Camera_CLK (XCLK/MCLK) Source in STM32F746G-DISC Board.

[Rajssss]

According to the schematics of the STM32F746G-DISC Board, the Camera_CLK pin in the Camera Connector need to sourced from OSC_24M, I couldn't find form where. There seems no internally used pins for this as for others in the schematics.

Someone please help me out with this.

[Piranha]

Can you see the X1 oscillator right next to that connector?

Can you use find/search to find the rest of OSC_24M connections?

[Rajssss]

Yeah, OSC_24M goes to REFCLK but I am not sure what is it.

and yeah I can see there's X1 oscillator there, but actually I am just getting started on cameras and never seen a dedicated oscillator for Camera clock.

So, do i need to configure or enable this oscillator while initializing the camera? if yes, how?

[Piranha · Accepted solution]

There is nothing specific to cameras or ST. It's just an oscillator and it's one of a ways how to provide a clock signal to something. And it's EN pin is already hardwired with a pull-up resistor to 3V3 line, so there is nothing to enable in software.

[Rajssss]

Yeah, thanks for clearing my doubts.