对于AXI Interconnect的输出引脚，双击进行配置

 

 

 

SDK中的配置，关闭CPU 和 DDR中间的缓存

Xil_DCacheFlushRange(0x01000000 & 0xffffffc0,640*480);

gic中断设置   gic_intr.c

 1 #include "gic_intr.h"
 2 
 3 int Gic_init(XScuGic *GicPtr,XScuGic_Config *GicCfgPtr,u16 DeviceId)
 4 {
 5     int status;
 6     Xil_ExceptionInit();
 7     GicCfgPtr = XScuGic_LookupConfig(DeviceId);
 8     status = XScuGic_CfgInitialize(GicPtr,GicCfgPtr,GicCfgPtr->CpuBaseAddress);
 9     if(status != XST_SUCCESS)
10     {
11         return status;
12     }
13     Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,(Xil_ExceptionHandler)XScuGic_InterruptHandler,GicPtr);
14 
15     Xil_ExceptionEnable();
16     return XST_SUCCESS;
17 }
18 
19 void IntcTypeSetup(XScuGic *InstancePtr, int intId, int intType)
20 {
21     int mask;
22 
23     intType &= INT_TYPE_MASK;
24     mask = XScuGic_DistReadReg(InstancePtr, INT_CFG0_OFFSET + (intId/16)*4);
25     mask &= ~(INT_TYPE_MASK << (intId%16)*2);
26     mask |= intType << ((intId%16)*2);
27     XScuGic_DistWriteReg(InstancePtr, INT_CFG0_OFFSET + (intId/16)*4, mask);
28 }

 gic_intr.h

 1 #ifndef _GIC_INTR_H_
 2 #define _GIC_INTR_H_
 3 
 4 #include <stdio.h>
 5 #include "xil_printf.h"
 6 #include "xscugic.h"
 7 #include "xparameters.h"
 8 
 9 #define GIC_DEVICE_ID        XPAR_PS7_SCUGIC_0_DEVICE_ID
10 
11 XScuGic GicPtr;
12 XScuGic_Config *GicCfgPtr;
13 
14 #define INT_TYPE_RISING_EDGE    0x03
15 #define INT_TYPE_HIGHLEVEL      0x01
16 #define INT_TYPE_MASK           0x03
17 
18 #define INT_CFG0_OFFSET 0x00000C00
19 
20 int Gic_init(XScuGic *GicPtr,XScuGic_Config *GicCfgPtr,u16 DeviceId);
21 void IntcTypeSetup(XScuGic *InstancePtr, int intId, int intType);
22 
23 #endif /* _GIC_INTR_H_ */

interrupt.c

 1 #include "interrupt.h"
 2 
 3 
 4 int initIntr()
 5 {
 6     int status;
 7 //全局中断初始化
 8     status = Gic_init(&GicPtr,GicCfgPtr,GIC_DEVICE_ID);
 9 //pl中断
10     status = XScuGic_Connect(&GicPtr,F2P_INTR0_ID,(Xil_ExceptionHandler)f2pIntr0Handler,&GicPtr);
11     IntcTypeSetup(&GicPtr, F2P_INTR0_ID, INT_TYPE_RISING_EDGE);
12     XScuGic_Enable(&GicPtr, F2P_INTR0_ID);
13 
14     return status;
15 }

interrupt.h

 1 #ifndef _INTERRUPT_H_
 2 #define _INTERRUPT_H_
 3 
 4 
 5 #include <stdio.h>
 6 #include "xscugic.h"
 7 #include "xparameters.h"
 8 #include "xil_mmu.h"
 9 #include "xil_types.h"
10 
11 #include "gic_intr.h"
12 #include "pl_intr.h"
13 
14 int initIntr();

pl_intr.c

1 #include "pl_intr.h"
2 #include "xil_printf.h"
3 
4 void f2pIntr0Handler(void * callbackref)
5 {
6     static i = 0 ;
7     printf("i = %d \n\r",i++);
8 }

pl_intr.h

 1 #ifndef _PL_INTR_H_
 2 #define _PL_INTR_H_
 3 
 4 #include "xil_printf.h"
 5 #include <stdio.h>
 6 
 7 #define F2P_INTR0_ID 61
 8 
 9 #define CPU_AXI_LITE_W(BaseAddress, RegOffset, Data)     Xil_Out32((BaseAddress) + (RegOffset), (u32)(Data))
10 #define CPU_AXI_LITE_R(BaseAddress, RegOffset)             Xil_In32((BaseAddress) + (RegOffset))
11 
12 void f2pIntr0Handler(void * callbackref);//行中断
13 
14 
15 #endif /* _PL_INTR_H_ */

注意这里使用自定义的axi_dma.v导入的数据顺序和使用VDMA导入的数据存在区别