4.1.5.
Debug SWD Header J2
Serial Wire Debug Header is available on the board for Programming and Debugging ZigBit wireless
module.
Table 4-4. SWD Header J2
Pin on connector
ZigBit signal
1
VCC_P3V3
2
SWDIO
3
GND
4
SWDCLK
5
GND
6
NC
7
NC
8
NC
9
GND
10
RESET
4.2.
ATZB-SAMR21-XPRO Peripherals
4.2.1.
LED
There are three LEDs (Green, Red and Yellow colors) on the board that are controlled by ZigBit. Normally
the Green LED is used for Power supply indication and the other two LEDs are for User Application
indication.
4.2.2.
Button
There are two buttons. SW1 is to reset the ZigBit module and SW2 is for User Application.
Atmel ATZB-SAMR21-XPRO [USER GUIDE]
Atmel-42695A-ATZB-SAMR21-XPRO_User Guide-08/2016
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