Hi, does anyone have any insight on how to change the clock source on the GPT to be higher than 24MHz? I see on page 2961 of the manual that I should be able to change the input to ipg_clk_highfreq but this still seems to run at 24MHz. From table 14-5 (page 1031) in the manual is seems to suggest that the IPG_CLK_ROOT should be able to run up to 150MHz but I am unsure how to change VDD_SOC_IN . Is this something that is fixed or can be changed?
What I am trying to do is capture the input time of an external signal to the highest precision possible, nanoseconds if possible. The input signal is MHz rates. I previously had an interrupt on the pin to save ARM_DWT_CYCCNT but I would prefer to do this in hardware to leave the processor free.
Does anyone have any insights or better ways to achieve this? Would a different timer be better suited?
I'm quite new to this so apologies if anything isn't clear!
What I am trying to do is capture the input time of an external signal to the highest precision possible, nanoseconds if possible. The input signal is MHz rates. I previously had an interrupt on the pin to save ARM_DWT_CYCCNT but I would prefer to do this in hardware to leave the processor free.
Does anyone have any insights or better ways to achieve this? Would a different timer be better suited?
I'm quite new to this so apologies if anything isn't clear!