Graphical Displays with PBP3

[richard]

i don't remember doing that and there was no pin on the 20 pin connector to do that. maybe there was a jumper on the display but i thought it was a software selection.
the parallel conn is on d3 - d7 with d0 - d3 grounded
the display is off in another project and no longer available to me for confirmation

[rocket_troy]

Well, there's 2 things I never considered - (1) using the upper 4 data lines for transfer and (2) grounding the unused.
It's probably worth mentioning (for a heads up to others) the display I'm using has a serial/parallel 3 pad jumper on the back that was soldered to parallel setting as purchased. I needed to change that to serial in order to operate in serial mode. Whether that eliminates the need to pull/push the PSB pad I never bothered finding out - I just assumed the PSB pad still needed setting.

edit: just after posting that I realised that jumper is probably a direct link to the PSB pad to push or pull - duh.

Troy

[rocket_troy]

Richard,
Is it a big deal adding a character like a colon to the large font table? Working out the dot matrix for the character should be pretty straight forward, but not sure about the indexing and whatnot?

Thanks,

Troy

[richard]

you can use your own fonts Generated by MikroElektronika GLCD Font Creator 1.2.0.0
the font headers have some basic details on how to pbp-ify MikroElektronika fonts

;//Font Generated by MikroElektronika GLCD Font Creator 1.2.0.0
;//MikroElektrnika 2011
;//http://www.mikroe.com
;
;//GLCD FontName : Comic_Sans_MS10x14
;//GLCD FontSize : 10 x 14
; needs a few tweaks for pbp weaknesses
;no odd data lines allowed ,shift bytes up to even lines out , no commas on line ends
;do not add or remove any bytes
;const char bignum[] = {

[rocket_troy]

I've just tried that but I'm confused: I can pick a standard font and make something up from that using the tool, but what do I do then? Do I "export" it? Exporting, produces the matrix of hex codes for the font graphics but that's all it produces. The largenum and bigchar files you included have many lines of headers? footers? whatever... above and below the font dot matrix codes and the export button that I'm clicking doesn't appear to generate any of that and it's not really clear what those lines are?

Regards,

Troy

[richard]

have a look here
http://www.picbasic.co.uk/forum/showthread.php?t=24171

[rocket_troy]

Thanks. That link eventually lead to the TFT export option needing to be visible to click on. Alas, that appears not useful without some kind of description of what those headers represent. Intuitively I would've thought they'd be some kind of memory addressing but they can't be. The 1st column looks like the font width but no idea what the second byte represents?

Regards,

Troy

[richard]

post#1

i wrote this graphics lib to handle led dmd's [1/4 scan dot matrix displays] in mono, red/green or rgb in varing sizes up to 128x32 pixels.
it occured to me that with a little more effort it would make a general purpose graphic lib for nearly any display. so here it is.
it uses mikroe fonts that you can easily generate. the variable width fonts can be up to 23 bits wide if you like.

no guarantee 24 bit wide will be reliable either

[rocket_troy]

Okay, so fixed widths can have a wider limitation?

Troy

[richard]

no there are no fixed width fonts not that that would alter anything.
the mask is 32bits wide that is used to insert the font row data into the graphics frame memory, 23 bits font + 8 bits to allow insertion at any bit point offset + 1 clr column between chars = 32 bits. to get to 24 bits the mask would need to be 48 bits wide [needs 16 bits to allow insertion at any bit point offset], the code size would double the speed halve. any font over 23 bits wide will intrude on its neighboring chars space at some bit offsets

[richard]

Now have driver for P10 rbg Panels

here is demo for 8x 32x16 panels in a 128x32 pixel array 1200x400mm in size

[Ioannis]

Great job Richard!

Now this is a big panel, isn't it!

Seems there is an error in the word DEMO. Looks like DEMC

Ioannis

[rsocor01]

Very impressive! That looks like many hours of work. Are you using the WS2812 LEDs?