i am trying to get to low power mode in STM32L4R7AI and run a screen saver on the LCD-TFT in sleep mode

[Tbear.1]

i have two questions

how can i lower the CPU frequancy so the power consumption will be lower - where can i configure this?

and the second is how can i place the CPU in sleep mode and still show a screen saver on my display - thus reducing the power consumption in sleep mode?

how low can i go in this situation in the power consumption?

thanks in advance

[MM..1]

LCD-TFT not define how you comunicate with display, and too how is your screensaver. Some type of displays have framebuffer and can offload MCU = work when MCU is STOPed. SLEEP and STOP modes have more levels on L4 then you need use what you need... 🙂

[Tbear.1]

planned to connecte to the RGB interface, and was planning to use an external frame buffer for this

will that give me use of all the other power modes of the MCU?

how can i configure the CPU freq to lower the power? where is it controlled?

thanks