ST STM32F103 series

AN2739 Implementation example
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Figure 6. Driver’s functional flowchart 2
I2S_CODEC_Data
Transfer
Send dummy
data on I2S2
Audio file
End
Codec
configuration
phase
Read data from
memory
No
Ye s
Send data on I2S2
Increment
data index
Pause / Stop
Status ==
Playing
Ye s
End of stream
AudioReplayCount--
AudioReplay ==0
No
AudioReplayCount
> 0
No
Ye s
Play
End
Stop
AudioReplayCount =
AudioReplay
Ye s
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