I am developing a networked product that will use an RS485 network for communications. I would like to know if there is any way I can do field firmware updates over the RS485 network. In other words, can the device program itself and what would be the best way to do this? Roger __________________________________________________ Do You Yahoo!? Send instant messages & get email alerts with Yahoo! Messenger. http://im.yahoo.com/ -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu