how can i read pwm signals from an rc receiver and analyse them??

hello, i am building  a robot for my final year project, i want to control it using a remote called SANWA and a receiver RX600. I want to read pwm signals from the receiver pin to control my motors using myrio. I did  a code to read those signals but i can seem to analyse it in order to distingwish between different commands of the remote. Any help please?? i will uppload my code