Figure 4-4. Current Measurement
VCC_TARGET
VCC_BOARD
Remove
0-Ohm resistor
4.4
Disconnecting mEDBG
The target controller ATtiny817 can be completely separated from the mEDBG, but this requires some small
modifications to the board using a soldering iron. By removing the resistors in the sections shown in the figure below,
the mEDBG is completely disconnected from the target controller. To reconnect the mEDBG again, solder in 0Ω
resistors or solder in 100-mil headers on the header footprints and use wire-straps to connect the interfaces.
Figure 4-5. Kit Modifications
Power
disconnect
UPDI
disconnect
CDC
disconnect
Table 4-7. mEDBG Connections
Designator
Mounted
From (mEDBG)
To (ATtiny817)
R104
Yes
VCC_BOARD
VCC_TARGET
R203
Yes
UPDI
PA0 UPDI / RESET
ATtiny817 Xplained Mini
Hardware User Guide
©
2019 Microchip Technology Inc.
User Guide
DS50002657B-page 16
