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Overview
We often hear about certain smartphones or computers’ performance scores at release events, and these scores reflect the device’s performance indicators.
When developing products with STM32, we generally consider various performance aspects of the MCU.
For MCUs, one important indicator is power consumption, and another important indicator is performance.
When we enter ST’s official microcontroller webpage, we will find that ST classifies MCUs into different levels, as shown in the figure below:
https://www.st.com/en/microcontrollers.html
From the above hierarchical relationship, we can roughly understand the power consumption and performance of ST’s various MCUs.
STM32 CoreMark Score
The STM32 family of 32-bit microcontrollers is designed based on the ARM Cortex®-M processor, providing users with new freedom.
The products integrate high performance, real-time capabilities, digital signal processing, low power consumption, low voltage operation, and connectivity while maintaining full integration and usability.
According to performance classification, STM32’s various series of MCUs are categorized into several major product types as shown in the figure below. For specific information, please refer to the official website.
https://www.st.com/en/microcontrollers/stm32-32-bit-arm-cortex-mcus.html
In the embedded processor field, the most well-known and common tests for CPU performance are: Dhrystone and CoreMark.
1.CoreMark is a standard used to measure the performance of the central processing unit (CPU, or microcontroller MCU) in embedded systems.
2.DMIPS: Dhrystone Million Instructions executed Per Second. It calculates the processing capability of the system in one second, measured in millions, i.e., (MIPS). It is primarily used to measure integer calculation capabilities.
How is the CoreMark Score Obtained?
CoreMark is a standard used to measure CPU performance. This standard was proposed in 2009 by Shay Gla-On of the EEMBC organization and attempts to develop into an industrial standard to replace the outdated Dhrystone standard.
Like Dhrystone, CoreMark is compact, portable, easy to understand, free, and displays a single numeric benchmark score. Unlike Dhrystone, CoreMark has specific running and reporting rules designed to avoid Dhrystone’s issues.
The CoreMark score is obtained by running C language code. It mainly includes the following operations: enumeration (searching and sorting), mathematical matrix operations (ordinary matrix calculations), and state machines (to determine if the input stream contains valid numbers), and finally includes CRC (Cyclic Redundancy Check).
In other words, CoreMark uses a set of test codes written in C language, and by running this code, we can test the performance of your MCU.
CoreMark Test Code
Here we can refer to the CoreMark official information at:
https://www.eembc.org/coremark/index.php
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We are Nimo, the founder of Darwin, and we only talk about technology, not flirting. DarwinDarwin Online Education Platform aims to serve professionals in the electronics industry, providing skill training videos covering popular topics in various subfields, such as embedded systems, FPGA, artificial intelligence, etc. It customizes layered learning content tailored to different groups, such as commonly used knowledge points, disassembly assessments, electric competitions/intelligent vehicles/postgraduate entrance examinations, etc. Welcome to follow.
