如题,使用stm32f103rct6,控制四个轮子的电机正反转分别为PC0-PC8,四个轮子的使能端为PA0,PA1,PA2,PA3(定时器2)(左前,左后,右前,右后),三个舵机在PB6,PB7,PB9(定时器4),使用范围在5-25之间,蓝牙接PC10,PC11,使用串口4,波特率为9600.
图片太大,发不上来。
单片机源程序如下:
- #include "stm32f10x.h"
- #include "pwm.h"
- #include "gpio.h"
- #include "delay.h"
- #include "system.h"
- #include "motor.h"
- #include "USART.h"
- #include "bluetooth.h"
- #include "duojipwm.h"
- #define KEY1 GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_8)
- #define KEY2 GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_9)
- int CMD=0x61;
- void USART3_Init(void);
- void GPIOdianji_Init(void);
- void TIM4_PWM_Init(u16 arr,u16 psc);
- int main(void){
- USART_Config();//串口
- GPIOdianji_Init();//电机引脚
- GENERAL_TIM_Init();//电机PWM初始化
- blueToothInit();//蓝牙初始化
- TIM4_PWM_Init(199,7199);
- TIM_SetCompare4(TIM4, 4);
- TIM_SetCompare1(TIM4, 5);
- TIM_SetCompare2(TIM4, 23);
- TIM_SetCompare3(TIM4, 13);
- while(1){
- //如果蓝牙断开,小车会一直在刹车状态
- if(BLUE_TOOTH_STATE != Bit_SET){
- stop();
- }
- if(KEY1==0)
- {
- forward();
- TIM_SetCompare1(TIM4,25);
- }
- if(KEY2==0)
- {
- stop();
- TIM_SetCompare1(TIM4,5);
- }
- // car_speed();
- }
- }
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- #include "duojipwm.h"
- #include "delay.h"
- void TIM4_PWM_Init(u16 arr,u16 psc)
- {
- //**结构体声明**//
- GPIO_InitTypeDef GPIO_InitStructure; //声明GPIO
- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; //声明定时器
- TIM_OCInitTypeDef TIM_OCInitStructure; //声明PWM通道
-
- //**时钟使能**//
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //使能定时器TIM4时钟
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //使能PB端口时钟
-
- //****//
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //LED0-->PB.6 端口配置
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度为50MHz
- GPIO_Init(GPIOB, &GPIO_InitStructure); //根据设定参数初始化GPIOB.6
- GPIO_SetBits(GPIOB,GPIO_Pin_6);
- //****//
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //LED0-->PB.7 端口配置
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度为50MHz
- GPIO_Init(GPIOB, &GPIO_InitStructure); //根据设定参数初始化GPIOB.7
- GPIO_SetBits(GPIOB,GPIO_Pin_7);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; //LED0-->PB.7 端口配置
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度为50MHz
- GPIO_Init(GPIOB, &GPIO_InitStructure); //根据设定参数初始化GPIOB.7
- GPIO_SetBits(GPIOB,GPIO_Pin_8);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //LED0-->PB.7 端口配置
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度为50MHz
- GPIO_Init(GPIOB, &GPIO_InitStructure); //根据设定参数初始化GPIOB.7
- GPIO_SetBits(GPIOB,GPIO_Pin_9);
- //初始化TIM3
- 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 = 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(TIM4, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
- //初始化TIM3 Channel1 PWM模式
- TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
- TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性高
- TIM_OC1Init(TIM4, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM3 OC1
-
- //初始化TIM3 Channel2 PWM模式
- TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
- TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性高
- TIM_OC2Init(TIM4, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM3 OC2
-
- TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
- TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性高
- TIM_OC3Init(TIM4, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM3 OC3
-
- TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
- TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性高
- TIM_OC4Init(TIM4, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM3 OC4
- TIM_OC1PreloadConfig(TIM4, TIM_OCPreload_Enable); //使能TIM4_CH1预装载寄存器
- TIM_OC2PreloadConfig(TIM4, TIM_OCPreload_Enable); //使能TIM4_CH2预装载寄存器
- TIM_OC3PreloadConfig(TIM4, TIM_OCPreload_Enable); //使能TIM4_CH3预装载寄存器
- TIM_OC4PreloadConfig(TIM4, TIM_OCPreload_Enable); //使能TIM4_CH4预装载寄存器
-
- TIM_Cmd(TIM4, ENABLE); //使能TIM4
- }
- //void pigupwm(void)
- //{
- // TIM_SetCompare1(TIM4,i);
- // delay_ms(500);
- //}
- //void dizuopwm(void)
- //{
- // TIM_SetCompare2(TIM4,i);
- // TIM_SetCompare3(TIM4,i);
- // delay_ms(500);
- //}
- //void bluepwm(void)
- //{
- // TIM_SetCompare4(TIM2,i);
- // delay_ms(500);
- //}
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