Texas Instruments AFE4490 Evaluation Module AFE4490SPO2EVM AFE4490SPO2EVM Datenbogen
Produktcode
AFE4490SPO2EVM
Running the Software
4.1.1.5
Low Level Configuration Subtab
The Low Level Configuration subtab under the Device Configuration tab is used to directly configure the
various registers of the AFE44x0 devices. Refer to the AFE44x0 data sheet (
various registers of the AFE44x0 devices. Refer to the AFE44x0 data sheet (
) for the
register details of the chip.
shows the low-level configuration registers of the AFE44x0 devices. The Register Map portion
of the sub-tab shows the EVM default values of the registers after the GUI is loaded under the EVM
Default column. The LW* column shows the latest written values of the AFE44x0 register and the LR*
column shows the latest read values of the AFE44x0 registers. From the Register Map section, when any
register is selected, the bit-level details about the register are explained in the Register Description
section. The ability to read and write the register and modify the individual bits of the register are provided
in the Register Data section. The values of all the registers are read by clicking the Read All button.
Default column. The LW* column shows the latest written values of the AFE44x0 register and the LR*
column shows the latest read values of the AFE44x0 registers. From the Register Map section, when any
register is selected, the bit-level details about the register are explained in the Register Description
section. The ability to read and write the register and modify the individual bits of the register are provided
in the Register Data section. The values of all the registers are read by clicking the Read All button.
Click on Transfer Read to Write to copy the contents of the Read Data to Write Data. Then click on Write
Register to write to the data to the register of the AFE44x0.
Register to write to the data to the register of the AFE44x0.
By clicking on the Save Config button, the register configuration is saved to a configuration file. The
register configuration is loaded from a configuration file by clicking the Load Config button.
register configuration is loaded from a configuration file by clicking the Load Config button.
Figure 24. Device Configuration: Low Level Configuration
When a selection is made on any of the tabs on the GUI, multiple fields of various registers are modified.
Click on the lower-left corner of the GUI to view the registers that are modified when a selection is made.
Click on the lower-left corner of the GUI to view the registers that are modified when a selection is made.
4.1.2
ADC Capture and Analysis
The ADC Capture and Analysis tab consists of various analysis routines and displays. This tab is used to:
•
Set the capture mode to finite or continuous
•
Set the number of samples (block size) in Finite Capture mode
•
Set the display to volts or codes
•
Set the filter type to None or Notch
•
Set the Notch Freq to 50 or 60 Hz when the filter type is set to Notch
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AFE4400 and AFE4490 Development Guide
SLAU480A – January 2013 – Revised February 2013
Copyright © 2013, Texas Instruments Incorporated