嵌入式系统设计课设报告材料

word某某大学嵌入式系统设计课设报告书题 目： 基于28027的虚拟系统 姓 名：学 号：学 院： 电气工程与自动化学院 专 业：电气工程与自动化年 级：起讫日期：指导教师：目 录1、课程设计目的12、课程设计题目和实现目标13、设计方案14、程序流程图15、程序代码16、调试总结17、设计心得体会18、参考文献11、课程设计目的嵌入式系统设计课设是与嵌入式系统设计课程相配套的实践教学环节。嵌入式系统设计是一门实践性很强的专业根底课，通过课程设计，达到进一步理解嵌入式芯片的硬件、软件和综合应用方面的知识，培养实践能力和综合应用能力，开拓学习积极性、主动性，学会灵活运用已经学过的知识，并能不断承受新的知识。培养大胆发明创造的设计理念，为今后就业打下良好的根底。通过课程设计，掌握以下知识和技能：1 嵌入式应用系统的总体方案的设计；2 嵌入式应用系统的硬件设计；3 嵌入式应用系统的软件程序设计；4 嵌入式开发系统的应用和调试能力2、 课程设计题目和实现目标 课程设计题目：基于28027的虚拟系统任务要求：A、 利用28027的片上温度传感器，检测当前温度；B、 通过PWM过零中断作为温度检测A/D的触发，在PWM中断时完成温度采样和下一周期PWM占空比的修正；PWM频率为1K;C、 利用按键作为温度给定；温度给定变化从10度到40度。D、 当检测温度超过给定时，PWM占空比增减小减小幅度自己设定；当检测温度小于给定时，PWM占空比增大增大幅度自己设定；E、 把PWM输出接到捕获口，利用捕获口测量当前PWM的占空比；F、 把E测量的PWM占空比通过串口通信发送给上位机；3、 设计方案-介绍系统实现方案和系统原理图系统实现方案：任务A:利用ADC模块通道A5获取当前环境温度。任务B:PWM过零触发ADC模块，在PWM中断服务函数中，将当前环境温度和按键设定温度进展比拟，并按照任务D的要求修订PWM占空比。PWM频率为1K HZ:根据关系式：TBCLK=SYSCLKOUT/HSPCLKDIV*CLKDIV)取SYSCLKOUT=60M HZ,HSPCLKDIV=6，CLKDIV=1，求得TBCLK=10M HZ。将period设为10K，便得到1K HZ 的PWM波。任务C:用KEY模块的中断实现温度给定。任务D：在PWM的周期完毕产生的中断中，通过改变比拟点CMPA的位置来改变PWM占空比的大小。任务E：利用CAP模块设置3个捕获点捕获PWM的上升沿和下降沿，计算得到PWM波的占空比。任务F：利用SCI模块实现串口通信将温度和占空比上传到上位机。此外，各模块的配置都与GPIO模块有关。系统原理图：28027 C2000 Piccolo Launchpad原理图4、 程序流程-各个模块的流程图5、 程序代码/*app.c*/ the includes#includeApplication/app.h/ */ the defines/ */ the globals/ */ the functionsvoiddelay(uint32_t time) while(time-); /延时函数/ end of file/*isr.c*/ the includes#includeApplication/isr.h/ */ the defines/ */ the globals/ */ the functionsinterruptvoidLED_PWM_isr(void)/PWM的中断服务函数if(MY_ADC40)SET_TEMP=10;PIE_clearInt(myPie,PIE_GroupNumber_1);interruptvoidMY_CAP_isr(void)/CAP中断服务函数uint32_t CapEvent1Count=0,CapEvent2Count=0,CapEvent3Count=0;float fPwmDuty=0.0; CapEvent1Count = CAP_getCap1(myCap); CapEvent2Count = CAP_getCap2(myCap); CapEvent3Count = CAP_getCap3(myCap); fPwmDuty = (float)(CapEvent2Count - CapEvent1Count) / (CapEvent3Count - CapEvent1Count);/计算PWM占空比 fPwmDuty=fPwmDuty*100; NOW_PWM=(int)fPwmDuty; CAP_clearInt(myCap, CAP_Int_Type_CEVT3); CAP_clearInt(myCap, CAP_Int_Type_Global);/ Acknowledge this interrupt to receive more interrupts from group 4 PIE_clearInt(myPie, PIE_GroupNumber_4);/ end of file/*F2802x_Device.h*/ #includeF2802x_ponent/include/adc.h#includeF2802x_ponent/include/clk.h#includeF2802x_ponent/include/flash.h#includeF2802x_ponent/include/gpio.h#includeF2802x_ponent/include/pie.h#includeF2802x_ponent/include/pll.h#includeF2802x_ponent/include/timer.h#includeF2802x_ponent/include/wdog.h#includeF2802x_ponent/include/sci.h#includeF2802x_ponent/include/cap.h/*Key.c*/ the includes#includeUser_ponent/Key/Key.h/ */ the defines/ */ the globals/ */ the functions/ the function prototypes/! brief KEY initail/! paramin None/! paramout NonevoidKEY_initial(void)/! brief KEY configure/! paramin None/! paramout NonevoidKEY_config(void) /按键为GPIO12设置为输入口 /1. modeGPIO_setMode(KEY_obj, KEY1, GPIO_12_Mode_GeneralPurpose);/2. directionGPIO_setDirection(KEY_obj, KEY1, GPIO_Direction_Input);/3. pullupGPIO_setPullUp(KEY_obj, KEY1, GPIO_PullUp_Disable);/4. qualificationGPIO_setQualification(KEY_obj, KEY1, GPIO_Qual_Sync);/! brief ScanKey API/! paramin key/! paramout the state of KEYuint16_tScanKey(constGPIO_Number_e key)return GPIO_getData(KEY_obj, key);/! paramin None/! paramout NonevoidKEY_INT_config(void) /(3). register PIR vectorPIE_registerPieIntHandler(myPie, PIE_GroupNumber_1, PIE_SubGroupNumber_4, (intVec_t) &KEY_xint1_isr);/(4). module interrupt configurePIE_setExtIntPolarity(myPie，CPU_ExtIntNumber_1, PIE_ExtIntPolarity_FallingEdge);GPIO_setExtInt(myGpio, GPIO_Number_12, CPU_ExtIntNumber_1);/(5). enable module IEPIE_enableExtInt(myPie, CPU_ExtIntNumber_1);PIE_enableInt(myPie, PIE_GroupNumber_1, PIE_InterruptSource_XINT_1);/(7) enable CPU IERxCPU_enableInt(myCpu, CPU_IntNumber_1);/! brief Interrupt Service Routine/! paramin None/! paramout NoneTARGET_EXT interruptvoidKEY_xint1_isr(void); / end of file/*Key.h*/#ifndef _KEY_H_#define _KEY_H_/ the includes#include/ driver#includeF2802x_ponent/F2802x_Device.h#includeUser_ponent/User_Mcu/User_System.h#ifdef _cplusplusexternC #endif#ifndef TARGET_GLOBAL#define TARGET_EXT extern#else#define TARGET_EXT#endif/*- hardware description of the example module -*/ For example/ The module derived from GPIO#define KEY_obj myGpio #define KEY1 GPIO_Number_12 /pinTARGET_EXT voidKEY_initial(void);TARGET_EXT voidKEY_config(void);TARGET_EXT voidKEY_INT_config(void);TARGET_EXT interruptvoidKEY_xint1_isr(void); /*-end of hardware description -*/TARGET_EXT uint16_tScanKey(constGPIO_Number_e key);/*-end of API description -*/#define KEYPressed 1/*- end of defines -*/#ifdef _cplusplus#endif/ extern C#endif/ end of _EXAMPLE_H_ definition/*LED_PWM.c*/ the includes#includeUser_ponent/LED_PWM/LED_PWM.h/ the functionsvoidLED_PWM_initial(void) mycmp=0; voidLED_PWM_config(void) /GPIO的配置 GPIO_setMode(myGpio,GPIO_Number_0,GPIO_0_Mode_EPWM1A); GPIO_setPullUp(myGpio,GPIO_Number_0,GPIO_PullUp_Disable);/PWM的配置 CLK_disableTbClockSync(myClk);/PWM模块使能 CLK_enablePwmClock(myClk,PWM_Number_1);/设置PWM的时钟/PWM_setClkDiv(myPwm1,PWM_ClkDiv_by_1); PWM_setHighSpeedClkDiv(myPwm1, PWM_HspClkDiv_by_6);/计数器的设置 PWM_setCounterMode(myPwm1,PWM_CounterMode_Up);/PWM周期设置 PWM_setPeriod(myPwm1,10000);/设置周期加载模式 PWM_setPeriodLoad(myPwm1,PWM_PeriodLoad_Shadow);/比拟点的设置 PWM_setCmpA(myPwm1,5000);/PWM装载模式 PWM_setLoadMode_CmpA(myPwm1,PWM_LoadMode_Period);/动作 PWM_setActionQual_tUp_CmpA_PwmA(myPwm1,PWM_ActionQual_Set); PWM_setActionQual_Period_PwmA(myPwm1,PWM_ActionQual_Clear);/时钟同步 CLK_enableTbClockSync(myClk); voidLED_PWM_INT_config(void) PIE_registerPieIntHandler(myPie,PIE_GroupNumber_3,PIE_SubGroupNumber_1,(intVec_t)&(LED_PWM_isr);/模块中断配置 PWM_setIntMode(myPwm1,PWM_IntMode_CounterEqualPeriod); PWM_setIntPeriod(myPwm1,PWM_IntPeriod_FirstEvent);/PWM中断使能 PWM_enableInt(myPwm1);/PIE开关的允许 PIE_enableInt(myPie, PIE_GroupNumber_3, PIE_InterruptSource_EPWM1);/CPU全局中断 CPU_enableInt(myCpu,CPU_IntNumber_3); / end of file/LED_PWM.h*/#ifndef _LED_PWM_H_#define _LED_PWM_H_/ the includes#include/ driver#includeF2802x_ponent/F2802x_Device.h#includeUser_ponent/User_Mcu/User_System.h#ifdef _cplusplusexternC #endif#ifndef TARGET_GLOBAL#define TARGET_EXT extern#else#define TARGET_EXT#endif/*- hardware description of the example module -*/TARGET_EXT voidLED_PWM_initial(void);TARGET_EXT voidLED_PWM_config(void);TARGET_EXT voidLED_PWM_INT_config(void);TARGET_EXT interruptvoidLED_PWM_isr(void); /*-end of hardware description -*/TARGET_EXT uint16_t mycmp;#ifdef _cplusplus#endif/ extern C#endif/ end of _EXAMPLE_H_ definition/*MY_ADC.c*/ the includes#includeUser_ponent/MY_ADC/MY_ADC.h/ the functionsvoidMY_ADC_initial(void)SET_TEMP=30; /初始设定温度为30摄氏度voidMY_ADC_config(void) /ADC时钟使能 CLK_enableAdcClock(myClk);/初始化ADC模块 ADC_setVoltRefSrc(myAdc, ADC_VoltageRefSrc_Int); ADC_powerUp(myAdc); ADC_enableBandGap(myAdc); ADC_enableRefBuffers(myAdc); ADC_enable(myAdc);/温度转换使能 ADC_enableTempSensor(myAdc);/soc配置 ADC_setSocChanNumber(myAdc, ADC_Soumber_0, ADC_SocChanNumber_A5); ADC_setSocSampleWindow(myAdc, ADC_Soumber_0, ADC_SocSampleWindow_7_cycles); ADC_setSocTrigSrc(myAdc, ADC_Soumber_0, ADC_SocTrigSrc_EPWM1_ADCSOCA);/PWM配置 PWM_setSocAPulseSrc(myPwm1,PWM_SocPulseSrc_CounterEqualZero); PWM_setSocAPeriod(myPwm1,PWM_SocPeriod_FirstEvent); PWM_enableSocAPulse(myPwm1);voidMY_ADC_INT_config(void)PIE_registerPieIntHandler(myPie,PIE_GroupNumber_10,PIE_SubGroupNumber_1,(intVec_t)&(MY_ADC_isr);/模块中断配置 ADC_setIntPulseGenMode(myAdc, ADC_IntPulseGenMode_Prior); ADC_setIntSrc(myAdc,ADC_IntNumber_1, ADC_IntSrc_EOC0); ADC_setIntMode(myAdc, ADC_IntNumber_1, ADC_IntMode_ClearFlag);/ADC中断使能 ADC_enableInt(myAdc,ADC_IntNumber_1);/PIE开关的允许 PIE_enableInt(myPie, PIE_GroupNumber_10, PIE_InterruptSource_ADCINT_10_1);/CPU全局中断 CPU_enableInt(myCpu,CPU_IntNumber_10);/ end of file/*MY_ADC.h*/#ifndef _MY_ADC_H_#define _MY_ADC_H_/ the includes#include/ driver#includeF2802x_ponent/F2802x_Device.h#includeUser_ponent/User_Mcu/User_System.h#ifdef _cplusplusexternC #endif#ifndef TARGET_GLOBAL#define TARGET_EXT extern#else#define TARGET_EXT#endif/*- hardware description of the example module -*/TARGET_EXT voidMY_ADC_initial(void);TARGET_EXT voidMY_ADC_config(void);TARGET_EXT voidMY_ADC_INT_config(void);TARGET_EXT interruptvoidMY_ADC_isr(void); /*-end of hardware description -*/TARGET_EXT uint16_t MY_ADC;TARGET_EXT uint16_t SET_TEMP;/*- end of globals -*/#ifdef _cplusplus#endif/ extern C#endif/ end of _EXAMPLE_H_ definition/*MY_CAP.c*/ the includes#includeUser_ponent/MY_CAP/MY_CAP.h#includeUser_ponent/User_Mcu/User_System.hvoidMY_CAP_initial(void)voidMY_CAP_config(void)GPIO_setPullUp(myGpio, GPIO_Number_5, GPIO_PullUp_Enable);GPIO_setQualification(myGpio, GPIO_Number_5, GPIO_Qual_Sync); GPIO_setMode(myGpio, GPIO_Number_5, GPIO_5_Mode_ECAP1); CLK_enableEcap1Clock(myClk); CAP_disableInt(myCap, CAP_Int_Type_All); / 禁止CAP中断 CAP_clearInt(myCap, CAP_Int_Type_All); / 去除CAP中断标志位 CAP_disableCaptureLoad(myCap); / Disable CAP1-CAP4 register loads CAP_disableTimestampCounter(myCap); / Make sure the counter is stopped/ Configure peripheral registers CAP_setCapContinuous(myCap); / continuous CAP_setStopWrap(myCap, CAP_Stop_Wrap_CEVT4);/ Stop at 3 events CAP_setCapEvtPolarity(myCap, CAP_Event_1, CAP_Polarity_Rising); / 捕获上升沿 CAP_setCapEvtPolarity(myCap, CAP_Event_2, CAP_Polarity_Falling); / 捕获下降沿 CAP_setCapEvtPolarity(myCap, CAP_Event_3, CAP_Polarity_Rising); / 捕获上升沿 CAP_setCapEvtReset(myCap, CAP_Event_3, CAP_Reset_Enable); / 重置计数器确保计数器不会溢出 CAP_enableTimestampCounter(myCap); / 打开计数器 CAP_enableCaptureLoad(myCap); / Enable CAP1-CAP4 register loads/* CAP_enableInt(myCap, CAP_Int_Type_CEVT3); / 3个捕获点之后发生中断 / Register interrupt handlers in the PIE vector table PIE_registerPieIntHandler(myPie, PIE_GroupNumber_4, PIE_SubGroupNumber_1, (intVec_t)&ecap1_isr); / Enable CPU INT4 which is connected to ECAP1-4 INT:CPU_enableInt(myCpu, CPU_IntNumber_4); / Enable eCAP INTn in the PIE: Group 3 interrupt 1-6 PIE_enableCaptureInt(myPie); CPU_enableGlobalInts(myCpu); */voidMY_CAP_INT_config(void) CAP_enableInt(myCap, CAP_Int_Type_CEVT3); / 3 events = interrupt/ Register interrupt handlers in the PIE vector table PIE_registerPieIntHandler(myPie, PIE_GroupNumber_4, PIE_SubGroupNumber_1, (intVec_t)&MY_CAP_isr);/ Enable CPU INT4 which is connected to ECAP1-4 INT:CPU_enableInt(myCpu, CPU_IntNumber_4);/ Enable eCAP INTn in the PIE: Group 3 interrupt 1-6 PIE_enableCaptureInt(myPie); CPU_enableGlobalInts(myCpu);/ end of file/*MY_CAP.h*/#ifndef _MY_CAP_H_#define _MY_CAP_H_/ the includes#include/ driver#includeF2802x_ponent/F2802x_Device.h#ifdef _cplusplusexternC #endif#ifndef TARGET_GLOBAL#define TARGET_EXT extern#else#define TARGET_EXT#endif/*- hardware description of the example module -*/TARGET_EXT voidMY_CAP_initial(void);TARGET_EXT voidMY_CAP_config(void);TARGET_EXT voidMY_CAP_INT_config(void);TARGET_EXT interruptvoidMY_CAP_isr(void); /*-end of hardware description -*/TARGET_EXT int NOW_PWM;#ifdef _cplusplus#endif/ extern C#endif/ end of _EXAMPLE_H_ definition/*mySci.c*/ the includes#includeUser_ponent/mySci/mySci.h/ the functions/ the function prototypes/! brief SCI initail/! paramin None/! paramout NonevoidSCI_initial(void)/! brief SCI configure/! paramin None/! paramout NonevoidSCI_config(void) /1. GPIO configure/1.1 pullupGPIO_setPullUp(myGpio, GPIO_Number_28, GPIO_PullUp_Enable); GPIO_setPullUp(myGpio, GPIO_Number_29, GPIO_PullUp_Disable);/1.2 input qualification GPIO_setQualification(myGpio, GPIO_Number_28, GPIO_Qual_ASync);/1.3 modeGPIO_setMode(myGpio, GPIO_Number_28, GPIO_28_Mode_SCIRXDA);/SCI数据发送引脚GPIO_setMode(myGpio, GPIO_Number_29, GPIO_29_Mode_SCITXDA);/SCI数据接收引脚/2. enable SCIA clk CLK_enableSciaClock(myClk);/3. configure the low speed peripheral clock(LSPCLK) LSPCLK = SYSCLKOUT/4 =15MHzCLK_setLowSpdPreScaler(myClk, CLK_LowSpdPreScaler_SysClkOut_by_4);/设置时钟分频/4. SCI BRR = LSPCLK/(SCI BAUDx8) - 1SCI_setBaudRate(mySci, SCI_BaudRate_9_6_kBaud);/设置波特率为9600/5. configure package(1 stop bit, No loopback, No parity,8 char bits, async mode, idle-line protocol) SCI_disableParity(mySci); SCI_setNumStopBits(mySci, SCI_NumStopBits_One); SCI_setCharLength(mySci, SCI_CharLength_8_Bits);/6. enable SCI TX&RX SCI_enableTx(mySci); SCI_enableRx(mySci);/7.configure the SCI TX&RX FIFO/7.1 enable FIFO/先进先出 SCI_resetChannels(mySci); SCI_enableFifoEnh(mySci);/7.2 configure TX FIFO SCI_resetTxFifo(mySci);/7.3 configure RX FIFO SCI_resetRxFifo(mySci);/8. enable SCI module SCI_enable(mySci);/! brief Transmit a string from the SCI/! paramin string/! paramout Nonevoidscia_msg(char * msg)int i; i = 0;while(msgi != 0) scia_xmit(msgi); i+; /! brief Transmit a char from the SCI/! paramin char/! paramout Nonevoidscia_xmit(int a)while(SCI_getTxFifoStatus(mySci) != SCI_FifoStatus_Empty) SCI_putDataBlocking(mySci, a);/! brief Receive a char from the SCI/! paramin None/! paramout a:receive data/! 00: no received /00: receivedintscia_receive(uint16_t *a)if(SCI_getRxFifoStatus(mySci) SCI_FifoStatus_1_Word)return 0;else *a = SCI_getData(mySci);return 1;/ end of file/*mySci.h*/#ifndef _MYSCI_H_#define _MYSCI_H_/ */ the includes#include/ driver#includeF2802x_ponent/F2802x_Device.h#includeUser_ponent/User_Mcu/User_System.h#ifdef _cplusplusexternC #endif#ifndef TARGET_GLOBAL#define TARGET_EXT extern#else#define TARGET_EXT#endif/*- hardware description of the example module -*/ the function prototypes/! brief SCI initail/! paramin None/! paramout NoneTARGET_EXT voidSCI_initial(void);/! brief SCI configure/! paramin None/! paramout NoneTARGET_EXT voidSCI_config(void);/*/! brief Interrup configure/! paramin None/! paramout None/TARGET_EXT void SCI_INT_config(void);/! brief CPU Timer0 Interrupt Service Routine/! paramin None/! paramout None/*-end of hardware description -*/TARGET_EXT voidscia_msg(char * msg);TARGET_EXT voidscia_xmit(int a);TARGET_EXT intscia_receive(uint16_t *a);/*-end of API description -*/#ifdef _cplusplus#endif/ extern C#endif/ end of _EXAMPLE_H_ definition/*User_System.c*/#includeUser_ponent/User_Mcu/User_System.h/ system initialvoidSystem_initial(void)voidSystem_config(void) /system config/0.myCpu = CPU_init(void *)NULL, sizeof(CPU_Obj); myWDog = WDOG_init(void *)WDOG_BASE_ADDR, sizeof(WDOG_Obj); myPll = PLL_init(void *)PLL_BASE_ADDR, sizeof(PLL_Obj); myClk = CLK_init(void *)CLK_BASE_ADDR, sizeof(CLK_Obj);myGpio = GPIO_init(void *)GPIO_BASE_ADDR, sizeof(GPIO_Obj);myPie = PIE_init(void *)PIE_BASE_ADDR, sizeof(PIE_Obj); /中断指针赋值myTimer0 = TIMER_init(void *)TIMER0_BASE_ADDR, sizeof(TIMER_Obj); / CPU Timer0myPwm1 = PWM_init(void *)PWM_ePWM1_BASE_ADDR, sizeof(PWM_Obj); / PWM1myPwm2 = PWM_init(void *)PWM_ePWM2_BASE_ADDR, sizeof(PWM_Obj); / PWM2myAdc = ADC_init(void *)ADC_BASE_ADDR, sizeof(ADC_Obj);mySci = SCI_init(void *)SCIA_BASE_ADDR, sizeof(SCI_Obj); / SCIAmyCap = CAP_init(void *)CAPA_BASE_ADDR, sizeof(CAP_Obj);/ 1. disable watch DOG WDOG_disable(myWDog);/ 2. disable interrupt CPU_disableGlobalInts(myCpu);/ 3. Select the internal oscillator 1(10MHz) as the clock source CLK_setOscSrc(myClk, CLK_OscSrc_Internal);/ 4. Setup the PLL for x12 /2 which will yield 60Mhz = 10Mhz * 12 / 2 PLL_setup(myPll, PLL_Multiplier_12, PLL_DivideSelect_ClkIn_by_2);/ 5. PIE configure PIE_disable(myPie); /禁止PIE PIE_disableAllInts(myPie); /禁止PIE中断 CPU_disableGlobalInts(myCpu); /CPU全局中断禁止 CPU_clearIntFlags(myCpu); /CPU中断标志位清零 PIE_setDefaultIntVectorTable(myPie); /中断入口地址赋予默认值 PIE_enable(myPie); /使能PIEvoidSystemINT