----- Original Message ----- From: "Tony Nixon" To: Sent: Monday, March 11, 2002 1:42 PM Subject: Re: [PIC]: In Circuit Programming - 16F877 using MCLR only > Bob Ammerman wrote: > > > > Note that by the nature of this scheme not all bauds are created equal. Some > > will take less time than others. I wonder if that could be taken advantage > > of... > > > > You could also have an 'out-of-band' signal by using extra long bauds, for > > example to indicate that no more data is coming. > > > > I wonder how reliable this could be and whether any sort of forward error > > correction would be needed to really get it to work. > > What about verification?? With a FEC scheme you could be quite sure the chip got the right stuff. If the design contains any user interface elements at all (LED, LCD, etc) then the bootloader could perform a checksum/crc across the application and blink an LED, or some such. Bob Ammerman RAm Systems > -- > Best regards > > Tony > > mICros > http://www.bubblesoftonline.com > mailto:sales@bubblesoftonline.com > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body