A tft addin for pbp3

[richard]

now have the image rotation corrected , made all the x,y vars word sized (heading towards a portrait/landscape command)
the font now has lowercase , chars 32-127. and few other subtle changes
the image file can be located anywhere , have tested with a 127k pic18f87j11 and loading file past the 64k boundary is no problem

[ruijc]

Greetings Guys,

First of all, congrats to Richard and all the other that participated in this addin.
Very good work !

I ordered one of these displays to test but i wanted to know if ( maybe a stupid question but... ) there is any "minimum requirement" when selecting a pic to work with this addin like min size memory, min osc speed, etc?

I only have a 18F2520 at the moment and i'm wondering if this one will work fine.

Thanks for the feedback

Regards
Rui

[richard]

"minimum requirement" when selecting a pic to work with this addin like min size memory, min osc speed, etc?

the code takes < 6k with no images stored , so the chip needs at least that much code space + what your code requires , ram requirements are modest (but uncounted)
at this point the chip must have at least 1 mssp (spi) module
regarding osc :--- faster = better performance


your 18F2520 should be fine

[ruijc]

Thank you for the feedback Richard,

One last question...

Is there any quick way to display an individual pixel @ a given x,y coordinate?

I'm asking that for displaying graphs, for example.

Also,
Your addin has many commands. Do you have a list of all the commands available?

Regards
Rui

[richard]

Is there any quick way to display an individual pixel @ a given x,y coordinate?

this will set a pixel to the fg colour at x0,y0

            x0=  y coordinate
            y0=  x coordinate
            GOSUB drawpixel

Your addin has many commands. Do you have a list of all the commands available?

no. documenting code is my nemesis , but there are some comments in the code and I have tried to make most functions fairly consistent in their approach to the tasks at hand.

[richard]

try again got my x's and y's the wrong way round obviously

            x0=   x  coordinate 
            y0=   y  coordinate
            GOSUB drawpixel

[ruijc]

Thanks again Richard,

Awesome work you got here!

Cant wait to get the display and test it out

Regards
Rui

[visnja30]

I have several questions about the code pic18f2520_tft_demo.pbp.

how I can change color of screen wallpaper from black to yellow

how I can changes color of buttons from red to green and how to change color of outline on buttons

[richard]

On which the port and pin I connects serial communication between PC and PIC

I have used rx2/tx2 (the code could be altered to use tx1/rx1)

What is the maximum number of buttons possible to make the TFT screen.

this is the limiting factor
button_flg VAR BYTE ;1 BIT PER BUTTON make it a word to have up to 16 buttons

I tried to make a four keys and the fourth button is not working. The first three are working.

button state is not defined when buttons are created easiest solution is to insert a clear command

        INCLUDE "TFT_SPI.pbpmod"        ;glcdc
        include "tft-ILI9431.bas" 
        'INCLUDE "flash_spi.pbpmod"

        include "TOUCH_TFT.PBPMOD"      ;uncomment  to use TOUCH_TFT
        INCLUDE "font7x8.bas"
    latb=255   ;  make sure tft etc are not selected ie all cs high
    TRISA=111111
    TRISB=000011    
    TRISC=010011
    TRISD=000000
    PORTD=0000000

    OSCCON = 110000         'Internal 8 Mhz Osc 
    OSCTUNE=000000        'PLL ON

   clear

    cont=500               ;half brightness
    DEFINE OSC 32
    buff var byte[32]
    t2con=5
    PR2 = 255; 
    CCPR1L = cont>>2;             ;set pwm
    ccp1con=12|((cont&3)<<4);
    SSPCON1=$20  ;$20-21-22 works 20 IS FASTEST

how I can change color of screen wallpaper from black to yellow

the screen colour has two properties fg (foreground) bg (background)
set them as you like

use fg=bg and fillrect to clear an area

how I can changes color of buttons from red to green and how to change color of outline on buttons

button_scheme var word[4] ; [background,text,border,animated (background or border) ]

defaults
button_scheme[0]= $1f
button_scheme[1]= $0
button_scheme[2]= $7ff
button_scheme[3]= $ffff

buttons can have different animations too
button_action.0[1]=1 ;flash text for this button1
button_action.0[2]=0 ;flash outline for this button2 ; default action

[visnja30]

Why I can not write lovercase letters only capital letters work?When I write lovercase letter I got only a bad piksel on screen.
Buttons now work excellent.

[richard]

are you using the font that has lowercase chars in it ?

the first font has chr 32 to 90 post#54
the second has chr 32 to 127 post#67