Introduction to China Mobile oneos development board

Move middle OneOS Introduction to development board learning

（ As a professional lighting enthusiast , Before learning any development board, you should find the learning materials first , And then learning OneOS The kernel part of , Peripheral part , System components, etc ）

OneOS

OneOS It is a lightweight operating system launched by China Mobile in the field of Internet of things , With tailorable 、 Cross platform 、 low power consumption 、 High safety and other characteristics , Support ARM Cortex-A and Cortex-M、MIPS、RISC-V And other mainstream chip architectures , compatible POSIX、CMSIS And so on , Support Javascript、MicroPython And other high-level language development modes , Provide graphical development tools , Can effectively improve the development efficiency 、 Reduce development costs , Help users develop stable and reliable products quickly 、 Secure and easy-to-use Internet of things applications .

OneOS Online development document

OneOS framework

OneOS The overall architecture adopts hierarchical design , The main body is driven by 、 kernel 、 Components 、 The security framework consists of . Adopt the mode of one lightweight kernel and multiple system components , Plus the adaptation support of Shanghai's hardware , send OneOS Extremely scalable and easy to use . The overall architecture of the operating system is shown in the figure below ：

kernel

Minimalist design ideas , It has excellent real-time response characteristics while reducing resource overhead , Support multi task management and scheduling , Provide a wealth of IPC Strategy , Such as semaphore 、 The mutex 、 Message queue 、 Mailbox, etc , Provides efficient and reliable RTOS Kernel support .

drive

Provide a wealth of BSP Plate level support , It is suitable for more than 1000 models MCU, Support ARM、RISC-V、MIPS、Xtensa、C-Sky And other mainstream architectures , Through abstract design , Manage all peripherals as devices , It greatly improves the convenience of application development .

Components

Provide including network protocol 、 Cloud platform access 、 Remote upgrade 、 file system 、 Log system 、 The test framework 、 Debugging tools and many other general service capabilities , It also includes complete solutions for professional application fields such as high-precision positioning . Due to the modular design , So the components are independent of each other , Low coupling , Easy to cut flexibly .

Safety management framework

The terminal side implements lightweight active detection and trust measurement based on trust root , Provide lightweight cryptographic algorithm library and lightweight key management and key agreement mechanism , Achieve end-to-end secure communication . The platform side is based on big data situation awareness technology , Help users create end-to-end security profiles , Make different security management policies according to the application scenarios .

OneOS characteristic

Flexible tailoring

Preemptive real-time multitasking RTOS kernel , Support multitasking 、 Software timer 、 Semaphore 、 The mutex 、 Message queue 、 Mailbox and real-time scheduling ,RAM and ROM Minimal resource footprint . Flexible cutting , With rich components , Adapt to different customer needs .

Cross chip platform

Applications can be seamlessly ported , Greatly improve the software reuse rate . The mainstream chip architectures supported are ：ARM Cortex-A and Cortex-M、MIPS、RISC-V etc. . Support almost everything MCU And the mainstream NB-IOT、4G、WIFI、 Bluetooth communication chip .

Rich components

Provide rich component functions , Such as interconnection 、 End cloud integration 、 Remote upgrade 、 Indoor and outdoor positioning 、 Low power consumption control, etc . At the same time, it provides open third-party component management tools , Support to add various third-party components , So as to expand the system functions .

Easy to develop

One stop development tool OneOS Studio It can be used to configure the functions of the kernel and components , Support free cutting of components , Let the system be built as a building block on demand , At the same time, it can help users track and debug , Fast location problem .

Low power design

Support MCU And power management of peripheral devices , Users can select corresponding low-power schemes according to business scenarios , The system will automatically adopt the corresponding power consumption control strategy , Sleep and frequency and voltage regulation , Effectively reduce the overall power consumption of the equipment .

Safety design

For the limited resources of IOT devices 、 Massive connections 、 Network heterogeneity, etc , Reference equal protection 2.0 And 《GB/T 36951-2018 Information security technology Security technical requirements for Internet of things sensing terminal application 》 Other norms , In system security 、 Communication security 、 Data security and other aspects provide multidimensional security protection capabilities .

OpenCPU Development framework

Support communication SoC chip OpenCPU Development mode , It provides developers with an efficient development method to shield the differences of complex communication chips , Provide a unified development experience . meanwhile , Under the same business function , Reduce the additional equipment MCU Overhead and memory usage , Significantly reduce equipment costs .

license agreement

OneOS Code follows Apache 2.0 license Open source licenses .

Development board recommendation

Million coupling creation

Wanlian development board , It is based on STM32,NXP Such as a series of chip development board , The utility model is composed of a core board with different processing cores and a universal coupling bottom board . The universal coupling backplane is universal , The core board currently has STM32L475VGT6、STM32F401VET6 And NXPLPC55S69 Three models , Users can select different core boards according to their needs .

Introduction to universal coupling Tiangong

Wanlian Tiangong STM32F103

Designed for beginners . It's actually a punctual atom STM32F103 Development board , To learn and use the tutorial, you can refer to the tutorial on the use of punctual atoms .

China Mobile OneOS Open the box evaluation of the development board

2022 Mid year shift and punctual atom introduction OneOS Study the tutorial .

OneOS Getting started with the kernel series

OneOS Introductory device driver series

OneOS Introductory component series

Ten thousand couples open things

The main control chip of wancoupler Qiwu development board is （ domestic ） Smart MM32F3277G8P, On board AHT20 Temperature and humidity sensor , On board ESP8266 WiFi modular , Convenient access to the Internet , On board USB-TTL Interface , Convenience and PC Connect for serial communication .
Specially designed for beginners , Provide comprehensive basic hardware capabilities , It also covers the manual operation instruction tutorial , It is convenient for developers to understand OneOS The charm of the system .

Hardware resources Interface is rich Easy to get started

Interface class

1.1 On board USB-TTL Interface ： Qiwu development board Debug UART Output interface , The hardware interface is USB Type-C Female seat , The directly connected computer device is identified as CH340 A serial port , Can be used as 5V Power supply interface .

1.2 MCU USB0 Interface ：MM32F3277 USB Interface , Support USB2.0 Full-Speed（ Full speed ）. The hardware interface is USB Type-C Female seat , Can be used as 5V Power supply interface .

1.3 Screen interface ： This interface can use the TFT1.8 Inch screen , You can also use 114 Inch or 2.0 " IPS The screen , Or use OLED The screen , For the connection method, see the subsequent interface explanation .

1.4 Camera interface ： This interface can be connected to camera photoelectric sensor , Small drill wind Hardware binary camera compatible with zhufei technology 、 Total drill wind global shutter grayscale camera .
1.5 SWD Debug interface ： This interface connects MM32F3277 Chip SWD Debug pin , Which can directly use zhufei technology DAP Debug the downloader and ARM Debug the downloader to debug and download .

1.6 JTAG Debug interface ： The standard JTAG Interface , You can use Jlink The debugging Downloader is directly connected to debug and download .

1.7 RTC The battery ： Button battery snap , Button batteries can be used as chips RTC Power supply .

1.8 Power expansion interface ： In order to facilitate the user's wiring test , Reserved 3V3、5V And GND Interface .

1.9 I0 Expand the interface ：2.54mm Spaced double row pin connector , The part on the chip IO Pin , Contains some common functions such as ADC、PWM、UART And SPI etc. .

1.10 NRF2401 Interface ：2.54mm Spaced double row seat interface , You can directly use the common SPI Interface NRF24L01 modular .

1.11 SD（TF） cassette ：SD Card slot , You can use SD（TF） card .

Module class

2.1 Buzzer ： Active buzzer , Using chip B5 Pin control , have access to PWM Mode tuning .

2.2 AHT20 Temperature and humidity sensor ： The temperature and humidity sensor on the development board , Use IC Mode to drive the corresponding chip B10/B11 Pin .

2.3 ESP8266 WiFi modular ： Wireless on the development board WiFi modular , Use UART Mode to drive the corresponding chip BO/B1 Pin .

Key class

3.1 User key ： Connect to MCU Of D12/D140/15 Pin , When pressed, the corresponding pin is at low level .

3.2 Function buttons /RST Key ： Connect to MCU Of RST Pin , When pressed, the chip reset pin level is pulled low to enter reset .

3.3 Function buttons /BOOTO Key ： Connect to MCU Of H3 Pin , When MCU When entering the running state from the reset state , If this key is pressed , be MCU Get into ISP Boot mode .

Jumper class

Serial port selector switch ： This jumper switch can select Debug UART Of Tog Information from SWD Debug the interface output from onboard USB-TTL Interface output .

Indicator lights

RGB Indicator light ：RGB Lamp beads ,RED Corresponding chip A1 Pin ,GREEN Corresponding chip A2 Pin ,BLUE Corresponding chip A3 Pin , The corresponding pin can be used PWM perhaps IO Way driven .

Power indicator ： On the motherboard 3V3 Power supply indicator , The normal yellow light indicates that the power supply is normal .

Learning materials of Wanlian Qiwu development board

MM32 Study

Smart microelectronics was founded in 2011 year , It is commonly used in China 32 position MCU Product and solution providers .
Smart microelectronics MCU Products with MM32 For the identity , be based on Arm Cortex-M Family kernel , Independent research and development of software and hardware and ecosystem .

Smart MM32 series MCU Manual routines Pack Package download guide

Smart microelectronics MM32 MCU Use sharing Video tutorial

Zhufei technology open source library

Wanlian Qiwu development board is an Internet of things development board designed and produced by zhufei technology . So when learning to use , You can find relevant open source materials

Flying technology MM32F327XG8P Open source library

Wanlian Qiwu development board routine data

Development board routine data collection Extraction code ：8f9u

Development board support MDK-Keil Development

The Qiwu development board provides Keil Of Pack package , Use Keil Development 32 Bit chip , For most developers, there is a certain foundation , I can get started very quickly .

Engineering formwork

OneOS Official routine

/** *********************************************************************************************************************** * Copyright (c) 2020, China Mobile Communications Group Co.,Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. * * @file main.c * * @brief User application entry * * @revision * Date Author Notes * 2020-02-20 OneOS Team First Version *********************************************************************************************************************** */

#include <board.h>
#include <timer/clocksource.h>
static void user_task(void *parameter)
{
    
    int i = 0;

    for (i = 0; i < led_table_size; i++)
    {
    
        os_pin_mode(led_table[i].pin, PIN_MODE_OUTPUT);
    }

    while (1)
    {
    
        for (i = 0; i < led_table_size; i++)
        {
    
            os_pin_write(led_table[i].pin, led_table[i].active_level);
            os_task_msleep(200);
            os_pin_write(led_table[i].pin, !led_table[i].active_level);
            os_task_msleep(200);
        }
    }
}

int main(void)
{
    
    os_task_t *task;

    task = os_task_create("user", user_task, NULL, 1024, 3);
    OS_ASSERT(task);
    os_task_startup(task);

    return 0;
}