diff --git a/.settings/language.settings.xml b/.settings/language.settings.xml
index 7933c7b..e5f8a71 100644
--- a/.settings/language.settings.xml
+++ b/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-277815237655287688" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1149216973983548247" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-279773700873197271" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1151175437201457830" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/usrc/main.cpp b/usrc/main.cpp
index 98d3bd4..543a5a3 100644
--- a/usrc/main.cpp
+++ b/usrc/main.cpp
@@ -46,15 +46,15 @@ static uint32_t m_fan0_cnt;
 static uint32_t m_fan1_cnt;
 
 extern "C" {
-void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
-  if (GPIO_Pin == m_fan0_state.pin) {
-    m_fan0_cnt++;
-  }
-
-  else if (GPIO_Pin == m_fan1_state.pin) {
-    m_fan1_cnt++;
-  }
-}
+// void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
+//   if (GPIO_Pin == m_fan0_state.pin) {
+//     m_fan0_cnt++;
+//   }
+
+//   else if (GPIO_Pin == m_fan1_state.pin) {
+//     m_fan1_cnt++;
+//   }
+// }
 }
 
 void debug_light_ctrl() {
@@ -162,11 +162,11 @@ void umain() {
 
   extern_if_service_init();
 
-  zaf_gpio_init_as_output(&m_fan0_power, PD0, kxs_gpio_pullup, true, false);
-  zaf_gpio_init_as_output(&m_fan1_power, PD1, kxs_gpio_pullup, true, false);
+  // zaf_gpio_init_as_output(&m_fan0_power, PD0, kxs_gpio_pullup, true, false);
+  // zaf_gpio_init_as_output(&m_fan1_power, PD1, kxs_gpio_pullup, true, false);
 
-  zaf_gpio_init_as_input(&m_fan0_state, PD5, kxs_gpio_pullup, kxs_gpio_rising_irq, false);
-  zaf_gpio_init_as_input(&m_fan1_state, PD6, kxs_gpio_pullup, kxs_gpio_rising_irq, false);
+  // zaf_gpio_init_as_input(&m_fan0_state, PD5, kxs_gpio_pullup, kxs_gpio_rising_irq, false);
+  // zaf_gpio_init_as_input(&m_fan1_state, PD6, kxs_gpio_pullup, kxs_gpio_rising_irq, false);
 
   ZLOGI(TAG, "system init done");
   int32_t count = 0;
@@ -180,7 +180,7 @@ void umain() {
     }
 
     if (count % 100 == 0) {
-      ZLOGI(TAG, "fan0:%d, fan1:%d", m_fan0_cnt, m_fan1_cnt);
+      // ZLOGI(TAG, "fan0:%d, fan1:%d", m_fan0_cnt, m_fan1_cnt);
     }
   }
 }