I bought a Tas5756m development board, derived the parameters of Hybird 3 1.1 from the development board, and burned it into the actual debugging prototype. It can control the volume addition and subtraction, write, read, change the EQ data, and read correctly. But the effect of EQ has never been effective. The frequency response curve scanned from AP is a straight line without any change at all.
I have done the following experiments:
1. Changing the parameter values written to the EQ register is different, and then going to read, it is found that the read-out and the changed parameters are the same. Explain that reading and writing are normal.
2. Conducting at least 20 EQs has no effect. AP scan is also a default line.
3. except EQ, register of page 0 is effect. but EQ page(>= page 44) register is not work.
Excuse me, how can this situation be solved?
hardware: tas5756m * 2 ==》2.2 system.
software: MCU actions ATS2825C
