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PID学习笔记03(硬件驱动基础代码测试)

  • 2026-11-12 08:39:19
PID学习笔记03(硬件驱动基础代码测试)
停更了好几天,设备到位了,继续学习研究。
买了一套江协科技的练习模型。
这个模型主要用来练习PWM电机闭环控制,最终可以实现单垂臂倒立摆。
开始测试
1. OLED测试
main.c主程序如下
/*OLED测试*//*下载此段程序后,OLED屏幕上会显示一些测试内容*/int main(void){/*模块初始化*/OLED_Init();	//OLED初始化/*显示测试字符串*/OLED_ShowString(0, 0, "Hello,世界。", OLED_8X16);/*显示测试浮点数*/OLED_ShowFloatNum(0, 16, 12345.76, 5,2, OLED_8X16);/*OLED_Printf格式化打印测试*/OLED_Printf(0, 32, OLED_8X16, "Num=%d", 666888);/*调用OLED功能函数后,必须调用OLED_Update,否则OLED将不会收到任何数据*/OLED_Update();while (1)	{	}}
测试程序中的参数可以任意修改,用到的程序模块如下
OLED.c为自定义函数库,可以在main.c主程序中直接调用

OLED_Data.c 为字库,自定义的图片和汉字可以用字模软件生成字模,复制到这里,然后就可以在main.c主程序中写程序进行显示。

测试效果如下。
2.led测试
利用STM32开发板自带的led工作指示灯进行功能测试
测试程序点亮和熄灭,交替0.5s
main.c主程序如下
/*LED测试*//*下载此段程序后,STM32板载的LED会以1s为周期闪烁*/int main(void){/*模块初始化*/LED_Init();				//LED初始化,此LED为STM32板载连接在PC13端口的LEDwhile (1)	{LED_ON();			//LED点亮Delay_ms(500);		//延时500msLED_OFF();			//LED熄灭Delay_ms(500);		//延时500msLED_Turn();			//LED亮灭状态取反Delay_ms(500);		//延时500msLED_Turn();			//LED亮灭状态取反Delay_ms(500);		//延时500ms	}}
用到的模块如下
使用的是C13端口
测试效果如下
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3. 按键测试
采用非阻塞式写法编写测试程序
main.c主程序如下
/*定时中断和非阻塞式按键测试*//*下载此段程序后,OLED显示变量i会1ms自增一次*//*按下K1按键,OLED显示变量j加1,按下K2,j减1,按下K3,j加10,按下K4,j减10*/uint16_t i;uint16_t j;uint8_t KeyNum;intmain(void){/*模块初始化*/OLED_Init();		//OLED初始化Key_Init();			//非阻塞式按键初始化Timer_Init();		//定时器初始化,1ms定时中断一次while (1)	{		KeyNum = Key_GetNum();		//获取键码if (KeyNum == 1)			//如果K1按下		{			j ++;					//变量j加1		}if (KeyNum == 2)			//如果K2按下		{			j --;					//变量j减1		}if (KeyNum == 3)			//如果K3按下		{			j += 10;				//变量j加10		}if (KeyNum == 4)			//如果K4按下		{			j -= 10;				//变量j减10		}/*OLED显示*/OLED_Printf(0, 0, OLED_8X16, "i:%05d", i);		//显示变量iOLED_Printf(0, 16, OLED_8X16, "j:%05d", j);		//显示变量j/*OLED更新*/OLED_Update();	}}voidTIM1_UP_IRQHandler(void){if (TIM_GetITStatus(TIM1, TIM_IT_Update) == SET)	{/*定时中断函数1ms自动执行一次*/		i ++;			//测试变量i自增Key_Tick();		//调用按键模块的Tick函数,用于驱动按键模块工作TIM_ClearITPendingBit(TIM1, TIM_IT_Update);	}}
用到的程序模块
key.c 自定义开关程序,Timer.c为定时器,用于调用定时中断程序
使用TIM1进行定时中断
这里修改自增分频值,1ms自增1
四个按键分别定义的是PA11、PA12、PB10、PB11
四个按键每次按下,分别+1,-1,+10,-10
测试效果如下
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4. 旋钮电位器测试
main.c主程序如下
/*旋钮电位器测试*//*下载此段程序后,分别旋转4个电位器旋钮,OLED显示的4个AD值会对应变化*/int main(void){/*模块初始化*/OLED_Init();		//OLED初始化RP_Init();			//电位器旋钮初始化while (1)	{/*OLED显示*/OLED_Printf(0, 0, OLED_8X16, "RP1:%04d", RP_GetValue(1));		//显示电位器旋钮RP1的AD值OLED_Printf(0, 16, OLED_8X16, "RP2:%04d", RP_GetValue(2));		//显示电位器旋钮RP2的AD值OLED_Printf(0, 32, OLED_8X16, "RP3:%04d", RP_GetValue(3));		//显示电位器旋钮RP3的AD值OLED_Printf(0, 48, OLED_8X16, "RP4:%04d", RP_GetValue(4));		//显示电位器旋钮RP4的AD值/*OLED更新*/OLED_Update();	}}
用到的程序模块
开启PA2、PA3、PA4、PA5,用于四个电位器旋钮。
用ADC2。
测试
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5. 直流电机PWM测试
main.c主程序如下
/*电机测试*//*下载此段程序后,按下K1,电机速度增加,按下K2,电机速度减小,按下K3,电机停止*/uint8_t KeyNum;int16_t PWM;intmain(void){/*模块初始化*/OLED_Init();		//OLED初始化Key_Init();			//非阻塞式按键初始化Motor_Init();		//电机初始化Timer_Init();		//定时器初始化,1ms定时中断一次while (1)	{		KeyNum = Key_GetNum();		//获取键码if (KeyNum == 1)			//如果K1按下		{			PWM += 10;				//PWM变量加10if (PWM > 100) {PWM = 100;}		//加到100后不再增加		}if (KeyNum == 2)			//如果K2按下		{			PWM -= 10;				//PWM变量减10if (PWM < -100) {PWM = -100;}	//减到-100后不再减小		}if (KeyNum == 3)			//如果K3按下		{			PWM = 0;				//PWM变量归0		}Motor_SetPWM(PWM);			//电机设定PWM,将PWM变量的值给电机OLED_Printf(0, 0, OLED_8X16, "PWM:%+04d", PWM);		//OLED显示PWM变量值OLED_Update();				//OLED更新	}}voidTIM1_UP_IRQHandler(void){if (TIM_GetITStatus(TIM1, TIM_IT_Update) == SET)	{/*定时中断函数1ms自动执行一次*/Key_Tick();		//调用按键模块的Tick函数,用于驱动按键模块工作TIM_ClearITPendingBit(TIM1, TIM_IT_Update);	}}
用到下面四个模块
PWM.c中,使用TIM2时钟定时中断
电机PWM信号使用PA0引脚

MOTOR.c中

方向控制引脚,使用PB12和PB13输出信号
main.c中,编写测试程序
使用按键控制电机增速和减速测试
测试
使用的是外接板子上的12V外供电,USB接口的3.3V电源摘了再进行测试
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6. 编码器测试
main.c主程序如下
用于测量电机的实际转速和位置
/*编码器测试*//*下载此段程序后,手动旋转电机编码器,OLED上会显示旋转速度和位置*/int16_t Speed;int16_t Location;intmain(void){/*模块初始化*/OLED_Init();		//OLED初始化Encoder_Init();		//编码器初始化Timer_Init();		//定时器初始化,1ms定时中断一次while (1)	{OLED_Printf(0, 0, OLED_8X16, "Speed:%+05d", Speed);			//OLED显示速度OLED_Printf(0, 16, OLED_8X16, "Location:%+05d", Location);	//OLED显示位置OLED_Update();		//OLED更新	}}voidTIM1_UP_IRQHandler(void){staticuint16_t Count;		//定义静态变量,默认初始化为0,函数结束后,仍保留值和存储空间if (TIM_GetITStatus(TIM1, TIM_IT_Update) == SET)	{/*定时中断函数1ms自动执行一次*/Count ++;				//使用Count变量计次进行分频if (Count >= 40)		//计次到达40后,进入一次if,即40ms进一次if		{Count = 0;			//Count清零,以便下一个周期的计数/*获取编码器的计次值增量,即为速度*//*此Encoder_Get函数,可以获取两次读取编码器的计次值增量*//*此Speed值正比于速度,所以可以表示速度,但它的单位并不是速度的标准单位*//*此处每隔40ms获取一次计次值增量,电机旋转一周的计次值增量约为408*//*因此如果想转换为标准单位,比如转/秒*//*则可将此句代码改成Speed = Encoder_Get() / 408.0 / 0.04;*//*注意Speed变量的类型改为float*/Speed = Encoder_Get();/*速度累加,即为位置*/Location += Speed;		}TIM_ClearITPendingBit(TIM1, TIM_IT_Update);	}}
使用下面模块
引脚设置的是PA6和PA7
使用TIM3定时器
测试如下
用手拨动电机驱动盘,会随着手指的旋动,电机的位置和速度会发生变化,编码器检测到这个变化,读取位置和速度值,然后进行百分数计算后,显示到OLED中
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7. 串口测试
测试流程,先读取旋钮电位器的数值,然后通过串口进行发送,
/*串口测试*//*下载此段程序后,分别旋转4个电位器旋钮,OLED显示的4个AD值会对应变化*//*同时这些值也会通过串口以文本格式发送出去*/uint16_t RP1, RP2, RP3, RP4;intmain(void){/*模块初始化*/OLED_Init();		//OLED初始化RP_Init();			//电位器旋钮初始化Serial_Init();		//串口初始化,波特率9600while (1)	{/*获取4个电位器旋钮的AD值*/		RP1 = RP_GetValue(1);		RP2 = RP_GetValue(2);		RP3 = RP_GetValue(3);		RP4 = RP_GetValue(4);/*OLED显示4个电位器旋钮的AD值*/OLED_Printf(0, 0, OLED_8X16, "RP1:%04d", RP1);OLED_Printf(0, 16, OLED_8X16, "RP2:%04d", RP2);OLED_Printf(0, 32, OLED_8X16, "RP3:%04d", RP3);OLED_Printf(0, 48, OLED_8X16, "RP4:%04d", RP4);/*OLED更新*/OLED_Update();/*使用串口格式化打印函数,将4个AD值通过串口发送出去*/Serial_Printf("%d,%d,%d,%d\r\n", RP1, RP2, RP3, RP4);//		/*延时10ms,避免发送过快*///		Delay_ms(10);	}}
使用TTL  usb串口工具接上电脑,读取四个电位器的实时数值
分别旋动四个旋钮电位器
观察串口助手的数值变化与OLED显示一致。
旋动旋钮1,RP1位置数值随即发生变化,串口助手也读取到相同的数值。

驱动程序代码如下

通过网盘分享的文件:PID学习笔记03(硬件驱动基础代码测试).zip

链接: https://pan.baidu.com/s/1D6BueDSkE353K65lWVcBTA?pwd=jdyk 提取码: jdyk

通过网盘分享的文件:串口助手.zip

链接: https://pan.baidu.com/s/1ZNNeRH96-S_gSb-_RiWkWA?pwd=b8x6 提取码: b8x6

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  1. CONNECT:[ UseTime:0.000676s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000884s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000438s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000329s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000562s ]
  6. SELECT * FROM `set` [ RunTime:0.000270s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000599s ]
  8. SELECT * FROM `article` WHERE `id` = 579346 LIMIT 1 [ RunTime:0.000423s ]
  9. UPDATE `article` SET `lasttime` = 1794485873 WHERE `id` = 579346 [ RunTime:0.001400s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000315s ]
  11. SELECT * FROM `article` WHERE `id` < 579346 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000389s ]
  12. SELECT * FROM `article` WHERE `id` > 579346 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000456s ]
  13. SELECT * FROM `article` WHERE `id` < 579346 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000685s ]
  14. SELECT * FROM `article` WHERE `id` < 579346 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000598s ]
  15. SELECT * FROM `article` WHERE `id` < 579346 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000537s ]
0.092361s