可用的文件，全部

Core/Bsp/bsp_flash.c

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+/**
+ * @file    bsp_flash.c
+ * @brief   Flash storage driver implementation
+ */
+
+#include "bsp_flash.h"
+#include "main.h"
+
+/* Default settings */
+static const system_settings_t default_settings = {
+    .fan_threshold = 30.0f,
+    .fan_mode = 1,      // AUTO
+    .light_state = 0,   // OFF
+    .valid = SETTINGS_VALID_FLAG
+};
+
+/**
+ * @brief  Get Flash page address
+ */
+static uint32_t get_page_address(uint32_t addr)
+{
+    return addr & 0xFFFFF800;  // 2KB page alignment
+}
+
+/**
+ * @brief  Erase Flash page
+ */
+static HAL_StatusTypeDef erase_page(uint32_t page_address)
+{
+    FLASH_EraseInitTypeDef erase_init;
+    uint32_t page_error = 0;
+    
+    HAL_FLASH_Unlock();
+    
+    erase_init.TypeErase = FLASH_TYPEERASE_PAGES;
+    erase_init.PageAddress = page_address;
+    erase_init.NbPages = 1;
+    
+    HAL_StatusTypeDef status = HAL_FLASHEx_Erase(&erase_init, &page_error);
+    
+    HAL_FLASH_Lock();
+    
+    return status;
+}
+
+/**
+ * @brief  Load settings from Flash
+ */
+bool BSP_Flash_LoadSettings(system_settings_t *settings)
+{
+    if (settings == NULL) return false;
+    
+    /* Read from Flash */
+    system_settings_t *flash_data = (system_settings_t *)SETTINGS_ADDR;
+    
+    /* Check valid flag */
+    if (flash_data->valid == SETTINGS_VALID_FLAG)
+    {
+        settings->fan_threshold = flash_data->fan_threshold;
+        settings->fan_mode = flash_data->fan_mode;
+        settings->light_state = flash_data->light_state;
+        settings->valid = flash_data->valid;
+        return true;
+    }
+    
+    /* No valid settings, use defaults */
+    *settings = default_settings;
+    return false;
+}
+
+/**
+ * @brief  Save settings to Flash
+ */
+bool BSP_Flash_SaveSettings(const system_settings_t *settings)
+{
+    if (settings == NULL) return false;
+    
+    uint32_t page_addr = get_page_address(SETTINGS_ADDR);
+    
+    /* Erase page first */
+    if (erase_page(page_addr) != HAL_OK)
+    {
+        return false;
+    }
+    
+    HAL_FLASH_Unlock();
+    
+    /* Write data halfword by halfword */
+    uint16_t *src = (uint16_t *)settings;
+    uint32_t dst = SETTINGS_ADDR;
+    
+    for (uint32_t i = 0; i < sizeof(system_settings_t) / 2; i++)
+    {
+        if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, dst, *src) != HAL_OK)
+        {
+            HAL_FLASH_Lock();
+            return false;
+        }
+        dst += 2;
+        src++;
+    }
+    
+    HAL_FLASH_Lock();
+    
+    return true;
+}
+
+/**
+ * @brief  Reset settings to default
+ */
+void BSP_Flash_ResetSettings(void)
+{
+    BSP_Flash_SaveSettings(&default_settings);
+}