HW setup and Display test on STM32F746

[@miladchalipa2002]

Hi, in 8:46" you set the signal polarity section of TFT and change the Vertical sync and DE polarity to active high, how do we determine the right choices in this section of settings? regards

[@hanspeterhaastrup-nielsen8446]

Good question! The simple answer is that i get them from the datasheet for that particular display.

[@toanquangthieu]

Very interesting video. Could you please the link or datasheet of your LCD? It can be easy to compare with the settings on your video.

[@binodyadav4133]

Nice Work. I have one question. In this Video you displayed the Picture on the screen by pointing the the start address of the Picture in the flash. What needs to be done to show the screen you created on Touchgfx?

[@banjohat]

TouchGFX fills the framebuffer by default. The static test imaeg is to test the screen connection. If you don't modify the framebuffer address pointer then you will get the image generated by touchGFX

[@binodyadav4133]

@@banjohat thanks for the reply. I am able to test a static picture on my 480x272 screen using stm32f429igt.But it doesn't work shows screen created in touchgfx.I tried different values of start frame buffer address in LTDC parameter in cubemx.I am working on a custom board with stm32f432igt mcu with 480x272 screen.

[@koya-jsr1673]

Will this patch tool work for stm32f750dk also ??

[@banjohat]

it should - we're bypassing the framebuffer generated by tGFX and using a static memory location so that should work on all platforms

[@kasundinesh]

Hi, First of all, thank you very much for posting these videos. I am finding hard time of using touchgfx and cubeIDE. I m using cubeIDE 1.1 and touchgfx 4.12. Can you do a video on how to create a project from CUBE IDE and use touch gfx. I went through all the videos you have and followed every steps in there. But still couldent get it to work.

[@hanspeterhaastrup-nielsen8446]

The process is a lot simpler with the new version. Until I make a new video, I suggest that you have a look at the touchgfx support forum. The is a nice walkthrough on how to set up the project

[@kasundinesh]

@@hanspeterhaastrup-nielsen8446 yes i did that too. But unfortunatly i m getting errors for RTOS init and for some other functions

[@chaaalyy]

@@kasundinesh Strange... I also work with the new IDE (1.1.0) and TGFX 4.12.3 and everything works nearly straight out of the Box on the F746 Discovery. Try the following: 1.) create a new stm32 Project. 2.) Use the integrated CubeMX to initialise all the Peripherals with their defaults. 3.) In MX activate TouchGFX (dont forget to set that Display Pin) 4.) Generate Code (but dont leave MX...) 5.) Start the Designer with that Button in MX... 6.) Create a simple GUI (2 Screens, Interactions are: When Screen X is entered change to Screen Y and vice versa, so u dont have to setup the TouchScreen. Remember: Its just a quick Test). 7.) Not sure, but i get some Trouble, when i use the Simulator here ! 8.) Generate Code within the Designer, after completion close it and switch back to MX. 9.) Generate Code within MX again and close Perspective... 10.) Build, Flash and enjoy ... Integration of TouchScreen works like usual (Drivers, Paths and so on...). Also QSPI for external Flash and other Peripherals : No Problem ...

[@kasundinesh]

@@chaaalyy I m using DSI interface for stm32F4. So when i set every thing to default DSI parameters are not set properly

[@christiancedrictoe8882]

Very good job. I would like to get in touch with you.

[@banjohat]

shoot me a mail! my website is the channel name :)