Simple write/read using the SPI flash on the ADSP-BF706 EZ Kit

Here is a simple demonstration program, adapted from the POST-program, for writing data to and reading data from the W25Q32 flash memory on the ADSP-BF706 EZ Kit. Actually, there is still a lot of redundancy since it uses a number of files that could all be condensed into a few lines of code. But at least it shows how to do it. To follow: fully optimised flash memory routines in c and assembly.