Thank you. I got it working.
Now, I have different question about timers: In input capture mode, is there always the latest captured signal edge's timestamp available, even reading/handling of some edges is skipped?
Quote from timer cookbook:
.......
The detection of an active edge on the output of the channel prescaler triggers the transfer of the timer counter content to the “y�? register of the TIMx_CCRy timer channel. The content of the “y�? register of the TIMx_CCRy timer channel is the timestamp of the last detected active edge on the output of the channel “y�? prescaler.
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I have implemented masking of the input signal so that there is a boolean variable, which tells if edges are handled or not. So inside the interrupt handler, there is first this if-statement, in which the variable is checked and all the code is located inside this conditionally executed if-branch. So if variable is set, nothing is done (e.g. no read out of the timestamp). My concern is that then when the variable allows interrupt to handled after masking, is the timestamp from this latest event and those masked ones are lost and they don't cause any issues afterwards?
