1.
No current measurement or external MCU current measurement
: The XAM is bypassed and, thus, the
MCU and peripherals are supplied directly by the regulator. Set both jumpers in the “BYPASS” position. In this
configuration, it is also possible to connect external measurement tools on the Xplained Pro MCU power
measurement header to measure the MCU current directly instead of using the XAM.
2.
MCU current measurement
: The XAM measures only the MCU current while the peripherals are supplied
directly by the regulator. For this configuration, place the jumper for “I/O” (peripherals) into the “BYPASS”
position and the “MCU” into the “MEASURE” position.
3.
Peripherals measurement
: The XAM measures only the peripherals’ current while the MCU is directly
supplied by the regulator. For this configuration, place the jumper for “MCU” into the “BYPASS” position and
the “I/O” jumper into the “MEASURE” position.
4.
MCU and peripherals measurement
: In this configuration, both the MCU and the peripherals are measured
by the XAM. Place both jumpers on the “I/O” and “MCU” headers in the “MEASURE” position.
4.5
Kit Modifications
ATtiny3217 Xplained Pro has several resistors that can be used to disconnect I/O pins of the ATtiny3217 from
connectors and on-board ICs and to disconnect power signals.
Info:
Note that some resistors aren't mounted by default on the kit listed in the table below.
Table 4-13. Kit Modifications
Designat
or
Value
Mounted From
To
Comment
J100
cut-strap
N/A
VCC_P3V3
VCC_P3V3_CM_IN
ATtiny3217, peripherals, and
connectors power supply
R107
0R
Yes
U100 OUT
VCC_CM_P3V3
XAM power supply
R108
0R
Yes
U100 OUT
VCC_EDBG_P3V3
EDBG power supply
R302
10k
Yes
QT BTN1
PA6 AIN6
Onboard QTouch buttons to the
ATtiny3217
R305
10k
Yes
QT BTN2
PA7 AIN7
R307
0R
Yes
PB2 UART TXD
PB2
EDBG CDC and UART on
extension headers to the
ATtiny3217
R308
0R
Yes
PB3 UART RXD
PB3
R309
0R
Yes
SW1
PC5
Mechanical button SW1
R312
0R
No
PB3 TOSC1
PB3
32.768 kHz crystal to the
ATtiny3217
R313
0R
No
PB2 TOSC2
PB2
R404
0R
Yes
EDBG UPDI
PA0 UDPI RST
Debug interface from the EDBG
to the ATtiny3217
ATtiny3217 Xplained Pro
Hardware User Guide
©
2020 Microchip Technology Inc.
User Guide
DS50002765B-page 19
