FT800

mototest2 · Joined: 24 Dec 2006 Posts: 53

OK, problems resolved, Thanks ,
I try all demos
but also don't work with Xmega demo0
widged "points", on display I don't have any point
widged "cube" display only one line
widged "Text_VGA" ,"Bar_graph" don't work

Now this is not important for me, but maybe here are errors, or I don't understand it correctly

Tell me one thing yet, which software you use to converting jpg file into data lines (as in demo FT800_load_image), because LCD converter is to small images

Bob

albertsm · Joined: 09 Apr 2004 Posts: 5920 Location: Holland

there are some issues for xmega. they have been resolved.
use a vport for the CS pins of the xmega and not a normal port pin. That should solve the problem.

Also, make syre vertex2ii looks like this :

'------------------------------------------------------------------------------------------------------------
Sub Vertex2ii(bystack x as Word , Byreg r18 As Word , Byreg r17 As Byte , Byreg r16 As Byte)
'------------------------------------------------------------------------------------------------------------
!ld r21,y+
!ld r20,y+
Cmd32 _vertex2ii(___WTMPB , r18 ,r17 ,r16)
' ^^^^^^
End Sub ' Vertex2II

mototest2 · Joined: 24 Dec 2006 Posts: 53

now "CUBE" works good, but "Points" still don't work

albertsm · Joined: 09 Apr 2004 Posts: 5920 Location: Holland

and you did use a vport for the CS pin ?

mototest2 · Joined: 24 Dec 2006 Posts: 53

No, don't understand how implement this Vport, CS is connected to port C.4

albertsm · Joined: 09 Apr 2004 Posts: 5920 Location: Holland

have a look at config vport. and then use for example port0 for cs.

mototest2 · Joined: 24 Dec 2006 Posts: 53

Hi

I have one problem yet.
In my project I use cmdtoggle , I use some buttons which works ok, but button toggle schwitches when I press on display in various places not only on button toggle
and when I press toggle, then blink one time all texts on other buttons
I use in project gauge also near toggle, is possible that gauge is too close and generate problems ?

I use function Read_sfk = Read_keypad() for detect toggle switch (from demo keyboard)

I noticed that the sequence of placing the items on display is important,
when the toggle switch I gave at the end of the drawing on display ,then now other button is switched after pressing on display in every place...
but different buttons works incorretly if on display is more components

Bob

PeterM · Joined: 09 Jun 2008 Posts: 118

Bob

Maybe you can make a small demo so we can see the problem?.

Just remember you need to do initial LCD Cal accurate otherwise
if you have many objects close together you may get false selections.

Use a small stylus and not something that is very thick.

twenty13 · Joined: 05 Jul 2011 Posts: 12

Hi,

I have a similar issue. The touch points are not coordinated with the buttons i have defined. But every time when I use "cmdcalibrate" I end up with a blank white screen. So, I can't really use the calibration routine. Also, is there a way to store the calibration constants and pre load them so that it is not necessary to execute the calibration routine every time at start up? Thanks in advance.

mototest2 · Joined: 24 Dec 2006 Posts: 53

I have enabled calibration after every programming (in file ft800.inc)
Const Lcdcal = 1
it enought ,or not ?

ps.
I use a small stylus

twenty13 · Joined: 05 Jul 2011 Posts: 12

Thanks Mototest2. I missed that one. Will give it a try when new board Gameduino2 arrives.

mototest2 · Joined: 24 Dec 2006 Posts: 53

here is code which make problems, I think calibration is good
I use 4,3" display 480x270px

PeterM · Joined: 09 Jun 2008 Posts: 118

twenty13

Note: (after you do Const Lcdcal = 1) if you ever want to force an LCD cal

1) Before you powerup/reset your LCD/board touch or hold the stylus anywhere on the LCD area
2) Now do the powerup/reset, and release the stylus
3) now you should be prompted for the LCD Cal.

As for the CmdCalibrate blank screen, sometimes if it won't boot properly it may requirea a cold boot
by turning the power off/on and not just a reset but regardless if in doubt post a small demo.

mototest2 · Joined: 24 Dec 2006 Posts: 53

Thank you for informations, calibration work good.
try my demo with gameduido you will see problem, all buttons work ok, but if you touch on dial gauge, then also work button start/stop.

I made this demo also with software visual TFT from Mikroelektronika, some months ago and I had identical problem,
I resolved it with command DrawScreen(@menu) (updatescreen in bascom) after creating every graphic element on display,
but in bascom is other construction creating graphic elements

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

I was playing with your demo after I replied to twenty13

I did notice the Cmdtoggle On/Off was been affected by the Start/Stop button
BUT I then I got my fine point Stylus and did a new LCD Cal
it worked FINE, I could not make the Start/Stop button affect the On/Off.
I tested this using the Gameduino2 board.

Can you try the LCD cal again trying to tap in the center of the circle
as close to the centre as possible?. Personally I have never had an issue but maybe some
registers need adjusting.

Looking in the FT800 Programmers Guide, see page 60,61 and 62
Reg_Touch_RZThreshold, Reg_Touch_OverSample, Reg_Touch_Settle etc.

One small thing I noticed, when you select the Start/Stop button
is you drawn the LED using CmdDial, seems an overkill.
Below is your coded moded with PointSize if you want to try it.