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Are there any solutions for generating a sync signal on a custom embedded Linux system with an SoC as I2S master and ALSA?

Category: Software
Product Number: AD2433
Software Version: A2B Software for Linux 19.4.4

I am working on a project in which the host processor of the A2B network is a custom platform with embedded Linux. This platform features an SoC, which is to act as an I2S master, and the AD2433 as an A2B master node. I am using a customized version of the a2b-adsp-sc589_mini-linux demo app for Linux. My problem is that I cannot find a way to reimplement the pal_audioOpen functions so that the PCM interface of the SoC is configured to send a continuous SYNC signal. This means that I cannot perform a successful discovery. Are there any established solutions for this type of problem?