Posted on April 26, 2014 at 23:23ok I think I understand that diagrram now, or at least the bit of it that goes
HSE/HSI/PLLCLK -> AHB PRESC -> if(APBx presc = 1x1, else x2) -> APBx timer clocks.
I'd tried to study diagram that a while back when I was much more of a beginner and was utterly baffled. My understanding of the clocks is that a few different, options HSE, LSE and something else I can't remember off the top of my head can be chosen as the system clock, then all other clocks are derivative of that. I would have expected the clock tree diagram to look more like a family tree though.. ie, one or more sources at the top like ancestors, then each of those producing a derivative ones, which produce generations derivative generations.
Clive, do you think you could point out to me where the 'top generation', ie the HSE oscillator would be found in this clock diagram? I think if I get that I can get closer to understanding the whole thing. Just a quadrant of it with a label, you don't have to be too specific.
