2024-08-23 02:17 AM - last edited on 2024-08-23 02:52 AM by SofLit
Hello Everyone
I want connect stm32F LCd controller to TFT lcd but 16 bit because I have lack of pins . how should I connect the RGB pins of STM32 to RGB pins of the LCD ?
In case I use the LTDC contrller in 16bits , Can I use the unused pins RGB of the controller for other fucntions ?
Thank you in advanced
Solved! Go to Solution.
2024-08-23 02:24 AM
Hello,
I want connect stm32F LCd controller
Which STM32 part number?
Please review the tips on how to post a thread in this community: https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228.
how should I connect the RGB pins of STM32 to RGB pins of the LCD ?
You can refer to that application note: https://www.st.com/resource/en/application_note/an4861-introduction-to-lcdtft-display-controller-ltdc-on-stm32-mcus-stmicroelectronics.pdf
In case I use the LTDC contrller in 16bits , Can I use the unused pins RGB of the controller for other fucntions ?
Yes.
2024-08-23 02:24 AM
Hello,
I want connect stm32F LCd controller
Which STM32 part number?
Please review the tips on how to post a thread in this community: https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228.
how should I connect the RGB pins of STM32 to RGB pins of the LCD ?
You can refer to that application note: https://www.st.com/resource/en/application_note/an4861-introduction-to-lcdtft-display-controller-ltdc-on-stm32-mcus-stmicroelectronics.pdf
In case I use the LTDC contrller in 16bits , Can I use the unused pins RGB of the controller for other fucntions ?
Yes.
2024-08-23 02:51 AM
Hello
We use STM32F429, and STM32UF9
Regards
Sami
2024-08-23 02:54 AM - edited 2024-08-23 02:55 AM
Ok. edited the post then .. PS: There is no STM32UF9 part number.
As said review the application note AN4861.
2024-08-24 12:44 AM
Thank you ,
Should I connect the floating pins of the LCD to ground ? or leave them floating ?
Regards
2024-08-26 12:58 AM
What do you mean by "floating pins of the LCD"?? RGB pins? in that case why? You said:
"In case I use the LTDC contrller in 16bits , Can I use the unused pins RGB of the controller for other fucntions ? "
So I understood you will use LCD with less pins of what available on STM32.
2024-08-26 01:18 AM
Hello
The TFT lcd is 24 bits RGB ; I will use 16 bit only and I will connect the MCU STM32 to LCD as you suggested in AN4861.
But my question
What about the unused pins now in the lcd , I have 8 data pin of the lcd not used , should I leave them floating ?
or connect them to ground?
Thank you
2024-08-26 01:24 AM
I think you need to connect them to the GND but you need to refer to the datasheet of the LCD.