American Audio COMMANDER PLUS - REV 1-2 Betriebsanweisung PDF herunterladen (Seite 13)

UG-196-02-C

196-02-C - DA7322 Audio Codec with DSP

User guide UG-196-02-C

Revision 0.6

15-September-2014

CFR0011-121-00 Rev 1

13 of 21

Status and controls 6.3

● Polling Enabled By default the current page of device

disabled, these read-backs 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. If

the LED is red the device is inactive

● Interface Selects between SAM3U I2C/SPI control and

offline mode. Switching to offline, then back to SAM3U

I2C/SPI reinitialises the USB interface. I2C mode is the default

communication setup for the device

● USB OK? Solid green illumination indicates that the USB is

OK and communicating.

● Stop Program This terminates the program. If there are

unsaved changes, a dialog box is displayed.

● Read Chip ID This reads the Chip ID from the device

and displays the content in the text box above the button. The

text box indicates the device version when the device is

active. When inactive, version status will not be correct.

● Load Loads previously saved text files, sends loaded

Selecting ‘Load’ opens a list of other options related to loading

files. Select ‘load codec file ..’ to bring up a dialog box which

allows you to select, view, copy or re-name files. Once a file

has been selected, ‘Load codec file..’ opens the file and

executes commands listed in the file to manipulate the

registers of the device allowing the device to be quickly

configured for different setups with a script file. Load codec file

should always be used when using audio based devices, Load

is used for non-audio based device configuration.

● Save Saves the current panel state to a text file.

Selecting ‘Save Codec file..’ saves the codec registers in a

text file with sequential register address number, value of

option saves the current register values to a text file in a

slightly different format, the register name and value of

further details. Save Codec should be used when using audio

based devices.

Note 3 The difference between ‘Save’ and ‘Register Dump’ is that the

‘Save’ option 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. Also

some codec registers do not have read-back capability.

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