I am using the SigmaDSP in a real time situation where several similar elements need to change at the same time.
For example an EQ curve on several channels.
I am normally controlling the ADAU1442 from I2C but to change say 4 curves on 4 channels takes many commands and obviously adds a latency issue which I am trying to avoid.
So the question is:
1. is it possible to send a command to several components to change at the same (or at least near same) time
2. is SPI faster than I2C to update parameters