An effective approach for generating continual chaotic system by using the Digital Signal Processor(DSP) is presented in this paper. Taking the Jerk system as an example

we introduced how to implement using the DSP device

and designed analog hardware circuit. Then

the experimental results of analog and digital are given respectively at the same time. The two results are in good agreement. This confirms the feasibility of our method. A number of experiments show that this method can also be applied to other continual systems. It is convenient

flexible and easy to use in digital secure communication.