I've created a LED Blink Project in CodeWarrior 10.6, using Processor Expert as described in the help section under Processor Expert Tutorials.It works beautifully. I've now extended the project by adding component AsynchroSerial. I can send characters out no problem. But what I would like to do is use printf and all the other standard io functions. When I try to include these headers there seems to be no end to errors. I am unsure if they are even compatible with the code generated by processor expert. So before I dent my forehead too badly against my keyboard, can someone please tell me which headers to include, and how to include them in order to get to get printf to work.