To RECEIVE an AVR response from the EDBG, a AVR_RSP packet must be sent (ie: polling for responses)
The response to this send is:
Table 32. Unwrapping AVR_RSP
| Field | Size | Description |
|---|---|---|
| AVR_RSP | 1 byte | 0x81 |
| FragmentInfo | 1 byte | 0x00: More fragments required (m < n) 0x01: Full packet received, will be processed (m == n) |
| Size | 2 byte, MSB first | Number of response bytes |
| Response | N bytes | Enveloped AVR response |
FragmentInfo 0x00 indicates that no response data is available, and the rest of the packet is ignored.
Note that the "synchronous" nature of the AVR CMD-RSP functionality must be preserved even when running over this CMSIS-DAP wrapper – this means that every one command results in one and only one response, and that response must be read out before the following command can be issued.
