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SAMR21 Fiches technique(PDF) 17 Page - ATMEL Corporation

No de pièce SAMR21
Description  SMART ARM-based Microcontrollers
PDF  31 Pages
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Fabricant  ATMEL [ATMEL Corporation]
Site Internet  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

SAMR21 Fiches technique(HTML) 17 Page - ATMEL Corporation

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Figure 4-1. 1.8V Operation Modifications
4.4.
Embedded Debugger Implementation
SAM R21 Xplained Pro contains an Embedded Debugger (EDBG) that can be used to program and
debug the ATSAMR21G18A using Serial Wire Debug (SWD). The Embedded Debugger also include a
Virtual Com port interface over UART, an Atmel Data Gateway Interface over SPI and TWI and it monitors
four of the SAM R21 GPIOs. Atmel Studio can be used as a front end for the Embedded Debugger.
4.4.1.
Serial Wire Debug
The Serial Wire Debug (SWD) use two pins to communicate with the target.
Table 4-11. SWD Connections
Pin on SAM R21
Function
PA30
SWD clock
PA31
SWD data
Related Links
Embedded Debugger on page 8
Atmel SAM R21 Xplained Pro [USER GUIDE]
Atmel-42243D-SAM-R21-Xplained-Pro_User Guide-04/2016
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