STM32F1案例 基本定时器(TIM6/7)与通用定时器(TIM2/3/4/5)使用
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2022-03-13 17:31:12
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STM32F1案例 ST7735 TFT液晶显示屏综合库使用
硬件平台
- 野火STM32F103ZET6 霸道V2开发板
- 正点原子F1系列开发板
- STM32F103ZET6核心板
- ST7735 TFT液晶显示屏
软件平台
- Keil MDK 5.31
- 串口调试助手
STM32F103ZET6 定时器
STM32F1系列中，除了互联型的产品，共有 8 个定时器。
-
基本定时器
TIM6和 TIM7是一个 16 位的只能向上计数的定时器，
功能：只能定时，没有外部 IO。 -
通用定时器
TIM2/3/4/5 是一个 16 位的可以向上/下计数的定时器，
功能：可以定时，可以输出比较，可以输入捕捉，每个定时器有四个外部 IO。 -
高级定时器
TIM1/8是一个 16 位的可以向上/下计数的定时器，
功能：可以定时，可以输出比较，可以输入捕捉，还可以有三相电机互补输出信号，每个定时器有 8 个外部 IO。
TIM_TimeBaseInitTypeDef 结构体内部成员
typedef struct
{
uint16_t TIM_Prescaler; //定时器预分频器
uint16_t TIM_CounterMode; //计数模式
uint16_t TIM_Period; // 定时器周期
uint16_t TIM_ClockDivision; // 时钟分频 7200
uint8_t TIM_RepetitionCounter; // 高级定时器 重复计数器
} TIM_TimeBaseInitTypeDef;
定时器中断服务函数
void TIMx_IRQHandler(void) //TIMx中断
{
if (TIM_GetITStatus(TIMx, TIM_IT_Update) != RESET) //检查TIMx更新中断发生与否
{
//do somethings
TIM_ClearITPendingBit(TIMx, TIM_IT_Update ); //清除TIMx更新中断标志
}
}
软件部分
MAIN.C
//--------------------------------------------------------------------------------------------------
// 包含的头文件 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
#include "sys.h"
#include "delay.h"
#include "UART.H"
//#include "USART.H"
#include "led.h"
#include "LCD.H"
#include "QDTFT_demo.h"
#include "Picture.h"
#include "key.h"
#include "oled.h"
#include "beep.h"
#include "timer.h"
//--------------------------------------------------------------------------------------------------
// 宏自定义声明 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
// 定义引用变量 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
//unsigned char num;
unsigned int time1 =0;
unsigned int timeCount1=0;
unsigned int timeflag1 =0;
unsigned int time2 =0;
unsigned int timeCount2=0;
unsigned int timeflag2 =0;
unsigned int time3 =0;
unsigned int timeCount3=0;
unsigned int timeflag3 =0;
unsigned int time4 =0;
unsigned int timeCount4=0;
unsigned int timeflag4 =0;
unsigned int Basictime =0;
unsigned int BasictimeCount=0;
unsigned int Basictimeflag =0;
//--------------------------------------------------------------------------------------------------
// 硬件端口定义 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
// 引用函数声明 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
void LED_TEST(void);
void Hareware_Iint(void);
void TFT_ShowTEST(void);
void Usart_Test(void);
void oled_test(void);
void Timer_Configure(void);
void GeneralTimer_Test(void);
void Basic_Timer_Test(void);
void Basic_GeneralTimer_Test(void);
//==================================================================================================
// 实现功能: 硬件初始化配置
// 函数说明: Hareware_Iint
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Hareware_Iint(void)
{
delay_init();
USART_Configure();//串口配置
Timer_Configure();//定时器配置
LED_Init(); //板载LED配置
KEY_Init(); //板载独立按键测试
OLED_Init(); // IIC 0.96 oled
Lcd_Init(); //ST7735 LCD配置
LCD_LED_SET; //设置背光
Lcd_Clear(WHITE); //清屏
BEEP_Init(); //蜂鸣器配置
}
//==================================================================================================
// 实现功能: LED测试函数
// 函数说明: PB5 LED0 PE5 LED1
// 函数备注: 板载LED 正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void LED_TEST(void)
{
LED0=0;
delay_ms(500);
LED0=1;
delay_ms(500);
LED1=0;
delay_ms(500);
LED1=1;
delay_ms(500);
}
//==================================================================================================
// 实现功能: TFT_ShowTEST测试函数
// 函数说明:
// 函数备注: ST7735 TFTLCD 测试正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TFT_ShowTEST(void)
{
Redraw_Mainmenu();
Num_Test();
Font_Test();
Color_Test();
TFT_ShowImage(gImage_qq);
Lcd_Clear(WHITE); //清屏
TFT_ShowASCII_08x16(0,8,'&',Red,White);
delay_ms(1000);
TFT_ShowString_16x16(16,16,"By delehub",Red,White);
delay_ms(1000);
TFT_ShowNumber_SignedInteger_16x16(16,32,1234,5,Red,White);
delay_ms(1000);
TFT_ShowNumber_Float_16x16(0,48,123.56,4,3,Red,White);
delay_ms(1000);
TFT_ShowString_16x16(16,60,"By 2020-11-5",Red,White);
delay_ms(1000);
TFT_ShowString_16x16(0,90,"stm32 tft test ",Red,White);
delay_ms(1000);
}
//==================================================================================================
// 实现功能: Usart_Test测试函数
// 函数说明: 串口配置测试函数 STM32F103ZET6 5个串口
// 函数备注: USART1 USART2 USART3 UART4 UART5
// TX端口 PA9 PA2 PB10 PC10 PC12
// RX端口 PA10 PA3 PB11 PC11 PD2
// 串口1~5 测试正常 打印效果正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Usart_Test(void)
{
#if 0
USART_SendString(USART1,"usart1 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,0,"usart1 test",Red,White);
#endif
#if 0
USART_SendString(USART2,"usart2 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,16,"usart2 test",Red,White);
#endif
#if 0
USART_SendString(USART3,"usart3 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,32,"usart3 test",Red,White);
#endif
#if 0
USART_SendString(UART4,"uart4 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,48,"uart4 test",Red,White);
#endif
#if 0
USART_SendString(UART5,"uart5 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,54,"uart5 test",Red,White);
#endif
}
//==================================================================================================
// 实现功能: oled_test测试函数
// 函数说明: 采用软件IIC 进行配置 SDA PB9 SCL PB10
// 函数备注: 测试正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void oled_test(void)
{
OLED_ShowChar_08x16(0,0,'@');
OLED_ShowChar_08x16(16,0,'&');
OLED_ShowNumber_SignedInteger_06x08(0,2,1234,5);
OLED_ShowNumber_UnsignedInteger_06x08(48,2,1234,5);
OLED_ShowNumber_Float_06x08(0,4,123.46,3,3);
OLED_ShowString_06x08(32,0,"oled");
OLED_ShowCHinese(0,6,0);
OLED_ShowCHinese(16,6,1);
OLED_ShowCHinese(32,6,2);
OLED_ShowCHinese(48,6,3);
OLED_ShowCHinese(64,6,4);
// OLED_Clear();
}
//==================================================================================================
// 实现功能: Key_Test 按键测试函数
// 函数说明: KEY0 PE4 KEY1 PE3 KEY_WK_UP PA0
// 函数备注: KEY0_PRES 1 KEY1_PRES 1 WKUP_PRES 3
//----------------------------------------- ---------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Key_Test(void)
{
unsigned char key_value=0;
TFT_ShowString_16x16(0,0,"KEY:",Red,White);
key_value=KEY_Scan(0);
if(key_value==3)
{
TFT_ShowNumber_SignedInteger_16x16(60,0,key_value,2,Red,White);
USART_SendString(USART1,"key_value:3 \r\n");
}
if(key_value==2)
{
TFT_ShowNumber_SignedInteger_16x16(60,0,key_value,2,Red,White);
USART_SendString(USART1,"key_value:2 \r\n");
}
if(key_value==1)
{
TFT_ShowNumber_SignedInteger_16x16(60,0,key_value,2,Red,White);
USART_SendString(USART1,"key_value:1 \r\n");
}
}
void Timer_Configure(void)
{
/*定时器配置*/
BASIC_TIM_Init();
TIM5_Init(9999,7199);
TIM3_Int_Init(9999,7199);
TIM2_Int_Init(9999,7199);
TIM4_Int_Init(9999,7199);
}
//==================================================================================================
// 实现功能: 通用定时器定时器测试
// 函数说明: TIM2,3,4,5
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void GeneralTimer_Test(void)
{
if ( timeflag1 == 1 ) // TIM5
{
timeflag1 = 0;
timeCount1++;
LED1=!LED1;
if (timeCount1 == 60)
{
timeCount1=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,32,timeCount1,2,Blue1,White);
}
if ( timeflag2 == 1 ) //TIM3
{
timeflag2 = 0;
timeCount2++;
if (timeCount2 == 60)
{
timeCount2=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,60,timeCount2,2,Blue1,White);
}
if ( timeflag3 == 1 ) //TIM2
{
timeflag3 = 0;
timeCount3++;
if (timeCount3 == 60)
{
timeCount3=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,90,timeCount3,2,Green,White);
}
if ( timeflag4 == 1 ) //TIM4
{
timeflag4 = 0;
timeCount4++;
if (timeCount4 == 60)
{
timeCount4=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,120,timeCount4,2,Green,White);
}
}
//==================================================================================================
// 实现功能: 基本定时器定时器测试
// 函数说明: TIM6,7
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Basic_Timer_Test(void)
{
if ( Basictime == 1000 ) /* 1000 * 1 ms = 1s 时间到 */
{
Basictime = 0;
BasictimeCount++;
if (BasictimeCount == 60)
{
BasictimeCount=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,140,BasictimeCount,2,Black,White);
}
}
//==================================================================================================
// 实现功能: 定时器定时 1s 测试
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Basic_GeneralTimer_Test(void)
{
GeneralTimer_Test();//通用定时器定时器测试
Basic_Timer_Test();//基本定时器定时器测试
}
//==================================================================================================
// 实现功能: 主函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
int main(void)
{
Hareware_Iint();
TFT_ShowString_16x16(0,0,"stm32 timertest",Magenta,White);
TFT_ShowString_16x16(0,32,"timeCount1 ",Blue1,White);
TFT_ShowString_16x16(0,60,"timeCount2 ",Red,White);
TFT_ShowString_16x16(0,90,"timeCount3 ",Red,White);
TFT_ShowString_16x16(0,120,"timeCount4",Red,White);
TFT_ShowString_16x16(0,140,"Basictime",Magenta,White);
while(1)
{
Basic_GeneralTimer_Test();
}
}
timer.c
#include "timer.h"
//==================================================================================================
// 实现功能: 定时器1 初始化函数
// 函数说明: 高级定时器 TIM1 TIM8
// 函数备注: 定时，输出比较，输入捕捉，有三相电机互补输出信号，每个定时器有8个外部IO。
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TIM1_Int_Init(u16 arr, u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
TIM_TimeBaseStructure.TIM_Period = arr;
TIM_TimeBaseStructure.TIM_Prescaler = psc;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE );
NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM1, ENABLE);
}
void TIM2_Int_Init(u16 arr, u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //时钟使能
TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值 计数到5000为500ms
TIM_TimeBaseStructure.TIM_Prescaler =psc; //设置用来作为TIMx时钟频率除数的预分频值 10Khz的计数频率
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE ); //使能指定的TIM3中断,允许更新中断
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; //TIM3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
TIM_Cmd(TIM2, ENABLE); //使能TIMx
}
//=================================================================================================
// 实现功能: 定时器3 初始化函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TIM3_Int_Init(u16 arr, u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //时钟使能
//RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
//定时器TIM3初始化
TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值
TIM_TimeBaseStructure.TIM_Prescaler = psc; //设置用来作为TIMx时钟频率除数的预分频值
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根据指定的参数初始化TIMx的时间基数单位
// //pwm 初始化
// TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;
// TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
// TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;
// TIM_OC3Init(TIM3,&TIM_OCInitStructure);
// TIM_OC3PreloadConfig(TIM3,TIM_OCPreload_Enable);
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE );
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
TIM_Cmd(TIM3, ENABLE);
}
//==================================================================================================
// 实现功能: 定时器4 初始化函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TIM4_Int_Init(u16 arr, u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //时钟使能
//定时器TIM4初始化
TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值
TIM_TimeBaseStructure.TIM_Prescaler = psc; //设置用来作为TIMx时钟频率除数的预分频值
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //根据指定的参数初始化TIMx的时间基数单位
TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE ); //使能指定的TIM4中断,允许更新中断
//中断优先级NVIC设置
NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn; //TIM4中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //初始化NVIC寄存器
TIM_Cmd(TIM4, ENABLE); //使能定时器4
}
//==================================================================================================
// 实现功能: 定时器5 初始化函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TIM5_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); //时钟使能
TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值 计数到5000为500ms
TIM_TimeBaseStructure.TIM_Prescaler =psc; //设置用来作为TIMx时钟频率除数的预分频值 10Khz的计数频率
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
TIM_ITConfig(TIM5,TIM_IT_Update,ENABLE ); //使能指定的TIM3中断,允许更新中断
NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn; //TIM3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
TIM_Cmd(TIM5, ENABLE); //使能TIMx
}
//==================================================================================================
// 函数功能: TIME6,7 基本定时器
// 函数标记: 内设驱动函数
// 函数说明:
//--------------------------------------------------------------------------------------------------
// 输入参量: 无
// 输出参量: 无
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
// 中断优先级配置
static void BASIC_TIM_NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
// 设置中断组为0
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
// 设置中断来源
NVIC_InitStructure.NVIC_IRQChannel = BASIC_TIM_IRQ ;
// 设置主优先级为 0
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
// 设置抢占优先级为3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/*
* 注意：TIM_TimeBaseInitTypeDef结构体里面有5个成员，TIM6和TIM7的寄存器里面只有
* TIM_Prescaler和TIM_Period，所以使用TIM6和TIM7的时候只需初始化这两个成员即可，
* 另外三个成员是通用定时器和高级定时器才有.
*-----------------------------------------------------------------------------
*typedef struct
*{ TIM_Prescaler 都有
* TIM_CounterMode TIMx,x[6,7]没有，其他都有
* TIM_Period 都有
* TIM_ClockDivision TIMx,x[6,7]没有，其他都有
* TIM_RepetitionCounter TIMx,x[1,8,15,16,17]才有
*}TIM_TimeBaseInitTypeDef;
*-----------------------------------------------------------------------------
*/
static void BASIC_TIM_Mode_Config(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
// 开启定时器时钟,即内部时钟CK_INT=72M
BASIC_TIM_APBxClock_FUN(BASIC_TIM_CLK, ENABLE);
// 自动重装载寄存器的值，累计TIM_Period+1个频率后产生一个更新或者中断
TIM_TimeBaseStructure.TIM_Period = BASIC_TIM_Period;
// 时钟预分频数为
TIM_TimeBaseStructure.TIM_Prescaler= BASIC_TIM_Prescaler;
// 时钟分频因子 ，基本定时器没有，不用管
//TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;
// 计数器计数模式，基本定时器只能向上计数，没有计数模式的设置
//TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
// 重复计数器的值，基本定时器没有，不用管
//TIM_TimeBaseStructure.TIM_RepetitionCounter=0;
// 初始化定时器
TIM_TimeBaseInit(BASIC_TIM, &TIM_TimeBaseStructure);
// 清除计数器中断标志位
TIM_ClearFlag(BASIC_TIM, TIM_FLAG_Update);
// 开启计数器中断
TIM_ITConfig(BASIC_TIM,TIM_IT_Update,ENABLE);
// 使能计数器
TIM_Cmd(BASIC_TIM, ENABLE);
}
void BASIC_TIM_Init(void)
{
BASIC_TIM_NVIC_Config();
BASIC_TIM_Mode_Config();
}
//==================================================================================================
// 实现功能: 定时器1 中断服务函数函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TIM1_UP_IRQHandler(void)
{
if(TIM_GetITStatus(TIM1, TIM_IT_Update) != RESET)
{
}
TIM_ClearFlag(TIM1, TIM_IT_Update );
}
//==================================================================================================
// 实现功能: 定时器1 中断服务函数函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
extern unsigned int time3;
extern unsigned int timeflag3;
void TIM2_IRQHandler(void)
{
if(TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
{
TIM_ClearITPendingBit(TIM2, TIM_FLAG_Update);
time3++;
timeflag3=1;
}
}
//==================================================================================================
// 实现功能: 定时器3 中断服务函数函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
extern unsigned int time2;
extern unsigned int timeflag2;
void TIM3_IRQHandler(void) //TIM3中断
{
if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET) //检查指定的TIM中断发生与否:TIM 中断源
{
TIM_ClearITPendingBit(TIM3, TIM_IT_Update ); //清除TIMx的中断待处理位:TIM 中断源
time2++;
timeflag2=1;
}
}
//==================================================================================================
// 实现功能: 定时器4 中断服务函数函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
extern unsigned int time4;
extern unsigned int timeflag4;
void TIM4_IRQHandler(void) //TIM4中断
{
if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET) //检查TIM4更新中断发生与否
{
TIM_ClearITPendingBit(TIM4, TIM_IT_Update ); //清除TIM4更新中断标志
time4++;
timeflag4=1;
}
}
//==================================================================================================
// 实现功能: 定时器5 中断服务函数函数
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
extern unsigned int time1;
extern unsigned int timeflag1;
void TIM5_IRQHandler(void) //TIM3中断
{
if (TIM_GetITStatus(TIM5, TIM_IT_Update) != RESET) //检查指定的TIM中断发生与否:TIM 中断源
{
TIM_ClearITPendingBit(TIM5, TIM_IT_Update ); //清除TIMx的中断待处理位:TIM 中断源
time1++;
timeflag1=1;
}
}
//==================================================================================================
// 实现功能: 定时器6,7 中断服务函数函数
// 函数说明: 基本定时器6，7
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
extern unsigned int Basictime;
void BASIC_TIM_IRQHandler (void)
{
if ( TIM_GetITStatus( BASIC_TIM, TIM_IT_Update) != RESET )
{
TIM_ClearITPendingBit(BASIC_TIM , TIM_FLAG_Update);
Basictime++;
}
}
timer.h
#ifndef __TIMER_H
#define __TIMER_H
#include "sys.h"
/********************基本定时器TIM参数定义，只限TIM6、7************/
#define BASIC_TIM6 // 如果使用TIM7，注释掉这个宏即可
#ifdef BASIC_TIM6 // 使用基本定时器TIM6
#define BASIC_TIM TIM6
#define BASIC_TIM_APBxClock_FUN RCC_APB1PeriphClockCmd
#define BASIC_TIM_CLK RCC_APB1Periph_TIM6
#define BASIC_TIM_Period (1000-1)
#define BASIC_TIM_Prescaler 71
#define BASIC_TIM_IRQ TIM6_IRQn
#define BASIC_TIM_IRQHandler TIM6_IRQHandler
#else // 使用基本定时器TIM7
#define BASIC_TIM TIM7
#define BASIC_TIM_APBxClock_FUN RCC_APB1PeriphClockCmd
#define BASIC_TIM_CLK RCC_APB1Periph_TIM7
#define BASIC_TIM_Period 1000-1
#define BASIC_TIM_Prescaler 71
#define BASIC_TIM_IRQ TIM7_IRQn
#define BASIC_TIM_IRQHandler TIM7_IRQHandler
#endif
void TIM1_Int_Init(u16 arr,u16 psc);
void TIM2_Int_Init(u16 arr,u16 psc);
void TIM3_Int_Init(u16 arr,u16 psc);
void TIM4_Int_Init(u16 arr,u16 psc);
void TIM5_Init(u16 arr,u16 psc);
static void BASIC_TIM_Mode_Config(void);
void BASIC_TIM_Init(void);
#endif