今天终于搞清楚了在STM32中用ucos中断的方法了，ucos没有自己移植，用的是别人移植好的例程。之前一直搞不明白ucos中断怎么写，写在哪里。参考了一片网上的论坛，实现了EXTI中断，但是搞不明白在端口的时钟配置要加上 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);AFIO是端口复用，跟端口的中断有什么关系？
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#include "includes.h"
static OS_STK App_TaskStartStk[APP_TASK_START_STK_SIZE];
static void App_TaskCreate(void);
static void App_DispScr_SignOn(void);
static void App_TaskStart(void* p_arg);
static void EXTI_ISR(void);//中断处理函数
_Pin_6 ); //LED1
#define LED_LED1_OFF() GPIO_ResetBits(GPIOC, GPIO_Pin_6 ); //LED1
unsigned char i;
/*
*********************************************************************************************************
* main()
*
* Description : This is the standard entry point for C code. It is assumed that your code will call
* main() once you have performed all necessary initialization.
*
* Argument : none.
*
* Return : none.
*********************************************************************************************************
*/
int main(void)
{
CPU_INT08U os_err;
BSP_IntDisAll(); /* Disable all ints until we are ready to accept them. */
BSP_IntVectSet (BSP_INT_ID_EXTI2 , EXTI_ISR); //中断设置函数
BSP_IntEn (BSP_INT_ID_EXTI2); //中断允许函数
OSInit(); /* Initialize "uC/OS-II, The Real-Time Kernel". */
BSP_Init(); /* Initialize BSP functions. */
App_DispScr_SignOn();
printf("OS Init OK！\r\n");
os_err = OSTaskCreate((void (*) (void *)) App_TaskStart,
/* Create the start task. */
(void *) 0,
(OS_STK *) &App_TaskStartStk[APP_TASK_START_STK_SIZE - 1],
(INT8U) APP_TASK_START_PRIO);
printf("Creat App_TaskStart！\r\n");
#if (OS_TASK_NAME_SIZE >= 11)
OSTaskNameSet(APP_TASK_START_PRIO, (CPU_INT08U *) "Start Task", &os_err);
#endif
OSTimeSet(0);
OSStart(); /* Start multitasking (i.e. give control to uC/OS-II). */
return (0);
}
/*
*********************************************************************************************************
* App_TaskStart()
*
* Description : The startup task. The uC/OS-II ticker should only be initialize once multitasking starts.
*
* Argument : p_arg Argument passed to 'App_TaskStart()' by 'OSTaskCreate()'.
*
* Return : none.
*
* Caller : This is a task.
*
* Note : none.
*********************************************************************************************************
*/
static void App_TaskStart(void* p_arg)
{
(void) p_arg;
OS_CPU_SysTickInit(); /* Initialize the SysTick. */
#if (OS_TASK_STAT_EN > 0)
OSStatInit(); /* Determine CPU capacity. */
#endif
//App_TaskCreate();
//App_DispScr_SignOn();
while (DEF_TRUE)
{
LED_LED1_ON();
OSTimeDlyHMSM(0, 0, 0, 100);
LED_LED1_OFF();
OSTimeDlyHMSM(0, 0, 0, 100);
// EXTI_GenerateSWInterrupt(EXTI_Line2); //EXTI_GenerateSWInterrupt(EXTI_Line6);
}
}
/*
*********************************************************************************************************
* App_TaskCreate()
*
* Description : Create the application tasks.
*
* Argument : none.
*
* Return : none.
*
* Caller : App_TaskStart().
*
* Note : none.
*********************************************************************************************************
*/
static void App_TaskCreate(void)
{
CPU_INT08U os_err;
// os_err = OSTaskCreate((void (*) (void *)) App_TaskLCD, (void *) 0,
// (OS_STK *) &App_TaskLCDStk[APP_TASK_LCD_STK_SIZE - 1],
// (INT8U) APP_TASK_LCD_PRIO);
// printf("Creat App_TaskLCD！\r\n");
//#if (OS_TASK_NAME_SIZE >= 9)
// OSTaskNameSet(APP_TASK_LCD_PRIO, "LCD", &os_err);
//#endif
// os_err = OSTaskCreate((void (*) (void *)) App_TaskKbd, (void *) 0,
// (OS_STK *) &App_TaskKbdStk[APP_TASK_KBD_STK_SIZE - 1],
// (INT8U) APP_TASK_KBD_PRIO);
// printf("Creat App_TaskKbd！\r\n");
//#if (OS_TASK_NAME_SIZE >= 9)
// OSTaskNameSet(APP_TASK_KBD_PRIO, "KeyBoard", &os_err);
//#endif
// os_err = OSTaskCreate((void (*) (void *))
// App_TaskJoystick, (void *)
// 0,
// (OS_STK *) &App_TaskJoystickStk[APP_TASK_Joystick_STK_SIZE - 1],
// (INT8U)
// APP_TASK_Joystick_PRIO);
// printf("Creat App_TaskJoystick！\r\n");
//#if (OS_TASK_NAME_SIZE >= 9)
// OSTaskNameSet(APP_TASK_Joystick_PRIO, "Joystick", &os_err);
//#endif
}
/*
*********************************************************************************************************
* App_DispScr_SignOn()
*
* Description : Display uC/OS-II system information on the USART.
*
* Argument: none.
*
* Return : none.
*
* Caller : App_TaskKbd().
*
* Note : none.
*********************************************************************************************************
*/
static void App_DispScr_SignOn(void)
{
printf("\r\n Micrium uC/OS-II \r\n");
printf(" ST STM32 (Cortex-M3)\r\n\r\n");
printf(" uC/OS-II: V%ld.%ld%ld\r\n", OSVersion() / 100,
(OSVersion() % 100) / 10, (OSVersion() % 10));
printf(" TickRate: %ld \r\n", OS_TICKS_PER_SEC);
printf(" CPU Usage: %ld% \r\n", OSCPUUsage);
printf(" CPU Speed:%ld MHz \r\n", BSP_CPU_ClkFreq() / 1000000L);
printf(" #Ticks: %ld \r\n", OSTime);
printf(" #CtxSw: %ld \r\n\r\n", OSCtxSwCtr);
}
void EXTI_ISR(void)
{
if(EXTI_GetITStatus(EXTI_Line2)!=RESET)
{
EXTI_ClearITPendingBit(EXTI_Line2);
printf("ISR\r\n");
if(i==1)
{
GPIO_ResetBits(GPIOC,GPIO_Pin_7);
i=0;
}
else
{
GPIO_SetBits(GPIOC,GPIO_Pin_7);
i=1;
}
}
}
/*
*********************************************************************************************************
*********************************************************************************************************
* uC/OS-II APP HOOKS
*********************************************************************************************************
*********************************************************************************************************
*/
#if (OS_APP_HOOKS_EN > 0)
/*
*********************************************************************************************************
* TASK CREATION HOOK (APPLICATION)
*
* Description : This function is called when a task is created.
*
* Argument : ptcb is a pointer to the task control block of the task being created.
*
* Note : (1) Interrupts are disabled during this call.
*********************************************************************************************************
*/
void App_TaskCreateHook(OS_TCB* ptcb)
{
}
/*
*********************************************************************************************************
* TASK DELETION HOOK (APPLICATION)
*
* Description : This function is called when a task is deleted.
*
* Argument : ptcb is a pointer to the task control block of the task being deleted.
*
* Note : (1) Interrupts are disabled during this call.
*********************************************************************************************************
*/
void App_TaskDelHook(OS_TCB* ptcb)
{
(void) ptcb;
}
/*
*********************************************************************************************************
* IDLE TASK HOOK (APPLICATION)
*
* Description : This function is called by OSTaskIdleHook(), which is called by the idle task. This hook
* has been added to allow you to do such things as STOP the CPU to conserve power.
*
* Argument : none.
*
* Note : (1) Interrupts are enabled during this call.
*********************************************************************************************************
*/
#if OS_VERSION >= 251
void App_TaskIdleHook(void)
{
}
#endif
/*
*********************************************************************************************************
* STATISTIC TASK HOOK (APPLICATION)
*
* Description : This function is called by OSTaskStatHook(), which is called every second by uC/OS-II's
* statistics task. This allows your application to add functionality to the statistics task.
*
* Argument : none.
*********************************************************************************************************
*/
void App_TaskStatHook(void)
{
}
/*
*********************************************************************************************************
* TASK SWITCH HOOK (APPLICATION)
*
* Description : This function is called when a task switch is performed. This allows you to perform other
* operations during a context switch.
*
* Argument : none.
*
* Note : 1 Interrupts are disabled during this call.
*
* 2 It is assumed that the global pointer 'OSTCBHighRdy' points to the TCB of the task that
* will be 'switched in' (i.e. the highest priority task) and, 'OSTCBCur' points to the
* task being switched out (i.e. the preempted task).
*********************************************************************************************************
*/
#if OS_TASK_SW_HOOK_EN > 0
void App_TaskSwHook(void)
{
}
#endif
/*
*********************************************************************************************************
* OS_TCBInit() HOOK (APPLICATION)
*
* Description : This function is called by OSTCBInitHook(), which is called by OS_TCBInit() after setting
* up most of the TCB.
*
* Argument : ptcb is a pointer to the TCB of the task being created.
*
* Note : (1) Interrupts may or may not be ENABLED during this call.
*********************************************************************************************************
*/
#if OS_VERSION >= 204
void App_TCBInitHook(OS_TCB* ptcb)
{
(void) ptcb;
}
#endif
#endif
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