I am currently working with an STM32H747XIH6-DISCO and am stuck on how to get my DMA to trigger from an external clock source. I was going to set up a periodic DMA from a timer, but I'd like that timer driven by a 10-ish Mhz external clock. How could I?

[waclawek.jan]

The timer section in UM describes how to use external clock, just follow that description.

JW

[thoughtbot]

I came here because the UM doesn't make sense to me in that regard.