MAX19527 Evaluation Kit

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Detailed Description of Software

Software Startup

Before starting the MAX19527 EV kit software, verify that

shunts are configured in their default states, as shown in

Table 1 and a valid clock signal is applied at the EV kit

CLK SMA connector. Upon starting the program, the EV

kit software searches for the DS89C40 microcontroller

interface circuit. The software then reads the ADC’s

registers (0x00 to 0x10), updates the software GUI

in the Input/Output/Clock and Power_ Management

tab sheets, and places the register contents (in hex

format) next to their respective Reg00-Reg10 register

designators.

User-Interface Panel

The program’s main window contains two tabs, Input/

Output/Clock (Figure 1) and Power_ Management

(Figure 2), which provide controls for the ADC’s soft-

ware-configurable features. The Input/Output/Clock tab

sheet provides group box controls for Output_ Format,_

LVDS_ Output_ Adjustments,_ Input_ Common_ Mode_

Voltage, and System_Timing. The Power_Management

tab sheet provides controls for power management.

Changes to the controls result in a write operation that

updates the appropriate registers of the ADC. The reg-

isters are automatically read after each write operation

to verify data sent. Additionally, a ReadRegs button is

available to read all the ADC registers and to update

the main window Reg00–Reg10 register designators.

For reference, a list of registers and their content (in hex

format) is provided in a column on the right side of the

program’s main window.

The Reset button resets the ADC registers to their

power-on-default state.

The bottom status bar of the main window provides the

communication status of the EV kit microcontroller inter-

face circuitry. The Address and Data labels display the

last register address written to and its corresponding

data, respectively.

Figure 1. MAX19527 EV Kit Software (Input/Output/Clock Tab)