User Guide DA7212_Rev1v2 CONFIDENTIAL
Page 14 of 34
User Guide
DA7212 User Guide – Rev1.2
Status and Controls
Polling Enabled
BY default the current page contents is updated via
polling the I2C interface. If disabled, these readbacks
are suppressed. This is used to force the
communication over the bus to be silent.
If this is set to automatic, the program will only poll the
device while the application is the topmost window. If
obscured by another program or window, polling will
be disabled.
LED
If the device is active this LED is green, or red if
inactive.
This indicates the device version when the device
is active. When inactive, version status will not be
correct.
Stop Program
This terminates the program. If there are unsaved
changes, a dialog box is displayed.
Load
Loads previously saved text files, send all
Registers and read back all registers.
“Load” opens a dialog box to select, view, copy or
re-name a file.
Load Codec file opens a dialog box to allow selection of a
codec setup file in the “\Codec Setups” directory.
Save
Saves current panel state to a text file. Selecting
“Save Codec file..” saves the codec registers in a slightly
different format.
Selecting “Register Dump” option saves
current register values to the text file. See Appendix A.
Note: Difference between
“Save” and “Register Dump” is that the “Save”
dumps the contents of all panel controls to the file (a save state operation);
whereas,
“Register Dump” reads the device contents (including status
registers) into the file. Note that some codec registers do not have readback
capability.
Interface
Selects between USB I2C control
and offline mode. Switching to offline,
then back to USB reinitialises the
USB interface.
