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STM32F215RG 데이터시트(PDF) 157 Page - STMicroelectronics

부품명 STM32F215RG
상세설명  ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM
PDF  173 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F215RG 데이터시트(HTML) 157 Page - STMicroelectronics

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STM32F21xxx
Application block diagrams
Doc ID 17050 Rev 8
157/173
A.5
Complete audio player solutions
Two solutions are offered, illustrated in Figure 87 and Figure 88.
Figure 87 shows storage media to audio DAC/amplifier streaming using a software Codec.
This solution implements an audio crystal to provide audio class I2S accuracy on the master
clock (0.5% error maximum, see the Serial peripheral interface section in the reference
manual for details).
Figure 87.
Complete audio player solution 1
Figure 88 shows storage media to audio Codec/amplifier streaming with SOF
synchronization of input/output audio streaming using a hardware Codec.
Figure 88.
Complete audio player solution 2
1.
SOF = start of frame.
Cortex-M3 core
up to 120 MHz
OTG
(host
mode) +
PHY
SPI/
FSMC
SPI
GPIO
I2S
XTAL
25 MHz
or 14.7456 MHz
USB
Mass-storage
device
MMC/
SDCard
LCD
touch
screen
Control
buttons
DAC +
Audio
ampli
File
System
Program memory
Audio
CODEC
User
application
ai16039c
Cortex-M3 core
up to 120 MHz
OTG
+
PHY
SPI/
FSMC
SPI/
FSMC
GPIO
I2S
USB
Mass-storage
device
MMC/
SDCard
LCD
touch
screen
Control
buttons
Audio
ampli
File
System
Program memory
Audio PLL
+DAC
User
application
ai16040c
SOF
SOF synchronization of input/output
audio streaming
XTAL
25 MHz
or 14.7456 MHz



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