Dac Gain Button; Dac External Ref Value; Dac Clear And Latch Settings; Dac Clear Triggers - Texas Instruments AMC7812EVM-PDK User Manual

AMC7812EVM Software Overview
Either one of these windows can be programmed with the desired DAC output voltage or hexadecimal
value. The default range upon startup is the 0 to 5 V (0 V to 2x Vref) range. The range can be changed to
0 to 12.5 V (5x Vref) by clicking the 2x Vref button,
the program DAC value is also updated.
The DAC page also has an option to use an External or Internal reference. Select this option by using a
dropdown menu, then choosing External or Internal option. When the Internal option is chosen, the DAC
External Ref Value box is grayed out. But when an External reference option is selected, the DAC
External Ref Value box becomes active and the value of the external reference voltage can be entered in
the box as shown in
To the right of the Program DAC field are additional options that allow the user to configure each DAC for
different events, as shown in
allows the user to put the corresponding DAC in a clear state when the DAC-CLR-0 or DAC-CLR-1 pin
goes low. The SW CLR checkbox forces the DAC into a clear state through software. Auto CLR forces the
DAC to clear based on the DAC Clear Triggers located in the bottom of the page,
SLDA checkbox, which can be enabled for synchronous load; the registers are updated by pressing the
Update DAC Latch button.
5.2.5 AMC7812EVM ALARMS Page
The ALARMS page allows the user to access or observe the AM7812 registers and register bits related to
common programmable settings and alarms of the AMC7812.
AMC7812EVM.
18
AMC7812EVM-PDK User's Guide
Figure 20. DAC Gain Button
Figure 21.
Figure 21. DAC External Ref Value
Figure 22. Starting from left to right, the CLR EN0/ CLR EN1 checkbox
Figure 22. DAC Clear and Latch Settings
Figure 23. DAC Clear Triggers
Copyright © 2010–2014, Texas Instruments Incorporated
Figure 20. The range button now displays 5x Vref and
Figure 24 displays the ALARMS page of the
SBAU177D – September 2010 – Revised August 2014
www.ti.com
Figure 23. Last is the
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