A tft addin for pbp3

[richard]

Is it possible to make that when i press a button and hold pressed the counter increase his value throughout the whole period when it pressed

yes good idea , I have added an auto repeat property to buttons

  button_rpt.0[3]=1             ;button3 auto rpt

[Aussie Barry]

Hi Richard,

I am having some issues compiling your TFT_Demo program and hope you can steer me in the right direction.
I am using Microcode Studio 5.0.0 5 and PBPX 3.0.7.4

When I first compile I get a "Syntax Error (195)". The line of code is "fillcircle 60 , 60 , 20"
I have looked through the include files and cannot find a USERCOMMAND for "fillcircle". What am I missing?

Attempting to move on, I commented out the offending fillcircle line of code and tried to compile again.
Now I get four ASM ERROR message "Address label duplication or different in second pass".
(Z001D9) (Z001DA) (Z001DB) (Z001DC)

I am very keen to get my new TFT Touchscreen operational so any advice on how to correct the above issues would be greatly appreciated.

I have attached all relevant files (main program, includes etc.) for your reference.

Cheers
Barry
VK2XBP

[richard]

hi barry


the address dup messages come from having coff file generation turned on when using dt_ints , don't know why ,wish it wouldn't
see the attached screen shot to remedy that

the syntax error i think comes from not using the latest tft-spi.pbpmod file

I have uploaded the latest just incase I stuffed up

[richard]

I did stuff up , seems I forgot to upload the latest version with fillcircle command in it .
apologies to all,

[Aussie Barry]

Thanks Richard - that did the trick!
Everything compiles and programs.
Now to breadboard it and make it work

Cheers
Barry
VK2XBP

[Aussie Barry]

Hi Richard,

I have had a small amount of success getting this thing going but still having a few problems.
Firstly, your .pdf circuit diagram appears to have another mistake (apart from the MCLR issue)
You show the LED connection on J2 as being Pin 9 however I believe it should be Pin 8 - or at least that's what is printed on the PCB silkscreen.
I made the necessary adjustments but still nothing. I am getting a nice 50% duty cycle PWM signal (~7.8kHz) on CCP1.
In frustration I connected the LED connection (J2 Pin 8) to the wiper of a 10k pot and adjusted it between 0V and 3.3V.
Once I got to around 3V the screen came to life - or at least half of it did
I think I might have a dodgy TFT screen.
I can see the elapsed timer counting and some of the reset button but most of the right side of the screen is scrambled with a big black ovoid shape in the middle.

Looks like I need to do another eBay purchase but don't really want to have to wait 3-4 weeks for it to arrive!

Thanks for all your help thus far. I will be in touch again once I have a new screen to play with.

Cheers
Barry
VK2XBP

[richard]

your right about the schematic I have uploaded a correct version , I have replaced the transistor with a pch mosfet (saves two resistors) but it still loses a little brightness and is no better than the transistor version

most of the right side of the screen is scrambled with a big black ovoid shape in the middle.

I had similar issues with mine , turns out the sil connector was very poorly soldered a bit of rework fixed it