 2018 at 5:36 AM

@The Coolest , thanks for your support. I try replace your file, but vfd display still black. here is dmesg - http://ix.io/1jvW

systemctl status openvfd - http://ix.io/1jvx

**The Coolest** · August 7, 2018 at 6:51 AM

vvd214 You need to reboot the box after replacing the vfd.conf file. From the log it looks like you're still using the previous vfd.conf.

vvd214 · August 7, 2018 at 7:23 AM

I did reinstall service OpenVFD from Coreleec Repository, replace old /storage/.config/vfd.conf with a new one from you , and reboot, still black display. Did I missed something

dmesg - http://ix.io/1jwh

systemctl status openvfd - http://ix.io/1jwi

**The Coolest** · August 7, 2018 at 8:23 AM

From dmesg:

Code

[   15.935873@1] OpenVFD: vfd_gpio_clk:        #0 = 0x00; #1 = 0x44; #2 = 0x00; 
[   15.935885@1] OpenVFD: vfd_gpio_dat:        #0 = 0x00; #1 = 0x43; #2 = 0x00; 
[   15.935891@1] OpenVFD: vfd_gpio_stb:        #0 = 0x00; #1 = 0x45; #2 = 0x00; 
[   15.935898@1] OpenVFD: vfd_chars:        #0 = 0x04; #1 = 0x03; #2 = 0x02; #3 = 0x01; #4 = 0x00; 
[   15.935907@1] OpenVFD: vfd_dot_bits:        #0 = 0x00; #1 = 0x01; #2 = 0x02; #3 = 0x03; #4 = 0x04; #5 = 0x05; #6 = 0x06; 
[   15.935913@1] OpenVFD: vfd_display_type:    #0 = 0x01; #1 = 0x00; #2 = 0x00; #3 = 0x00; 
[   15.935921@1] OpenVFD: "banks" chip found.    base = 155, pin count = 101, pin = 68, offset = 223
[   15.935926@1] OpenVFD: "banks" chip found.    base = 155, pin count = 101, pin = 67, offset = 222
[   15.935931@1] OpenVFD: "banks" chip found.    base = 155, pin count = 101, pin = 69, offset = 224
[   15.938432@2] OpenVFD: Select FD628* controller
[   15.938475@2] OpenVFD: SPI 3-wire interface intialized

Display More

You're not using the vfd I attached in this post...

LED (VFD) Displays in LibreELEC

Make sure that you put it into Configfiles folder, and rename it to 'vfd.conf'

vvd214 · August 7, 2018 at 9:20 AM

@The Coolest , I'm sure, I put your vfd.conf to /storage/.config/ folder and install service OpenVFD (ver 1.0.2)from Coreleec Repository. Maybe OpenVFD service doesn't read config in /storage/.config/vfd.conf, and read from somewhere else

**The Coolest** · August 7, 2018 at 9:57 AM

vvd214 What does

Code

cat /storage/.config/vfd.conf | paste

produce? It's highly unlikely that it's trying to read the vfd.conf from somewhere else.

The Kodi service can't affect the dmesg output from openvfd module, what you see there is what is read from vfd.conf. And currently what I'm seeing is that you're using the vfd.conf file narcotic posted.

vvd214 · August 7, 2018 at 1:42 PM

@The Coolest , sorry I have a mistake, I check again, I did installed service.fd628 before, and I already remove it.

Now only OpenVFD service installed , still black display.

here we are

dmesg - http://ix.io/1jxx

systemctl status openvfd - http://ix.io/1jxy

cat /storage/.config/vfd.conf - http://ix.io/1jxz

**The Coolest** · August 7, 2018 at 1:59 PM

vvd214

OK, now there's some progress.

Looks like there is now a conflict with pins allocation. I'll look into it later today if I have time or tomorrow.

This will probably require a dedicated DTB for this box.

**The Coolest** · August 7, 2018 at 4:34 PM

vvd214

OK try it with the attached dtb. Put on root of SD card and rename to 'dtb.img', like usual.

vvd214 · August 8, 2018 at 9:30 AM

@The Coolest , great job, not perfect but It's working now. Here is new status:

dmesg - http://ix.io/1jcb

systemctl status openvfd - http://ix.io/1jcc

Display start with picture 1 , then move to picture 2 and finish with picture 3

Please help me fix it

**The Coolest** · August 8, 2018 at 9:56 AM

We should probably take this to PM, as there's no point in cluttering the forum with our dialogue

vvd214 Odd.

I suggest you disable the Kodi openvfd service for testing purposes.

SSH into the box, kill the OpenVFDService process.
Then start it again like so:

Code

OpenVFDService -dm &

This will run the service in demo mode, and should look something like this:

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If you could take a video of what happens on screen, it would be great.

LED (VFD) Displays in LibreELEC

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