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
5.3.9 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:
- 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.
- The CC3120 or CC3220 device responds with an Ack.
- The main processor responds with an Ack.
- The main processor sends the Get Status command.
- The CC3120 or CC3220 device responds with an Ack followed by the Last Status response. Only the fourth byte should be inspected; 0x40 means success whereas other values indicate error.
- The main processor sends an Ack response.
Figure 12 shows the Raw Storage Erase command.
Figure 12. Raw Storage Erase to SFLASH