STM32正交增量编码器
单片机源程序如下（外部中断法）:
- #include "STM32F1.h"
- u16 Parameter = 20; //输入编码器线数
- u16 Count,Old_Temp,Temp;
- int main(void)
- {
- delay_init(); //延时函数初始化
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
- uart_init(115200); //串口初始化为115200
- LCD_Init(); //初始化LCD
- Encode_Init();
- POINT_COLOR=BLUE; //字体颜色
- LCD_ShowString(75,150,200,16,16,"Count:");
- LCD_ShowNum(125,150,0,1,16);
- LCD_ShowNum(135,150,0,1,16);
- LCD_ShowNum(145,150,0,1,16);
- LCD_ShowNum(155,150,0,1,16);
- while(1)
- {
- Old_Temp = Temp; //获取先前数值
- Temp = Count; //获取当前数值
- if(Old_Temp != Count) //如果先前的计数值与当前计数值不相等，说明编码器已转动打印当前数值
- {
- printf("数值 = %d\n",Count); //串口打印数值*/
- LCD_ShowNum(125,150,Count/1000,1,16); //液晶显示数值
- LCD_ShowNum(135,150,(Count%1000)/100,1,16);
- LCD_ShowNum(145,150,(Count%100)/10,1,16);
- LCD_ShowNum(155,150,Count%10,1,16);
- }
- }
- }
查询法：
- #include "STM32F1.h"
- u16 Parameter = 512; //输入编码器线数
- u16 Count,Old_Count;
- int main(void)
- {
- delay_init(); //延时函数初始化
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
- uart_init(115200); //串口初始化为115200
- LCD_Init(); //初始化LCD
- TIM4_Init(); //初始化TIM4为编码器借口模式
- POINT_COLOR=BLUE; //字体颜色
- LCD_ShowString(75,150,200,16,16,"Count:");
- LCD_ShowNum(125,150,0,1,16);
- LCD_ShowNum(135,150,0,1,16);
- LCD_ShowNum(145,150,0,1,16);
- LCD_ShowNum(155,150,0,1,16);
- while(1)
- {
- Old_Count = Count; //获取先前的计数值
- Count = TIM4->CNT; //获取编码器当前数值
- if(Old_Count != Count) //如果先前的计数值与当前计数值不相等，说明编码器已转动打印当前数值
- {
- printf("数值 = %d\n",Count); //串口打印数值
- LCD_ShowNum(125,150,Count/1000,1,16); //液晶显示数值
- LCD_ShowNum(135,150,(Count%1000)/100,1,16);
- LCD_ShowNum(145,150,(Count%100)/10,1,16);
- LCD_ShowNum(155,150,Count%10,1,16);
- }
- }
- }
所有资料51hei提供下载:
STM32正交编码器_外部中断.rar
(301.98 KB, 下载次数: 112)
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