New STM32H747-DISCO - BSP_LCD_Init() Issue?

[AndrewCapon]

Hi Guys,

I have a new STM32H747-DISCO board here, I have been to the ST Community and there is another guy with a new board that is seeing the same issue: https://community.st.com/s/question/0D53W00002A3uJaSAJ/stm32h747-lcd-display-issue

So for most of the examples using the LCD I see this:

If I load up one of the CmdMode examples for instance LCD_DSI_CmdMode_SingleBuffer then the screen is working fine, it seems to be handling the DSI transfers itself and the display is working as expected.

If I load up any example that is using BST_LCD_Init() for instance LCD_DSI_VideoMode_SingleBuffer then the screen just shows the unmoving static as shown in the image attached.

I have stepped through the code of LCD_DSI_VideoMode_SingleBuffer checking that there are no error returns anywhere and everything looks ok, DMA is working, data is in the frame buffer but it just seems the frame buffer is not being pushed to the screen.

I'm wondering if maybe this is a new revision of this board and the existing code is not quite working.

Has anyone any ideas of what to check for here?

Many thanks

Andy

[HBOSTM]

ST Internal Reference: 147459

[HBOSTM]

Hello @AndrewCapon ,

thank you for this contribution. This point has been reported to our development teams. I will get back to you as soon as I have any updates.

With Regards,

[AndrewCapon]

Hi @HBOSTM,

Super thanks for that.

Andy

[AndrewCapon]

Hi @HBOSTM

Do you have an update on this?

More and more people are popping up on the forum with issues with these displays.

Andy

[HBOSTM]

Hello @AndrewCapon ,

The fix is available on GitHub : https://github.com/STMicroelectronics/STM32CubeH7/commit/1c84713102f8509deb79ae14db8dbb104c17c45e

In fact , LCD DSI MB1166-A9 delivered with latest version of STM32H747I-DISCO/ boards come based on LCD FGRIDA FRD400B25025-A-CTK instead of FRD397B25009-D-CTK.

Now the firmware is updated , 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 /

Could you please test with this update and get back to me to close this issue.

Best Regards,

[AndrewCapon]

Hi @HBOSTM

Thanks for the info, I had already been informed on the forum and have done a quick test. The examples included are incorrect as they do not include the new components, when that is fixed they now work.

There may still be some confusion from users though as the boards that are not working before have an A03 sticker not an A09. You can see this in the original image above.

[dc5ala]

Could you get the example running? Because for me I still get the same issue. I opened an example project from the new firmware package 1.11.1 folder and changed the line:

define USE_LCD_CTRL_OTM8009A 0U

define USE_LCD_CTRL_NT35510 1U

Is there anything else to change? I still get the same noisy image. I have an MB1166-A09 board.

[s1d-r]

Hi @HBOSTM and @AndrewCapon I have changed the drivers and everything yet its not working for me this is set of errors and warnings I am receiving

arm-none-eabi-gcc "/home/ad/en.FP-AI-VISION1_V3.1.0/FP-AI-VISION1_V3.1.0/Drivers/BSP/STM32H747I-Discovery/stm32h747i_discovery_lcd.c" -mcpu=cortex-m7 -std=gnu11 -g3 -DUSE_HAL_DRIVER -DSTM32H747xx -DUSE_STM32H747I_DISCO -DCORE_CM7 -DDATA_IN_ExtSDRAM -DMEMORY_SCHEME=3 -DCAMERA_CAPTURE_RES=2 -DPIXEL_FMT_CONV=1 -DARM_MATH_CM7 -DOBJECTDETECT -DSTM32IPL -D__FPU_PRESENT=1 -c -I../../../CM7/Inc -I../../../../Common/CM7/Inc -I../../../../../../../Drivers/CMSIS/Device/ST/STM32H7xx/Include -I../../../../../../../Drivers/CMSIS/Include -I../../../../../../../Drivers/CMSIS/DSP/Include -I../../../../../../../Drivers/STM32H7xx_HAL_Driver/Inc -I../../../../../../../Drivers/BSP/STM32H747I-Discovery -I../../../../../../../Drivers/BSP/Components/Common -I../../../../../../../Drivers/BSP/Components/ov9655 -I../../../../../../../Drivers/BSP/Components/otm8009a -I../../../../../../../Utilities/Fonts -I../../../../../../../Utilities/lcd -I../../../../../../../Middlewares/ST/STM32_AI_Runtime/Inc -I../../../../../../../Middlewares/ST/STM32_AI_Utilities/Inc -I../../../../../../../Middlewares/ST/STM32_ImageProcessing_Library/Inc -I../../../../../../../Middlewares/Third_Party/FatFs/src -I../../../CM7/lib/libpeopledetect/Inc -Ofast -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/BSP/STM32H747I_DISCO/stm32h747i_discovery_lcd.d" -MT"Drivers/BSP/STM32H747I_DISCO/stm32h747i_discovery_lcd.o" --specs=nano.specs -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -o "Drivers/BSP/STM32H747I_DISCO/stm32h747i_discovery_lcd.o" arm-none-eabi-gcc -o "STM32H747I-DISCO_PeopleCounting_CM7.elf" @"objects.list" -l:LibPeopleDetect110_CM7_GCC.a -l:NetworkRuntime710_CM7_GCC.a -mcpu=cortex-m7 -T"/home/ad/en.FP-AI-VISION1_V3.1.0/FP-AI-VISION1_V3.1.0/Projects/STM32H747I-DISCO/Applications/PeopleCounting/STM32CubeIDE/CM7/STM32H747XIHx_FLASH_CM7_Full_Internal_Fps.ld" --specs=nosys.specs -Wl,-Map="STM32H747I-DISCO_PeopleCounting_CM7.map" -Wl,--gc-sections -static -L../../../../../../../Middlewares/ST/STM32_AI_Runtime/lib -L../../../CM7/lib/libpeopledetect -u _printf_float --specs=nano.specs -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -Wl,--start-group -lc -lm -Wl,--end-group /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-closer.o): in function _close_r': (.text._close_r+0xc): warning: _close is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-fstatr.o): in function_fstat_r': (.text._fstat_r+0xe): warning: _fstat is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-signalr.o): in function _getpid_r': (.text._getpid_r+0x0): warning: _getpid is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-isattyr.o): in function_isatty_r': (.text._isatty_r+0xc): warning: _isatty is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-signalr.o): in function _kill_r': (.text._kill_r+0xe): warning: _kill is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-lseekr.o): in function_lseek_r': (.text._lseek_r+0x10): warning: _lseek is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-readr.o): in function _read_r': (.text._read_r+0x10): warning: _read is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard/libc_nano.a(libc_a-writer.o): in function_write_r': (.text._write_r+0x10): warning: _write is not implemented and will always fail /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: ./Drivers/BSP/STM32H747I_DISCO/stm32h747i_discovery_lcd.o: in function NT35510_Probe': /home/ad/en.FP-AI-VISION1_V3.1.0/FP-AI-VISION1_V3.1.0/Drivers/BSP/STM32H747I-Discovery/stm32h747i_discovery_lcd.c:2170: undefined reference toNT35510_RegisterBusIO' /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: /home/ad/en.FP-AI-VISION1_V3.1.0/FP-AI-VISION1_V3.1.0/Drivers/BSP/STM32H747I-Discovery/stm32h747i_discovery_lcd.c:2178: undefined reference to NT35510_ReadID' /opt/st/stm32cubeide_1.14.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.linux64_1.1.100.202309141235/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld: ./Drivers/BSP/STM32H747I_DISCO/stm32h747i_discovery_lcd.o: in functionBSP_LCD_InitEx': /home/ad/en.FP-AI-VISION1_V3.1.0/FP-AI-VISION1_V3.1.0/Drivers/BSP/STM32H747I-Discovery/stm32h747i_discovery_lcd.c:404: undefined reference to `NT35510_LCD_Driver' collect2: error: ld returned 1 exit status make: *** [makefile:71: STM32H747I-DISCO_PeopleCounting_CM7.elf] Error 1 "make -j6 all" terminated with exit code 2. Build might be incomplete.

10:46:34 Build Failed. 4 errors, 8 warnings. (took 1s.442ms)

[ALABSTM]

Hi everyone,

Please excuse this delayed reply.

• @AndrewCapon

  • To answer your question about the A03 and A09 labels, it is A09 indeed. Board revision A03 is no more active and has been replaced by the newer revision A09. However, the same recommendations apply to both.
  • You mentioned some examples that do not include the new NT35510 component's driver yet. You are right. We identified this list. This will be fixed soon hopefully.
  • ./Projects/STM32H747I-DISCO/Applications/FPU/FPU_Fractal
  • ./Projects/STM32H747I-DISCO/Examples/DCMI/DCMI_SnapshotMode
  • ./Projects/STM32H747I-DISCO/Examples/DMA/DMAMUX_RequestGen
  • ./Projects/STM32H747I-DISCO/Examples/MDMA/MDMA_DMA2D_Triggering
  • ./Projects/STM32H747I-DISCO/Examples/MDMA/MDMA_LinkedList_ColorsComp
  • ./Projects/STM32H747I-DISCO/Examples/MDMA/MDMA_RepeatBlock_Rotation
  • ./Projects/STM32H747I-DISCO/Examples/MDMA/MDMA_RepeatBlock_ZoomOut

• @dc5ala, a new way to dynamically identify the LCD screen has been introduced since commit dd1b1d7144e6c61f995a368bbbeaad1936d60cd1. Hence, there is no more need for you to update the values of macros USE_LCD_CTRL_OTM8009A and USE_LCD_CTRL_NT35510. The comment below is no more relevant and shall be removed in a future version of this firmware.

https://github.com/STMicroelectronics/STM32CubeH7/blob/dd1b1d7144e6c61f995a368bbbeaad1936d60cd1/Drivers/BSP/STM32H747I-DISCO/stm32h747i_discovery.h#L22-L25

• @s1d-r, it looks from the screenshots you shared that you have not included the NT35510 driver's source files in your project's configuration file.

With regards,

[ALABSTM]

ST Internal Reference: 175742

[ALABSTM]

ST Internal Reference: 176107

[ALABSTM]

Hi @AndrewCapon and @dc5ala,

The remaining issues reported have been fixed in the frame of release 1.11.2. Please allow me to close this thread.

With regards,

[AndrewCapon]

Thanks @ALABSTM

[ALABSTM]

You're welcome @AndrewCapon.