LMT01 Setup and Operation
Figure 11. Temperature Change by Pressing Finger on LMT01
3.2
Pulse Train Measurement Methods
The LMT01EVM GUI comes with 12 methods of measuring the output pulse train from the LMT01. The
user can select which measurement method to use for their application. The nomenclatures of these
methods are described below:
•
Transistor Mode: The LMT01 output is level shifted with a transistor to valid logic levels for the
MSP430
•
Comparator Mode: The LMT01 output is fed into the integrate comparator of the MSP430 and
compared to a programmable voltage level to determine logic high and low
•
Synchronous Mode: Power is applied to the LMT01 before a temperature measurement is taken and
removed immediately afterwards
•
Asynchronous Mode: The MSP430 is turned on and temperature measurements can be taken any time
More informational about the 12 different modes and their implementations can be found in the LMT01
installation directory in the Firmware folder.
12
LMT01EVM
SNIU027A – March 2015 – Revised October 2015
Copyright © 2015, Texas Instruments Incorporated
