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t6963c LCD + 16F877a

 
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JohnLeung



Joined: 18 May 2004
Posts: 15

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t6963c LCD + 16F877a
PostPosted: Fri Jan 06, 2006 8:35 pm     Reply with quote

I have put my code driver for 128x64 T6963C graphical LCD with a PIC 16F877a on the web. If any one interested can check www.TechToys.com.hk under the download section for details.

John Leung


Last edited by JohnLeung on Wed Feb 08, 2006 4:07 am; edited 1 time in total
The Puma



Joined: 23 Apr 2004
Posts: 227
Location: The Netherlands

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PostPosted: Sun Jan 15, 2006 7:27 am     Reply with quote

Where can i find the source code?
JohnLeung



Joined: 18 May 2004
Posts: 15

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t6963c + 16F877a
PostPosted: Sun Jan 15, 2006 2:28 pm     Reply with quote

Under the download section
jahan



Joined: 04 Apr 2005
Posts: 63

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PostPosted: Mon Jan 30, 2006 5:42 pm     Reply with quote

Hi,
Thank you for the great posting and detail information on how to create this project.

Question:
What shareware/software you've used to create the icons?

Thankx
JohnLeung



Joined: 18 May 2004
Posts: 15

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FastLCD
PostPosted: Tue Jan 31, 2006 9:56 am     Reply with quote

It is FastLCD designer by Bojan I. MICRODESIGN, version 1.2.0.

Search the web. You will find its link for download.

John Leung
Alex25



Joined: 11 Apr 2006
Posts: 2

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PostPosted: Tue Apr 11, 2006 2:09 pm     Reply with quote

Hi,
How can I draw a line between 2 pixels?
And, thanks for your library, I use it in my final
year project.
Regards,
Alex
VanHauser



Joined: 03 Oct 2005
Posts: 88
Location: Ploiesti, Romania

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PostPosted: Wed Apr 12, 2006 1:29 am     Reply with quote

Alex25 wrote:
Hi,
How can I draw a line between 2 pixels?
And, thanks for your library, I use it in my final
year project.
Regards,
Alex


Recent versions of CCS include the file GRAPHICS.C in the Drivers folder. This can be used to draw lines, rectangles, bars and circles by providing it only the pixel drawing function for the T6963. Give it a try.
JohnLeung



Joined: 18 May 2004
Posts: 15

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Draw line routines
PostPosted: Wed Apr 12, 2006 8:14 pm     Reply with quote

As long as you can draw a single pixel, it is possible to draw lines, circles etc. Visit Jharbour's web site on GBA programming

http://www.jharbour.com/gameboy/default.aspx.

Download Chapter 5 and take a look. There is a draw line routine there. Though it is based on a different complier; however, for C it would be OK. Just modify the color for Black and White ONLY for T6963C would be fine.

There are rectangles, circles, ... as well.

John Leung
Alex25



Joined: 11 Apr 2006
Posts: 2

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How Can I write/read 10 bit adc data to memory?
PostPosted: Fri Jun 02, 2006 2:38 pm     Reply with quote

Hello Again,
Thanks for answers, I solved this with another code from this forum. But still, I need RAM to use in my project. I wont use external RAM, can I use the 8kb RAM from the T6963C display for 10 bit ADC data? And how?

Thanks Again,
Regards
JohnLeung



Joined: 18 May 2004
Posts: 15

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Use ram in t6963c for storing ADC data
PostPosted: Sat Jun 03, 2006 9:56 am     Reply with quote

I think it is possible to use that ram in t6963c for storage purpose. However, just make sure the speed is fast enough and you are not panning to the ram space that has been allocated for storing the ADC data. Otherwise, you will get a funny picture. Maybe it is like a matrix window. The physical screen of 128x64 dots is just a window to the ram space anyway.

Procedure of writing ADC data to RAM is like updating an off-screen page of the LCD, and reading it back is like reading screen data back. But the speed must be slow, comparing to an actual xram.

I haven't tried it though. Update me if it works.

John
Mark Weir



Joined: 11 Sep 2003
Posts: 51
Location: New Zealand

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Wont Compile
PostPosted: Tue Aug 22, 2006 9:37 pm     Reply with quote

Hi Guys,

Just tried to download this code but I keep getting the following message:
*** Error 160 "E:\Marks D drive\PIC_LIBRARY\C_FILES\Examples\Graphic LCD\T6963CCS\glcdex1.c" Line 297(0,1): External symbol not found DisplayMode
1 Errors, 0 Warnings.

It does not compile. Can anyone spot where I have gone wrong please.

Cheers

Mark
PCM programmer



Joined: 06 Sep 2003
Posts: 20427

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PostPosted: Tue Aug 22, 2006 10:35 pm     Reply with quote

He has declared some variables with the 'extern' qualifier.
At the time he wrote his program, the CCS compiler accepted 'extern'
but ignored it. Since then (in late versions of 3.xxx, according to the
readme.txt file), it accepts 'extern'. This was in preparation for vs. 4.0.

Solution:
Find the lines where variables are declared as 'extern' and delete that
keyword only, leaving everything else in those lines unchanged.
JoKeR



Joined: 21 Oct 2006
Posts: 2

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PostPosted: Sun Oct 29, 2006 9:49 am     Reply with quote

I managed to work with 16F877A I played for little and it's great ... regards...

Now I tried to work with 18F452 but I have problems with this mcu....
I someone know what do I need to change to 18f452 works???

Since I use PORTB for command and PORTD for data
in t6963c.h
Do I need to change #byte TRISB = 0x86 to 0xF81...
I dont understand wath is #byte PORTB = 0x06.

could someone explain to me this...
JoKeR



Joined: 21 Oct 2006
Posts: 2

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PostPosted: Sun Oct 29, 2006 11:28 am     Reply with quote

resolved

Code:

#byte   PORTB   =   0xF81
#byte   TRISB   =   0xF93
#bit   PORTB0   =   PORTB.0
#bit   PORTB1   =   PORTB.1
#bit   PORTB2   =   PORTB.2
#bit   PORTB3   =   PORTB.3
#bit   PORTB4   =   PORTB.4
#bit   PORTB5   =   PORTB.5
#bit   PORTB6   =   PORTB.6
#bit   PORTB7   =   PORTB.7
#bit   TRISB0   =   TRISB.0
#bit   TRISB1   =   TRISB.1
#bit   TRISB2   =   TRISB.2
#bit   TRISB3   =   TRISB.3
#bit   TRISB4   =   TRISB.4
#bit   TRISB5   =   TRISB.5
#bit   TRISB6   =   TRISB.6
#bit   TRISB7   =   TRISB.7

#byte   PORTD   =   0xF83
#byte   TRISD   =   0xF95
#bit   PORTD0   =   PORTD.0
#bit   PORTD1   =   PORTD.1
#bit   PORTD2   =   PORTD.2
#bit   PORTD3   =   PORTD.3
#bit   PORTD4   =   PORTD.4
#bit   PORTD5   =   PORTD.5
#bit   PORTD6   =   PORTD.6
#bit   PORTD7   =   PORTD.7
#bit   TRISD0   =   TRISD.0
#bit   TRISD1   =   TRISD.1
#bit   TRISD2   =   TRISD.2
#bit   TRISD3   =   TRISD.3
#bit   TRISD4   =   TRISD.4
#bit   TRISD5   =   TRISD.5
#bit   TRISD6   =   TRISD.6
#bit   TRISD7   =   TRISD.7
vi_ni_ta



Joined: 11 Dec 2006
Posts: 7

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port c
PostPosted: Mon Dec 11, 2006 10:55 pm     Reply with quote

what is the code for TRIS c and PORT c
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