STM32 基本定时器问题

gavinzz01 · 发表于 2014-7-24 09:57:00

使用STM32F103ZET6芯片时，用MDK仿真，TIM6定时器中断进不去，将TIM6换成TIM2，3都没问题很是费解。启动文件选的是带hd的那个，包含了TIM6中断，代码如下，：
配置函数：

[mw_shl_code=c,true]TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE); TIM_DeInit(TIM6); TIM_TimeBaseStructure.TIM_Period=10000-1; TIM_TimeBaseStructure.TIM_Prescaler= (7200 – 1); TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1； TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; TIM_TimeBaseInit(TIM6, &TIM_TimeBaseStructure); TIM_ClearFlag(TIM6, TIM_FLAG_Update); TIM_ITConfig(TIM6,TIM_IT_Update,ENABLE); TIM_Cmd(TIM6, ENABLE);[/mw_shl_code]

NVIC配置：

[mw_shl_code=c,true]NVIC_InitTypeDef NVIC_InitStructure; NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); //配置NVIC中断优先级编组 NVIC_InitStructure.NVIC_IRQChannel = TIM6_IRQn; //TIM6中断 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //抢占优先级0级 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //从优先级0级 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能 NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器[/mw_shl_code]

中断函数：

[mw_shl_code=c,true] void TIM6_IRQHandler(void) { if(TIM_GetITStatus(TIM6, TIM_IT_Update) != RESET) //检查指定的TIM中断发生与否:TIM 中断源 { TIM_ClearITPendingBit(TIM6, TIM_IT_Update ); //清除TIMx的中断待处理位:TIM 中断源 aa = 1-aa; //用于滚动显示字符 } } [/mw_shl_code]

求助大神~