AN746
Rev. 0.1
3
2.3. Setting up and Connecting the LCD Base Board to a PC
Power source of the platform can be selected with the power-supply selector switch (SW1) on the base board. If
SW1 is in USB position, supply voltage is provided by the PC that is connected to the J7 mini USB connector. If
SW1 is in Battery position, the supply voltage is provided by three AA batteries in the battery holder on the bottom
side of the board. Current consumption of the RF part of the connected RF Pico Board (RFVDD) can be measured
on JP3. Since JP3 is shorted by a PCB track on the bottom side of the board, the user have to cut the track if this
feature is used.
Steps of connecting the platform to a PC:
Connect an RF Pico Board to the LCD base board through RFP1 and RFP2.
Select the desired power source with SW1 power selector switch.
Connect the LCD base board to an USB port of the PC.
Wait for Windows to install the driver of the debug interface if necessary.
Table 2. Pin Assignments
Si4012 C8051F930
Pin #
Pin Name
Pin Function
Pin #
Pin name
2
GND
Ground
Ground
5
VDD
Supply input
VDD
7
NIRQ
Interrupt status output, active low
20
P1.4
8
SDN
Shutdown input, active high
19
P1.5
9
SCL
SMBus clock input/output
25
P0.7
10
SDA
SMBus data input/output
26
P0.6
Summary of Contents for Si4012
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Page 18: ...AN746 18 Rev 0 1...
Page 29: ...AN746 Rev 0 1 29 NOTES...
