TIDUE59A May   2018  – September 2020

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5. 1System Description
    1. 1.1 Key System Specifications
  6. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 CC3220
      2. 2.3.2 CC2640R2F
      3. 2.3.3 DRV8837
    4. 2.4 System Design Theory
      1. 2.4.1 CC3220S to CC2640R2F Interface
      2. 2.4.2 CC3220S to DRV8837 Interface
      3. 2.4.3 Software Architecture
      4. 2.4.4 Network Connection Management
      5. 2.4.5 Provisioning
        1. 2.4.5.1 AP Provisioning and SmartConfig™
        2. 2.4.5.2 Wi-Fi Provisioning Over BLE
      6. 2.4.6 Sending and Receiving Messages Through Cloud
        1. 2.4.6.1 Message Queue Telemetry Transport Protocol
        2. 2.4.6.2 MQTT Client Implementation
      7. 2.4.7 Over-the-Air Updates
        1. 2.4.7.1 HyperText Transfer Protocol
      8. 2.4.8 Security Enablers
        1. 2.4.8.1 Secure Boot
        2. 2.4.8.2 Secure Sockets
          1. 2.4.8.2.1 Hardware Accelerators
          2. 2.4.8.2.2 Simple Network Time Protocol
        3. 2.4.8.3 File System Security
          1. 2.4.8.3.1 Failsafe Files and Bundle Protection
      9. 2.4.9 Low-Power Consumption
  7. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware
        1. 3.1.1.1 CC3220S LaunchPad™ Development Kit
        2. 3.1.1.2 CC2640R2F LaunchPad™ Development Kit
        3. 3.1.1.3 Sensor BoosterPack™ Connections (BMI160)
        4. 3.1.1.4 DRV8837EVM Modifications and Connections
        5. 3.1.1.5 Assembling EVMs
      2. 3.1.2 Software
        1. 3.1.2.1 Getting Started With Software
          1. 3.1.2.1.1 Build simple_np Application and Flash CC2640R2F
          2. 3.1.2.1.2 Use Premade UniFlash ImageCreator Project
          3. 3.1.2.1.3 Importing Project Source Files Into CCS
        2. 3.1.2.2 User Files
        3. 3.1.2.3 Run Wi-Fi® Doorlock Demo
          1. 3.1.2.3.1 Connect CC3220 to Network
          2. 3.1.2.3.2 Networking Functions
            1. 3.1.2.3.2.1 Get Current Date and Time (SNTP)
            2. 3.1.2.3.2.2 Send and Receive Messages (MQTT)
            3. 3.1.2.3.2.3 Perform Software Update Using Dropbox (OTA Update)
    2. 3.2 Testing and Results
      1. 3.2.1 Pass or Fail Tests
      2. 3.2.2 Power Measurements
      3. 3.2.3 Test Setup
        1. 3.2.3.1 CC3220S
        2. 3.2.3.2 CC2640R2F
        3. 3.2.3.3 DRV8837
      4. 3.2.4 Test Results
      5. 3.2.5 Battery Life Estimate
  8. 4Design Files
  9. 5Software Files
  10. 6Related Documentation
    1. 6.1 Trademarks
  11. 7Terminology
  12. 8About the Author
  13. 9Revision History

2.3.1 CC3220

The CC3220x device is part of the SimpleLink MCU platform, which consists of Wi-Fi, low-energy, Sub-1 GHz, and host MCUs that all share a common, easy-to-use development environment, with a single-core SDK and rich tool set. A one-time integration of the SimpleLink platform enables users to add any combination of the devices in the portfolio into their design, allowing 100% code reuse when their design requirements change. For more information, visit the SimpleLink Solutions page on ti.com.

Start a IoT design with a Wi-Fi CERTIFIED, single-chip MCU, SoC, with built-in Wi-Fi connectivity. Created for the IoT, the SimpleLink CC3220x device family from TI is a single-chip solution, integrating two physically-separated, on-chip MCUs. The design includes an application processor, the Arm Cortex-M4 MCU, with a user-dedicated 256KB of RAM and an optional 1MB of XIP flash, as well as a network processor MCU, to run all Wi-Fi and Internet logical layers. This ROM-based subsystem includes an 802.11b/g/n radio, baseband, and MAC, with a powerful crypto engine for fast, secure, internet connections with 256-bit encryption.

The CC3220x wireless MCU family is a part of the second generation of the Internet-on-a-chip family of solutions from TI. This generation introduces new features and capabilities that further simplify the connectivity of devices to the Internet. The new capabilities including the following:

  • IPv6
  • Enhanced Wi-Fi provisioning
  • Enhanced power consumption
  • Enhanced file system security (supported only by the CC3220S and CC3220SF devices)
  • Wi-Fi AP connection with up to four stations
  • More concurrently opened BSD sockets: up to 16 BSD sockets, of which 6 are secure
  • HTTPS support RESTful API support
  • Asymmetric keys crypto library
The CC3220x wireless MCU family supports the following modes: station, AP, and Wi-Fi Direct. The device also supports WPA2 personal and enterprise security, WPA2 + PMF, and WPA3. This subsystem includes embedded TCP/IP and TLS/SSL stacks, the HTTP server, and multiple Internet protocols. The device supports a variety of Wi-Fi provisioning methods including HTTP based on AP mode, SmartConfig Technology, and WPS2.0.

The power-management subsystem includes integrated DC-DC converters that support a wide range of supply voltages. This subsystem enables low-power consumption modes for extended battery life, such as low-power deep sleep, hibernate with RTC (consuming only 4.5 µA), and shutdown mode (consuming only 1 µA).

The device includes a wide variety of peripherals, including a fast parallel-camera interface, I2S, SD, UART, SPI, I2C, and 4-channel ADCs.

The SimpleLink CC3220x family of devices is available in three different variants: CC3220R, CC3220S, and CC3220SF. The CC3220R and CC3220S devices include 256KB of application-dedicated, embedded RAM for code and data, ROM with an external serial-flash bootloader, and peripheral drivers. The CC3220SF device includes an application-dedicated 1MB of XIP flash and 256KB of RAM for code and data, ROM with an external serial-flash bootloader, and peripheral drivers. The CC3220S and CC3220SF device options have additional security features, such as encrypted and authenticated file systems, user IP encryption and authentication, secured boot (authentication and integrity validation of the application image at flash and boot time), and more.

The CC3220x device family is a complete platform solution including software, sample applications, tools, user and programming guides, reference designs, and the E2E online community. The device family is also part of the SimpleLink MCU portfolio and supports the SimpleLink developers ecosystem.