[SOLVED] STM32F469I-Disco and TouchGfx 4.20.0. I bought STM32F469IDisco. Version MB1189-F469NIH6-B08-A222300689. When I try start new project with TouchGFX, result is black screen.

[SPrik]

I tried both "Run Target" from TouchGFX Designer, and Cube IDE (Cube MX) compile / debug result is black screen. Compile, debug and run is without errors.

[SPrik]

Thanks for answer,

I tried replace driver OTM8009A by new driver NT35510.

Display is black.

Try change parameters (community.st link)

STM32F469I-DISCO NEW LCD Driver Missing NT35510

1. PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
2. PeriphClkInitStruct.PLLSAI.PLLSAIN = 144; //384
3. PeriphClkInitStruct.PLLSAI.PLLSAIR = 2; //7
4. PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2;//RCC_PLLSAIDIVR_2
5. HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);

But still is black.

Final debug screen:

 

[EXUE.2]

Hi Sprik, can you download attached "STM32F469I-DISCO_tst_V2.9.4.hex" file to your board firstly to check if the display is OK?

This .hex file is OK in my STM32F469I-DISCO board with NT35510 LCD.

[SPrik]

Hi,

Thanks for file.

Board is OK - LCD and others peripherals working.

//Nice picture on 800x480//

I tried make new project.

1. Start TouchGFX and make new proj. (Select board, Place some buttons on canvas, ...)
2. Generate code - (simulator working)
3. Open *.ioc file - CubeMX and generate code
4. Open CubeIDE
5. From Drivers/BSP/ Components delete link to OTM8009a/OTM8009a.c
6. Make new link to NT35510/35510.c
7. In project files replace all otm8009a by NT35510
8. Build project => no errors
9. Debug project. LCD is black.

[EXUE.2]

I don't familiar with your compile tool environment, and I guess maybe the 35510.c is not matching the new NT35510 LCD? you can try the replace 35510.c and 35510.h by below files

[SPrik]

Hi, EXUE_2,

I replaced nt35510.c and nt35510.h files - no change - black screen.

My SW:

STM32CubeIDE - 1.10.1

STM32CubeMX - 6.6.1

TouchGFX - 4.20.0

Could you send me any simple working demo based on TouchGFX + CubeIDE + (CubeMX) ? Source code, I will try compile it.

Thanks.

[EXUE.2]

Hi SPrik, I only have one demo project based IAR, if you want to get it, please give me your email.

[JKim.27]

Can I get a demo project? E-mail address is [e-mail]. Thank you.

[SPrik]

Thanks for offer.

Is it TouchGFX based app?

[EXUE.2]

no, it just is one LCD display example code

[Ebby]

stm32469i_discovery_lcd.h interface from the latest Cube F4 package works just fine. But only the touchgfx applications does not seem to work(even after replacing the OTM8009a code)

By the way, any idea why the TouchController initialization fail in touchgfx. Maybe the touch controller's I2C address is different?

[SPrik]

Thanks fo offer.

I will try it. Pleae send this project to [e-mail]

I placed new question to TouchGFX forum, if anybody has TouchGFX project with driver NT35510.

[SPrik]

Hi,

Debug from stm32469i_discovery_ts.c file, function BSP_TS_Init

I2C_address = 112 = 0x70

PH7 - with or without PULL UP - not working.

I found, function BSP_TS_INIT return error 0x03 = TS_DEVICE_NOT_FOUND

Important this funtion is calling approx 15 sec after program debug started.

[RRoma.5]

Hello,

I have the same problem with my STM32F469I-DISCO

DK32F469I$AU1

QR code:

MB1189-F469NIH6-B08

A222301588

[EmbDev]

Created an example application with TouchGFX for board B08:

https://github.com/RTwTools/STM32F469I-Discovery/tree/feature/B08-nt35510

Binary:

https://github.com/RTwTools/STM32F469I-Discovery/releases/tag/B08-NT35510-V1.0

[Romain DIELEMAN]

Thank you for sharing your example, it is very helpful to all of us :thumbs_up:

/Romain

[SPrik]

Thanks for app.

Your Elf file working.

Small question: HOW DID YOU DO THAT?

When I tried open project, rebuild it, or make some changes, display remain black.

How did you do that?

Can you explain step by step: From new project in TOUCHGFX to DEBUG in STM32CubeIDE

is it possible?

[EmbDev]

You need to checkout the B08 branch: https://github.com/RTwTools/STM32F469I-Discovery/tree/feature/B08-nt35510

The main branch is the default app for the older display.

You can see the required changes in this commit: https://github.com/RTwTools/STM32F469I-Discovery/commit/26085432aa213f7dd75b59c06e9b40c444992ffa

[Ebby]

Thank you very much. This fixed my issue.