说明：在一些Vitis生成的中断示例中，经常会有“xintc”作为中断中断控制器，导致无法直接编译。本文以xuartlite为示例介绍修改过程。

文章目录

• 头文件 Include File
• 常量定义 Constant Definitions
• 变量定义 Variable Definitions
• 中断配置函数
• • 原中断配置函数
  • 修改后的中断配置函数
• 总结

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头文件 Include File

将

#include "xintc.h"

修改为

#include "xscugic.h"

---

常量定义 Constant Definitions

将

#define INTC_DEVICE_ID XPAR_INTC_0_DEVICE_ID #define UARTLITE_INT_IRQ_ID XPAR_INTC_0_UARTLITE_0_VEC_ID

修改为

#define INTC_DEVICE_ID XPAR_SCUGIC_0_DEVICE_ID #define UARTLITE_INT_IRQ_ID XPAR_FABRIC_AXI_UARTLITE_485_1_INTERRUPT_INTR //注意AXI_UARTLITE_485_1为我用的IP核的名称

变量定义 Variable Definitions

将

XIntc InterruptController; /* The instance of the Interrupt Controller */

修改为

XScuGic InterruptController; /* The instance of the Interrupt Controller */

中断配置函数

原中断配置函数

代码如下：

int SetupInterruptSystem(XUartLite *UartLitePtr) {int Status;/** Initialize the interrupt controller driver so that it is ready to* use.*/Status = XIntc_Initialize(&InterruptController, INTC_DEVICE_ID);if (Status != XST_SUCCESS) {return XST_FAILURE;}/** Connect a device driver handler that will be called when an interrupt* for the device occurs, the device driver handler performs the* specific interrupt processing for the device.*/Status = XIntc_Connect(&InterruptController, UARTLITE_INT_IRQ_ID,(XInterruptHandler)XUartLite_InterruptHandler,(void *)UartLitePtr);if (Status != XST_SUCCESS) {return XST_FAILURE;}/** Start the interrupt controller such that interrupts are enabled for* all devices that cause interrupts, specific real mode so that* the UartLite can cause interrupts through the interrupt controller.*/Status = XIntc_Start(&InterruptController, XIN_REAL_MODE);if (Status != XST_SUCCESS) {return XST_FAILURE;}/** Enable the interrupt for the UartLite device.*/XIntc_Enable(&InterruptController, UARTLITE_INT_IRQ_ID);/** Initialize the exception table.*/Xil_ExceptionInit();/** Register the interrupt controller handler with the exception table.*/Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,(Xil_ExceptionHandler)XIntc_InterruptHandler,&InterruptController);/** Enable exceptions.*/Xil_ExceptionEnable();return XST_SUCCESS; }

修改后的中断配置函数

代码如下：

int SetupInterruptSystem(XUartLite *UartLitePtr) {int Status;XScuGic_Config *IntcConfig;/** Initialize the interrupt controller driver so that it is ready to* use.*/IntcConfig = XScuGic_LookupConfig(INTC_DEVICE_ID);if (NULL == IntcConfig) {return XST_FAILURE;}Status = XScuGic_CfgInitialize(&InterruptController, IntcConfig,IntcConfig->CpuBaseAddress);if (Status != XST_SUCCESS) {return XST_FAILURE;}XScuGic_SetPriorityTriggerType(&InterruptController, UARTLITE_INT_IRQ_ID, 0xA0, 0x3);/** Connect a device driver handler that will be called when an interrupt* for the device occurs, the device driver handler performs the* specific interrupt processing for the device.*/Status = XScuGic_Connect(&InterruptController, UARTLITE_INT_IRQ_ID,(Xil_InterruptHandler)XUartLite_InterruptHandler,(void *)UartLitePtr);if (Status != XST_SUCCESS) {return XST_FAILURE;}/** Enable the interrupt for the UartLite device.*/XScuGic_Enable(&InterruptController, UARTLITE_INT_IRQ_ID);/** Initialize the exception table.*/Xil_ExceptionInit();/** Register the interrupt controller handler with the exception table.*/Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,(Xil_ExceptionHandler)XScuGic_InterruptHandler,&InterruptController);/** Enable exceptions.*/Xil_ExceptionEnable();return XST_SUCCESS; }

经过以上修改，编译正常，测试完毕。

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总结

xIntc其实就是代替了XScuGic，只要换成对应名称的常量、变量等一般就可以解决这个问题。

总结

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