Conclusion

AN2945

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Doc ID 15468

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Conclusion

This application note discusses the points that ease the transition from the 8-bit STM8S to

the 32-bit STM32 devices, and vice versa. Based on the 8- to 32-bit core performance

continuum, the new STM32 and STM8S MCU families have a lot of common features. At the

peripheral level, they share standard IPs like timers and communication interfaces. At the

system level, they have identical features, reducing the external component count (clock and

reset systems, safety features, etc).

These common features are complemented by a set of software libraries that come as a

major help to get started for new development. The libraries can also serve as foundations

for a unified development platform supporting both 8- and 32-bit MCUs owing to the

abstraction level they both offer.

Finally, the common features of the STM8S and STM32 devices with the benefits of their

software libraries maximize design re-use and decrease time to market, specially if the

application has derivatives with various requirements in terms of processing power,

connectivity or control function complexity.