7" Capacitive TFT Colour Problem

[fame12tr@hotmail.com]

Hi Filip

I have a problem and I need your help

I bought one TFT BOARD 7 CAPACITIVE WITH FRAME.
I use the product with the STM32 Nucleo-144 board.
Processor STM32F746ZG
The connection is the same as the Microe pins as you will see below.

// TFT module connections
sbit TFT_BLED at GPIOF_ODR.B10;
sbit TFT_CS at GPIOF_ODR.B12;
unsigned int TFT_DataPort at GPIOG_ODR;
sbit TFT_RD at GPIOF_ODR.B14;
sbit TFT_RS at GPIOF_ODR.B13;
sbit TFT_RST at GPIOF_ODR.B11;
sbit TFT_WR at GPIOF_ODR.B15;
// End TFT module connections

As you can see in the video in the link below
the image only appears as blue color.
No other colors.

https://youtu.be/EqsxkK0q7VA

I don't know if the TFT is faulty or there is another reason.

I am using external 3.3V 10A as power supply.

Waiting for your solutions

Regards

[filip]

Hi,

We use this display on some of our boards, you may find the initialization code (TFT_Init_SSD1963_Board_70) in the library (__Lib_TFT_Defs.c) and the example in the attachment.

Regards,
Filip.

[fame12tr@hotmail.com]

Hi Filip

Thanks for the info and code.
I tried, but the result is still the same, only blue color.
You can see it in the attached picture.
https://drive.google.com/file/d/1fdVbdz ... sp=sharing
Tomorrow I will take the product to the distributor in Turkey where I ordered the product. (BETI Elektronik ) They probably have a V8 mainboard.
I will write you according to the result there.

Thanks
Emrah CALISKAN

20211103_195639.jpg (2.15 MiB) Viewed 1684 times

[filip]

Hi,

OK, please inform me of your findings.

Regards,
Filip.

[fame12tr@hotmail.com]

Hi Filip

I was looking through my old Messages and noticed that I didn't reply to your message.
I'm posting in case others have the same problem.
Another interface on the card I used to drive the 7" TFT was using PortG.7.
In other words, since the 16-bit G port required to drive TFT does not have pin 7, other colors cannot be obtained.
After detaching PortG.7 and releasing it, it was displayed in other colors.
You can see it in the attached picture.

Regards
E.Caliskan

7InchColour2.jpg (320.39 KiB) Viewed 1022 times

[filip]

Hi,

Thank you for the update.

Regards,
Filip.

[fame12tr@hotmail.com]

Hi Filip

If you have a User Manual or Application note showing the command and data sending and times for the 7" Capacitive TFT, could you share it?

Regards
E.Caliskan

[filip]

Hi,

I can attach datasheet and initialization code if this helps.

Regards,
Filip.

[fame12tr@hotmail.com]

Hi Filip

Looking forward to your help on the matter.
I would appreciate if you send.

Regards
E.Caliskan