Tool/software:
Hi everyone.
I am currently working with the TAS2557EVM and specifically want to switch the boost operation from class-H to class-G (or vice versa).
At the moment, I am writing to the BOOST_CTRL_1 register as specified in the datasheet.
This is the code I am currently using.
i i2cstd w 98 00 00 #Page-0 w 98 7f 00 #Book-0 r 98 09 01 # read the boost register w 98 09 01 # class G
I have my doubts on whether the boost mode actually switches, as I can't see a difference when comparing the waveforms of Vboost on an oscilloscope.
For context: I am using the 5V supply to power the board. When in operation, the Vboost reaches up to 8.5V.
I understand that the actual captured waveform would not look like depicted in the datasheet, but surely, I would see some difference (e.g. longer slope when ramping).
Also, I would be interested in knowing if there is any way to change the boost mode using the PPC3 other than the direct i2c control.
In my research I found this thread but that did not really answer the question.
I confirmed the i2c in general is working by muting/unmuting the amplifier that way.
Please advise me for the trouble shooting.
