Input could be usb keyboard, otherwise the lvgl terminal app with its lvgl
keyboard works. Output only mode for this I think.
> On 17 Feb 2025, at 21:25, Tomek CEDRO wrote:
>
> Yes that would be a nice feature also for testing the LCD and should
> be easy to implement for output only mode when
Yes that would be a nice feature also for testing the LCD and should
be easy to implement for output only mode when no input is required
:-) Input would require serial port like transport, keyboard, or
on-screen keyboard that makes things a bit more complicated :-)
Tomek
On Mon, Feb 17, 2025 at 8:
Hi Tim,
Actually that could be a great idea!
Maybe even the debug and initialization message from syslog could be
printed to this fbcon interface.
BR,
Alan
On Mon, Feb 17, 2025 at 4:11 PM Tim Hardisty
wrote:
> Just thinking out loud...
>
> Would NuttX benefit from a FrameBuffer stdout driver
Just thinking out loud...
Would NuttX benefit from a FrameBuffer stdout driver (e.g. /dev/fbcon)
that allowed a pipe/dup to replace stdout, or the use of
CONFIG_NSH_ALTSTDOUT and/or CONFIG_ALTSTDERR for console output?
In my case, this is just for MCUboot messages in the case of bootloader
i
Thanks Alan - I'll see if I can find nx graphics code to repurpose and,
if not immediately obviously, I'm sure there's code out there, such the
fbtext tool you linked to.
On 16/02/2025 10:45, Alan C. Assis wrote:
Hi Tim,
I think there is not a framebuffer text in place for NuttX, but you can
Hi Tim,
I think there is not a framebuffer text in place for NuttX, but you can use
the code to handle text fonts from nx graphics to render the text directly
in the framebuffer.
For Linux some years ago I used fbtext
https://sourceforge.net/projects/fbtext/ to print a message from initrd to
let
We seem to have lvglterm in NuttX already see:
https://nuttx.apache.org/docs/latest/applications/examples/lvglterm/index.html
https://github.com/lupyuen/lvglterm/tree/main
Hope that helps :-)
Tomek
On Sat, Feb 15, 2025 at 10:07 PM Tim Hardisty wrote:
>
> What is efficient solution to just do
What is efficient solution to just do text though?
> On 15 Feb 2025, at 13:42, Alan C. Assis wrote:
>
> Hi Tim,
>
> You can create a NuttX application with LVGL and display your message or
> image.
>
> Actually you don't need to use a graphic library if you just want to write
> in the framebu
Hi Tim,
You can create a NuttX application with LVGL and display your message or
image.
Actually you don't need to use a graphic library if you just want to write
in the framebuffer, you can convert image to display directly in the
/dev/fb0
BR,
Alan
On Sat, Feb 15, 2025 at 7:45 AM Tim Hardisty
