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標題:
zynq 7000 PS接收PL中斷問題
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作者:
寶貝戰神
時間:
2020-3-22 16:57
標題:
zynq 7000 PS接收PL中斷問題
A、本人最近在進行ZYNQ7045的調測試,其中涉及到PS接收PL端的中斷問題。
原理:PL設置定時器,以20ms為周期進行中斷觸發,PS在收到中斷之后,立馬響應,做后續的程序判斷。
1、PL的20ms中斷是上升沿邊沿觸發方式,中斷號是61
2、調試過程1,不設置中斷觸發方式時,一直進入中斷出不來,不進入主函數了。
3、調試過程2,設置中斷觸發方式為邊沿觸發,不進中斷,一直在主函數中。
B、代碼如下:
test_interrupt.c
#include "xscugic.h"
#include "test_interrupt.h"
int flag_1ms,flag_20ms;
void Device1553BDriverHandler(void *CallbackRef)
{
xil_printf("進入rt1553B-20200320\r\n");
rtIsr();
}
void Device20msDriverHandler(void *CallbackRef,XScuGic *IntcInstancePtr,int intId)
{
xil_printf("進入20ms中斷-%d次\r\n",flag_20ms);
flag_20ms ++;
xil_printf("進入20ms中斷-20200320\r\n");
IntcTypeClear(IntcInstancePtr,INTC_DEVICE_20MS_INT_ID);
//Xil_Out32(ICDICPR,0xffffffff);
//Xil_Out32(ICDICPR+4,0xffffffff);
//Xil_Out32(ICDICPR+8,0xffffffff);
xil_printf("清除20ms中斷-20200320\r\n");
}
//GIC初始化
int GIC_Initial(XScuGic *IntcInstancePtr,u32 INT_DEVICE_ID)
{
int gic_status = 0;
XScuGic_Config *GICConfigPtr;
//根據INT_DEVICE_ID 中斷設備號,完成中斷GIC設備的配置
GICConfigPtr = XScuGic_LookupConfig(INT_DEVICE_ID);
gic_status = XScuGic_CfgInitialize(IntcInstancePtr,GICConfigPtr,GICConfigPtr->CpuBaseAddress);
if(gic_status == XST_SUCCESS)
{
xil_printf("GIC配置成功!!!20200320\r\n");
}
gic_status = XScuGic_SelfTest(IntcInstancePtr);
if(gic_status == XST_SUCCESS)
{
xil_printf("定時器自測試成功!!!\r\n");
}
return gic_status;
}
//全局中斷設置
void Setup_Interrupt_Exception(XScuGic *IntcInstancePtr)
{
xil_printf("全局中斷設置!!!20200320\r\n");
Xil_ExceptionInit();
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_IRQ_INT,
(Xil_ExceptionHandler)XScuGic_InterruptHandler,
IntcInstancePtr);
Xil_ExceptionEnable(); //必須使能異常,之前沒有使能導致程序錯誤!!!
}
//20ms中斷設置和掛接
void Setup_20ms_Interrupt(XScuGic *IntcInstancePtr,u16 Intr_20ms_Id)
{
int sta;
u8 Priority,Trigger;
//設置上升沿中斷類型
XScuGic_GetPriorityTriggerType(IntcInstancePtr, Intr_20ms_Id, &Priority, &Trigger);
XScuGic_SetPriorityTriggerType(IntcInstancePtr, Intr_20ms_Id, Priority, 0x3);//上升沿
//掛接中斷
sta = XScuGic_Connect(IntcInstancePtr, Intr_20ms_Id, (Xil_ExceptionHandler)Device20msDriverHandler, (void *)1);//
if (sta != XST_SUCCESS)
{
return XST_FAILURE;
}else
{
xil_printf("完成20ms 61號中斷掛接 \r\n");
}
//中斷使能
XScuGic_Enable(IntcInstancePtr, Intr_20ms_Id);
xil_printf("完成20ms中斷使能 \r\n");
}
復制代碼
主函數main.c
#include <string.h>
#include "NetWork.h"
#include "GlobalVars.h"
#include "gtypes.h"
#include "test_interrupt.h"
extern BOOL f_bSyn20ms;
extern BOOL g_bStartTimer;
extern unsigned int g_nTimerCnt;
#define INTC_DEVICE_ID XPAR_SCUGIC_SINGLE_DEVICE_ID //SCU的GIC設備號
XScuGic IntcInstancePtr; ///?????
int main(void)
{
char ID;
ID = Get_CPU_ID();
xil_printf("當前CPU的ID是 %d \r\n",ID);
sleep(1);
#if 1
//1、定義中斷結構體 之前有取地址符
GIC_Initial(&IntcInstancePtr,INTC_DEVICE_ID);
//2、調用中斷函數,
Setup_Interrupt_Exception(&IntcInstancePtr);
//4、中斷使能
Setup_20ms_Interrupt(&IntcInstancePtr,INTC_DEVICE_20MS_INT_ID);
#endif
xil_printf("hello world5464654!!! \r\n");
while(1)
{
xil_printf("hello world!!! \r\n");
sleep(1);
}
return 0;
}
復制代碼
C、請各位看看是哪里設置的不對?
D、本人疑惑:
如果中斷掛接不正常,那么不應該進入中斷
本人一開始重點排查沒有清楚中斷,自己直接操作的ICDICPR該寄存器,不知道操作是否正確,屏蔽也沒有作用。
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