SWPA230A May   2017  – June 2018 CC3120 , CC3120MOD , CC3220MOD , CC3220MODA , CC3220R , CC3220S , CC3220SF

 

  1.   CC3120 and CC3220 SimpleLink™ Wi-Fi® Embedded Programming
    1.     Trademarks
    2. 1 Introduction
    3. 2 Embedded Programming Schemes
    4. 3 Setup
    5. 4 Bootloader Protocol
      1. 4.1 Overview
      2. 4.2 General Message Format
      3. 4.3 Commands
        1. 4.3.1 Get Status
        2. 4.3.2 Get Storage List
        3. 4.3.3 Raw Storage Write
        4. 4.3.4 Get Version Info
        5. 4.3.5 Raw Storage Erase
        6. 4.3.6 Get Storage Info
        7. 4.3.7 Execute from RAM
        8. 4.3.8 Switch UART to APPS MCU
        9. 4.3.9 FS Programming
      4. 4.4 Responses
        1. 4.4.1 Ack
        2. 4.4.2 Nack
        3. 4.4.3 Last Status
        4. 4.4.4 Storage List
        5. 4.4.5 Storage Info
        6. 4.4.6 Version Info
    6. 5 Embedded Programming Procedure
      1. 5.1 Overview
      2. 5.2 High-Level Flow Diagram
      3. 5.3 Image Programming in Detail
        1. 5.3.1  Step 1: Target Connection
        2. 5.3.2  Step 2: Target Detection
        3. 5.3.3  Step 3: MUX UART to the Network Processor
        4. 5.3.4  Step 4: Get SRAM Storage Info
        5. 5.3.5  Step 5: Raw Storage Erase – SRAM
        6. 5.3.6  Step 6: Raw Storage Write – SRAM
        7. 5.3.7  Step 7: Execute from RAM
        8. 5.3.8  Step 8: Get SFLASH Storage Info
        9. 5.3.9  Step 9: Raw Storage Erase – SFLASH
        10. 5.3.10 Step 10: Raw Storage Write – SFLASH
        11. 5.3.11 Step 11: FS Programming
        12. 5.3.12 Step 12: Device Reset
  2.   Revision History

5.3.7 Step 7: Execute from RAM

After the bootloader patches are programmed to the SRAM, it is required to execute the code. The ROM bootloader ROM is executed together with the programmed patches.

The procedure for executing the bootloader from the RAM follows:

  1. The main processor sends the Execute from RAM command.
  2. The CC3120 or CC3220 device responds with an Ack. This first Ack is to indicate a command is complete.
  3. The CC3120 or CC3220 device sends a second Ack to indicate that initialization is completed.