SWRU577 July   2021 CC3100 , CC3200

 

  1.   Trademarks
  2. 1Introduction
  3. 2Embedded Programming Schemes
  4. 3Setup
  5. 4Bootloader 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. 5Embedded 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 9: Raw Storage Erase – SFLASH
      6. 5.3.6 Step 10: Raw Storage Write – SFLASH
      7. 5.3.7 Step 11: FS Programming
      8. 5.3.8 Step 12: Device Reset

5.3.5 Step 9: Raw Storage Erase – SFLASH

Before downloading the patches to the SFLASH, it is essential to erase the relevant memory location in the SFLASH. The procedure for erasing the SFLASH follows:

  1. The main processor sends the Raw Storage Erase command. The user must provide the storage ID for the SFLASH, offset in blocks, and number of blocks to erase. In this case, erase two blocks starting from offset 33.
  2. The CC3100 or CC3200 device responds with an Ack.
  3. The main processor responds with an Ack.
  4. The main processor sends the Get Status command.
  5. The CC3100 or CC3200 device responds with an Ack followed by the Last Status response. Only the fourth byte should be inspected; 0x40 means success whereas 0x4A indicates an error.
  6. The main processor sends an Ack response.

Figure 5-7 shows the Raw Storage Erase command.

GUID-1FE810B5-CE99-4DD5-9F36-B043686FD6A7-low.png Figure 5-7 Raw Storage Erase to SFLASH