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How do I enable ltdc_aclk? STM32H745XIH6

aj992
Associate

I'm configuring the LTDC and I'm not sure where/how I enable the ltdc_aclk. I've enabled ltdc_plck in RCC->APB3ENR and I've configured PLL3R for the kernel/pixel clock but I cannot for the life of me find any info on how/where to enable ltdc_aclk so I'm unable to modify any of the registers in this clock domain.

 

I'm using the STM32H745i-DISCO dev board.

clocks.png

clocks2.png

1 ACCEPTED SOLUTION

Accepted Solutions
Imen.D
ST Employee

Hello @aj992,

The LTDC AXI clock is set by default, as it is the clock of matrix bus.
For LTDC, there is the LTDCEN bit to set.

ImenD_0-1709148335532.png

 

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen

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1 REPLY 1
Imen.D
ST Employee

Hello @aj992,

The LTDC AXI clock is set by default, as it is the clock of matrix bus.
For LTDC, there is the LTDCEN bit to set.

ImenD_0-1709148335532.png

 

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen