Microchip Technology ATtiny817 Xplained Pro, Руководство пользователя

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4.6 Embedded Debugger Implementation
ATtiny817 Xplained Mini contains a Mini Embedded Debugger (mEDBG) that can be used to program the ATtiny817
using Unified Program and Debug Interface (UPDI). The mEDBG also includes a Virtual Com port interface over
UART. Atmel Studio can be used as a front end for the Mini Embedded Debugger.
4.6.1 Unified Program and Debug Interface
The Unified Program and Debug Interface (UPDI) uses one pin to communicate with the target.
Table 4-11. UPDI Connections
ATtiny817 Pin Function Shared Functionality
PA0 UPDI program/debug mEDBG and J201 (N.M 0-ohm)
4.6.2 Virtual COM Port
The Embedded Debugger acts as a Virtual Com Port gateway by using one of the ATtiny817 UARTs.
Table 4-12. Virtual COM Port Connections
ATtiny817 Pin Function Shared Functionality
PB2 UART TXD (ATtiny817 TX line) mEDBG CDC RX and J202
PB3 UART RXD (ATtiny817 RX line) mEDBG CDC TX and J202
ATtiny817 Xplained Mini
Hardware User Guide
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2019 Microchip Technology Inc.
User Guide
DS50002657B-page 18