I would need to have different sample rates for SAI1_RX and SAI1_TX, so I am trying to use SAI2 clock for one of them, as proposed in I2Sx_xCR2/MSEL.
Unfortunately, this leads to a silent clock and no transfer.
The documentation states (Ref Manual p4327) "Depending on the device, some Master Clock options might not be available. See the chip-specific information for the availability and chip-specific meaning of each option."
So my question is twofold:
- Is it legal to attempt to use SAI2 root clock for one of SAI1 streams ?
- Where may I find the "chip-specific information" for i.MX7D?