Displaying the photo by using TFT LCD

Baram · **Posted:** Wed Apr 11, 2007 3:54 am

Theseday, I am studying AT91SAM7. So I am using the board made in Korea.

In this system, I ported FAT file system from http://elm-chan.org/fsw/ff/00index_e.html

And I attached SD Memory 1GB to store photos.

I don't have IAR Compiler so all of the sources are complied by WinARM.

If anyone want to see the sources, I can post it...

I want to know more about this controller. ^^.

kosthala · **Posted:** Thu Apr 19, 2007 8:03 pm

Hello,

This is really a very impressive project.
What is the image format you use?

Is it possible to PM me the source?

Thanks in advance.

Kostas.

Baram · **Posted:** Mon Apr 23, 2007 2:09 am

kosthala wrote:

Hello,

This is really a very impressive project.
What is the image format you use?

Is it possible to PM me the source?

Thanks in advance.

Kostas.

Sure. I can send you sources of it.

I used 16bit RGB format.

It is so easy to display bmp files on the LCD.

Because Writting image datas into the display buffer of LCD is the way to dispaly on the LCD.

If you want me to send you the sources, please email me and then I will reply with sources.

kosthala · **Posted:** Mon Apr 23, 2007 7:34 am

Well, actually i would like to know if the photos are in their original format in
the sd card (bmp, jpeg etc.), or if you have convert them with some kind of software.

kosthala · **Posted:** Mon Apr 23, 2007 7:35 am

Well, actually i would like to know if the photos are in their original format in
the sd card (bmp, jpeg etc.), or if you have convert them with some kind of software.

Baram · **Posted:** Mon Apr 23, 2007 9:14 am

kosthala wrote:

Well, actually i would like to know if the photos are in their original format in
the sd card (bmp, jpeg etc.), or if you have convert them with some kind of software.

I converted 24bit BMP file into 16bit BMP file by Photoshop program.

Well, it will not need to use that program if you include converting algorithm that convertes 24bit into 16bit in the at91sam7 program itself.

I could access FAT bmp files in SD Card directly because I ported FAT filesystem.

kosthala · **Posted:** Mon Apr 23, 2007 10:11 am

I got the idea.
Can you send me the sources? My mail is kosthala@yahoo.gr

Thank you very much.

Baram · **Posted:** Mon Apr 23, 2007 10:43 am

kosthala wrote:

I got the idea.
Can you send me the sources? My mail is kosthala@yahoo.gr

Thank you very much.

I have sent the source to you.

Thanks.

Nordin · **Posted:** Tue May 29, 2007 10:55 am

Hi Baram,

I've seen you have experience with Chan's FatFS, which I'm using it too. But I have some difficulties porting it to my microcontroller at91sam7A3. I'm using the MCI interface (actually an SPI with additional features) instead of SPI.

The problem I have is the ff.c (the fat filesystem), Chan uses a certain way of reading bytes from an array, like this:

Code:

#if _MCU_ENDIAN == 1   /* Use word access */
#define   LD_WORD(ptr)      (WORD)(*(WORD*)(BYTE*)(ptr))

or

Code:

#if _MCU_ENDIAN == 2   /* Use byte-by-byte access */
#define   LD_WORD(ptr)      (WORD)(((WORD)*(BYTE*)((ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))

So I'm very curious how you do that.

When I try to write a txt-file in an SD card, on my pc I can see a file with no extension and the name of the file is not correct. So I'm happy it does something, but somewhere it goes wrong.[/code]

ekremhbx · **Joined:** Tue May 29, 2007 7:13 pm **Posts:** 1

hello your project is very interesting for me too

I am working at91s256 so and s65 lcd can you send me your code
and your lcd info

regards

mail : info@parkemlakofis.com

censored hacibektasoglu

istanbul

migod · **Joined:** Tue Aug 14, 2007 3:01 pm **Posts:** 1

Hi Baram,

cool project

What kind of TFT display did you use (e.g. dimensions)? What is the controller family of LCD?

Regs.,
--
migod

zainka · **Joined:** Thu Jun 29, 2006 2:22 pm **Posts:** 12

Nice project... Have you considered upploading it to the projects section?

docsale · **Posted:** Fri Oct 12, 2007 5:12 pm

Hi,

The project is great! It woulb be very interesting for me if you could send me the source code!
my mail: francesco.saletti@alice.it

Thanks!

armexpert · **Joined:** Mon Oct 29, 2007 1:53 pm **Posts:** 3

Hi,
Very nice project, I would like to know about TFT controller that is available with you.

charlieking · **Joined:** Thu Jan 03, 2008 9:57 pm **Posts:** 1

hi, very nice project. I'm very interested in your source code. Please email it at charlie_cheny@yahoo.ca. Thanks!

Displaying the photo by using TFT LCD

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