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3.4 HW Module Description and Jumper settings
3.4.1 Power Module
EV-board has 4 kinds of power supply for user to choose. Please read below instructions before us-
ing.
The following two power supplies are recommended. Please follow the settings below,
4 AA batteries from BT1 on
the back of the EV-board.
9V DC from CN6
• DC Adaptor: 9V DC:
Output voltage: 9V
Connection: Connector (CN6)
• Battery:
QTY: 4PCS;
Model: AA;
Nominal voltage: 1.5V.
Connection: Socket for Battery
• External Power Supply:
There are 2 test points (TP1&2) on EV-board which can supply power to target board (EV-
board).
Power on method: short L3 on EV-board; then connect anode of DC power to TP1 (MCU Vcc)
and cathode to TP2 (MCU GND).
• USB cable:
The Mini-B USB receptacle is only for supplying power to EV board by PC USB port. The
current and power of this method is limited in 100mA/0.5W.
Please make sure to supply stable power via the Mini-B USB receptacle while operation.
If any of the power supplies is connected to the EV-board correctly, power LED (LED5) on
the EV-board will be on. Refer to Figure 12.
Power supply
9V
J1
BAT.
LED5
Figure 12 Power Module
Table 1 Power Supply Selection
Header name
J1: BAT.
J1: 9V.
CN6
CN7
Settings
9V
J1
BAT.
9V
J1
BAT.
11
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