AVR-Chat

At 12:52 AM 3/07/2008, you wrote:
>  Now, FLIP works on
>the principle that there is a HWB pin on AT90USBxxx chips. Doesn't
>that mean that there's a bootloader?

That will teach me to talk about chips I don't use. :-[
As a self inflicted punishment I had look up the data sheet:

Optional Boot Code Section with Independent Lock Bits

• USB boot-loader programmed by default in the factory **********

  • In-System Programming by on-chip Boot Program 
hardware-activated after reset

So looks like the USB type chips have a pre programmed BL.

Didn't know that it only has DW for debugging so the Dragon
or a JTAG Mk2 are the only tools available.


Regards

John Samperi

********************************************************
Ampertronics Pty. Ltd.
11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA
Tel. (02) 9674-6495       Fax (02) 9674-8745
Email: john@ampertronics.com.au
Website  http://www.ampertronics.com.au
*Electronic Design * Custom Products * Contract Assembly
********************************************************