Ultra-low power leader STM32L476 wins the heart of Huami AMAZFIT sports watch

Latest update time：2016-12-27

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Display weather, air quality, six sports modes, detect exercise and body changes, convenient Alipay, Bluetooth music listening, etc. High-performance AMAZFIT watch,

It can actually have a very long battery life !! (⊙ o ⊙)

In addition to a low-power platform,

This is largely due to our STM32L476 chip.

A chip with both ultra-low power consumption and high performance ! ! ╮(╯_╰)╭

❤❤STM32L476❤❤: Do you think it is so easy to win the heart of this watch? That's because I am very good~~~╮(╯▽╰)╭

STM32L4 series Ultra-low power MCU with high performance

Excellent ultra-low power performance: FlexPowerControl with scalable performance achieves optimal power efficiency; its EEMBC ULPBench score is 177 ULPBench™-CP, which exceeds almost all products in the ultra-low power market.

High performance: Up to 1MB Flash (dual sectors) and 128KB SRAM, with DSP, FPU and ART Accelerator™ accelerators, which reach 100 DMIPS/273 CoreMark at 80MHz; multiple AHB bus matrix and DMA controller optimize performance.

Figure 1: Overview of low power modes

Figure 2: STM32L4 series overview

Figure 3: STM32L476 block diagram

Smart peripherals

》Low power UART and I²C communication interface

》Low power time counter (16-bit low power timer)

》Up to 7 SPIs, including Quad-SPI supporting software execution

》Peripheral communication clock independent of the main system clock

》Support for Σ△ modulators for digital microphones (HW filter for PDM to PCM conversion)

Figure 4: L476 hardware tools

From left to right: NUCLEO-L476xx; STM32L476G-DISCO; STM32L476G-EVAL. In addition to hardware tools, we also have STM32CubeMX software tools to help rapid development.

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