嵌入式系統(tǒng)設(shè)計試驗四

專業(yè)：測控技術(shù)與儀器姓名：顏宣 沏戶/要實驗報告學號：3130103850 沏戶/要實驗報告口期：2018.3.28 地點：創(chuàng)客空間 課程名稱：嵌入式系統(tǒng)設(shè)計 指導(dǎo)老師：馬永昌成績：實驗名稱：實驗四C語言裸機編程實驗類型：驗證型 同組學生姓名：—孫凡原一、實驗?zāi)康暮鸵螅ū靥睿┤⒅饕獌x器設(shè)備（必填）五、實驗數(shù)據(jù)記錄和處理七、討論、心得二、實驗內(nèi)容和原理（必填）四、操作方法和實驗步驟六、實驗結(jié)果與分析（必填）一、實驗?zāi)康暮鸵螅ū靥睿┤⒅饕獌x器設(shè)備（必填）五、實驗數(shù)據(jù)記錄和處理七、討論、心得二、實驗內(nèi)容和原理（必填）四、操作方法和實驗步驟六、實驗結(jié)果與分析（必填）一、實驗?zāi)康暮鸵蟪醪搅私釩運行庫初步了解gccarm常用編譯選項了解ARM中斷處理過程二、實驗內(nèi)容和原理編寫c裸機代碼實現(xiàn)跑馬燈，通過控制Timer中斷實現(xiàn)通過控制uart串口進行調(diào)試打印訂三、主要儀器設(shè)備樹莓派、PC機線四、操作方法和實驗步驟： 1通過定時器產(chǎn)生中斷，控制gpio,實現(xiàn)跑馬燈: 2控制uart控制器，產(chǎn)生調(diào)試打印。I 五、實驗數(shù)據(jù)記錄和處理I 1.主程序arm.c注釋; 〃包含頭文件: #include<string.h>: #include<stdio.h>#include<stdlib.h>#includeHrpi-aux.hn: #include Hrpi-armtimei-.hH： #include Hrpi-gpio.hn： #include Hrpi-iiiternipts.hn#includeHrpi-systimer.hnI ^include Hrpi-led.hH/**Mainfiinction-wellneverreturnfromhere*/P.2實驗名稱：姓名：學號：voidkerneLmam(unsignedint10.unsignedmtrl.unsignedintatags)(/*IiiitLed*/LED_INIT();〃初始化LED,將LED的GPIO設(shè)置為輸出〃設(shè)置流水燈GPIO5,6,13為輸出RPI_SetGpioOutput(RPI_GPIO5);RPI_SetGpioOutput(RPI_GPIO6);RPI_SetGpioOutput(RPI_GPIO13);/*EnablethetiineriiitenuptIRQ*/〃使能定時器中斷RPI_GetIiqContioller()->Enable_Basic_IRQs=RPI_BASIC_ARM_TIMER_IRQ;/*Setupthesystemtimerinternipt*//*Timerfiequency=Clk/256*0x400*/RPI_GetAimTuner()->Load=0x400;門設(shè)置計時卷的裝載值/*SetuptheARMTuner*/〃配置計時器的控制寄存器RPI_GetAimTuner()->Control=RPI_ARMTINIER_CTRL_23BIT| 〃設(shè)置計時器為l:23-bitcounterRPI_ARMTIMER_CTRL_ENABLE|//使能定時器RPI_ARMTIMER_CTRL_INT_ENABLE|//使能定時器中斷RPI_ARMTIMER_CTRL_PRESCALE_256;//定時器分頻/*Enableiiitenupts!*/_enable_intenupts();//使能中斷/*InitialisetheUART*/RPI_AuxMiniUaitIiut(115200.8); //初始化串II,波特率115200,數(shù)據(jù)以8位傳送/*PrinttotlieUARTusingthestandardlibcfiinctions*///打印串口piin氓nEmbededsystemexperiment\i\nM);piin氓^InitialiseUARTconsolewithstandardlibc\r\n\iT);while(l)prmtf(nSerialLoopOutputW);RPI_WaitMicroSeconds(50000);〃延時等中斷})P.3實驗名稱：姓名：學號：j 2.流水燈代碼：void_attribute—((iiitemipt(nIRQn)))iiitenupt_vectoi(void) "定時器中斷處理函數(shù)中實現(xiàn)流7kllj (staticintlit=0;: staticintticks=0;: staticintseconds=0;： staticintflag=0;//用作流水燈標志位，每進入一次中斷改變一次值j staticint light_O;〃定義三個燈: staticint light」；: staticint light_2;： RPI_GetAimTiiner()->IRQClear=1;: ticksf: if(ticks>1)* (ticks=0;裝seconds-H-;訂 if(seconds>59)線 seconds=0;calculateframecount=1;:}■:}■?j /*Flip theLED*/1 if(出)TOC\o"1-5"\h\zJ (： LED_OFF();j ht=0;] }： elsej ([ LED_ON();: lit=1;j }? if(flag=0)//flag為0,亮燈5,滅6,13light.O=RPI_GPIO5;light」=RPI_GPIO6;light_2=RPI_GPIO13;P.4實驗名稱：姓名：學號：： flag++；i }： elseif(flag==1)//flag為1,亮燈6,滅5,13j {j light.O=RPI_GPIO6;: light.l=RPI_GPIO5;: light_2=RPI_GPIO13;: flag++;: }: else //flag 為2,亮燈13,滅5,6j {： light.O=RPI_GPIO13;: light.l=RPI_GPIO5;: light_2=RPI_GPIO6;j flag=0;j }RPI_SetGpioValue(light_O.RPIJO_HI);//light_O設(shè)置高電平，點亮燈裝 RPI_SetGpioValue(light_l,RPIJO.LO); //light_l設(shè)置低電平，熄滅燈RPI_SetGpioValue(light_2,RPIJO_LO);〃Hght_2設(shè)置低電平，熄滅燈訂}.編譯燒錄yrjj^ubuntu:-/Documents/C_CODE$surootPassword: iroot^ubuntu:/hone/yrjj/Documents/C_CODE#makearn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abt=hard-march=armv7-a-ntdne=cortex-a7-01-nostartfiles-obuild/armc-cstartup.o-csource/armc-cstartudarn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-ntdne=cortex-a7-01-nostartfiles-obuild/armc-cstubs.o-csource/armc-cstubs.carn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abt=hard-march=armv7-a-ntine=cortex-a7-01-nostartftles-obutld/armc.o-csource/arnc.carn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-mtine=cortex-a7-obuild/armc-start.0-csource/armc-start.Sarn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abt=hard-march=armv7-a-ntdne=cortex-a7-01-nostartftles-obulld/rpt-arnttmer.0-csource/rpt-armttmer.carn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-mtdne=cortex-a7-01-nostartfiles-obuild/rpi-aux.o-csource/rpi-aux.carn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abt=hard-march=armv7-a-ntune=cortex-a7-01-nostartftles-obuild/rpi-gpio.0-csource/rpi.-gpto.carn-none-eabi-gcc-DRPI2=1-nfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-mtune=cortex-a7-01-nostartfiles-obuild/rpi-interrupts.o-csource/rpi-interruptP.5實驗名稱：姓名：學號：arm-none-eabi-gcc-DRPI2=1-mfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-mtune=cortex-a7-01-nostartfiles-obuild/rpi-systimer.o-csource/rpi-systimer?cam-none-eabi-gcc-DRPI2=1-mfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-mtune=cortex-a7-01-nostartftles-obutld/rpt-led.o-csource/rpt-led.carm-none-eabi-gcc-mfpu=neon-vfpv4-mfloat-abi=hard-march=armv7-a-mtune=cortex-a7-01-nostartfiles-Tkernel.Idbuild/armc-cstartup.obuild/arnc-cstubs.obutld/arnc.obuild/armc-start.obuild/rpi-armtimer.obuild/rpi-aux.obuild/rpi-gpio.obuild/rpi-interrupts.obuild/rpi-systimer.obuild/rpi-led.o-obuild/output.elfarm-none-eabi-objcopybuild/output.elf-0binarykernel?.imgarm-none-eabt-objdump-dbutld/output.elf>kernel.Itst「oot@ubuntu:/home/y「jj/Documents/C_CODE#|將kernel7.ung拷貝至sd卡，然后上電樹莓派運行觀察結(jié)果.硬件接線P.6實驗名稱：姓名:學號:RaspberryPiB+J8Header0133*DCPy.103GPIO205OPIO3GPIO409GroundGPIO1713GPIO2715GPIO221736DCP-GPIOIOGPIO ,O)GPIO1125Ground27ID.8D<I2GPIO5GPIO6GPIO1335GPIO1937GPIO268GroundNAMEPat>#□CPcwtj302□CPcwa⑶CMGround06GPIOH1JoGPIO151。GPIO1812GroundUGPKJ2316GPJO2419GraunO.—GRO2522G*QS24(SPLCFGPQ726(I2CIDEEPROW)D_8C28Ground30GPIO1232Grouno34GPIO1636GPK?0388102140BasicSenalsettingSerialpcxt*COM5(ProlificUS8-to-Se<iaiConvnPon(CCX*0Q /明國吧53HTelnetRshXdmcpRDPVNC瑾］xFileShell8rtm8rMoshA央sS3Spaed(bp5)*11S20O$Ad/anozdSorialsettingsQTarmnaJsettings Bookmarksattin^sSerial(COM)sessionOCancel六、實驗結(jié)果與分析P.7SerialSerialSerialSerialSerialserialLoopLoopSerialSerialSerialSerialSerialserialLoopLoopLoopLoopLoopLOOPSonalSerialSerialSerialSerialSerialSerialSerialSerialSerialSerialSonalserialSerialSerialSerialSerialSerialSerialSerialSerialSerialSonalserialSerialSerialSerialSerialSerialSerialLOOPLoopLO