refactor: 完成R8裸机lwIP移植并更新文档

Core/Src/stm32f1xx_it.c

@@ -20,15 +20,11 @@
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
 #include "stm32f1xx_it.h"
-#include "FreeRTOS.h"
-#include "task.h"
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
+#include "ethernetif.h"
 #include "uart_trans.h"
 #include "config.h"
-
-/* External functions from freertos.c */
-extern void notify_ch390_interrupt_from_isr(void);
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -176,14 +172,6 @@ void SysTick_Handler(void)
 
   /* USER CODE END SysTick_IRQn 0 */
   HAL_IncTick();
-#if (INCLUDE_xTaskGetSchedulerState == 1 )
-  if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
-  {
-#endif /* INCLUDE_xTaskGetSchedulerState */
-  xPortSysTickHandler();
-#if (INCLUDE_xTaskGetSchedulerState == 1 )
-  }
-#endif /* INCLUDE_xTaskGetSchedulerState */
   /* USER CODE BEGIN SysTick_IRQn 1 */
 
   /* USER CODE END SysTick_IRQn 1 */
@@ -361,9 +349,9 @@ void EXTI0_IRQHandler(void)
   if (__HAL_GPIO_EXTI_GET_IT(GPIO_PIN_0))
   {
     __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN_0);
-    
-    /* Notify LwIP task */
-    notify_ch390_interrupt_from_isr();
+
+    /* Defer CH390 processing to main loop */
+    ethernetif_set_irq_pending();
   }
 }