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TMP104EVM Hardware
3.4 TMP104EVM Features
This section describes some of the hardware features present on the TMP104EVM test board.
3.4.1 External Power and Communication Headers
The TMP104 Test Board features test points to provide external power and monitor the one-wire UART
protocol. It is recommended that the SM-USB-DIG should not be attached when external power and
communication are used.
The TMP104EVM also has SDA and SCL test points to monitor the I
2
C bus between the SM-USB-DIG
and the TMP104 Test Board.
3.4.2 MSP430F2112
The TMP104 Test Board has an MSP430F2112 microcontroller that converts I
2
C commands from the
SM-USB-DIG into UART commands to read from and write to the TMP104s.
3.4.3 10-Pin Connector Ribbon Extender (Optional)
The TMP104EVM kit ships with an optional ribbon cable for extending the connection between the
SM-USB-DIG and the PCB. This extension cable can be useful if high temperature tests must be run on
the test board, because the SM-USB-DIG is not rated for high temperatures. To connect the ribbon cable,
attach the cable to the EVM and SM-USB-DIG, as shown in
Figure 7 .
Figure 7. 10-Pin Ribbon Cable Extender
7 SBOU118 – October 2011 TMP104EVM Evaluation Board and Software Tutorial
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