NuMaker-M032BTAI
Apr. 19, 2022
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3.4 Power Supply Configuration
The NuMaker-M032BTAI is able to adopt multiple power supplies. External power sources include NU1
Vin (7 V to 12 V), V
DD
(depending on the target chip operating voltage), and PC through USB connector.
By using switches and voltage regulator, multiple power domains can be created on the NuMaker-
M032BTAI.
3.4.1
VIN Power Source
Table 3-4 presents the Vin power source.
Connector
Net Name in
Schematic
Description
NU1 pin8
NU1_VIN
Board external power source, with voltage range from 7
V to 12 V. The voltage regulator UP2 converts the NU1
pin8 input voltage to 5 V and supplies it to NU1_5VCC.
Table 3-4 Vin Power Source
3.4.2
5 V Power Sources
Table 3-5 presents the 5 V power sources.
Connector
Net Name in
Schematic
Description
ICEJ3
USB_HS_VBUS
ICE USB connector supplies 5 V power from PC to
M032BTAI target board and Nu-Link2-Me.
J2
USB_VBUS
USB connector on NuMaker-M032BTAI supplies 5 V
power from PC to M032BTAI target board and Nu-Link2-
Me.
NU1 pin5
NU1_5VCC
ICEJ3, J2 or NU1 pin8 supplies 5 V power to NU1 pin5.
NU1 pin5 supplies 5 V power to target chip or Arduino
adapter board.
Note:
M032BT operating voltage range is from 1.8 V to
3.6 V. Do not switch SW2.1 (NU1 5VCC) to ON.
Table 3-5 5V Power Sources
