请教搞xilinx的高手，关于microblaze的io中断
XIntc gInterruptControllerInst;XGpio gGpioFieldirqInst;
void Field_IRQ_interrupt(void)
{
XGpio_Initialize(&gGpioFieldirqInst, XPAR_FIELD_INT_DEVICE_ID);
XGpio_InterruptDisable(&gGpioFieldirqInst,0xf);
XGpio_InterruptClear(&gGpioFieldirqInst,0xffff);
XGpio_InterruptEnable(&gGpioFieldirqInst,0xf);
}
int main()
{
XGpio_Initialize(&gGpioFieldirqInst, XPAR_FIELD_INT_DEVICE_ID);
XIntc_Connect(&gInterruptControllerInst,XPAR_INTC_0_GPIO_0_VEC_ID,(XInterruptHandler)Field_IRQ_interrupt,&gGpioFieldirqInst);
XIntc_MasterEnable(XPAR_INTC_0_GPIO_0_VEC_ID);
XIntc_Start(&gInterruptControllerInst,XIN_REAL_MODE);
XIntc_Enable(&gInterruptControllerInst,XPAR_INTC_0_GPIO_0_VEC_ID);
microblaze_enable_interrupts();
XGpio_InterruptEnable(&gGpioFieldirqInst,0xf);
XGpio_InterruptGlobalEnable(&gGpioFieldirqInst);
while(1);
}
这段代码到XIntc_Connect(&gInterruptControllerInst,XPAR_INTC_0_GPIO_0_VEC_ID,(XInterruptHandler)Field_IRQ_interrupt,&gGpioFieldirqInst);
注册失败，怎么回事，都调了好几天，饭也吃不好，觉也睡不香的，好痛苦
到底能是哪里出问题了或者谁有好使的代码呢 本帖最后由 pocker5200 于 2012-10-12 10:51 编辑
以前项目留下的一部分代码，定时器中断和GPIO中断。
mhs文件部分是IP核的配置，后面是软件部分。
注释不多，主要看个流程，
整理了一下发上来，希望能有帮助。
编辑备注：MB核采用PLB4.6总线
// *.mhs文件部分
BEGIN xps_intc
PARAMETER INSTANCE = xps_intc_0
PARAMETER HW_VER = 2.01.a
PARAMETER C_BASEADDR = 0x81800000
PARAMETER C_HIGHADDR = 0x8180ffff
BUS_INTERFACE SPLB = mb_plb
PORT Intr = DIP_Switches_4Bit_IP2INTC_Irpt & nRF24l01_IRQ_IP2INTC_Irpt & xps_timer_0_Interrupt
PORT Irq = microblaze_0_Interrupt
END
BEGIN xps_gpio
PARAMETER INSTANCE = DIP_Switches_4Bit
PARAMETER C_ALL_INPUTS = 1
PARAMETER C_GPIO_WIDTH = 2
PARAMETER C_INTERRUPT_PRESENT = 1
PARAMETER C_IS_DUAL = 0
PARAMETER HW_VER = 2.00.a
PARAMETER C_BASEADDR = 0x814e0000
PARAMETER C_HIGHADDR = 0x814effff
BUS_INTERFACE SPLB = mb_plb
PORT IP2INTC_Irpt = DIP_Switches_4Bit_IP2INTC_Irpt
PORT GPIO_IO_I = fpga_0_DIP_Switches_4Bit_GPIO_IO_I_pin
END
BEGIN xps_timer
PARAMETER INSTANCE = xps_timer_0
PARAMETER C_COUNT_WIDTH = 32
PARAMETER C_ONE_TIMER_ONLY = 1
PARAMETER HW_VER = 1.02.a
PARAMETER C_BASEADDR = 0x83c00000
PARAMETER C_HIGHADDR = 0x83c0ffff
BUS_INTERFACE SPLB = mb_plb
PORT Interrupt = xps_timer_0_Interrupt
END
///////////////////////////////////////////////////////////////////////////
// main.c
#include <stdio.h>
#include "xparameters.h"
#include "xintc.h"
#include "xbasic_types.h"
#include "xgpio.h"
#include "xbasic_types.h"
#include "xgpio.h"
#include "xtmrctr.h"
static int timer_count = 1;
static int dip_count = 1;
static XIntc xps_intc_0;
static XTmrCtr xps_timer_0;
static XGpio xps_dip_4bit_switch;
//********************** 1. Device initialization and configuration *************************
//xil_printf("Setting up peripherals...\r\n");
//Initialize and configuring the timer
XTmrCtr_Initialize(&xps_timer_0, XPAR_XPS_TIMER_0_DEVICE_ID);
XTmrCtr_SelfTest(&xps_timer_0, 0);
XTmrCtr_SetOptions(&xps_timer_0, 0 , XTC_INT_MODE_OPTION | \
XTC_DOWN_COUNT_OPTION | XTC_AUTO_RELOAD_OPTION);
XTmrCtr_SetHandler(&xps_timer_0, (XTmrCtr_Handler)timer_init_handler, NULL);
//Initialize and configure the gpios
XGpio_Initialize(&xps_dip_4bit_switch, XPAR_DIP_SWITCHES_4BIT_DEVICE_ID);
XGpio_SetDataDirection(&xps_dip_4bit_switch, 1, 0xFFFF);
XGpio_Initialize(&xps_led, XPAR_LEDS_4BIT_DEVICE_ID);
XGpio_SetDataDirection(&xps_led, 1, 0x0);
XGpio_InterruptEnable(&xps_dip_4bit_switch, 0xFFFF);
XGpio_InterruptGlobalEnable(&xps_dip_4bit_switch);
//*************** 2. Interrupt controller initialization and configuration ******************
//xil_printf("Setting up interrupt controller...\r\n");
//Attach the ISRs to the interrupt controller driver.
//NOTE: The timer is weird. You have to attach "XTmrCtr_InterruptHandler," which is nested
//deep within the timer driver. It in turn calls the callback you provide during the
//configuration above.
XIntc_Initialize(&xps_intc_0, XPAR_XPS_INTC_0_DEVICE_ID);
XIntc_Connect(&xps_intc_0,
XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR,
(XInterruptHandler)XTmrCtr_InterruptHandler,
&xps_timer_0);
XIntc_Connect(&xps_intc_0,
XPAR_XPS_INTC_0_DIP_SWITCHES_4BIT_IP2INTC_IRPT_INTR,
(XInterruptHandler)gpio_init_handler,
&xps_dip_4bit_switch);
XIntc_Start(&xps_intc_0, XIN_REAL_MODE);
XIntc_Enable(&xps_intc_0, XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR);
XIntc_Enable(&xps_intc_0, XPAR_XPS_INTC_0_DIP_SWITCHES_4BIT_IP2INTC_IRPT_INTR);
//Set the timer to expire every 6 seconds
XTmrCtr_SetResetValue(&xps_timer_0, (Xuint8)0, RESET_VALUE);
XTmrCtr_Start(&xps_timer_0, (Xuint8)0);
microblaze_enable_interrupts();
//************************** Interrupts init complete *******************************
//interrupt handler
XTmrCtr_Handler timer_init_handler(void * baseaddr_p) {
xil_printf("Timer interrupt occured %d \r\n", timer_count++);
//timer_count++;
XIntc_Acknowledge(&xps_intc_0, XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR);
}
void gpio_init_handler(void * baseaddr_p) {
xil_printf("Dip_4Bit interrupt occured %d .\r\n", dip_count++);
XGpio_InterruptClear(&xps_dip_4bit_switch, 0xFFFF);
XIntc_Acknowledge(&xps_intc_0,XPAR_XPS_INTC_0_DIP_SWITCHES_4BIT_IP2INTC_IRPT_INTR);
} 本帖最后由 wangshaosh123 于 2012-10-12 12:16 编辑
io 方向设置了吗？另外GPIO有输入中断和输出中断之分
判断FPGA硬件是否正常，可以去生产一个外围设备测试的代码，
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