Evaluation Software Functions; Start Ade7903 - Analog Devices EVAL-ADE7903EBZ User Manual

EVAL-ADE7903EBZ User Guide

EVALUATION SOFTWARE FUNCTIONS

The ADE7903 evaluation software allows access to all the
registers and features of the ADE7903. The main menu options
available are

Start the ADE7903

Waveform Sampling

Temperature Measurement

Read and Write Registers

Reset the ADE7903

Exit button (closes the software)
These options provide access to all internal registers and allow
evaluation of the ADC performance. To access these functions,
click the desired option in the main menu (see Figure 11).
Clicking an option in the main menu displays a window where
the specific function can be accessed. Each window includes a
Main Menu button used to return to the main window.
Note that only one option from the menu can be open at a time;
click Main Menu to return to the main window before choosing
another option from the menu.

START ADE7903

Figure 14 shows the Start ADE7903 window. The
clocked from a 4.096 MHz crystal. The software automatically
starts the ADE7903 ADC with the following default settings:

The bandwidth of the digital low-pass filter of the ADC is
set at 3.3 kHz.

The ADC output frequency is set at 8 kHz.

The CLKOUT/ DREADY pin is set to generate a DREADY
signal at the output frequency to signal when the data is
ready from the ADC.

The secondary voltage channel is set to read from the V2P
input rather than from the temperature sensor.
If different settings are desired, select them from the boxes in
the right half of the window. Click Configure to update the
ADE7903.
The CONFIG register box shows the current value of the
CONFIG register, and can be used to verify the changes made
to the ADE7903.
The Lock Registers button can be used to protect the
configuration registers in the ADE7903. This button writes
directly to the lock register (0xA). When the registers are
ADE7903 is
protected, the boxes on the right are greyed and the Lock
Registers light turns on. Note that when the registers are
protected, no register can be further written until the protection
is disabled. It is therefore recommended to evaluate the
ADE7903
Click Read to read the current configuration. Click Configure
to write the new settings. Click Reset to reset the ADE7903.
Click Main Menu to close this window and open the main
window.
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Figure 14. Start ADE7903 Window
ADC while keeping the registers protection disabled.
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