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STM32F103VDT6 开发手册 - ST Microelectronics(意法半导体)
制造商:
ST Microelectronics(意法半导体)
分类:
微控制器
封装:
LQFP-100
描述:
STMICROELECTRONICS STM32F103VDT6 微控制器, 32位, 电机控制, ARM 皮质-M3, 72 MHz, 384 KB, 64 KB, 100 引脚, LQFP
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STM32F103VDT6数据手册
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May 2008 Rev 1 1/26
AN2739
Application note
How to use the high-density STM32F103xx microcontroller
to play audio files with an external I²S audio codec
Introduction
This application note describes how to use the high-density STM32F103xx I
2
S feature to
play audio files using an external codec.
The I
2
S protocol is widely used to transfer audio data from a microcontroller/DSP to an
audio codec in order to play melodies (stored in a memory) or, to capture analog sound
(from a microphone).
The high-density STM32F103xx allows I
2
S audio communications using the SPI peripheral,
and implements specific functionalities for this communications mode.
The first, preliminary section of this application note may be skipped by advanced users.
Note: Throughout this document, and unless otherwise specified, the term of I
2
S will be used to
refer to the I
2
S feature of the SPI peripheral that is implemented in high-density
STM32F103xx microcontrollers.
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