stm32課程設(shè)計(jì)報(bào)告

1、利用TIM定時(shí)器的中斷和定時(shí)功能實(shí)現(xiàn)跑馬燈原理及目的1、學(xué)習(xí)stm32庫(kù)開(kāi)發(fā)2、理解和熟悉I/O的使用；3、進(jìn)一步掌握定時(shí)器、中斷處理程序的編程方法4、利用庫(kù)函數(shù)開(kāi)發(fā)實(shí)現(xiàn)跑馬燈、電路原理圖PB? HTOSCK CK& TIW ETR.75 RX SD1O_C ：D PS L5 IX SPIU LK PCIi UA RX SDJO DJnmyn Hnaaw-rx 5Dio-D2 PA15 JTDT 與PB NSS/X2SJ % PAU JTCKCLK VDU 1監(jiān) PA 3 FTMS Stt DIOMJ2 CAN TXUSBDPTIM1 ETK Al 1 CANJCCVSBDM 丁附匚&

2、quot; 5； PA10U1 RA T1M1 CHJ *、 PA9UI-T TMrCH2 CHI MCO、流程圖四、軟件算法(代碼)1、Main.c #include "stm32f10x.h" #include "bsp_led.h" #include "bsp_TiMbase.h" volatile u32 time = 0; int i=0; int main(void) LED_GPIO_Config();TIM2_Configuration();TIM2_NVIC_Configuration();RCC_APB1Perip

3、hClockCmd(RCC_APB1Periph_TIM2 ENABLE); while(1) if ( time = 1000 ) time = 0; i+; if(i>=3)i=0;switch(i) case 0: LED1(OFF);LED2(OFF);LED3(ON);break; case 1: LED1(ON);LED2(OFF);LED3(OFF);break;case 2:LED1(OFF);LED2(ON);LED3(OFF);break; 2、 led.c#include "bsp_led.h" void LED_GPIO_Config(void

4、) GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);GPIO_I

5、nitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_3;GPIO_Init(GPIOC, &GPIO_InitStructure);GPIO_SetBits(GPIOB, GPIO_Pin_0);GPIO_SetBits(GPIOC, GPIO_Pin_4|GPIO_Pin_3); 3、 led.h#ifndef_LED_H#define _LED_H#include "stm32f10x.h"#define ON 0#define OFF 1#define LED1(a) if (a) GPIO_SetBits(GPIOB,GP

6、IO_Pin_0); else GPIO_ResetBits(GPIOB,GPIO_Pin_0)#define LED2(a) if (a) GPIO_SetBits(GPIOC,GPIO_Pin_4); else GPIO_ResetBits(GPIOC,GPIO_Pin_4)#define LED3(a) if (a) GPIO_SetBits(GPIOC,GPIO_Pin_3); else GPIO_ResetBits(GPIOC,GPIO_Pin_3)#define digitalHi(p,i) p->BSRR=i;#define digitalLo(p,i) p->BRR

7、=i;#define digitalToggle(p,i) p->ODRA=i;#define LED1_TOGGLE digitalToggle(GPIOB,GPIO_Pin_0)#define LED1_OFF digitalHi(GPIOB,GPIO_Pin_0)#define LED1_ON digitalLo(GPIOB,GPIO_Pin_0)#define LED2_TOGGLE digitalToggle(GPIOC,GPIO_Pin_4)#define LED2_OFF digitalHi(GPIOC,GPIO_Pin_4)#define LED2_ON digitalL

8、o(GPIOC,GPIO_Pin_4)#define LED3_TOGGLE digitalToggle(GPIOC,GPIO_Pin_3)#define LED3_OFF digitalHi(GPIOC,GPIO_Pin_3)#define LED3_ON digitalLo(GPIOC,GPIO_Pin_3)void LED_GPIO_Config(void);#endif /* _LED_H */bsp_TiMbase.c#include "bsp_TiMbase.h"void TIM2_NVIC_Configuration(void) NVIC_InitTypeDe

9、f NVIC_InitStructure;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStruct

10、ure);void TIM2_Configuration(void)TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM,2 ENABLE);TIM_TimeBaseStructure.TIM_Period=1000;TIM_TimeBaseStructure.TIM_Prescaler= 71;TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);TIM_ClearFlag(TIM2, TIM_FLAG_Update);TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);TIM_Cmd(TIM2, ENABLE);RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 DI