Does anyone know a module for I2S DAC ?
How can I interface this board to STM32 ?
Raspberry Pi pHAT Sound Card I2S interface PCM5102 DAC Module 24 bit Audio Board With Stereo Jack Beyond ES9023 PCM1794-…
From datasheet for I2S, what's the relation with the board ?
The SPI could function as an audio I2S interface when the I2S capability is enabled (bysetting the I2SMOD bit in the SPI_I2SCFGR register). This interface uses almost the samepins, flags and interrupts as the SPI.The I2S shares three common pins with the SPI:● SD: Serial Data (mapped on the MOSI pin) to transmit or receive the two timemultiplexeddata channels (in simplex mode only).● WS: Word Select (mapped on the NSS pin) is the data control signal output in mastermode and input in slave mode.● CK: Serial Clock (mapped on the SCK pin) is the serial clock output in master modeand serial clock input in slave mode.An additional pin could be used when a master clock output is needed for some externalaudio devices:● MCK: Master Clock (mapped separately) is used, when the I2S is configured in mastermode (and when the MCKOE bit in the SPI_I2SPR register is set), to output thisadditional clock generated at a preconfigured frequency rate equal to 256 × FS, whereFS is the audio sampling frequency.
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