On Mon, 6 Jan 2020 10:29:54 -0800 (PST), in
gmane.comp.hardware.beagleboard.user
[email protected] wrote:
> PRU gpio pins). VGA would be best, because then the end user can choose
>a large screen (instead of a small LCD).
A "VGA" DISPLAY is NOT a "text mode display" -- it is the VGA adapter
card in the computer that contains the logic to accept text (ASCII) and
render it using built-in glyphs, but the display itself is still graphical,
being continuously fed with RGB and sync signals to refresh the display.
https://en.wikipedia.org/wiki/Video_Graphics_Array
So... I don't see anything feasible... You'd be using something to
render a low-resolution frame buffer, and somehow transferring that frame
buffer to the actual display device (a slow process if being done in
software <G>). In short, duplicating what the HDMI/LCD framer is already
doing.
Probably faster to just hook a VT100 to a serial port and set it to 56
or 115 kbps. Let the terminal handle the rendering of the text.
--
Dennis L Bieber
--
For more options, visit http://beagleboard.org/discuss
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