1.中断向量入口参数
typedef enum
{
VECTOR_RTC =41u, /* RTC */
VECTOR_PORT2 , /* Port 2 */
VECTOR_TIMER2_A1 , /* Timer0_A5 CC1-4, TA */
VECTOR_TIMER2_A0 , /* Timer0_A5 CC0 */
VECTOR_USCI_B1 , /* USCI B1 Receive/Transmit */
VECTOR_USCI_A1 , /* USCI A1 Receive/Transmit */
VECTOR_PORT1 , /* Port 1 */
VECTOR_TIMER1_A1 , /* Timer1_A3 CC1-2, TA1 */
VECTOR_TIMER1_A0 , /* Timer1_A3 CC0 */
VECTOR_DMA , /* DMA */
VECTOR_USB_UBM , /* USB Timer / cable event / USB reset */
VECTOR_TIMER0_A1 , /* Timer0_A5 CC1-4, TA */
VECTOR_TIMER0_A0 , /* Timer0_A5 CC0 */
VECTOR_ADC12 , /* ADC */
VECTOR_USCI_B0 , /* USCI B0 Receive/Transmit */
VECTOR_USCI_A0 , /* USCI A0 Receive/Transmit */
VECTOR_WDT , /* Watchdog Timer */
VECTOR_TIMER0_B1 , /* Timer0_B7 CC1-6, TB */
VECTOR_TIMER0_B0 , /* Timer0_B7 CC0 */
VECTOR_COMP_B , /* Comparator B */
VECTOR_UNMI , /* User Non-maskable */
VECTOR_SYSNMI , /* System Non-maskable */
VECTOR_RESET , /* Reset [Highest Priority] */
/************************为使用方便,下面对部分常用功能进行定义**************************************************/
//IO口
VECTOR_P1 = VECTOR_PORT1,
VECTOR_P2 = VECTOR_PORT2,
//SPI
VECTOR_SPI0 = VECTOR_USCI_A0,
VECTOR_SPI1 = VECTOR_USCI_A1,
VECTOR_SPI2 = VECTOR_USCI_B0,
VECTOR_SPI3 = VECTOR_USCI_B1,
//I2C
VECTOR_I2C0 = VECTOR_USCI_B0,
VECTOR_I2C1 = VECTOR_USCI_B1,
//UART
VECTOR_UART0 = VECTOR_USCI_A0,
VECTOR_UART1 = VECTOR_USCI_A1,
//TIMER,注意定时器有两个中断向量,CCR0单独占用一个中断向量,其他中断源共同使用一个中断向量
VECTOR_TIMER_A0 = VECTOR_TIMER0_A1,
VECTOR_TIMER_A0_CCR0 = VECTOR_TIMER0_A0,
VECTOR_TIMER_A1 = VECTOR_TIMER1_A1,
VECTOR_TIMER_A1_CCR0 = VECTOR_TIMER1_A0,
VECTOR_TIMER_A2 = VECTOR_TIMER2_A1,
VECTOR_TIMER_A2_CCR0 = VECTOR_TIMER2_A0,
VECTOR_TIMER_B0 = VECTOR_TIMER0_B1,
VECTOR_TIMER_B0_CCR0 = VECTOR_TIMER0_B0,
}VECTORn; //中断向量
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2.设置中断向量地址
/*******************************************************************************
* 函数名称:Set_Vector_Handler(VECTORn vector,__interrupt void pfunc_handler(void))
* 功能说明:设置中断向量地址
* 参数说明:
VECTORn vector :中断向量(枚举变量,见.h文件)
__interrupt void pfunc_handler(void) : 中断服务函数
* 函数返回:无
********************************************************************************/
void Set_Vector_Handler(VECTORn vector, __interrupt void pfunc_handler(void))
{
if(SYSX->RIVECT == DISABLE) //如果没有设置中断向量表到RAM,则设置
{
Set_VectorTable_To_RAM(); //设置中断向量表到RAM
}
//此处若有警告可忽略
__VECTOR_RAM[vector] = (ISR_TYPE)pfunc_handler; //设置该中断向量地址
}
3.使用实例
3.1 GPIO实例
Set_Vector_Handler(VECTOR_PORT1,GPIO_IRQ_Handler);
//设置PPORT1中断服务函数为GPIO_IRQ_Handler,需要先定义中断服务函数,另外最好先设置中断向量,再开启中断
3.2 定时器实例
Set_Vector_Handler(VECTOR_TIMER0_B0,TIMER_TB0_IRQ_Handler); //设置中断向量,最好先设置中断向量,在开启中断
__interrupt void TIMER_TB0_IRQ_Handler()
{
LED_Turn(LED1); //指示灯闪烁
}
3.3 ADC中断实例
ADC_Init(ADC_CH2,ADC_VREF_3_3V,ADC_10bit); //初始化通道,P6.2
Set_Vector_Handler(VECTOR_ADC12,ADC_IRQ_Handler);
ADC_ITConfig (ADC_CH2,ENABLE);
ADC_StartConv();
OLED_PrintfAt(FONT_ASCII_6X8,0,0,"ADValue:\n%f V",ad); //在指定位置打印
__interrupt void ADC_IRQ_Handler()
{
if(ADC_GetITStatus(ADC_CH2) == TRUE)
{
ad = ADC_ReadChanelValue (ADC_CH2)*3.3/1023; //读取后会自动清除标志位
ADC_ClearITPendingBit(ADC_CH2);
}
}
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