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aml chirayath
Associate II
February 21, 2017
Question

Shall I interface 7'' LCD display with STM32F103VCT6?

  • February 21, 2017
  • 15 replies
  • 4726 views
Posted on February 21, 2017 at 06:32

I need to interface AT070TN92 7' LCD display (Driver element: a-Si TFT active matrix, Resolution: 800 × 3(RGB) × 480) with STM32F103VCT6 controller. The display have a back-light driver board. Is it possible to interface the display directly to the controller with out any LCD controller ICs. Here attaching the datasheet of display AT070TN

Thank you

#stm32cubemx-lcd #stm32 #stm32f103vct6 #stm32-tft-lcd-controller #tft-lcd #stmcubemx

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15 replies

T J
Senior III
February 21, 2017
Posted on February 21, 2017 at 15:26

No, sorry,

this LCD has a RGB parallel interface. you need a pixel rate of 20-46MHz and 8 red, 8 green and 8 blue pins.

these are not available on this processor.

some LCD modules accept the 8080 /6800 mode parallel interface, but not this one.

aml chirayath
Associate II
February 22, 2017
Posted on February 22, 2017 at 05:42

Then how can I interface it? Is it possible with an LCD driver controller IC such as SSD1963?

T J
Senior III
February 22, 2017
Posted on February 22, 2017 at 06:11

yes, like this one,

http://www.buydisplay.com/default/7-tft-screen-touch-lcd-display-module-w-ssd1963-controller-board-mcu

 

other wise, you have to make you own board with that chip installed.

I would recommend the RA8875 or RA8876 solutions. like this one:

http://www.buydisplay.com/default/serial-spi-arduino-5-inch-tft-lcd-touch-shield-ra8875-for-mega-due-uno

 

or 10'

http://www.buydisplay.com/default/serial-spi-arduino-10-1-inch-tft-lcd-touch-shield-ra8876-for-due

 

you can find heaps of these type on the net... search for SPI TFT LCD 7' RA8875 or RA8876 or SSD1963

T J
Senior III
February 22, 2017
Posted on February 22, 2017 at 11:27

will make your own private PCB ?

or will you use LCD with SSD1963 on board

aml chirayath
Associate II
February 22, 2017
Posted on February 22, 2017 at 11:35

My LCD has only a back light driving board. I need to make a PCB of LCD data controller.

T J
Senior III
February 22, 2017
Posted on February 22, 2017 at 11:41

with careful study, its pretty easy actually, just follow the steps on page 82 or 83.

make sure you have sufficient capacitance , otherwise you may see dots running over screen.

T J
Senior III
March 10, 2017
Posted on March 10, 2017 at 08:38

I tried to compile it but so many errors..

I added these to stdint.h

/* exact-width signed integer types */

typedef unsigned short int s16;

/* exact-width unsigned integer types */

typedef unsigned char bool;

typedef unsigned char u8;

typedef unsigned short int u16;

typedef unsigned int u32;

which compiler are you using ?

this is based on uV5

________________

Attachments :

Errors.rtf : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HynT&d=%2Fa%2F0X0000000bCk%2Fw7IFUQcAs.poWIEGitC3CT0OggBL2lfkX0Xa0C0eWz4&asPdf=false

SSD1963 LCD F091VCT.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HyoV&d=%2Fa%2F0X0000000bCj%2FYP1EroDaS_xJ_C3aMWEcfTQH.kY_G6VnJH.vrBTEk.I&asPdf=false
aml chirayath
Associate II
March 10, 2017
Posted on March 10, 2017 at 10:37

I am using Keil uV4.