SWPA230A May 2017 – June 2018 CC3120 , CC3120MOD , CC3220MOD , CC3220MODA , CC3220R , CC3220S , CC3220SF
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CC3120 and CC3220 SimpleLink™ Wi-Fi® Embedded Programming
- Trademarks
- 1 Introduction
- 2 Embedded Programming Schemes
- 3 Setup
- 4 Bootloader Protocol
- 5
Embedded Programming Procedure
- 5.1 Overview
- 5.2 High-Level Flow Diagram
- 5.3
Image Programming in Detail
- 5.3.1 Step 1: Target Connection
- 5.3.2 Step 2: Target Detection
- 5.3.3 Step 3: MUX UART to the Network Processor
- 5.3.4 Step 4: Get SRAM Storage Info
- 5.3.5 Step 5: Raw Storage Erase – SRAM
- 5.3.6 Step 6: Raw Storage Write – SRAM
- 5.3.7 Step 7: Execute from RAM
- 5.3.8 Step 8: Get SFLASH Storage Info
- 5.3.9 Step 9: Raw Storage Erase – SFLASH
- 5.3.10 Step 10: Raw Storage Write – SFLASH
- 5.3.11 Step 11: FS Programming
- 5.3.12 Step 12: Device Reset
- Revision History
5.3.2 Step 2: Target Detection
It is essential to determine whether the connected device is a CC3120 or CC3220. It is important because additional steps are required for the CC3220. The provided information indicates whether the device is a CC3220 (nonsecured), CC3220S, or CC3220SF (flash device).
The procedure for detecting the target follows:
- The main processor sends the Get Version Info command.
- The CC3120 or CC3220 device responds with an Ack, followed by the Version Info response. The first byte of the Chip type field must be tested.
- The main processor responds with an Ack.
If (chip type & 0x10) //the device is CC3220 flavor//
If (chip type == 0x10) //the device is CC3220 (nonsecured)//
If (chip type == 0x18) //the device is CC3220S (secured ROM)//
If (chip type == 0x19) //the device is CC3220SF (secured flash)//
else //the device is CC3220 flavor//
Figure 4 shows the Get Version Info command and the Version Info response.
Figure 4. Get Version Info