[Huawei lyevk-3861a intelligent IOT development board evaluation] unpacking experience and Hisilicon hi3861v100 chip learning experience

  Out of the box experience

【 Outer packing 】

Plastic packing box , Boards and modules are packed with electrostatic bags

Also from Huawei school 9 month 1 I learned about this development kit in the live broadcast course of No , The product manager of ChinaSoft international introduced the performance of the development board 、 characteristic 、 Application scenarios and usage methods , Lead developers to play with the development board hand in hand , Expand more application scenarios . Interested friends can review the live broadcast ~

Course link          China soft International ： The product manager takes you to play with the development board (huaweiuniversity.com)

【 Master + Core board appreciation 】

Master + Main control board assembly

We start from the master Neatly arranged Single row In line row needle mother seat , And the main control board 、 The rows on both sides of the module cannot be seen , The development kit is plug-in design , It can greatly open the main control board IO mouth , Provide more possibilities for hardware developers , And orderly functional prompt text , Also give comments to developers , This fully reflects the intention of the designer

Pin function notes on the back of the master

I really like this style of design , This can't help but remind me of Texas Instruments used in my undergraduate period MSP430 And its pin notes on the development board , At that time, we compared domestic 8051 Development board ...

TI MSP430 Development board

Now 5 In the past , The domestic development board design is becoming more standard and intimate , This fully reflects the designer's good intentions

【 Lighten up 】

Okay , Don't talk much , Access to electricity , Lighten up ！！！

Start very fast , from LCD in , It is not difficult for us to find that HarmonyOS!

Hayes Hi3861V100

Next, let's have a brief look at this Huawei Hisilicon Hi3861V100

Because I study microelectronics in my undergraduate course （ Electronic information science and technology ） So I love chip design , Although we still teach Application , But we should really understand whether the functions of developing applications are complete , It truly reflects the performance of the hardware , We still need to know the one in our hand Soc Chip ！！！

Hi3861V100 It's a highly integrated 2.4GHz SoC WiFi chip , Integrate IEEE 802.11b/g/n Baseband and RF circuit ,RF The circuit includes a power amplifier PA、 low Noise amplifier LNA、RF balun、 Antenna switch and power management module ; Support 20MHz Standard bandwidth and 5MHz/10MHz Narrow bandwidth , Provides maximum 72.2Mbit/s Physical layer rate .Hi3861V100 WiFi Baseband supports orthogonal frequency division multiplexing （OFDM） technology , And downward compatible with direct sequence spread spectrum （DSSS） And complement keying （CCK） technology , the a IEEE 802.11 b/g/n Various data rates of the protocol .Hi3861V100 Chip integrated high performance 32bit Microprocessor 、 Hardware security engine and rich peripheral interface , Peripheral interfaces include SPI、UART、I2C、PWM、 GPIO And multiplex ADC, At the same time, it supports high speed SDIO2.0 Slave Interface , The highest clock can reach 50MHz; Chip built in SRAM and Flash, Can operate independently , And support stay Flash Run the program on .Hi3861V100 Support HUAWEI LiteOS And third party components , And provide supporting open 、 Easy to use development and debugging environment .Hi3861V100 The chip is suitable for the intelligent terminal field of the Internet of things, such as intelligent household appliances .

Hi3861 Functional block diagram

But here's the thing ！！！

Hi3861 WLAN Module resources Very limited , The whole board has 2MB FLASH,352KB RAM. When writing business code , Pay attention to resource efficiency .

So the next one , Let's learn how to build a development environment , Coming soon ~

Action is better than action

Learn more about LYEVK-3861A Intelligent Internet of things development board suite information

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