STM32L-DISCOVERY STMicroelectronics, STM32L-DISCOVERY Datasheet - Page 153

• Manufacturer Part Number: STM32L-DISCOVERY
• Description: BOARD, EVAL, STM32L-DISCOVERY
• Manufacturer: STMicroelectronics
• Series: STM32r
• Type: MCUr

Specifications of STM32L-DISCOVERY

• Kit Contents: Board, Debugger, Programmer And Compiler
• Features: 128KB Flash Plus Multiple Timers, Analogue Peripherals
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: STM32
• Silicon Family Name: STM32F1xx
• Rohs Compliant: Yes
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STM32L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STM32F205xx, STM32F207xx
A.5
Complete audio player solutions
Two solutions are offered, illustrated in
Figure 91
This solution implements an audio crystal to provide audio class I
clock (0.5% error maximum, see the Serial peripheral interface section in the reference
manual for details).
Figure 91. Complete audio player solution 1
Figure 92
synchronization of input/output audio streaming using a hardware Codec.
Figure 92. Complete audio player solution 2
1. SOF = start of frame.
or 14.7456 MHz
Mass-storage
Mass-storage
SDCard
or 14.7456 MHz
SDCard
MMC/
MMC/
device
25 MHz
device
XTAL
USB
25 MHz
USB
XTAL
shows storage media to audio DAC/amplifier streaming using a software Codec.
shows storage media to audio Codec/amplifier streaming with SOF
SOF
SOF synchronization of input/output
PHY
OTG
SPI
+
mode) +
audio streaming
(host
OTG
PHY
SPI
Doc ID 15818 Rev 6
Cortex-M3 core
up to 120 MHz
Program memory
Cortex-M3 core
up to 120 MHz
application
System
User
Program memory
File
Figure 91
application
CODEC
System
Audio
User
File
and
FSMC
GPIO
SPI/
I2S
Figure
GPIO
SPI
I2S
92.
Application block diagrams
Audio PLL
+DAC
2
S accuracy on the master
buttons
Control
screen
touch
LCD
Audio
ampli
DAC +
Audio
ampli
screen
buttons
Control
touch
LCD
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