Hello,
I'm working with a LPC54S018-EVK board, and I want to use the frequency measurement function to measure the frequency of a external input clock.
I am using the SDK example working with the FMEAS driver and it is working well to measure the internal clocks target.
In the 'pins tool' I have routed the pin D4 to SYSCON FREQME functionnality and in the code I launch the example with "kINPUTMUX_FreqmeGpioClk_a" as target clockand I let the main clock as clock reference, but it doesn't work, the measure never complete.
I can't see what I miss or did wrong, any idea ?
Thx
Yoann
Ok for me,
The target clock was not running and that's why it didn't complete what is a bit disturbing because the reference clock is running I expected to get 0 as result.
Fortunately I see this comment on the online API :
Hi, @Yoann
Thank you for your sharing. I will feedback your opinions to the document team.
Best regards, Alex