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AN3422 Datenblatt(PDF) 13 Page - STMicroelectronics

Teilenummer AN3422
Bauteilbeschribung  Migration of microcontroller applications from STM32F1 to STM32L1 series
PDF  52 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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AN3422
Peripheral migration
Doc ID 018976 Rev 2
13/52
Table 3.
STM32 peripheral compatibility analysis F1 versus L1 series
Peripheral
F1 series
L1 series
Compatibility
Comments
Pinout
SW compatibility
SPI
Yes
Yes
No I2S in L1 Medium-density
series
L1 vs. F1: limitation fix
Identical
Full compatibility
WWDG
Yes
Yes
Same features
NA
Full compatibility
IWDG
Yes
Yes
Same features
NA
Full compatibility
DBGMCU
Yes
Yes
Same features
NA
Full compatibility
CRC
Yes
Yes
Same features
NA
Full compatibility
EXTI
Yes
Yes
Same features
Identical
Full compatibility
USB FS
Device
Yes
Yes
Same features
Identical
Full compatibility
DMA
Yes
Yes
Same features
NA
Full compatibility
TIM
Yes
Yes
Same features
Identical
Full compatibility
SDIO
Yes
Yes
Same features (No SDIO in
L1 Medium-density and
Medium-density+ series)
Identical
Full compatibility
FSMC
Yes
Yes
Same features but only
SRAM/NOR memories are
supported (No FSMC in L1
Medium-density and Medium-
density+ series)
Identical
Full compatibility
PWR
Yes
Yes+
Enhancement
NA
Full compatibility for the
same feature
RCC
Yes
Yes+
Enhancement
NA
Partial compatibility
USART
Yes
Yes+
Limitation fix / One Sample
Bit method / Oversampling by
8
Identical
Full compatibility
I2C
Yes
Yes+
Limitation fix
Identical
Full compatibility
DAC
Yes
Yes+
DMA underrun interrupt
Identical
Full compatibility
ADC
Yes
Yes++
New peripheral
Identical
Partial compatibility
RTC
Yes
Yes++
New peripheral
Identical for the
same feature
Not compatible
FLASH
Yes
Yes++
New peripheral
NA
Not compatible
GPIO
Yes
Yes++
New peripheral
Identical
Not compatible
CAN
Yes
NA
NA
NA
NA



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