嵌入式系统设计实验报告

西安邮电大学嵌入式系统设计实验报告专业班级学号学生姓名指导教师学期完成日期基于LPC2131的模拟电梯控制实验1、实验目的1、熟悉ARMFLOOR_TEMPIFFLOOR_TEMP0/如果楼层已到达底层时，改变方向向上运行DIRECTION1ELSEIFDIRECTION0IS_WORKING1OSTIMEDLYOS_TICKS_PER_SECIS_WORKING0IFWORK_COUNT1FORFLOOR_TEMP1FLOOR_TEMPFLOOR_TEMPDIRECTION1ELSEDIRECTION1ELSEIFCURRENT_FLOOR1DIRECTION1ELSEIFCURRENT_FLOOR6DIRECTION1ELSEFORFLOOR_TEMPCURRENT_FLOOR1FLOOR_TEMP1FLOOR_TEMPDOWNFLOOR_TEMPIFUPCURRENT_FLOORCURRENT_FLOORDOWN/首先响应距离较近的楼层DIRECTION1ELSEIFUPCURRENT_FLOORCURRENT_FLOOR1DIRECTION1ELSEIF6CURRENT_FLOOR0DLYFORI0I0X7FFFFIUINT8CONSTDISP_TAB100XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90OS_STKTASKSTKTASKSTKLENGH/DEFINETHETASK0STACK定义用户任务0的堆栈OS_STKTASK0STKTASKSTKLENGHOS_STKTASK1STKTASKSTKLENGHOS_STKTASK2STKTASKSTKLENGHOS_STKTASK3STKTASKSTKLENGHOS_STKTASK4STKTASKSTKLENGHVOIDMP3VOIDPDATA/对MP3主任务声明VOIDIS_BUTTON_PRESSVOIDPDATA/对判断按键任务声明VOIDPWMVOIDPDATA/对音乐播放任务声明VOIDVOICEPENDVOIDPDATA/对控制音量任务声明VOIDB_NPENDVOIDPDATAVOIDP_SPENDVOIDPDATAUINT32VOICE_GLOBALUINT32B_N_GLOBALUINT32P_S_GLOBALVOIDMSPI_INITVOID/SPI初始化PINSEL0PINSEL0/设置管脚连接SPIPINSEL0PINSEL0SPI_SPCCR0X52/设置SPI时钟分频SPI_SPCR03|/CPHA0,数据在SCK的第一个时钟沿采样14|/CPOL1,SCK为低有效15|/MSTR1,SPI处于主模式06|/LSBF0,SPI数据传输MSB位7在先07/SPIE0,SPI中断被禁止UINT8MSPI_SENDDATAUINT8DATA/向数码管发送消息IOCLRHC595_CS/片选74HC595SPI_SPDRDATAWHILE0SPI_SPSR/等待SPIF置位，即等待数据发送完毕IOSETHC595_CSRETURNSPI_SPDRINTMAINVOIDINT8UERROROSINIT/系统初始化OSTASKCREATEMP3,VOID0,/创建MP3主任务OSSTART/启动多任务环境RETURN0VOIDMP3VOIDPDATAPDATAPDATATARGETINIT/初始化目标板PINSEL10X00000000/设置管脚连接GPIOIO0DIRBEEP/设置蜂鸣器为输出IO0DIR0X3F16/选择按键作为输入PINSEL2/设置管脚连接到GPIOIO1DIR0XFF18/选择流水灯作为输出IO1SET0XFF18/使流水灯处于高电平，灯熄灭MSPI_INIT/SPI初始化IODIRHC595_CS/将SPI作为输出IO0DIR0X3F16/将P016P021作为输入OSTASKCREATEIS_BUTTON_PRESS,VOID0,/创建任务OSTASKCREATEPWM,VOID0,OSTASKCREATEVOICEPEND,VOID0,OSTASKCREATEB_NPEND,VOID0,OSTASKCREATEP_SPEND,VOID0,WHILE1OSTIMEDLY10/延时10秒VOIDVOICEPENDVOIDPDATAUINT8VOICE_MSG,ERRORVOICE_MSGOSMBOXPENDVOICE,0,/接收消息VOICE_GLOBALVOICE_MSG/将消息赋给定义变量VOIDB_NPENDVOIDPDATAUINT8B_N_MSG,ERRORB_N_MSGOSMBOXPENDB_N,0,B_N_GLOBALB_N_MSGVOIDP_SPENDVOIDPDATAUINT8P_S_MSG,ERRORP_S_MSGOSMBOXPENDP_S,0,P_S_GLOBALP_S_MSGVOIDIS_BUTTON_PRESSVOIDPDATAINT8UERROR,KEYVOICEOSMBOXCREATEVOID0/创建消息邮箱B_NOSMBOXCREATEVOID0P_SOSMBOXCREATEVOID0PDATAPDATATARGETINIT/初始化目标板WHILE1IFIO0PINIFIO0PINOSMBOXPOSTVOICE,VOID/将按键1消息发送出去ELSEIFIO0PINIFIO0PINOSMBOXPOSTVOICE,VOID/将按键2消息发送出去ELSEIFIO0PINIFIO0PINOSMBOXPOSTB_N,VOIDELSEIFIO0PINIFIO0PINOSMBOXPOSTB_N,VOIDELSEIFIO0PINIFIO0PINOSMBOXPOSTP_S,VOIDELSEIFIO0PINIFIO0PINOSMBOXPOSTP_S,VOIDELSEKEY0MSPI_SENDDATADISP_TABKEY/向数码管发送显示数据IO1CLR117KEY/点亮按键对应的流水灯IO0CLRBEEP/让蜂鸣器鸣响OSTIMEDLYOS_TICKS_PER_SEC/2/延时函数IO0SETBEEP/蜂鸣器停止鸣响OSTIMEDLY50/延时VOIDPWMVOIDPDATAUINT8ERROR,I,FLAG_B_N0,FLAG_P_S0X1UINT8VOICE_MSG,B_N_MSG,P_S_MSGUINT8TEMP0PINSEL00X0214/P07选择PWM2功能/PWM初始化/PWMPR0X00/不分频，计数频率为FPCLKPWMMCR0X02/设置PWMMR0匹配时复位PWMTCPWMPCR0X0400/允许PWM2输出，单边PWMPWMMR0FPCLK/1000PWMMR2PWMMR0/2/50占空比PWMLER0X05/PWM0和PWM2匹配锁存PWMTCR0X02/复位PWMTCPWMTCR0X09/启动PWM输出WHILE1/播放暂停停止/IFP_S_GLOBAL5IFFLAG_P_SPWMTCR0X09FLAG_P_S0ELSEPWMTCR0X00FLAG_P_S1TEMPIIFP_S_GLOBAL6PWMTCR0X00FLAG_P_S1TEMP0/声音调节/IFVOICE_GLOBAL1ELSEIFVOICE_GLOBAL2ELSE/上一曲下一曲/IFB_N_GLOBAL3IFFLAG_B_N0FLAG_B_N1ELSEIFFLAG_B_N4FLAG_B_N1ELSEFLAG_B_NIFB_N_GLOBAL4IFFLAG_B_N0FLAG_B_N4ELSEIFFLAG_B_N1FLAG_B_N4ELSEFLAG_B_NIFFLAG_B_N0FORITEMPISIZEOFHCMM1IPWMMR0FPCLK/HCMM1IPWMLER0X05DELAYHCMM_L1ITEMP0ELSEIFFLAG_B_N1FORITEMPISIZEOFHCMM1IPWMMR0FPCLK/HCMM1IPWMLER0X05DELAYHCMM_L1ITEMP0ELSEIFFLAG_B_N2FORITEMPISIZEOFHCMM2IPWMMR0FPCLK/HCMM2IPWMLER0X05DELAYHCMM_L2ITEMP0ELSEIFFLAG_B_N3FORITEMPISIZEOFHCMM3IPWMMR0FPCLK/HCMM3IPWMLER0X05DELAYHCMM_L3ITEMP0ELSEIFFLAG_B_N4FORITEMPISIZEOFHCMM4IPWMMR0FPCLK/HCMM4IPWMLER0X05DEL