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Not able to Run TouchGFX demo provided by ST on STM32H7B3I-EVAL

tejas210
Associate II

Hi ST Support Team, 

 

#1 Demo provided by ST for STM32H7B3I-EVAL board is working on Windows Simulator.

   But it is not working for Target (STM32H7B3I-EVAL board.)  

#2 Does code generated by TouchGFX designer will run on Target board without any code changes on target (STM32H7B3I-EVAL).

Please help me to resolve this issue.  

Regards,

Tejas

19 REPLIES 19
tejas210
Associate II

When i run demo on debug mode. Code is going into HardFault_Handler(). 

/**

* @brief This function handles Hard fault interrupt.

*/

void HardFault_Handler(void)

{

/* USER CODE BEGIN HardFault_IRQn 0 */

/* USER CODE END HardFault_IRQn 0 */

while (1)

{

/* USER CODE BEGIN W1_HardFault_IRQn 0 */

/* USER CODE END W1_HardFault_IRQn 0 */

}}

tejas210
Associate II

error_stm32.png

Every eval board from ST have more as one revision with different chips displays etc.

Then in source code of demos exist defines for it or demo is only for one revision. 

And primary on your screenshot left side you see crash is in touch panel func . then start diagnostic with disable this func =  touch not work , but display yes...

JohanAstrup
ST Employee

Hello @tejas210.

Which board revision do you have? You can find it on a sticker on the underside of the board.

I have just tested with the board I have here, and it works fine. The board revision I am using is MB1331-H7B3LIQ-D03.

Best regards,
Johan

Hi Johan,

 

The board revision I am using is MB1331-H7B3LIQ-D04.

Regards,

Tejas

tejas210
Associate II
Hi Johan,
We are trying to run below demo.  Programming is successful on board but nothing is displayed  on LCD. 
We tried reset button after flash and power cycle but issue is same. 
Boot Mode: 0    is set in our board. 
 
Please refer below snapshot for board specific demo which "versions" we need to choose for MB1331-H7B3LIQ-D04.
Also share which demo example have you tired on your setup. we will try same on our setup for comparisons. 
Please do need full for us as we are waiting for your response.
 
Regards,
Tejas Patel
boot_mode_settings.png 
 

error_touchgfx.png

tejas210
Associate II

Dear ST Technical Support Team,
We recently purchased a brand-new STM32H7B3I-EVAL board (MB1331-H7B3LIQ-D04) from Mouser Electronics. Based on the available documentation and demonstration videos, we expected to explore TouchGFX functionality on the STM32H7 platform. However, the demo provided with the board is not working, and we are currently blocked in our evaluation.
We have already reached out but have not received any response so far. Could you please confirm whether this issue is hardware- or software-related, and whether the board was tested before shipment? As this is a new evaluation board, we would appreciate your guidance to resolve the problem at the earliest.
We have attached a photo of the product details for your reference.
Looking forward to your prompt support.
Best regards,
Tejas PatelWhatsApp Image 2026-04-04 at 11.25.27 AM (1).jpegWhatsApp Image 2026-04-04 at 11.25.27 AM.jpegScreenshot 2026-04-04 113017.png

 

 

How many versions you test ?

 
 

tgtg.png

plus you test without IDE , use direc load to target in TGFX ?

JohanAstrup
ST Employee

Was there an application already running on the board when you received it?

How are you powering the board? With this specific EVAL board, I sometimes experience issues if I do not use an external power supply, as the board requires quite a lot of power. Please remember to set the jumper correctly according to your setup on the pins between the DC jack and the RS232 connector.

Could you also try to run one of the demos from the firmware pack? For example the one placed here:
C:\Users\YOUR_USER_NAME\STM32Cube\Repository\STM32Cube_FW_H7_V1.13.0\Projects\STM32H7B3I-EVAL\Examples\LTDC\LTDC_ColorKeying.

Best regards,
Johan