Analog Devices EVAL-AD5753SDZ, Руководство пользователя

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EVAL-AD5753SDZ User Guide UG-1492
Rev. 0 | Page 9 of 22
Table 3. AD5753 Block Diagram Label Functions (See Figure 8)
Label Function
A Apply Changes . Applies any changes made to the block diagram or to register values in the memory map to the device.
B Read All . Click to read back all of the registers of the device.
C Reset Chip . Click to reset the AD5753 . Reset Chip has the same functionality as the software reset of the AD5753 .
D Diff . Click to show the registers that are different from the data stored on the device. This function shows changes from the last
time the registers were read.
E
Software Defaults . Click to load the software defaults of the device. These values are not written to the hardware. Click Apply
Changes (Label A) to write the software default values to the hardware.
F
AD0 and AD1 . These check boxes set the address of the device and must correspond to the JP12 link and the JP14 link on the
hardware. When either box is checked, this represents a high state. When either box is unchecked, this represents a low state.
G /RESET . Check the EVAL-SDP-CS1Z ( SDP-S ) to set the RESET pin high. Otherwise, the EVAL-SDP-CS1Z ( SDP-S ) pulls RESET low.
H /LDAC . Check the EVAL-SDP-CS1Z ( SDP-S ) to set the LDAC pin high. Otherwise, the EVAL-SDP-CS1Z ( SDP-S ) pulls LDAC low.
I /FAULT . Indicator LED lights up red if the FAULT pin is low. The ACE plugin monitors the FAULT pin.
K VI_OUT . Displays the calculated output at VI_OUT and shows if the output is in voltage, milliamps, or is high impedance (high-Z).
Lx Graphical user interface (GUI) access on several registers. Pop-up windows, dropdown menus, and hexadecimal textboxes are
available in the GUI to configure several registers of the
AD5753 . To write the changes to the device, click the Apply Changes
button (Label A). The functions within the GUI that control various registers (Label L1 through Label L15) are described in Table 4.
M
Calibration Memory Refresh button. Initiates a write to the key register to perform a calibration memory refresh.
N SW LDAC button. Initiates a write to the key register to perform a software LDAC command.
O NOP Command button. Initiates a write to Address 0x00 for a no operation (NOP) command.
P
Configure ADC button. Writes the data selected in the ADC Config menu (Label L15) to the ADC configuration register.
Q Two Stage Readback menu. Initiate two-stage readback through the two-stage readback select register. Click the Readback
button to initiate a write to the two-stage readback select register and issue a no operation command.
R DIGITAL DIAGNOSTIC RESULTS menu. Click the Update and Readback digital diagnostic result button to trigger a write of 1 to
clear operation and a readback from the digital diagnostic results register.
S
ANALOG DIAGNOSTIC RESULTS menu. Click the Update and Readback analog diagnostic result button to trigger a write of 1 to
clear operation and a readback from the analog diagnostic results register.
T HART_EN box. Check this box to allow the HART_EN bit = 1 in the General-Purpose Configuration 1 register.
U Proceed to Memory Map button. Click this button to open the AD5753 memory map (see Figure 9).
V Example Sequences button. Click this button to open the example sequences window (see Figure 15).
Table 4. Register Controls Accessible via the GUI (See Label Lx in Table 3 and in Figure 8)
Label Function
L1 Diagnostic Configuration button. Click this button to open the associated pop-up menu.
L2 GP Config menu. Click this menu to open the associated pop-up menu.
L3 Key register menu. Click this menu to open the associated dropdown menu.
L4 Fault Pin Config button. Click this button to open the associated pop-up menu.
L5 WDT Config button. Click this button to open the associated pop-up menu.
L6 Frequency Monitor menu. This menu displays the value in the frequency monitor when read.
L7 Clear Code menu. Use the textbox in this menu to insert a clear code value in hexadecimal format.
L8 User Gain menu. Use the textbox in this menu to insert a user gain value in hexadecimal format.
L9 User Offset menu. Use the textbox in this menu to insert a user offset value in hexadecimal format.
L10 DAC Input Reg menu. Use the textbox in this menu to insert the DAC value in hexadecimal format.
L11 16 Bit DAC symbol. Click this button to open the associated pop-up menu.
L12 DAC Output Reg menu. This menu displays the hexadecimal value currently set in the DAC output register.
L13
DC-DC Converter . Click this button to open the dc-to-dc configuration pop-up menu.
L14 Status Register menu. This menu displays the contents of the status register.
L15
ADC Config menu. This menu contains a combination of dropdown menus and a textbox to enter the sequence data.
L16 GPIO Config/Data . Click this button to bring up a pop-up menu that allows control of the GPIOs.