There are lot of ARM based microcontroller offered by ST.
They use ARM Cortex M processor with ST peripheral such as GPIO, ADC etc.
They mostly fall into these following groups:
- ARM Cortex M0
- ARM Cortex M3
- ARM Cortex M4
- ARM Cortex M33
- ARM Cortex M7
which is also known as M4F as it has an FPU unit.
Then there is ST classification :
- High performance
Higher clock speed, Has almost everything included from that segment. - Mainstream
Balanced between Low Power and High Performance. - Low Power
Clock speed reduced to a limit, Has additional hardware for switching off individual peripherals. - Wireless
Has cortex M0+, Peripherals support for radio
The widely available stm32f1 microcontroller also known as the blue pill has ARM cortex M3.
STM32L4 has an ARM Cortex M4F.
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