I tried to use Timer2 in Capture Mode, I have to measure frequency from 8 to 10 KHz. I used the following code but no way to work. To set Timer2 T2CON=9; T2MOD=0; TL2=0; TH2=0; RCAP2L=0; RCAP2H=0; TR2=1; in the main loop while(!EXF2); now i suppose to fine value in RCAP2L e RCAP2H but nothing. Frequency to measure arrives to P1.1 (T2EX). Is it correct? Thank you very much Raffaele