when using mpc5574 ic(144pin) etimer module, configuration as pictures shows above, I want to count rising edge of the input signal, but it seems that the count regs did not work at all(always equals 0). I want to know if the configuration about etimer is right? rtimer1 ch4 is selected, and input 4 pin is SECSRC , input field of control2 register changes between 0 and 1. PRISRC was first configured as IP Bus clock divide by 2 prescaler(11001), now configured input 4 pin, to ensure edge exist.
I want to know why the counter don't work.
Thank u in advance.