WIRELESSMBUSEK Silicon Laboratories Inc, WIRELESSMBUSEK Datasheet - Page 6

• Manufacturer Part Number: WIRELESSMBUSEK
• Description: WIRELESS MBUS DEV. KIT
• Manufacturer: Silicon Laboratories Inc
• Type: Transceiver, Microcontrollerr

Specifications of WIRELESSMBUSEK

• Mfg Application Notes: Wireless M-Bus Stack Programmers Guide Wireless M-Bus Software Implementation
• Frequency: 868MHz
• Input Voltage: 3.6 V
• Interface Type: USB, SPI, UART
• Operating Supply Voltage: 3.6 V
• Product: Power Management Modules
• For Use With/related Products: Si4431
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1896

Wireless M-Bus-EK
7. Hardware Setup
Please install the USBXpress drivers before connecting the Wireless M-Bus demo board to the PC (see “6. Install
USBXpress Driver”).
The Wireless M-Bus Demo Board has three headers on the left side of the board to configure the C8051F342 and
C8051F930 power sources.
To configure both MCUs to operate from USB power, configure the headers as shown in Figure 5.
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The headers in the middle of the board provide options for measuring the current of the C8051F930 MCU, Si4431
EZRadioPRO, and CP2400 LCD Controller.
To configure the Monitor circuit to include the MCU and radio current, install the headers as shown inFigure 5.
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After configuring the headers, connect one end of the USB cable to the Wireless M-Bus demo Board and the other
end to the PC. The first time the Wireless M-Bus demo board is connected to the computer, the Found New
Hardware wizard will indicate “Found New Hardware - USBXpress Device”. If the Found New Hardware wizard
fails to correctly identify the USBXpress device, ensure that the USBXpress drivers are installed correctly as
explained in “6. Install USBXpress Driver”.
6
Configure shorting blocks to short pins 2 and 3 on J10.
Remove shorting block on J11.
Configure shorting blocks to short pins 1 and 2 of J12.
Short pins 1 and 2 on J5 with a shorting block.
Remove shorting block on J6 to enable 1  resistor.
Short pins 2 and 3 on J7 to enable MCU current measurement.
Short pins 2 and 3 on J8 to enable radio current measurement.
Short pins 1 and 2 on J9 to disable LCD current measurement.
Short pins 2 and 3 on J13 to power the CP2400 from the meter supply.
SW3
U5
CP2400
DIS2
J1
J10
J11
J12
J2
U4
F342
Figure 5. USB Power Configuration
J4
J6
J5
Rev. 0.1
U3
CP2400
SW2
Monitor Meter
DIS1
J8
J7
J9
J13
U2
J3
F930
Wireless M-Bus Demo Board
SW1
U1
SILICON LABS
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ANT1