ATtiny817
Xplained Pro has a 10-pin 50-mil UPDI Debug
Connector that can be used to attach external debuggers to the ATtiny817.
Table 1. UPDI Debug Connector| UPDI Debug Connector Pin |
Pin/Net |
Function |
Shared Functionality |
|---|
| 1 |
- |
- |
|
| 2 |
GND |
Ground |
|
| 3 |
PA0 |
UPDI/RESET |
EDBG |
| 4 |
VCC_TARGET_P3V3 |
ATtiny817
voltage |
|
| 5 |
- |
- |
|
| 6 |
PC5 |
- |
SW1 and EXT3 |
| 7 |
- |
- |
|
| 8 |
- |
- |
|
| 9 |
- |
- |
|
| 10 |
- |
- |
|
Notes: - 1.PA0 is by default configured as
UPDI. PA0 can be fused to be RESET or GPIO, but this is prevented by the EDBG,
as this will disable all further programming and debugging by the EDBG.
- 2.Even though PC5 is connected to
the UPDI debug connector, this pin is not used for programming or
debugging.