Texas Instruments Performance Development Kit for 18-Bit, 1 MSPS, Serial Interface SAR ADC ADS8881EVM-PDK ADS8881EVM-PDK Scheda Tecnica
Codici prodotto
ADS8881EVM-PDK
PDK Kit Operation
7.4
Loading Test Plug-in
Once the ADS8881EVM plug-in is configured, one of the four test plug-ins must be loaded to acquire data.
Using the drop-down Test menu, as shown in
Using the drop-down Test menu, as shown in
. Note that only one Test plug-in can be loaded at
a time. If a different plug-in is selected, the previous plug-in is unloaded.
Figure 11. ADCPro Test Plug-ins
There are four different test options available for the ADS8881EVM:
•
Data monitor: This test acquires data and exports it in table format as hexadecimal data.
•
MultiFFT: This test allows the user to acquire data and create an FFT graph of power vs. frequency to
display data.
display data.
•
MultiHistogram: This option acquires data and creates a histogram of code values.
•
MultiScope: This feature acquires data and displays it in a graph of voltage vs. time.
For further details regarding how to set up and use the various test plug-ins, refer to the ADCPro User's
Guide (literature number:
Guide (literature number:
).
7.5
Acquiring Data
Once the ADS8881EVM is configured for the desired test scenario, press the Acquire button to start the
data collection process; the software collects the number of data points specified in the Test plug-in Block
Size control. While acquiring data, the ADS8881EVM plug-in disables all front panel controls, and the
collection process bar displays the completion progress.
data collection process; the software collects the number of data points specified in the Test plug-in Block
Size control. While acquiring data, the ADS8881EVM plug-in disables all front panel controls, and the
collection process bar displays the completion progress.
7.6
Troubleshooting
If the ADS8881EVM plug-in cannot find the ADS8881EVM-PDK, press the RESET button on the MMB0
and try again.
and try again.
If ADCPro stops responding while the ADS8881EVM-PDK is connected, shut down and restart the
ADCPro software. Also, try unplugging the USB cable from the PDK.
ADCPro software. Also, try unplugging the USB cable from the PDK.
13
SBAU211 – June 2013
ADS8881EVM-PDK
Copyright © 2013, Texas Instruments Incorporated