Table of Contents
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This getting started guide reviews the contents of the
module (EVM430-FR6043)
evaluating and developing a gas flow meter solution. For detailed information on designing a gas flow
meter, please refer to the
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1.1
1.2
1.3
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4.1
4.2
4.3
4.4
4.5
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5.1
5.2
5.3
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15
16
Capturing Waveforms
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18
19
Single Shot Standard Deviation
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SLAU824 - June 2020
Submit Documentation Feedback
Quick Start Guide for Gas Flow Meter
and tells you how to quickly get started with the MSP430FR6043 device for
reference design for gas flow measurement (TIDM-02003)
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List of Figures
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Copyright © 2020, Texas Instruments Incorporated
MSP430FR6043 ultrasonic sensing evaluation
Contents
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Quick Start Guide
SLAU824 - June 2020
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Table of Contents
Related Manuals for Texas Instruments EVM430-FR6043
Summary of Contents for Texas Instruments EVM430-FR6043
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Page 1: Table Of Contents
....................... Flow Testing List of Figures ..........EVM430-FR6043 Connected to gas flow pipe (without ground can) ........EVM430-FR6043 connected to gas flow meter embedded in grounded can ..................EVM430-FR6043 Jumper Settings ................Uniflash: Select MSP430FR6043 Device ....................... Uniflash: Load Image ............ - Page 2 ......................Flow Rate Testing Trademarks Code Composer Studio is a trademark of Texas Instruments. IAR Embedded Workbench is a registered trademark of IAR Systems. All other trademarks are the property of their respective owners. Quick Start Guide for Gas Flow Meter SLAU824 –...
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Page 3: Introduction
The package includes: a. USS evaluation module (EVM) version 2.0 hardware that has the MSP430FR6043 device with interfaces to a transducer pair: http://www.ti.com/tool/EVM430-FR6043 b. A downloadable SW that runs on the MSP430FR6043 on the EVM430-FR6043: http://software- dl.ti.com/msp430/msp430_public_sw/mcu/msp430/USSSWLib/USSSWLibGas/latest/index_FDS.html. This has three different components: a. -
Page 4: Evm430-Fr6043 Connected To Gas Flow Pipe (Without Ground Can)
Connect the EVM to the Gas Flow Meter www.ti.com Figure 1. EVM430-FR6043 Connected to gas flow pipe (without ground can) 2. Connect the EVM430-FR6043 to the gas flow meter (see Figure 1). The pipe needs to be inserted in a metallic can to minimize noise. -
Page 5: Evm430-Fr6043 Connected To Gas Flow Meter Embedded In Grounded Can
Connect the EVM to the Gas Flow Meter www.ti.com Figure 2. EVM430-FR6043 connected to gas flow meter embedded in grounded can 3. Ensure the ends of the pipe are taped to ensure zero air flow during the initial bringup. That tape can be removed when the flow tests are conducted. -
Page 6: Flashing The Evm And Installing The Gui
Flashing the EVM and Installing the GUI www.ti.com Figure 3. EVM430-FR6043 Jumper Settings 5. Connect a USB cable from the PC to the EVM and verify that LED D201 (power good) is illuminated and LED D202 (HID enumeration) blinks on the EVM. -
Page 7: Uniflash: Select Msp430Fr6043 Device
7. Install the Ultrasonic Sensing Design Center GUI, which can be downloaded from http://software- dl.ti.com/msp430/msp430_public_sw/mcu/msp430/USSSWLib/USSSWLibGas/latest/index_FDS.html A shortcut named USS is installed to the Texas Instruments folder in the Windows Start menu to launch the Ultrasonic Sensing Design Center GUI. SLAU824 – June 2020... -
Page 8: Uss Gui
GUI used for this guide is 2.30.00.03 which is the latest GUI version available at the time of this publication. First select the correct EVM: EVM430-FR6043 & meter option of Gas using the Menu item: "Options"-> "Meter Options" as shown in Figure Figure 6. -
Page 9: Uss Gui Connected To Evm
USS GUI www.ti.com Figure 7. USS GUI Connected to EVM SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 10: Configuration Parameters
200 kHz transducers. These parameters control the excitation, amplification, and ADC capture time between the ultrasonic transducers connected to the platform. Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... - Page 11 The timing diagram for the configuration can be seen at the bottom of the GUI screen (see Figure 9). The timing diagram represented in this figure is representative and is not exact. SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated...
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Page 12: Configuration Timing Diagram
USS GUI www.ti.com Figure 9. Configuration Timing Diagram Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 13: Advanced Parameters Tab
The value depends on the shape of the signal and the envelope threshold. Developers can optionally set this value to zero and make their own adjustments of the absolute ToF in the application layer. SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 14: Representative Captured Waveform
The actual threshold value internally uses the correlation output. We also recommend to not modify the 50% threshold setting. Figure 11. Representative Captured Waveform Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... - Page 15 GUI Based Gain Control ✔ ✔ Transmit Frequency ✔ ✔ ✔ ✔ Envelope Crossing Threshold Capture Duration ✔ ✔ ✔ SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated...
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Page 16: Capturing The Adc Signals
Figure 14 shows an example where the gap is set too short. Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 17: Gap Between Pulse Start And Adc Capture Set Too Long
USS GUI www.ti.com Figure 13. Gap Between Pulse Start and ADC Capture Set Too Long SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 18: Gap Between Pulse Start And Adc Capture Set Too Short
Section • If the transducers are not connected properly to the EVM, the captured signal may look similar to Figure Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 19: Captured Adc Signal With Bad Connection
To save the capture, click the "Save Capture" button and provide a filename. To continuously capture to a file, click the "Continuous Capture" button and provide a filename. SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 20: Capturing Waveforms
After capturing waveforms for some time, you can save them to a file using the "Save Waveforms" button. The "Lock All" button stops updates, and the "Reset Graphs" button erases all previously captured data. Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 21: Frequency Response
# of captures can also be used but the procedure would take longer and can be used for better resolution. SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 22: Frequency Sweep Peak Amplitudes
The process for tuning the configuration to an optimal value can be summarized as follows: NOTE: Steps 1 to 3 should have already been completed in Section 4.3. Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... - Page 23 F2 should be increased further. Also, the choice of -35°C and 55°C depends on the gas meter requirements. SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated...
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Page 24: Meter Characterization
More detailed information on zero flow drift testing can be found in the Ultrasonic Sensing Metrology Subsystem Reference Design for Gas Flow Measurement design guide. Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... -
Page 25: Flow Testing
(instead of pushed) through the pipe. Also, the last step of nearly 5000 lph is due to limitation of the smallest voltage setting of the fan. SLAU824 – June 2020 Quick Start Guide for Gas Flow Meter Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated... - Page 26 For more details on gas flow testing, see the section 3.2.2.5 Flow Measurements in the TI Design Ultrasonic Sensing Metrology Subsystem Reference Design for Gas Flow Measurement design guide. Quick Start Guide for Gas Flow Meter SLAU824 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated...
- Page 27 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2020, Texas Instruments Incorporated...