> 3 | Generic Firmware Update

> This chapter gives advice on how to develop a utility dedicated for downloading firmware over the serial interfaces ASC0 or ASC1 or the USB interface into the module’s flash memory.
> Designed according to these guidelines, the gWinSwup program supplied by Siemens is an example of a ready-to-use download program which integrates the firmware *.usf file and meets the requirements specified below.