Datasheet

UG-253 Evaluation Board User Guide
Rev. A | Page 6 of 16
MAIN WINDOW
Figure 4 shows the main window of the AD7291 evaluation
software. The device is configured via the COMMAND
REGISTER button.
Samples can be taken continuously or one at a time, depending
on whether CONTINUOUSLY SAMPLE or SAMPLE ADC is
selected.
The AD7291 has nine pairs of limit registers. Each pair stores
high and low conversion limits for each analog input channel
and the internal temperature sensor, which can be programmed
via the ALERT LIMITS SETUP button. If a limit is violated, the
ALERT A or ALERT B indicator turns red. Further details on
the alert limits can be ascertained at any time by clicking READ
ALERT STATUS.
The lower section of the window graphically displays AD7291
data. The tab setting in the data display window allows the user
to swap between displaying the ADC analog input channel
conversion results and the internal temperature sensor results.
Figure 4 depicts continuous analog input channel conversion
results for V
IN0
. Figure 4 shows the main panel with the TSENSE
RESULTS tab selected.
Enabling the FLASH LED button on this window causes the
orange LED1A on the SDP board to flash, which is a useful
debug tool.
09710-004
Figure 4. AD7291 Main Window Displaying TSENSE and TSENSE Average Results