Analog Devices AD9161 User Manual page 21

AD9161/AD9162/AD9163/AD9164
ADF4355 Output Frequency or DAC Output Frequency Is
Not Correct
Check the board crystal. The board crystal (Y61 in Figure 3)
can be 120 MHz (for the AD9161, AD9162, and
devices) or 122.88 MHz (for the
correct reference clock in the AD916x Startup Wizard
according to the correct crystal frequency.
External Clock Switch Does Not Work
On a small number of released evaluation boards, the
software selection for the external clock does not actuate the RF
switch to connect the external clock to the DAC clock input.
The root cause of this issue is a bug in the firmware loaded on the
PIC microcontroller that is on the evaluation board. The
firmware inadvertently omits control of the general-purpose
input/output (GPIO) line that controls the RF switch.
Consequently, though the ACE
switch does not actuate due to the firmware not controlling the
GPIO line. If this issue is encountered, the evaluation board
must be reprogrammed with new firmware. Contact a local
Analog Devices sales person or distributor to arrange for this
reprogramming to be done.
User Guide
Figure 24. Register Write Error Indicating
AD9164
AD9163 device). Set the
ACE
software operates correctly, the
ACE Does Not Recognize the Evaluation Board
ADS7-V2EBZ
The ADS7-V2EBZ
shipping. However, it is possible that a further update to the
firmware was made after that time. If a firmware update is
needed, a dialog box stating that is displayed and the user
cannot use the DPGDownloader until a firmware update is
completed.
To update the ADS7-V2EBZ
DPGDownloader application and click the Advanced/Debug
button, as shown in Figure 25. Click the Update button. The
updater runs and installs the firmware update. It may be
necessary to power cycle the
and reopen the DPGDownloader to recognize the update.
Rev. 0 | Page 21 of 22
Firmware Update Needed
firmware was updated at the factory prior to
firmware, open the
ADS7-V2EBZ
UG-1526
board and to close