并行IO接口试验报告

1、并行I/O接口实验报告一、实验目的1 .掌握GPIOIP核的工作原理和使用方法。2 .掌握IO接口程序控制方法3 .掌握中断控制方式的IO接口设计原理4 .掌握中断程序设计方法二、实验任务使用查询、中断两个方式做独立式开关输入，将开关的状态显示到console。三、硬件平台建立1.硬件框图2.通过xps建立最小系统，打开system.xmp文件0此®M陶顿“更片国邺，下我Ji音乐一匚1常_软件(DO池任：)一f(F:)gen日impactbatchBlbitinit1clock_generator_0flPtgenHIplatgen.opt§psf2EdwardsyEter

2、m.bEbHIsystemsystenni.nnake|System.mhs辱systemsystemincLmiake0t«tS|xdsgen2017/5/2320:24女2017/5/232024讣2017/5/2320:18如2017/5/2320:1?又小2017/5/2320:15OPT2017/5/2?20:27女杰2017乃10:152017/5/2615:26201775/2615:10MAk2017/5/2220:17MH92017/5/2320:17Xilin2OT7/5/2615:10MAk2017/5/23纳28讣2017/5/2320:27文本3.添加和配置

3、GPIO核，并改写ucf文件NET"Cl?：11TNM_iTET=3ys_GlIr_pin；TIMESPEGT3_sy3_clk_pin=PERICD3ys_clc_pin1D0Q00ItHz;NTT"CLK"LOC-nE3M|IOSTAMDARD="1¥,-10533,'NTT"RESETSLOC-"E16l，r|IOSTANDARD-"-VCMOS33M;WET"b>"LOU*”二三”WET"RsTx"LOe-nD4"lOSWJDARD-"

4、;'-JM1二二”LTET"Bltton_GPIO_IO_I_pi_n<0>nUET-n二GPS二工汇工_p-NUTlO21°Z1If1n<2>"NET-Eu匕t;二G目工O二工C二工二p工口<3>|IOSTANDARD=riLVCMDS33"；LOC="Tien|工。STAN略RXU;LOC-"R10"|IOSIANDSkRI>="LVCMO5331r;L0C=J'V1"IIOSIANDARI>=r,y.'Z'AC53F;4

5、添加和配置中断控制器IP核5产生外部GPIO连接自ExternalPortsGPIO_IOJ_pinButterHgpio0±£Pfl0J0_lJirNONCLKclock_gerrerator_0:CLKlN/ixzCLKRESETproc_5ys_re5et_0"Ext_ResetJnclock_generator_0i;RST£工yRSTRsRxRS232:uart_O:RX/IVNON的荫R&2S2:uart.O:iTX/0YNONjfx/4fjte_0日fTJ!crob/sze_Q_c/fmbLMB_CLKc1t>ck_gener

6、atorO;：CLKOUTO/ICLKSYSRETprDC_sys_reset_0:Bu£_Struct_Re.yi£IRST由microbiazeGiltnb回rnicrcb/sie_0rnicrobhze_S_bram_blockfnscrobUz_0_d_brm_ct/micrab/zts_7br3rn_ctrJ由dbu_moduleEax/jntcO四、软件平台建立1 .软件流程图2 .查询代码/*gpio.c*Createdon:2017-5-24Author:201511*/#include"xparameters.h"#include&qu

7、ot;xgpio.h"#include"xintc.h"#include"stdio.h"voidInitialize。；voidDelay_50ms();voidPushBtnHanler(void*CallBackRef);voidSwitchHandler(void*CallBackRef);XGpioDips;XIntcintCtr1;intpshDip;intstate1;intmain()Initialize();xil_printf("rnRunningGpioInputInterrupt!rn");while

8、(1)if(pshDip)若按下按键，则打印信息xil_printf("SwitchInterruptTrigger!thestateis0x%Xnr",state1);pshDip=0;return0;voidInitialize()初始化Dips实例，并设定其为输入方式XGpio_Initialize(&Dips,XPAR_DIP_DEVICE_ID);XGpio_SetDataDirection(&Dips,1,0xff);/初始化intCtrl实例XIntc_Initialize(&inCtrl,XPAR_AXI_INTC_0_DEVICE_

9、ID);/GPIO中断使能XGpio_InterruptEnable(&Dips,1);XGpio_InterruptGlobalEnable(&Dips);/对中断控制器进行中断源使能XIntc_Enable(&intCtrl,XPAR_AXI_INTC_0_DIP_IP2INTC_IRPT_INTR);注血中断服务函数XIntc_Connect(&intCtrl,XPAR_AXI_INTC_0_DIP_IP2INTC_IRPT_INTR,(XInterruptHandler)SwitchHandler,(void*)0);microblaze_enable_

10、interrupts();允许处理器处理中断；注册中断诂制器疝理函数microblaze_register_handler(XInterruptHandler)XIntc_InterruptHandler,(void*)&intCtrl);XIntc_Start(&inCtrl,XIN_REAL_MODE);启动中断控制器voidDelay_50ms()inti;for(i=0;i<5000000;i+);voidSwitchHandler(void*CallBackRef)state1=XGpio_DiscreteRead(&Dips,1);/读取Switch开

11、关的状态值pshDip=1;XGpio_InterruptClear(&Dips,1);/消除中断位置3 .端口修改电*TerminalSettingsPortC0M6VBaudRate:9600VQataBits:8VStopBits:1vParity:NoneVFlowControl:NoneVTimecut(seO：5Settings:学电把OKCarreelw*埼口(COM和LPT.USESerialPort(COM切1£局件3.RunningGpiolnputInterrupt!buttonInterruptTrigger&zl!'!nhesc-aceis0x5三二七t二二InterruptTriggered?!1thestateis0k2ButtonInterruptTriggered!the3七日七uis0x1SLSttOQTnrerrupTriggered?