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ADZS-SC573-EZLITE SigmaStudio for SHARC digital input/output

Category: Software

I am trying to get the digital (S/PDIF) inputs and outputs of the SC573 evaluation board working with SigmaStudio for SHARC.

I am using SigmaStudio for SHARC 4.6 and have loaded the default demo application DXEs onto the board (the one under C:\Analog Devices\SoftwareModules\SigmaStudioForSHARC-SH-Rel4.6.0\Target\Examples\Demo\ADSP-SC57x\ADSP-SC573) and am using the demo schematic Volume_Mute_Block_SC5xx.dspproj (under C:\Analog Devices\SoftwareModules\SigmaStudioForSHARC-SH-Rel4.6.0\Host\Examples\Sample Schematics\ADSP-SC5xx). I have the board set up (cables, jumpers, switches etc) as per the quick start guide (C:\Analog Devices\SoftwareModules\SigmaStudioForSHARC-SH-Rel4.6.0\Docs) with the exception that the boot switch (SW1) is set to 1 as I have programmed the flash as per the instructions in section 6.1.

I can get the board up and running fine and the analogue inputs and outputs work, and the volume/mute controls work on them, but the S/PDIF digital inputs/outputs don't seem to work at all, and the schematic seems to suggest that they should.

I also have a 21489 eval board running SigmaStudio for SHARC 2.2 and the digital inputs/outputs work fine with its demo code, so the other hardware I'm using for digital inputs/output is definitely working.

Does anyone know how to get the digital inputs/outputs working on the SC573 board? Do I need to change settings in the demo application?

Also, as an aside, does anyone know which way around the red/white RCA connectors for the S/PDIF input/output are? I have tried both ways round just in case, but they are not labelled and given that the analogue inputs/outputs are the opposite way rounds (for the analogue inputs the first input is the top RCA connector, whereas for the analogue outputs it's the bottom) I don't want to make any assumptions.

  • Hi ,

    SigmaStudio for SHARC 4.6.0 demo application have support for only SPDIF input. I/O channel 6 and 7 is assigned for SPDIF Rx data. Please listen to the DAC channel 6&7 for SPDIF audio output  By default the demo application supports SPDIF input over Coax interface on the EVAL board. You may need to modify the "adi_ss_softconfig_SC573.c" file for Optical input for SPDIF Data.

    SigmaStudio for SHARC 4.7.0 has support for both SPDIF input and Output.