WIRELESSMBUSEK Silicon Laboratories Inc, WIRELESSMBUSEK Datasheet - Page 11

• 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

10. Si4431 Wireless M-Bus Development Platform
The Si4431 Wireless M-Bus Development Platform requires the purchase of the following items:
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The Basic setup is shown in Figure 7.
The SDBC-DK3 EZRadioPRO Wireless Development Kit includes test cards for the +20 dB Si4432. These can be
used for M-Bus development, but the power will be too high. Note that the M-Bus stack requires the B1 revision of
the Si4431/2; so, an older version of the Si4432 cannot be used.
The first Software Development Board (SDB) functions as the transmitter or “Meter” device. The second SDB
functions as a receiver or “Other” device. The third SDB is used for an optional sniffer. The sniffer board is not
absolutely necessary but is very useful for debugging.
The Wireless M-Bus stack requires that the shut-down (SDN) pin of the radio must be connected to P0.7 on the
MCU; so, some small modification of the SDB is required. Cut the trace on Shorting Jumper SJ11 between Pins 2
and 3. Short Pins 1 and 2 using a 0  805 resistor, wire, or solder bridge.
The hardware_defs.h file (included in the Wireless M-Bus stack source code) provides a hardware abstraction
layer for the M-Bus stack. The hardware_defs.h file should be edited to select the desired hardware platform before
using. Define the Si4431 software development board and comment out the other hardware options.
Three SDBC-DK3 EZRadioPRO Wireless Development Kits
Three 4431-DKDB3 - Si4431 +13 dB High-Band Test Cards
Two EC3 -USB Debug Adapters
One Supported Unlimited Compiler (Keil, Raisonance, or SDCC)
PC
EZRadioPRO
SDB
Si4431-B1
Test Card
IDE
Figure 7. Si4431 Wireless M-Bus Development Platform
MBbusPhyTx
MBusPhyTx
Workspace
Firmware
Adapter
Debug
USB
EZRadioPRO
SDB
Si4431-B1
Test Card
IDE
Rev. 0.1
MBusPhyRx
MBusPhyRx
Workspace
Firmware
Adapter
Debug
USB
Wi reless M-Bus-EK
EZRadioPRO
SDB
Si4431-B1
Test Card
MBusSniffer
Terminal
Firmware
Hyper-
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