I have a question about SPI communication of ADAU1446.
We control ADAU1446 with Zynq via SPI.
In high temperature (more than 85C ambient), Zynq can't control the DSP via SPI.
But, when we used Sigma Studio, the DSP was controlled by SPI of Sigma Studio.
We checked each circuit (Our DSP design and Analog Device's Eval. Board), but there is no difference
So, we suspecting current capacity of Zynq, but still we can't understand that lack of SPI current cuases this problem.
Why the SPI operates in normal at room temperature, but not at high temp.
This kind of problem can be cuased by lack of current?