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PDM mic emulator
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Hi everyone, I want to create a PDM mic emulator on STM32. I set up I2S on F411 board to read PDM. I2S interface generates clock signal on CLK pin and reads data in a buffer on a DATA pin. I want to emulate PDM data stream. To do this I will generate data bits in code and output signal to on of the board pins (lets call it DATA_EMU pin) and connect it by wire to DATA pin of I2S. I don't know how to sync frequencies of CLK and DATA_EMU? Is there a way to do such emulation?
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