About Ricko

Ricko · 2025-03-23

Hi,in CubeMX clock configuration, after inputting a desired value into one of the PLL outputs (like in the LTDC Clock box) you can lock it and it turns gray (see screenshot), you can then set another related PLL output (like the DSI) and it should re...

Ricko · 2025-03-17

Hi,we are trying to get a 800x800 display to work with the STM32U5G9VJT6Q, using either RGB888 or RGB565 in Video Mode (Burst).According to what we read it is definitely possible. Did we miss something?Could someone please confirm that is definitely ...

Ricko · 2025-03-16

Hi,in this touchGFX documentation page ( MIPI-DSI Video Mode | TouchGFX Documentation ) under the "DSIHOST / LTDC Initialization sequence" section it says:"The call to MX_DSIHOST_DSI_Init() must be done before MX_LTDC_Init(). This should be handled b...

Ricko · 2025-03-16

Hi,I configured the STM32U5G9 DSI Host peripheral in Video mode (with Burst) using CubeMX. Next, I need to send display-specific commands to configure the DSI display registers (not the DSI Host peripheral) using HAL_DSI_ShortWrite(). Does the DSI Ho...

Ricko · 2025-03-13

Hi,I need to initialize a display by calling my function in main.c. This function uses the I2C4 channel and requires implementing some delays.Since it uses I2C4, it must be placed after the CubeMX Init functions, specifically in /* USER CODE 2 */. Do...

Ricko · 2025-03-19

Thank you @Tesla DeLorean I have that controller datasheet but it does not show any clock specs.The manufacturer suggested the pixel clock = 44MHz (which is what we also get) and the DSI clock = 270MHz so byte clock = 33.75 MHzBut CubeMX does not all...

Ricko · 2025-03-19

Thank you @Tesla DeLorean please see attached datasheet.Thank you

Ricko · 2025-03-19

Thank you @MM..1 yes, that is aligned with my original calculations (I was using RGB565 so we get different values).I understand the DSI minimum clock calculation, but I was wondering if I am correct in thinking that - while keeping the LTDC pixel cl...

Ricko · 2025-03-19

Thank you @STOne-32 my understanding is that in that scenario around 33MHz for the DSI byte clock is the minimum value. How much faster can I set the DSI byte clock while keeping the pixel clock at 44MHz? Can I push it to the DSI HOST's PHY maximum a...

Ricko · 2025-03-18

Thank you @STOne-32 the refresh rate is 60Hz and the pixel clock calculated is 44MHz (values in the attached excel screenshot).I did read that document a while back and from table 17 on page 31 (screenshot below) it seems to be ok and plenty of headr...

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CubeMX Clock Configurator NOT Locking The Selected Values

800 x 800 Display with STM32U5G9VJT6Q - possible?

Incorrect DSIHOST / LTDC Initialization sequence by Cube MX...?? Is there a workaround?

Sending DSI Commands at startup?

HAL_Delay() Not Working Before OS Kernel Start.

Re: 800 x 800 Display with STM32U5G9VJT6Q - possible?

Re: 800 x 800 Display with STM32U5G9VJT6Q - possible?

Re: 800 x 800 Display with STM32U5G9VJT6Q - possible?

Re: 800 x 800 Display with STM32U5G9VJT6Q - possible?

Re: Urgent Clarifican Please - 800 x 800 Display with STM32U5G9VJT6Q