Hi,
I have some question about the filter mode of TIM.
1. The up/down counter mode with rising edge, after F_OUT reaches High level, does the FLT_CNT decremented?
2. The Hold counter mode with rising edge, after F_OUT reaches High level, how does the FLT_CNT reset? If the cnt can't be reset, does it means the filter only can work one time?
Best Regards
Jamber
Solved! Go to Solution.
1) I think functionality clearly follows following statement.
2) I seems to be shown in mixed mode description where detection of falling edge is apparently in de-glitch counter propagation mode with hold counter and reset after F_OUT is set.
1) I think functionality clearly follows following statement.
2) I seems to be shown in mixed mode description where detection of falling edge is apparently in de-glitch counter propagation mode with hold counter and reset after F_OUT is set.
Hi, David
Thank you for your reply, I see the description and fig in usermanual.
The falling edge shown in Figure 10-7 is filtered with up/down counter mode. The moment of you marked in red box, after the FLT_CNT reaches FLT_FE, the FLT_CNT reset to 0. I can't find any explicit description about this behaior in UserManual, and it is contradictory with Figure 10-5.
According to Figure 10-7, Figure10-5 should be like this:
and Figure 10-6 should be like this:
Is my description right?
Best Regards
Jamber