I am using the LPC 2294 and trying to display messages through HyperTerminal, using printf in my main(). However, there is no display when I start loading and debugging my project. I made sure that I am using the correct serial port and HyperTerminal is connected correctly because I tried out the Hello demo and it works. The problem arises when I switch from external RAM to Flash. printf works on xRAM but not on flash. Why?