EVAL-ADRF6820 Datasheet, PDF (5/20 Pages) Analog Devices – On-board USB for SPI control

EVAL-ADRF6820 User Guide
EVALUATION BOARD CONTROL SOFTWARE
The ADRF6820 evaluation board is configured with a USB friendly
interface to allow programmability of the ADRF6820 registers.
SOFTWARE INSTALLATION PROCEDURES
The following instructions describe how to install the ADRF6820
control software, as well as the Cypress generic USB driver, on a
computer running a Windows XP, Windows Vista, or Windows 7
(32- or 64-bit) operating system.
Warning
Install the necessary software before plugging the USB cable
into the computer.
Installing the Evaluation Software
1. From the extracted folder, ADI_RFG_Drivers, double-click
the ADI_RFG_Drivers.exe file. Running this file allows the
installation of the Cypress CyUSB.sys driver as a verified,
signed driver.
2. From the extracted .zip file, double-click the ADRF6820_
install.exe file. An icon should appear on your desktop
with the ADI logo, titled ADRF6820.
3. After the installer is finished, install the USB driver.
Installing the Driver
1. Connect the USB connector on the evaluation board to the
PC using the USB cable that was included in the box.
2. In either Windows XP or Windows Vista, right-click My
Computer and then select Properties.
3. Open the Device Manager.
a. In Windows Vista or Windows 7, select the Device
Manager option.
b. In Windows XP, select the Hardware tab and then
click Device Manager.
4. In Device Manager, select the last category, Universal
Serial Bus Controllers. You should see an entry that either
UG-652
has a yellow flag (indicating an unknown device) or an
entry labeled ADF4xxx USB Driver (if you have installed a
previous ADRF6x0x or ADI Limerick PLL software).
5. Right-click on the appropriate device and select update driver.
6. Browse to select the directory C:\Program Files\
ADRF6820_customer_software.
7. Click Next. Windows completes the driver installation.
USING THE ADRF6820 EVALUATION SOFTWARE
ADRF6820 Tab
The main window of the ADRF6820 evaluation software
includes a block diagram that shows how the registers affect the
major functional blocks of the ADRF6820 (see Figure 4).
Within this window, the green boxes indicate that user input is
required, and the yellow boxes indicate read only information.
To use the ADRF6820 evaluation software,
1. Before reading or writing to the registers, validate the USB
connection by reading the USB indicators located in the
lower left corner of the main window.
2. Click Update GUI to read the register values from the
device and update the user interface. (An automatic write
to the chip is initiated every time a register value is
changed from the user interface.)
3. Specify the PLL reference and the desired LO frequency by
typing the appropriate values into the designated boxes.
Press ENTER after each input, and the software (via the
PLL synthesizer blocks) calculates and sets the INT, FRAC,
and MOD values accordingly.
Engineering Tab
The Engineering tab (see Figure 5) allows specific reads and writes
to individual registers. Be sure to type values into the Address
(decimal) and Write Data (decimal) boxes in decimal format.
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