CC1352P: does NVS driver check if new data to write is the same as old one before wring into flash

Hi Sid,

The function used by example projects to write in NVS seems to check if content of item is the same as existing one.

/*********************************************************************
 * @fn      NV_writeItem
 *
 * @brief   Write a data item to NV.
 *
 * @param   nv_id - Valid NV item Id.
 * @param   len   - Length of data to write.
 * @param   *pBuf - Data to write.
 *
 * @return  NVINTF_SUCCESS if successful, failure code otherwise.
 */
uint8 NVOCOP_writeItem( NVINTF_itemID_t nv_id, uint16 len, void *pBuf )
//...
      for (i = 0; i < len; i++)
      {
        HalFlashRead(NV_PAGE, offset, &tmp, 1);
        if (tmp != ((uint8 *)pBuf)[i])
        {
          break;
        }
        offset++;
      }

      if (i == len)
      {
        // Changed value is the same value as before.
        // Return here instead of re-writing the same value to NV.
        return NVINTF_SUCCESS;
      }
//...

I guess as long as we call this function instead of directly calling the NVS driver, we don't need to perform such check ourselves in customized applicaion.

Best,

ZL