I am trying to interface a ST7796 display to STM32H747XI DISCO board. The display vendor recommended setting the DSI LPMODE clock to 5MHz.How do I accomplish this?

[RKeat.1]

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[Tesla DeLorean]

I'd suppose you'd have to change the PLL, LTDC or DSI clock settings when you enter Low Power mode. Id expect them to stop in STANDBY

[MM..1]

Open CubeMX wizard Clock config and locate DSI CLK