Setting The Dac Output; Writing To The Adc Configuration Register; Updating Diagnostic Results - Analog Devices AD5758 User Manual

UG-1268

SETTING THE DAC OUTPUT

To configure the DAC output, use the pop-up menu for the DAC
configuration register (see Figure 11), available in the GUI. Click
the 16 Bit DAC symbol in the GUI to display the DAC config-
uration register. Select the appropriate settings, and then click
Apply Changes. It is recommended to disable the output until the
correct value in the DAC input register is written to the device.
To change the DAC voltage/current output level, write the
appropriate hexadecimal code to the DAC input register and
then click Apply Changes. Issue a software LDAC command
using the SW LDAC button, or pull the LDAC pin low to
update the DAC output register with the values in the DAC
input register. Ensure that the fault protect switch, FPS_EN, is
enabled before enabling the output. Enable the DAC output,
OUT_EN, and then click Apply Changes. The programmed
voltage/current is then reflected at the VI
Figure 11. AD5758 DAC Config Register Pop-Up Menu
pin.
OUT
Figure 13. AD5758 Digital Diagnostic Register
Figure 14. AD5758 Analog Diagnostic Register
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EVAL-AD5758

WRITING TO THE ADC CONFIGURATION REGISTER

The procedure to set up and configure the ADC sequencer is
discussed in detail in the AD5758
writing to the ADC configuration register through the Apply
Changes function is disabled.
Drop-down menus and a hexadecimal texbox are available within
the GUI (see Figure 12) to access the ADC configuration register.
Clicking the Configure ADC button initiates a write to the
ADC configuration register.
Figure 12. AD5758

UPDATING DIAGNOSTIC RESULTS

The AD5758 has a digital diagnostic results register and an analog
diagnostic results register, both of which contain error flags for the
on-chip digital and analog diagnostic features. Writing 1 to the
respective error flags updates the error flag status.
To update the digital and analog diagnostic result registers, an
Update and Readback button is available on the
Clicking this button initiates the writing of a 1 to the selected
error flag and then reads back the updated diagnostic result.
Figure 13 shows the digital diagnostic results register. Figure 14
shows the analog diagnostic results register.
User Guide
data sheet. For this reason,
ADC Configuration Register
ACE GUI.