Having trouble to interfacing B-CAMS-OMV with STM32H747I-Discovery

[brunamark]

Hello, Everyone!

I have a trouble to interfacing B-CAMS-OMV with STM32H747I-Discovery. I used the examples DCMI_SnapshotMode on STM32CubeIDE and in other post, a ST employee said that the drivers are old and the new ones are on the github page in this link.  I tried so many times to use this example with the new drivers and its not working and the LCD displays only noise. The LCD works well because I tested some LCD_DSI and works fine. I've missed something on the code?

[KDJEM.1]

Hello @brunamark and welcome to the community :),

Which STM32H747I-DISCO revision are you using? MB1248-H747I-D02, MB1248-H747I-D03 ...?

Which LCD revision are you using? MB1166 A-02, A03, A09.....?

I think this wiki can help you to add the new LCD drivers, for that please take a look to 3.1.4 Compiling the project Section.

Thank you.

Kaouthar

[brunamark]

Hello Kaouthar, thank you for your message!

My board revision is MB1248-H747I-D03 and LCD is MB1166-A09. 

[KDJEM.1]

Hello @brunamark ,

You just need to enable the right hardware component as defined in stm32h747i_discovery_conf.h file and add the new component library (NT35510) in your project.

/* IMPORTANT: One of the following flags must be enabled in stm32h747i_discovery_conf.h file */

/* options in order to select the target daughter board revision connected on STM32H747I DISCOVERY : !!!!!!!!!! */

/* USE_LCD_CTRL_OTM8009A */ /* Applicable for all LCD daughter boards (MB1166) except for Rev -A09 */

/* USE_LCD_CTRL_NT35510 */ /* Applicable only for LCD daughter boards (MB1166) Rev -A09 */

Please let me know if the issue is solved or not?

Thank you.

Kaouthar

[brunamark]

I'm completely new to stm32, I really appreciate your help! I have checked the wiki that you mentioned before to add drivers. I modified the stm32h747i_discovery_conf.h file like the black box below, but it doesn't work (I don't know if this is what are you trying to say). Also, when I disable the OTM8009A, I have several issues in other parts like OTM8009A_480X800 undeclared and I don't know if I have to change all this parts to NT35510.  

#include "stm32h7xx_hal.h"

/* COM define */

#define USE_COM_LOG 1U

#define USE_BSP_COM_FEATURE 1U

/* LCD controllers defines */

#define USE_LCD_CTRL_OTM8009A 0U

#define USE_LCD_CTRL_NT35510 1U

#define USE_LCD_CTRL_ADV7533 0U

#define LCD_LAYER_0_ADDRESS 0xD0000000U

#define LCD_LAYER_1_ADDRESS 0xD0200000U

[KDJEM.1]

Hello @brunamark ,

I apologize that my answer didn't help you.

For that, I tested the DCMI_SnapshotMode example with MB1248-H747I-D03 and LCD is MB1166-A09 using the STM32CubeIDE1.14.0 version and it works correctly. 

Could you please follow these steps:

1-Dowlownd the STM32CubeH7 from this link and Unzip the file.

2-Go on the GitHub STM32H747I-DISCO BSP website, and download as zip. Unzip the files and copy them in the project folder STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Drivers\BSP\STM32H747I-DISCO by replacing the old files.

3-Download the OTM8009A LCD drivers on GitHub and place the unzipped files inside the folder STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Drivers\BSP\Components\otm8009a by replacing the old files.

4-Create a new "nt35510" folder in \STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Drivers\BSP\Components

5- Download the NT35510 LCD drivers on GitHub,  and unzipped and copy the files in "stm32-nt35510-main" folder to \STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Drivers\BSP\Components\nt35510.

6- Open DCMI_SnapshotMode example with STM32CubeIDE1.14.0 version STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Projects\STM32H747I-DISCO\Examples\DCMI\DCMI_SnapshotMode\STM32CubeIDE

7- Add "nt35510.c" and "nt35510_reg.c" files to the STM32CubeIDE project. So, drag and drop the nt35510.c and nt35510_reg.c files in STM32CubeIDE from STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Drivers\BSP\Components\nt35510 as shown in the below figure:

8-Add the STM32Cube\Repository\STM32Cube_FW_H7_V1.11.1\Drivers\BSP\Components\nt35510 folder to the include paths, so, click on Project->Properties and follow the instructions below:

I add in attachment the DCMI_SnapshotMode project after all modification.

I hope this help you!

Thank you.

Kaouthar

[brunamark]

I have to thank you again to explain it to me but isn't work. I followed all the steps you mentioned and when I modified the stm32h747i_discovery_conf.h file, I have the same issue that I mentioned before. This is the error that shows on my console:

This is due the OTM8009A deactivation onstm32h747i_discovery_conf.h file, as shown in the below:

 Even if I activate nt35510 and otm8009a, it displays only noise in the LCD.

[KDJEM.1]

Hello @brunamark ,

Thank you for this update.

Did the attached project in my last comment help you? I tested with MB1248-H747I-D03 and LCD is MB1166-A09 and it worked fine.

-->disable the OTM8009A.

What do you mean by "disable the OTM8009A"?

Thanks and best regards,

Kaouthar

[brunamark]

The project that you attached before, I've tried to run and I have this message <No rule to make target 'C:/Utilities/lcd/stm32_lcd.c', needed by 'Utilities/stm32_lcd.o'. Stop.>. I mean disable the OTM8009A put into 0U or commented in the line that are defined. 

[KDJEM.1]

Hi @brunamark ,

Could you please try to "Clean Project" before "Build Project".

I disabled the OTM8009A and I didn't reproduced the issue.

Please make sure that Step2 is set correctly.

Please try to:

- Download the project in attachment and unzipped.

- Open STM32CubeDCMI_Example\STM32Cube_FW_H7_V1.11.1\Projects\STM32H747I-DISCO\Examples\DCMI\DCMI_SnapshotMode\STM32CubeIDE project.

-Clean Project

-Built Project.

Please let me know if the issue is solved.

Thank you.

Kaouthar