diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild
index 3b363855..45be5322 100644
--- a/main/Kconfig.projbuild
+++ b/main/Kconfig.projbuild
@@ -45,7 +45,7 @@ choice BOARD_TYPE
     config BOARD_TYPE_ESP_BOX
         bool "ESP BOX"
     config BOARD_TYPE_ESP_BOX_LITE
-        bool "ESP BOX Lite"        
+        bool "ESP BOX Lite"
     config BOARD_TYPE_KEVIN_BOX_1
         bool "Kevin Box 1"
     config BOARD_TYPE_KEVIN_BOX_2
@@ -207,7 +207,7 @@ choice DISPLAY_LCD_TYPE
     config LCD_ST7796_320X480
         bool "ST7796, 分辨率320*480 IPS"
     config LCD_ST7796_320X480_NO_IPS
-        bool "ST7796, 分辨率320*480, 非IPS"    
+        bool "ST7796, 分辨率320*480, 非IPS"
     config LCD_ILI9341_240X320
         bool "ILI9341, 分辨率240*320"
     config LCD_ILI9341_240X320_NO_IPS
diff --git a/main/led/gpio_led.cc b/main/led/gpio_led.cc
index fcd58662..5089c6b8 100644
--- a/main/led/gpio_led.cc
+++ b/main/led/gpio_led.cc
@@ -190,7 +190,7 @@ void GpioLed::OnFadeEnd() {
                     ledc_channel_.channel, LEDC_FADE_NO_WAIT);
 }
 
-bool GpioLed::FadeCallback(const ledc_cb_param_t *param, void *user_arg) {
+bool IRAM_ATTR GpioLed::FadeCallback(const ledc_cb_param_t *param, void *user_arg) {
     if (param->event == LEDC_FADE_END_EVT) {
         auto led = static_cast<GpioLed*>(user_arg);
         led->OnFadeEnd();
diff --git a/main/led/gpio_led.h b/main/led/gpio_led.h
index 6f6a2c1d..4d1f5db6 100644
--- a/main/led/gpio_led.h
+++ b/main/led/gpio_led.h
@@ -41,7 +41,7 @@ class GpioLed : public Led {
     void StartContinuousBlink(int interval_ms);
     void StartFadeTask();
     void OnFadeEnd();
-    static bool FadeCallback(const ledc_cb_param_t *param, void *user_arg);
+    static bool IRAM_ATTR FadeCallback(const ledc_cb_param_t *param, void *user_arg);
 };
 
 #endif  // _GPIO_LED_H_