AN3364

How to migrate across STM32 series

Doc ID 018608 Rev 3

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I2C

Yes

Yes+

Bug fix

Identical

Full compatibility

TIM

Yes

Yes+

32-bit Counter in TIM2 and

TIM5

Identical

Full compatibility

DAC

Yes

Yes+

DMA underrun interrupt

Identical

Full compatibility

Ethernet

Yes

Yes+

IEEE1588 v2 / Enhanced DMA

descriptor

Identical

Full compatibility

SDIO

Yes

Yes+

Bug fix

Identical

Full compatibility

USB OTG FS Yes

Yes+

- Dynamic trimming capability of

SOF framing period in Host

mode

- Embeds a VBUS sensing

control

Identical

Full compatibility

RTC

Yes

Yes++

New peripheral

Identical for the

same feature

New driver

ADC

Yes

Yes++

New peripheral

Identical for the

same feature

Partial

compatibility

FLASH

Yes

Yes++

New peripheral

NA

Partial

compatibility

DMA

Yes

Yes++

New peripheral

NA

Partial

compatibility

GPIO

Yes

Yes++

New peripheral

Identical

Partial

compatibility

CEC

Yes

NA

NA

NA

NA

USB FS

Device

Yes

NA

NA

NA

NA

Crypto/hash

processor

NA

Yes

NA

NA

NA

RNG

NA

Yes

NA

NA

NA

DCMI

NA

Yes

NA

NA

NA

USB OTG HS NA

Yes

NA

NA

NA

SYSCFG

NA

Yes

NA

NA

NA

Table 4.

STM32 peripheral compatibility analysis F1 versus F4 series (continued)

Peripheral

F1 series

F4 series

Compatibility

Comments

Pinout

SW compatibility

Color key:

= New feature or new architecture (Yes++)

= Same feature, but specification change or enhancement (Yes+)

= Feature not available (NA)