I am trying to develop I2S master using the NUCLEO-L433RC-P, but struggling to achieve a master clock speed for 48kHz playback.
The I2S audio is working (using a MAX98357A I2S amplifier) and the master clock speed needs to be 12.88MHz (i.e. 48kHz x 256). But with my current clock configuration it is 18.285MHz, so the playback speed is too fast.
I tried entering 12.888MHz as the SAI clock speed to resolve the configuration and it came up with the configuration below, but with this configuration my code does not run....
Is it possible to achieve 48kHz playback using the internal RC oscillators, or do I have to use the HSE ?
