Writing and customising a driver for flash memory

Flash memory is now in integral part of most of today's design solutions. H owever, a problem that faces system designers is it does not have a standar d interface. While the Common Flash interface (CFI) initiative looks at the characteristics such as geometry it is not an algorithm, and it does not d eal with such things as data bus widths, all of which means that the develo pers of Flash based file systems must write there own drivers. Here, the ke y elements and the approach to writing and customising a Flash driver are d iscussed.