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Connecting 3 converters AD7779 to ADSP21478

Question asked by gkania on Jul 31, 2017
Latest reply on Aug 11, 2017 by Jithul_Janardhanan

I want connect 3 converters AD7779 to dsp AD21478. I connected SPI of converters interface to DPI/SPI. It works good. For receiving data I would like to use interface DPI/SIP. I connected signals: DCLK, /DRDY, DOUT0, DOUT1 to DAI ports. I configured SRU, I configured DMA in Ping-Pong mode, I configured DMA IRQ - it all work good.
But I can't see data in buffer memory. I think, that problem is in configuration in register IDP_CTL0. My converters do not give dates in I2S mode, and same mechanics in SIP interface do something strange with them.
Is there any posibilities to configure this interface in such way, they do nothing with dates ? Simply store them in memory.

 

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Grzegorz

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