How to identify GPIO to corresponding SPORTs

Hi,

If you are using 21489 Ez-kit, Please find the following Input and output combinations

 J4 bottom row RCA connectors - ADC IN 1 Left/Right Channels
              - J4 middle row RCA connectors - DAC OUT 1 Left/Right Channel
              - J5 middle row RCA connectors - DAC OUT 2 Left/Right Channels

 J5 bottom row RCA connectors - ADC IN 2 Left/Right Channels
                  - J4 top row RCA connectors - DAC OUT 3 Left/Right Channels
                  - J5 top row RCA connectors - DAC OUT 4 Left/Right Channels
                  - Headphone jack (H)
Also, we suggest  you to Refer the "Readme" of the I2S C Sample based talkthrough for switch config and overview on the code,which is available in Visual DSP folder. Please navigate by the below path
C:\Program Files (x86)\Analog Devices\VisualDSP 5.1.2\214xx\Examples\ADSP-21489 EZ-Board\21489 AD1939 I2S C Sampled-Based Talkthru\readme.txt

Also refer initSRU.c file, which provide detailed information about Codec ADC/DAC Routing. Like how the clock, Fs, data lines from AD1939 connected to SPORT using DAI pins.    

Regards,
Divya.P

Thanks for the reply.

I am trying to connect my I2S female/female input cables to the board, I am assuming I can use the Expansion Interface II Comnector.

But how can I identify the different pins on the board.

Thanks.

Hi,

Are you asking about DAI pins connected to SPORT, from the SRU diagram in "initSRU.c" were you get an image representation of  DAI pins and SPORT connections.
SPORT0 and SPORT1 Clock input <----  DAI_PB07 (PIN 18) in P2 connector.
SPORT0 and SPORT1 FS  input <----- DAI_PB08 (Pin 20) in P2 connector.
SPORT0_DA_O ---> DAI_PB12 (Pin 47) in P2 connector.
SPORT1_DA_I <---- DAI_PB05 (Pin 42) in P2 connector.

Please refer the 21489 Ezkit schematics to know about pin connections.
www.analog.com/.../ADSP-21489_ezboard_man_rev.1.1.pdf

Hope this helps you, please let us know for further assistance with detailed requirements of issue.

Regards,
Divya.P

Hi,

Thank you for your help. Unfortunately, the demo does not seem to work. I've linked the different Inputs to their positions, but the only thing I am getting is noise as an output.

Are there some parameters that I need to change in the demo code?

Also, is it possible to access the content of the different SPORTs in CCES? For example, the pins used in the I2S talkthrough.

Thanks.

Hi,

Thank you for your help. Unfortunately, the demo does not seem to work. I've linked the different Inputs to their positions, but the only thing I am getting is noise as an output.

Are there some parameters that I need to change in the demo code?

Also, is it possible to access the content of the different SPORTs in CCES? For example, the pins used in the I2S talkthrough.

Thanks.