Ive seen the i2s examples, mp3 radio etc, and they all seem to perform an I2S_CLK_ENABLE which evnetually resolves to calling a function rom_i2c_writeReg_mask which is in the SDK/bootrom, but we do not have sources for that, so my question is, has anyone else looked into this?
How do we enable i2s in a free and open source way?