Reference : SGP_AVS_SW_ATLAS-05-05 Classification : COMPANY RESTRICTED
Version : 0.17 Project : ATLAS_DSW
Status : Proposed Chapter : User Manual
Date : 2006-09-12
Section : Diagnostic Software (Leco+)
© Philips Electronics N.V. 2006 Philips Semiconductors Page 56 of 124
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Nucleus Name
DS_SYS_AudioLoop
Nucleus Number 1216
Description In this nucleus the Codec generates an audio sine signal with a specific
signature and sends it to the output of the digital board. The Codec encodes
the audio signal to MPEG I layer II and after this the signature of the signal will
be checked.
Note: Before executing this nucleus the user must route the audio signal on
the VIP using DS_VIP_Routing.
Technical - The user needs to route the signal to the audio inputs so the test can
encode the audio to MPEG I layer II
- An audio signal is generated, resulting in a sine of 6kHz on the left and
12kHz on the right channel.
- Then the signal is decoded in memory.
- When both signals are detected correctly in the MPEG, the test succeeded.
Execution Time Approximately 9 seconds
User Input InputType:
- I2S (default, when no user input is given)
- SPDIF: This input needs a second parameter:
- OPT (optical, default, when no user input is given)
- COAX
Error Number Description
121600 Testing the components on the audio signal path succeeded
121601 The audio encoder did not initialise.
121602 No audio could be generated.
121603 The audio encoder did not encode audio.
121604 The audio could not be decoded.
121605 Frequency on left channel out of range.
121606 Frequency on right channel out of range.
121607 The frequencies on both channels are out of range.
121608 Frequency on left channel out of range. Right channel silent.
121609 Right channel is silent.
121610 Frequency on right channel out of range. Left channel silent.
121611 Left channel is silent.
121612 Both channels are silent.
Example
DS:> 1216
121600:
Test OK @
DS:> 1216 spdif coax
121600:
Test OK @
DS:> 1216 spdif opt
121600:
Test OK @
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