How to write a Matlab Code for Continuous-Discrete Extended Kalman Filter?

Most of the codes and support of EKF available at Mathworks consists of discrete/discrete EKF where the system model and measurement models are both discrete. I have to work on a continuous-discrete EKF because my system model consists on differential equations while the measurement model is a discrete one. Please help me in this regard. A sample of a script for this case will be highly beneficial.