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AN4207 датащи(PDF) 25 Page - STMicroelectronics

номер детали AN4207
подробное описание детали  The STM32F37x series of microcontrollers combines
PDF  28 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4207 датащи(HTML) 25 Page - STMicroelectronics

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AN4207
Application examples
Doc ID 023945 Rev 1
25/28
The flowchart of this application is given in the figure below.
Figure 15.
Flowchart of ECG acquisition application
DMA half/
complete
transfer IRQ
Set buffer
pointer at 2nd
half
Set buffer
pointer at 1st
half
Clear DMA half/
complete
transfer interrupt
Write SDADC
sample in
selected buffer
ECG acquisition
Init SDADC, TIM3
used as trigger, DMA
Init SDADC
Init TIM13 used as
trigger
Filter the SDADC
samples using a
BandPass FIR filter
Display filtered
samples on LCD
Reset buffer pointer
Exit application
Disable acquisition:
Disable SDADC,
Disable TIM3
Stop acquisition?
Is Half Transfer
flag set ?
Buffer pointer
reset?
MSv31142V1



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