PC
DAC161S997EVM
Power
Supply
Ammeter
+
USB
Loop-
Loop+
-
+
-
EVM Setup
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SNLU146A – June 2013 – Revised February 2016
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DAC161S997EVM
2
EVM Setup
This section describes the jumpers and connectors on the EVM as well and how to properly connect, set
up, and use the DAC161S997EVM.
2.1
Input/Output Connector Description
1. J1 : Loop Connector. Loop+ and Loop- Pins.
2. J2 : JTAG Connector. Used to debug/flash on-board MSP430G2553
3. J3 : General Purpose I/O. Can be used to connect to a SPI-based Analog front end such as the
LMP90100 from TI’s SensorAFE family.
4. DAC_CUR: Power supply for DAC161S997. Short Pin1 and Pin2 to power-up DAC.
5. ERRLVL_SEL1: Pin2 connected to MSP430 (GPIO P2.4) for software control of Error level signal.
6. ERRLVL_SEL2: Pin2 connected to ERRLV pin of DAC161S997. Pin1 connected to COM and Pin3
Connected to VDD.
7. HART_TX1: HART transmit input connector. Can be connected to an external HART modem output.
8. HART_RX1: HART receive output connector. Can be connected to an external HART modem input.
2.2
EVM Connections
For proper operation of the DAC161S997EVM, first short the DAC_CUR pins and connect jumper
between Pin1 and Pin2 of ERRLVL_SEL2 jumpers (the EVM is shipped in this configuration).
The EVM is powered through the Loop supply. Connect Loop+ pin of J1 to Positive of the supply and
negative of the supply to positive terminal of ammeter and negative terminal of ammeter to Loop- pins.
This configuration will supply power to EVM and can measure the Loop current.
Figure 2. EVM Connection Diagram
3
Software Installation
It is recommended to use the latest version of DAC161S997 software; this can be downloaded from:
http://www.ti.com/product/dac161s997
. You must install the software before you connect the
DAC161S997EVM to your PC.
To install the DAC161S997EVM software:
•
Direct a browser to
http://www.ti.com/products/dac161s997
, then scroll down to the Tools & Software
section to download the latest DAC161S997 software.
•
Unzip the downloaded file from a known directory, and run the “setup.exe” in
/TI_DAC161S997_Installer/Volume/