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Comparison of operation efficiency between STM32 and MSP430
Of course, stm32 is efficient. And much higher, much higher.

First of all, stm32 is a 32-bit microcontroller, which is several times faster than 16-bit microcontroller.

Secondly, the main frequency of stm32 microcontroller can reach 72m, and the main frequency of msp430 is only about 8M.

Finally, stm32 has many more instructions than 430, paying attention to power consumption and losing a lot of performance.