As Rick Mann wrote: > Ah, I thought, based on your description, the perhaps debugging > could be accomplished via USB.
I think that's the way CMSIS-DAP is intended for ARM devices. ARM markets it as an IP block that can be integrated into an ARM design. In this case, however, it's implemented in the EDBG chip (a custom UC3 AVR32 microcontroller tailored for the purpose) which is part of the Atmel-ICE or Xplained Pro Evaluation board. (The UC3 on the JTAGICE3 serves the same purpose.) CMSIS-DAP allows for additional vendor-specific commands, and that's how Atmel implemented the AVR part of the protocol. -- cheers, Joerg .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ Never trust an operating system you don't have sources for. ;-) _______________________________________________ avrdude-dev mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/avrdude-dev
