ADIS16228 Evaluation Tutorials - Analog Devices · EVALUATION TOOLS/PHYSICAL SETUP SOFTWARE:...
Transcript of ADIS16228 Evaluation Tutorials - Analog Devices · EVALUATION TOOLS/PHYSICAL SETUP SOFTWARE:...
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ADIS16228 Evaluation Tutorials
Manual FFT, Multiple Sample Rates/Records, Alarms
January 23, 2014
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INTRODUCTION
OBJECTIVE:Demonstrate the Spectral Alarm function and Multi-Sample
Rate/Record functions in the ADIS16228, using the Vibration Evaluation Program.
INITIAL CONDITIONSFactory-default register settings, unless specified otherwise
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EVALUATION TOOLS/PHYSICAL SETUP
SOFTWARE:Vibration Evaluation Program, v1.1.9 and v1.2.0
HARDWARE:
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EVAL-ADIS
ADIS16228/PCBZ
4” ribbon cable1mm, 16-pin
Vibration source
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SUMMARY OF STEPS
Launch softwareSet Device = ‘ADIS16228’Select ‘Manual FFT Mode’ (Main Window)Configure registers (Register Access Window)Copy register settings to the ADIS16228’s flash memory
(Register Access Window)Configure & Enable AlarmsTrigger and display four different FFT results (Main Window)Change vertical scale settings to optimize use of the screen
area (Main Window)
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Launch software & Set Device = ADIS16228
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Select mode & Launch Register Access Window
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NOTES:
• Setting Mode Selection to Manual FFT is the equivalent of setting REC_CTRL1[1:0] = 00
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Register Settings
For a tutorial on configuring register values, click on “Back” and then click on the “ADIS16228 Register Configuration Tutorial.”
Using these steps, establish the following register settings:REC_CTRL1 = 0x1F01Hanning Window, Enable SR0/1/2/3, Automatic FFT Mode
REC_CTRL2 = 0x00FFSet range on SR0/1/2/3 to 1g
REC_PRD = 0x00044 seconds between each trigger
AVG_CNT = 0x6420 only the last four bits matters for this exercise
ALM_CTRL = 0x0087The “7” enables alarms for all three axes
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Click on “Alarms>Alarm Settings”
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NOTES:
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Click on “Read Default Values”
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NOTES:
• The Vibration Evaluation Program has a set of “default” alarm values, for the purpose of demonstration.
• These values are used to simplify this demonstration.
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Click on “Write to DUT”
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NOTES:
• After seeing the values update for all of the sample rates and bands, write these values to the ADIS16228CMLZ.
• A yellow box will appear for a few moments, indicating that the communication of this data is ongoing. It will disappear when the communication process is complete.
• Exit this Window
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Click on “Alarms>Alarm Status Form”
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NOTES:
• Drag the Alarm Status Window to a convenientplace for viewing, which does not impede clicking on the Start button.
• Click on Start to acquire a spectral record (FFT result).
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Click on “Start”
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NOTES:
• Notice that all of the status flags are green.
• This indicates that all alarms are passing.
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Right click in waveforms to adjust scale
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NOTES:
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Right click in waveforms to adjust scale
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NOTES:
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Click on Start
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NOTES:
• Notice that the frequency range has changed, since the ADIS is now cycling through each SRx setting
• This graphic shows SR1, which supports a sample rate of 5120 SPS and a Nyquist range of 2560 Hz, as the red arrow highlights.
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Click on Start
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NOTES:
• Notice that the frequency range has changed, since the ADIS is now cycling through each SRx setting
• This graphic shows SR2, which supports a sample rate of 1280 SPS and a Nyquist range of 640 Hz, as the red arrow highlights.
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Click on Start
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NOTES:
• Notice that the frequency range has changed, since the ADIS is now cycling through each SRx setting
• This graphic shows SR3, which supports a sample rate of 320 SPS and a Nyquist range of 160 Hz, as the red arrow highlights.
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Click on Start
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NOTES:
• Notice that the frequency range has changed, since the ADIS is now cycling through each SRx setting
• This graphic shows SR0, which supports a sample rate of 20480 SPS and a Nyquist range of 10240 Hz, as the red arrow highlights.
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Add Vibration, then cycle through each sample rate setting by clicking Start
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NOTES:
• SR0 Setting• Sample rate = 20480 SPS• Only one warning alarm
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Add Vibration, then cycle through each sample rate setting by clicking Start
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NOTES:
• SR1 Setting• Sample rate = 5120 SPS• Vibration energy overlaps
with the first alarm band
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Add Vibration, then cycle through each sample rate setting by clicking Start
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NOTES:
• SR2 Setting• Sample rate = 1280 SPS • Notice how the primary
vibration has moved into the first alarm band
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Add Vibration, then cycle through each sample rate setting by clicking Start
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NOTES:
• SR3 Setting• Sample rate = 320 SPS• The vibration energy is
now in the second alarm band
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Thank you!
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Guide. Good luck in your project!
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