嵌入式综合应用实验报告

.z."嵌入式系统与接口技术实验"综合设计报告班级13物联网黄梓恩**1308040106指导教师沈兰【综合应用实验目的】【综合应用实验题目】利用GEC2410实验板，设计并实现一个综合应用系统【综合应用实验要求】要用到已学过的所有GEC2410模块，包括：GPIO端口控制：LED灯模块中断控制：按键外部中断，内部中断〔TimerorTicktime〕UART串口：键盘输入，显示器输出PWM定时器：定时中断，tout0输出驱动蜂鸣器蜂鸣器：实时时钟：当前时间，闹钟，节拍中断看门狗定时器：WTD中断，Reset【相关理论知识】【实现方案】主函数#include"2410addr.h"#include"2410lib.h"#include"def.h"e*ternvoidwatchdog_test(void);e*ternvoid__irqwatchdog_int(void);e*ternvoid__irqTick_Isr(void);e*ternvoidOpenRtc(void);e*ternvoidBUZZER_PWM_Test(void);e*ternvoidEint_Init(void);e*ternvoidEnable_Eint(void);e*ternvoidwatchdog_test(void);e*ternchart;intMain(void){ chara,b,c; ChangeClockDivider(1,1);ChangeMPllValue(0*a1,0*3,0*1);Port_Init();Uart_Select(0);Uart_Init(0,115200);Eint_Init();//外部中断初始化OpenRtc();//翻开实时时钟节拍中断watchdog_test(); Uart_Printf("**********HELLO**********\n"); Uart_Printf("1.PlanowhitLED\n"); Uart_Printf("2.Piano2\n"); DisableIrq(BIT_WDT); DisableIrq(BIT_EINT0); DisableIrq(BIT_EINT2); DisableIrq(BIT_EINT8_23);//关这4个中断，为了在键盘没按'1'或'3'之前拒绝产生这4种中断 Uart_Printf("\n1.2.3\n"); //1是键盘电子琴，2是开发板按键电子琴,3跑马灯 while(1) { a=Uart_Getch();Delay(300); if(a=='1') { Uart_Printf("ESCbacktomenu\n"); BUZZER_PWM_Test(); } if(a=='2') { Uart_Printf("ESCbacktomenu\n"); Enable_Eint(); { b=Uart_Getch();Delay(300); if(b==ESC_KEY)break; } } else Uart_Printf("Error!pleasetryagain"); } }#include"2410addr.h"#include"2410lib.h"#include"def.h"//使用K1按键触发EINT0，EINT0－>GPF0//使用K3按键触发EINT2，EINT2－>GPF2//使用K5按键触发EINT11，EINT11－>GPG3//使用K7按键触发EINT19，EINT19－>GPG11//KSCAN0－>GPE11intk=1;chart;char*week[8]={"","SUN","MON","TUES","WED","THURS","FRI","SAT"};intyear,month,date,weekday,hour,min,sec;void__irqwatchdog_int(void);void__irqTick_Isr(void);voidGet_Rtc(void);voidBuzzer_Freq_Set(U32freq);voidBuzzer_Stop(void);void__irqEint0_ISR(void);void__irqEint2_ISR(void);void__irqEint11_19_ISR(void);voidwatchdog_test(void){//initializeinterruptregisters允许WatchDog中断ClearPending(BIT_WDT);//往中断向量表填WatchDog中断向量pISR_WDT=(unsigned)watchdog_int;//Prescalervalue=100、clockdivisionfactor=128//disablewatchdogrWTCON=((100<<8)|(3<<3));//看门狗时钟周期T=WTCNT*t_watchdog=4S//看门狗喂狗rWTDAT=15000;rWTCNT=15000;rWTCON|=((1<<5)|(1<<2));//enableWatchdogtimerangwatchdoginterrupt//开中断EnableIrq(BIT_WDT);}/****watchdog_int****/void__irqwatchdog_int(void){//去除中断 rGPFDAT=rGPFDAT&~(1<<7);Delay(2000);rGPFDAT=rGPFDAT|(1<<7); rGPFDAT=rGPFDAT&~(1<<6);Delay(2000);rGPFDAT=rGPFDAT|(1<<6); rGPFDAT=rGPFDAT&~(1<<5);Delay(2000);rGPFDAT=rGPFDAT|(1<<5); rGPFDAT=rGPFDAT&~(1<<4);Delay(2000);rGPFDAT=rGPFDAT|(1<<4); }void__irqTick_Isr(void){ k=-k; if(k==1) rGPFDAT=rGPFDAT&~(15<<4); if(k==-1) rGPFDAT=rGPFDAT|(15<<4); //Get_Rtc(); //Uart_Printf("RTCTIME:%4*-%02*-%02*-%s-%02*:%02*:%02*\n",year,month,date,week[weekday],hour,min,sec); ClearPending(BIT_TICK);}voidOpenRtc(void){pISR_TICK=(unsigned)Tick_Isr;rTICNT=0*BF;//Ticktimeinterruptenable;Ticktimecountvalue=63EnableIrq(BIT_TICK);//openRTCTICKINTERRUPT}voidGet_Rtc(void){rRTCCON=0*01; //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768 if(rBCDYEAR==0*99) year=0*1999; else year=0*2000+rBCDYEAR; month=rBCDMON; date=rBCDDATE; weekday=rBCDDAY; hour=rBCDHOUR; min=rBCDMIN; sec=rBCDSEC;rRTCCON=0*0;//RTC读写制止，选择BCD时钟、计数器，无复位，1/32768}voidBUZZER_PWM_Test(void){ //U16freq; //Uart_Printf("\nKEYCONTROLBUZZER\n"); //Uart_Printf("Press'ESC'keytoE*itthisprogram!\n\n");while(1){ U8key=Uart_Getch();//通过异步串行通道Uart输入按键值 switch(key) { case'1':Buzzer_Freq_Set(200);rGPFDAT=rGPFDAT&~(1<<4);Delay(800);rGPFDAT=rGPFDAT|(1<<4);Buzzer_Stop();break; case'2':Buzzer_Freq_Set(300);rGPFDAT=rGPFDAT&~(1<<5);Delay(800);rGPFDAT=rGPFDAT|(1<<5);Buzzer_Stop();break; case'3':Buzzer_Freq_Set(500);rGPFDAT=rGPFDAT&~(1<<6);Delay(800);rGPFDAT=rGPFDAT|(1<<6);Buzzer_Stop();break; case'4':Buzzer_Freq_Set(800);rGPFDAT=rGPFDAT&~(1<<7);Delay(800);rGPFDAT=rGPFDAT|(1<<7);Buzzer_Stop();break; case'5':Buzzer_Freq_Set(1000);rGPFDAT=rGPFDAT&~(1<<4);Delay(800);rGPFDAT=rGPFDAT|(1<<4);Buzzer_Stop();break; case'6':Buzzer_Freq_Set(1200);rGPFDAT=rGPFDAT&~(1<<5);Delay(800);rGPFDAT=rGPFDAT|(1<<5);Buzzer_Stop();break; case'7':Buzzer_Freq_Set(1400);rGPFDAT=rGPFDAT&~(1<<6);Delay(200);rGPFDAT=rGPFDAT|(1<<6);Buzzer_Stop();break; } //Buzzer_Freq_Set(freq); //Uart_Printf("\tFreq=%d\n",freq);//通过异步串行通道Uart输出频率 if(key==ESC_KEY) { Buzzer_Stop();//停顿蜂鸣器 //{break;} //Uart_Printf("\nChoiceagain\n"); return; } }}voidBuzzer_Freq_Set(U32freq){ rGPBCON=rGPBCON&~(3<<0)|(1<<1);//setGPB0astout0,pwmoutput rTCFG0=rTCFG0&~0*ff|15;//prescaler=15 rTCFG1=rTCFG1&~0*f|2;//divider=1/8 rTCNTB0=(PCLK>>7)/freq;//rTCNTB0=PCLK/{(prescaler+1)*divider*freq} rTCMPB0=rTCNTB0>>1; //占空比50% //disabledeadzone,auto-reload,inv-off,updateTCNTB0&TCMPB0,starttimer0 rTCON=rTCON&~0*1f|(0<<4)|(1<<3)|(0<<2)|(1<<1)|(1); rTCON&=~(1<<1); //clearmanualupdatebit}voidBuzzer_Stop(void){ rGPBCON|=1; rGPBCON=rGPBCON&~3|1; //setGPB0asoutput rGPBDAT&=~1;//output0}/***********外部中断初始化************/voidEint_Init(void){//设置GPE11为输出0 rGPECON=(rGPECON|(3<<22))&~(2<<22); rGPEUP|=(1<<11); rGPEDAT&=~(1<<11);rGPFCON=rGPFCON&~(3)|(1<<1); //GPF0设置为EINT0rGPFCON=rGPFCON&~(3<<4)|(1<<5); //GPF2设置为EINT2 rGPGCON=rGPGCON&~(3<<6)|(1<<7); //GPG3设置为EINT11rGPGCON=rGPGCON&~(3<<22)|(1<<23);//GPG11设置为EINT19rGPFUP|=(1<<0);//disableGPF0pulluprGPFUP|=(1<<2);//disableGPF2pulluprGPGUP|=(1<<3);//disableGPG3pullup rGPGUP|=(1<<11);//disableGPG11pullup rE*TINT0=(rE*TINT0&~(7<<0))|(2<<0);//EINT0－>fallingedgetriggered rE*TINT0=(rE*TINT0&~(7<<8))|(2<<8);//EINT2－>fallingedgetriggered rE*TINT1=(rE*TINT1&~(7<<12))|(0*2<<12);//EINT11－>fallingedgetriggered rE*TINT2=(rE*TINT2&~(7<<12))|(0*2<<12);//EINT19－>fallingedgetriggered pISR_EINT0=(unsigned)Eint0_ISR;pISR_EINT2=(unsigned)Eint2_ISR;pISR_EINT8_23=(unsigned)Eint11_19_ISR;}/***********开外部中断************/voidEnable_Eint(void){rEINTPEND=0*ffffff;//toclearthepreviouspendingstatesrSRCPND|=BIT_EINT0|BIT_EINT2|BIT_EINT8_23;rINTPND|=BIT_EINT0|BIT_EINT2|BIT_EINT8_23;rEINTMASK=~((1<<11)|(1<<19));//rINTMSK=~(BIT_EINT0|BIT_EINT2|BIT_EINT8_23);EnableIrq(BIT_EINT0);EnableIrq(BIT_EINT2);EnableIrq(BIT_EINT8_23);}/***********外部中断效劳程序************/void__irqEint0_ISR(void){ ClearPending(BIT_EINT0);Buzzer_Freq_Set(300);//修改PMW频率Delay(800);Buzzer_Stop(); Uart_Printf("Freq=300\n");//通过异步串行通道Uart输出频率}void__irqEint2_ISR(void){ ClearPending(BIT_EINT2);Buzzer_Freq_Set(500);//修改PMW频率Delay(800);Buzze