Writing To The Adc Configuration Register; Updating Diagnostic Results; Example Sequences - Analog Devices EVAL-AD5423SDZ User Manual

UG-1554

WRITING TO THE ADC CONFIGURATION REGISTER

The procedure to set up and configure the ADC input node is
discussed in the AD5423 data sheet. For this reason, writing to
the ADC configuration register through the Apply Changes
function is disabled.
The dropdown list in the SEQUENCE_COMMAND section
contains only an initiate single conversion command
(INITIATE_SINGLE_CON). The hexadecimal text box in the
SEQUENCE_DATA pane is unused and remains at 0. Use the
dropdown list in the ADC_IP_SELECT pane to select the desired
input node for the ADC to convert. Click Configure ADC to
initiate a write to the ADC configuration register. A register
read must be performed to see the ADC result in the status
register (see Figure 10).
Figure 10. AD5423 ADC Configuration Register
EVAL-AD5423SDZ

UPDATING DIAGNOSTIC RESULTS

The AD5423 has a digital diagnostic results register and an
analog diagnostic results register that contain error flags for the
on-chip digital and analog diagnostic features. Write 1 to the
respective error flags update the error flag status.
To update the digital and analog diagnostic result registers, click
Update and Readback. This button initiates a write of 1 to the
selected checkboxes and then reads back the updated diagnostic
result. Figure 11 shows the digital diagnostic results register.
Figure 12 shows the analog diagnostic results register.
Figure 11.
Figure 12.

EXAMPLE SEQUENCES

There are several example sequences available. Click Example
Sequences and the window shown in Figure 13 opens. To
enable any of the sequences, click the relevant sequence button,
as shown in Figure 14. The sequence runs immediately and the
output changes accordingly. To return to the main window, click
Back to the AD5423.
Rev. 0 | Page 10 of 19
Evaluation Board User Guide
AD5423 Digital Diagnostic Results Register
AD5423 Analog Diagnostic Results Register