Flash

Overview

This example shows how to write and read flash to a node.

The example is developed on the basis of standard firmware. The added code is in the comment range of /* User Code */ and /* End User Code */.

The flash contains the data "000 000102030405060708090 a0b0cxxxxxxxx7d7e7f" by default, with total length of 128 bytes.
Data on the flash can be modified with the following steps:
1. Uncomment #define FLASH_WRITE_TEST
2. Declare initial size of buffer
  
  Example: Setting the initial size to 128 bytes
  
  uint_t flash_buf[128] = {0}
3. Declare the actual size of data to be written
  
  Example: Setting the actual size to 128 bytes
  
  uint16_t flash_len = 128
Note: Data size can be changed. For example, we want the size to be 1024 bytes:
uint_t flash_buf[1024] = {0}
uint16_t flash_len = 1024

Since FLASH_WRITE_TEST was defined, code inside #ifdef FLASH_WRITE_TEST will be executed which writes data into the flash
After the node is powered on, press the restart key and open the serial port tool to see the result logs