Welcome to the CS4156 (Intro. to Digital Signal Processing) home page.Click on the following links to go to that section of this page.
Some electronic material supplementary to Signal Processing First here
Some old exam questions.
With Intro. to Digital Signal Processing, however, the graft is more necessary in the early part of the semester. It is in the first 4 weeks that a lot of the foundations are laid for what follows. I promise you you will find that if you work hard at coming to terms with the material that the course draws on: discrete mathenatics and with the notion of asymptotic analysis (what happens to running time or memory usage when the no. of inputs to a program gets really huge), then it will make what follows easier.
I can't guarantee high marks but I can guarantee that you will find the remainder of the material more understandable and easier if you work hard at the foundation material.