A tft addin for pbp3

[visnja30]

Is it possible that I destroy my TFT-display because my power supply for PIC18f4520 is 5volt?Communication between PIC and ILI9341 is on 5 volt.

[richard]

these displays are 3.3v devices . the only pin that is different is the vcc pin that leads to a 3.3v ldo regulator . my displays function ok with vcc =3.3v . one has a jumper to bypass the regulator if desired but this has not been necessary .
see schematic
ps the schematic shows the mclr pullup resistor connected to gnd , this is wrong it should be vcc

[visnja30]

OK,it works now.I replace a voltage regulator on EASYPIC 5 board from 5V to 3.3V and it works.
What I need to do to send JPG picture to TFT display?

[richard]

What I need to do to send JPG picture to TFT display?

start about post#41 I have provided some python code to convert arduino c code files generated by the "UTFT ImageConverter565.exe PGM " TO a pbp compatible format.
be aware that a 200x200 pixel image takes 80,000 bytes of flash memory. an external flash chip is more practical for this sort of thing , I have provided code to do that also

[richard]

some more ways to define and animate buttons

[visnja30]

I create a six buttons on LCD and one button must work like a push button.

When I push the button, the LED which is connected to PORTD.0 must light all the time as the button is pressed.
When I release the button LED must go off.

Is it possible to create something like that?

[richard]

when a repeat enabled button is "held" it returns a BUTTON_STATE of 5
this can be the led "on" cue

when the button is "released" it returns a BUTTON_STATE of < 5 (1 or 2 )
this can be the led "off" cue

LOP:
    GOSUB  CK_BUTTON
    IF      BUTTON_STATE[0]   THEN
       IF      BUTTON_STATE[0] >4 then
           PORTD.0=1
       else
           PORTD.0=0 
           BUTTON_STATE[0]=0
       endif   
    endif
goto lop

[visnja30]

when I press a button and hold it the led diode is on.That is OK.when I release a button led is off.
Is it possible to make that when the button is pressed and hold, led is on, and when I connect 5V to pin PORTD.7 then led is off.
I dont now how to explain a problem.
When I press a button window is opening and when it is full open then he must stop .Stop signal is connect to PORTD.7



'-----------------------OPEN WINDOW ------------------------------------------------------
IF BUTTON_STATE[2] THEN
IF BUTTON_STATE[2] >4 then
PORTD.0=1
else
PORTD.0=0
BUTTON_STATE[2]=0
endif
endif

[richard]

you could do this but ..............
a big if

is the portd.7 signal is a limit switch or an emergency stop switch ?... if it is then its best done in hardware a hung loop here could cause fire/smoke/damage or hurt


'-----------------------OPEN WINDOW ------------------------------------------------------
IF BUTTON_STATE[2] THEN
IF BUTTON_STATE[2] >4 then
if PORTD.7 ==0 then
PORTD.0=1
else
PORTD.0=0
endif
else
PORTD.0=0
BUTTON_STATE[2]=0
endif
endif