I may help but wow you confused me and I need some clarification.
I would like TIM2 to count pulses on an external pin (PA0-WKUP) and when it has counteda fixed number (say 50) it cascades to TIM3.
What does that mean cascades? Should it increase TIM3??
In the meantime TIM3 is counting the internalclock
Well I guess my previous sentence is not valid if TIM3 is counting internal clock or should I add 1 to it?
When TIM2kicks TIM3, TIM3 interrupts and I can get its count.
And now reaching TIM2 to 50 triggers TIM3 I am really confused.
Dou you want behavior like this (measuring low frequency?):
TIM3 is counting internal clock. When TIM2 reaches 50 it zeroes itself and get reading of TIM3 counter?
Please put it in step by step instructions then i will work it out for you.
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