17.7 Programming and Debug Ports

For programming and/or debugging the SAM R30, the device should be connected using the Serial Wire Debug, SWD, interface. Currently the SWD interface is supported by several Microchip and third party programmers and debuggers, like the Atmel-ICE, SAM-ICE or SAM R30 Xplained Pro (SAM R30 evaluation kit) Embedded Debugger.

Refer to the Atmel-ICE, SAM-ICE or SAM R30 Xplained Pro user guides for details on debugging and programming connections and options. For connecting to any other programming or debugging tool, refer to that specific programmer or debugger’s user guide.

The SAM R30 Xplained Pro evaluation board supports programming and debugging through the onboard embedded debugger so no external programmer or debugger is needed.

Note: A pull-up resistor on the SWCLK pin is critical for reliable operation. Refer to related link for more information.
Figure 17-11. SWCLK Circuit Connections
Table 17-7. SWCLK Circuit Connections
Pin Name Description Recommended Pin Connection
SWCLK Serial wire clock pin Pull-up resistor 1kΩ