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Energy Micro's Gecko micro controller scores 15.4 CoreMark

Posted: 03 Sep 2012 ?? ?Print Version ?Bookmark and Share

Keywords:EFM32 Gecko? IAR Embedded Workbench? Embedded Microprocessor Benchmark Consortium? MCU peripherals?

In an evaluation using IAR Systems' tools, Energy Micro's 32bit EFM32 Gecko microcontroller has demonstrated the industry's best CoreMark number for a device based on the feature-rich ARM Cortex-M3 core.

The EFMTG840F32 achieved a score of 15.4 CoreMark/mA using IAR Embedded Workbench for ARM version 6.40, over 20 percent more efficient in active mode than even the Cortex-M0+ devices (a less powerful processor) recently launched by a major semiconductor company. The Embedded Microprocessor Benchmark Consortium (EEMBC), a non-profit organization founded in 1997, developed CoreMark processor benchmarking to enable real-world performance comparisons between different microcontrollers and processors.

The EFM32 Gecko's performance benefited from compiler improvements in version 6.40 of IAR Embedded Workbench for ARM. This supports Energy Micro's assertion that it's a combination of code optimization matched to energy-friendly sleep modes that delivers the lowest possible system energy consumption, rather than slower processing.

Additionally, Gecko technology enables EFM32 MCU peripherals to communicate without using the CPU, further enabling the processor to remain in deep sleep for longer. The EFM32 wake up time is then just 2?s, making it fast and efficient to switch into active mode, process data then go back to sleep.

Mike Skrtic, IAR Systems' Strategic Account Manager, stated that IAR Systems is glad that customers can benefit from our significant work on code optimization. In performance terms, the EFM32 Gecko family scores 2.93 CoreMark/MHz, providing unprecedented speed from a very energy-efficient MCU platform.





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