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基于STM32步進(jìn)電機(jī)調(diào)節(jié)
單片機(jī)源程序如下:
- #include "led.h"
- #include "delay.h"
- #include "sys.h"
- #include "usart.h"
- #include "master_slave.h"
- #include "stm32f10x_tim.h"
- //#include "key.h"
- //#include "timer.h"
- int main(void)
- {
- delay_init(); //延時(shí)函數(shù)初始化
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //設(shè)置NVIC中斷分組2:2位搶占優(yōu)先級(jí),2位響應(yīng)優(yōu)先級(jí)
- uart_init(115200); //串口初始化為115200
- LED_Init(); //LED端口初始化
-
- LED0=0;
- TIM3_CH1_init();
- delay_ms(200);
-
-
- while(1)
- {
- LED0=1;
- TIM2_TIM3_PWM(2000, 12); //每次少10個(gè)脈沖
- delay_ms(200);
-
- LED0=0;
- TIM2_TIM3_PWM(2000, 25); //每次少10個(gè)脈沖
- delay_ms(250);
-
- LED0=1;
- TIM2_TIM3_PWM(2000, 16); //每次少10個(gè)脈沖
- delay_ms(100);
-
- LED0=0;
- TIM2_TIM3_PWM(2000, 35); //每次少10個(gè)脈沖
- delay_ms(150);
-
- }
- }
復(fù)制代碼- #include "master_slave.h"
- #include "stm32f10x.h"
- /**TIM2的通道1 使用單脈沖模式 TIM2_ch1_ETR:A0
- **TIM3使用門控模式輸出PWM TIM3_ch1 :A6
- TIM2per、TIM3per: ARR重裝值 (無關(guān)緊要,后面會(huì)在此賦值)
- Compare1: 比較捕獲1的預(yù)裝載值 (固定占空比所以,所以此參數(shù)不要了) */
- void Motor_Init(u16 TIM2per, u16 TIM3per)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStruct;
- TIM_OCInitTypeDef TIM_OCInitStruct;
- GPIO_InitTypeDef GPIO_InitStruct;
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2|RCC_APB1Periph_TIM3,ENABLE); // RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO,ENABLE); // RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
- GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP; //TIM2_ch1_ETR:A0 , TIM3_ch1 :A6
- GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_6;
- GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOA,&GPIO_InitStruct);
-
- /**************TIM2工作在單脈沖模式下********************/
- TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
- TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInitStruct.TIM_Prescaler = 7200; //預(yù)分配值,每100u計(jì)數(shù)一次
- TIM_TimeBaseInitStruct.TIM_Period = TIM2per; //重載值
- TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStruct);
- TIM_SelectOnePulseMode(TIM2,TIM_OPMode_Single);//設(shè)置TIM2在單脈沖模式下 , 單次觸發(fā)
- TIM_OC1PreloadConfig(TIM2,TIM_OCPreload_Enable);// 使能TIM2的通道1預(yù)裝載寄存器
- TIM_SelectOutputTrigger(TIM2,TIM_TRGOSource_OC1Ref); //脈沖輸出通道1
- TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM2;//
- TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
- TIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_High;
- TIM_OCInitStruct.TIM_Pulse = TIM2per/2;//比較捕獲1的預(yù)裝載值 占空比50%
- TIM_OC1Init(TIM2,&TIM_OCInitStruct);
- TIM_Cmd(TIM2,DISABLE);//先不使能TIM2
- /****************TIM3再?gòu)哪J降拈T控模式下的PWM輸出模式**************/
- TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
- TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInitStruct.TIM_Prescaler = 720;//預(yù)分頻值,10us技術(shù)一次
- TIM_TimeBaseInitStruct.TIM_Period = TIM3per;//重載值
- TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStruct);
-
- TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Gated);//TIM3為門控模式
- TIM_SelectMasterSlaveMode(TIM3,TIM_MasterSlaveMode_Enable);
- TIM_SelectInputTrigger(TIM3,TIM_TS_ITR1);//內(nèi)部從TIM2觸發(fā)
-
- TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM2;
- TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
- TIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_High;
- TIM_OCInitStruct.TIM_Pulse = TIM3per/2;//比較捕獲1的預(yù)裝載值 占空比50%
- TIM_OC1Init(TIM3,&TIM_OCInitStruct);
- TIM_Cmd(TIM3,ENABLE);
- }
- /*****設(shè)置PWM的輸出,精確輸出多少頻率多少個(gè)數(shù)的脈沖************/
- /*****Cycle:周期,單位(us)
- ******Pulse_Num:脈沖個(gè)數(shù)(最大3200)
- ****改變TIM3的 ( 重裝載值 ) 改變脈沖頻率,固定占空比為50%
- ****改變TIM2的 ( 預(yù)分頻器+重裝載值 ) 改變脈沖個(gè)數(shù) */
- void TIM2_TIM3_PWM(u16 Cycle, u16 Pulse_Num)
- {
- u16 TIM3per = 0;
- u32 Time = 0;
- Time = Cycle * Pulse_Num;
- Time /= 100; //預(yù)分頻為7200,100us 技術(shù)一次
- TIM3per = Cycle/10; //預(yù)分頻為720 ,10us 技術(shù)一次
- TIM_SetAutoreload(TIM2, Time-1); //設(shè)置TIM2的重裝載值
- TIM_SetAutoreload(TIM3, TIM3per-1); //設(shè)置TIM3的重裝載值
- TIM_SetCompare1(TIM3,TIM3per/2); //設(shè)置TIM3占空比為50%
- TIM_Cmd(TIM2,ENABLE);
- }
- void TIM3_CH1_init(void)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStruct;
- TIM_OCInitTypeDef TIM_OCInitStruct;
- GPIO_InitTypeDef GPIO_InitStruct;
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2|RCC_APB1Periph_TIM3,ENABLE); // RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO,ENABLE); // RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
- GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP; //TIM2_ch1_ETR:A0 , TIM3_ch1 :A6
- GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_6;
- GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOA,&GPIO_InitStruct);
-
- /**************TIM2工作在單脈沖模式下********************/
- TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
- TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInitStruct.TIM_Prescaler = 7200; //預(yù)分配值,每100u計(jì)數(shù)一次
- TIM_TimeBaseInitStruct.TIM_Period = 400; //重載值
- TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStruct);
- TIM_SelectOnePulseMode(TIM2,TIM_OPMode_Single);//設(shè)置TIM2在單脈沖模式下 , 單次觸發(fā)
- TIM_OC1PreloadConfig(TIM2,TIM_OCPreload_Enable);// 使能TIM2的通道1預(yù)裝載寄存器
- TIM_SelectOutputTrigger(TIM2,TIM_TRGOSource_OC1Ref); //脈沖輸出通道1
- TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM2;//
- TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
- TIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_High;
- TIM_OCInitStruct.TIM_Pulse = 200;//比較捕獲1的預(yù)裝載值 占空比50%
- TIM_OC1Init(TIM2,&TIM_OCInitStruct);
- TIM_Cmd(TIM2,DISABLE);//先不使能TIM2
- /****************TIM3再?gòu)哪J降拈T控模式下的PWM輸出模式**************/
- TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
- TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInitStruct.TIM_Prescaler = 720;//預(yù)分頻值,10us技術(shù)一次
- TIM_TimeBaseInitStruct.TIM_Period = 200;//重載值
- TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStruct);
-
- TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Gated);//TIM3為門控模式
- TIM_SelectMasterSlaveMode(TIM3,TIM_MasterSlaveMode_Enable);
- TIM_SelectInputTrigger(TIM3,TIM_TS_ITR1);//內(nèi)部從TIM2觸發(fā)
-
- TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM2;
- TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
- TIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_High;
- TIM_OCInitStruct.TIM_Pulse = 100; //比較捕獲1的預(yù)裝載值 占空比50%
- TIM_OC1Init(TIM3,&TIM_OCInitStruct);
- TIM_Cmd(TIM3,ENABLE);
- }
- void Set_F_Pulse_Num(u16 Cycle, u16 Pulse_Num)
- {
- }
復(fù)制代碼
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頻率 脈沖可控,驅(qū)動(dòng)步進(jìn)電機(jī).rar
(2.19 KB, 下載次數(shù): 19)
2018-8-17 22:22 上傳
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