STM32

中断太多容易卡在中断中

2019-07-20 13:36发布

站内问答 / STM32/STM8
8132 3 1576
中断太多，但又不能删，用的是轮询判断哪个中断触发，但容易卡死在中断中，怎么处理[mw_shl_code=c,true]
void WiegandInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_AHB1PeriphClockCmd(WIEGAND1_RCC_PORT | WIEGAND2_RCC_PORT | WIEGAND4_RCC_PORT,ENABLE);
#if DEBUG
RCC_AHB1PeriphClockCmd( WIEGAND3_RCC_PORT );
#endif
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);//RCC_APB2Periph_AFIO

GPIO_InitStructure.GPIO_Pin = WIEGAND1_DATA0_GPIO | WIEGAND1_DATA1_GPIO;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;        //????
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; //éÏà-
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(WIEGAND1_PORT, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = WIEGAND2_DATA0_GPIO | WIEGAND2_DATA1_GPIO;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;        //????
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; //éÏà-
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(WIEGAND2_PORT, &GPIO_InitStructure);
#if DEBUG
GPIO_InitStructure.GPIO_Pin = WIEGAND3_DATA0_GPIO | WIEGAND3_DATA1_GPIO;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;       
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; //éÏà-
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(WIEGAND3_PORT, &GPIO_InitStructure);
#endif       
GPIO_InitStructure.GPIO_Pin = WIEGAND4_DATA0_GPIO | WIEGAND4_DATA1_GPIO;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;        //????
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; //éÏà-
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(WIEGAND4_PORT, &GPIO_InitStructure);

//Relay_PIN_Init
GPIO_InitStructure.GPIO_Pin = Relay1_GPIO;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(Relay1_PORT, &GPIO_InitStructure);

//WIEGAND1
SYSCFG_EXTILineConfig(WIEGAND1_PortSource,EXTI_PinSource6);
EXTI_InitStructure.EXTI_Line        = EXTI_Line6;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       

SYSCFG_EXTILineConfig(WIEGAND1_PortSource,EXTI_PinSource7);
//GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource1);
EXTI_InitStructure.EXTI_Line        = EXTI_Line7;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       
//ÖD¶ÏóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;        //ê1Äü°′¼üËùÔúμÄía2¿ÖD¶Ïí¨μà
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;        //ÇàÕ¼óÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;        //×ÖóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;        //ê1Äüía2¿ÖD¶Ï
NVIC_Init(&NVIC_InitStructure);


//WIEGAND2
SYSCFG_EXTILineConfig(WIEGAND2_PortSource,EXTI_PinSource11);
EXTI_InitStructure.EXTI_Line        = EXTI_Line11;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       

SYSCFG_EXTILineConfig(WIEGAND2_PortSource,EXTI_PinSource12);
EXTI_InitStructure.EXTI_Line        = EXTI_Line12;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       
//ÖD¶ÏóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;        //ê1Äü°′¼üËùÔúμÄía2¿ÖD¶Ïí¨μà
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;        //ÇàÕ¼óÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;        //×ÖóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;        //ê1Äüía2¿ÖD¶Ï
NVIC_Init(&NVIC_InitStructure);

#if DEBUG        //WIEGAND3
SYSCFG_EXTILineConfig(WIEGAND3_PortSource,EXTI_PinSource8);
EXTI_InitStructure.EXTI_Line        = EXTI_Line8;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       

SYSCFG_EXTILineConfig(WIEGAND3_PortSource,EXTI_PinSource14);
//GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource1);
EXTI_InitStructure.EXTI_Line        = EXTI_Line14;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       
//ÖD¶ÏóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn ;        //ê1Äü°′¼üËùÔúμÄía2¿ÖD¶Ïí¨μà
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;        //ÇàÕ¼óÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;        //×ÖóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;        //ê1Äüía2¿ÖD¶Ï
NVIC_Init(&NVIC_InitStructure);

NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;        //ê1Äü°′¼üËùÔúμÄía2¿ÖD¶Ïí¨μà
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;        //ÇàÕ¼óÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;        //×ÖóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;        //ê1Äüía2¿ÖD¶Ï
NVIC_Init(&NVIC_InitStructure);
#endif

//WIEGAND4
SYSCFG_EXTILineConfig(WIEGAND4_PortSource,EXTI_PinSource4);
EXTI_InitStructure.EXTI_Line        = EXTI_Line4;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       

SYSCFG_EXTILineConfig(WIEGAND4_PortSource,EXTI_PinSource5);
//GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource1);
EXTI_InitStructure.EXTI_Line        = EXTI_Line5;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;       
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;        //ϽμÑØ′￥·￠
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);       
//ÖD¶ÏóÅÏ輶
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQn;//ía2¿ÖD¶Ï0
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;//ÇàÕ¼óÅÏ輶0
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//×óóÅÏ輶2
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//ê1Äüía2¿ÖD¶Ïí¨μà
NVIC_Init(&NVIC_InitStructure);//ÅäÖÃ

NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;//ía2¿ÖD¶Ï0
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;//ÇàÕ¼óÅÏ輶0
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//×óóÅÏ輶2
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//ê1Äüía2¿ÖD¶Ïí¨μà
NVIC_Init(&NVIC_InitStructure);//ÅäÖÃ

}


//Read_WG

/***********************************************************
* oˉêyÃû:EXTI15_10_IRQHandler
* 1| ÄüATAêy¾YÏßÖD¶Ï·tÎñoˉêy
* êä èë:ÎT
* êä 3ö:ÎT
**********************************************************/
void EXTI4_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line4) != RESET && flag_wiegand[3]==0) //WIEGAND4_A
{        //Data0        -> »ñμÃò»Î»0

if(u_DataBits[3] == 0)
{
u_EvenCheck[3]=0; //żD￡Ñéλ
}

else if(u_DataBits[3] == (WG_DATA_BITS-1))
{
u_OddCheck[3]=0; //ÆæD￡Ñéλ
}
else
{       
//printf("0");       
WG_Data[3]<<=1;
}
u_DataBits[3]++;
EXTI_ClearITPendingBit(EXTI_Line4);
}
if(u_DataBits[3] >= WG_DATA_BITS)
{
flag_wiegand[3]=1;
return;
}
}
void EXTI9_5_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line5) != RESET && flag_wiegand[3]==0)        //WIEGAND4_B
{        //Data1        -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;1

if(u_DataBits[3] == 0)
{
u_EvenCheck[3]=1; //&#197;&#188;D￡&#209;é&#206;&#187;
}

else if(u_DataBits[3] == (WG_DATA_BITS-1))
{
u_OddCheck[3]=1; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{
//printf("1");
WG_Data[3]<<=1;
WG_Data[3]|=1;       
}
u_DataBits[3]++;
EXTI_ClearITPendingBit(EXTI_Line5);
}
else if(EXTI_GetITStatus(EXTI_Line6) != RESET && flag_wiegand[0]==0) //WIEGAND1_A
{        //Data0        -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;0

if(u_DataBits[0] == 0)
{
u_EvenCheck[0]=0; //&#197;&#188;D￡&#209;é&#206;&#187;
}

else if(u_DataBits[0] == (WG_DATA_BITS-1))
{
u_OddCheck[0]=0; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{
//printf("0");       
WG_Data[0]<<=1;
}
u_DataBits[0]++;
EXTI_ClearITPendingBit(EXTI_Line6);
}
else if(EXTI_GetITStatus(EXTI_Line7) != RESET && flag_wiegand[0]==0) //WIEGAND1_B
{        //Data1 -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;1

if(u_DataBits[0] == 0)
{
u_EvenCheck[0]=1; //&#197;&#188;D￡&#209;é&#206;&#187;
}
else if(u_DataBits[0] == (WG_DATA_BITS-1))
{
u_OddCheck[0]=1; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{
//printf("1");
WG_Data[0]<<=1;
WG_Data[0]|=1;       
}
u_DataBits[0]++;
EXTI_ClearITPendingBit(EXTI_Line7);       
}
else if(EXTI_GetITStatus(EXTI_Line8) != RESET && flag_wiegand[2]==0) //WIEGAND3_A
{        //Data0 -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;0

if(u_DataBits[2] == 0)
{
WG_Data[2]=0x0;
u_EvenCheck[2]=0; //&#197;&#188;D￡&#209;é&#206;&#187;
}
else if(u_DataBits[2] == (WG_DATA_BITS-1))
{
u_OddCheck[2]=0; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{
//printf("0");
WG_Data[2]<<=1;       
}
//[u_DataBits] = 1;
u_DataBits[2]++;
EXTI_ClearITPendingBit(EXTI_Line8);       
}

//éè&#214;&#195;±ê&#214;&#190;&#206;&#187;
if(u_DataBits[0] >= WG_DATA_BITS)
{
flag_wiegand[0]=1;
return ;
}
else if(u_DataBits[2] >= WG_DATA_BITS)
{
flag_wiegand[2]=1;
return ;
}
else if(u_DataBits[3] >= WG_DATA_BITS)
{
flag_wiegand[3]=1;
return ;
}
}

void EXTI15_10_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line11) != RESET && flag_wiegand[1]==0) //WIEGAND2_A
{        //Data0        -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;0

if(u_DataBits[1] == 0)
{
WG_Data[1]=0x0;
u_EvenCheck[1]=0; //&#197;&#188;D￡&#209;é&#206;&#187;
}

else if(u_DataBits[1] == (WG_DATA_BITS-1))
{
u_OddCheck[1]=0; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{       
//printf("0");       
WG_Data[1]<<=1;
}
u_DataBits[1]++;
EXTI_ClearITPendingBit(EXTI_Line11);
}
else if(EXTI_GetITStatus(EXTI_Line12) != RESET && flag_wiegand[1]==0) //WIEGAND2_B
{        //Data1 -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;1

if(u_DataBits[1] == 0)
{
WG_Data[1]=0x0;
u_EvenCheck[1]=1; //&#197;&#188;D￡&#209;é&#206;&#187;
}
else if(u_DataBits[1] == (WG_DATA_BITS-1))
{
u_OddCheck[1]=1; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{
//printf("1");
WG_Data[1]<<=1;
WG_Data[1]|=1;       
}
//[u_DataBits] = 1;
u_DataBits[1]++;
EXTI_ClearITPendingBit(EXTI_Line12);       
}
else if(EXTI_GetITStatus(EXTI_Line14) != RESET && flag_wiegand[2]==0 )//WIEGAND3_B
{        //Data1 -> &#187;&#241;μ&#195;ò&#187;&#206;&#187;1

if(u_DataBits[2] == 0)
{
WG_Data[2]=0x0;
u_EvenCheck[2]=1; //&#197;&#188;D￡&#209;é&#206;&#187;
}
else if(u_DataBits[2] == (WG_DATA_BITS-1))
{
u_OddCheck[2]=1; //&#198;&#230;D￡&#209;é&#206;&#187;
}
else
{
//printf("1");
WG_Data[2]<<=1;
WG_Data[2]|=1;       
}
//[u_DataBits] = 1;
u_DataBits[2]++;
EXTI_ClearITPendingBit(EXTI_Line14);       
}
if(u_DataBits[1] >= WG_DATA_BITS)
{
flag_wiegand[1]=1;
return ;
}
else if(u_DataBits[2] >= WG_DATA_BITS)
{
flag_wiegand[2]=1;
return ;
}
}
[/mw_shl_code]
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3条回答
Eternal单人行
2019-07-21 00:31
 精彩回答 2  元偷偷看……0人看过

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