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ST STM32F103 series Application Note

ST STM32F103 series
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Contents AN2739
2/26
Contents
1I
2
S general description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 I
2
S protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 STM32F103xx I
2
S feature presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Implementation example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 General overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.1 Audio codec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.2 STM32F103xx and board configuration . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.1 I2S_CODEC driver firmware description . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.2 Demo firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.3.3 Timing considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.4 General, allowed parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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ST STM32F103 series Specifications

General IconGeneral
BrandST
ModelSTM32F103 series
CategoryMicrocontrollers
LanguageEnglish

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