#include "encode.h"
#include "sys.h"
#include "delay.h"
#include "lcd.h"
#include "string.h"
#include "stdio.h"
#include "usart.h"
#include "led.h"
//编码器
//定时器3通道1和2输入捕获配置
void Encoder_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
  TIM_ICInitTypeDef TIM_ICInitStructure;
  
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//使能TIM3时钟
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//使能GPIOA时钟
  
//配置IO口PA6和PA7
  GPIO_StructInit(&GPIO_InitStructure);//复位GPIO
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  
  //配置定时器3
  TIM_DeInit(TIM3);
  TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
  TIM_TimeBaseStructure.TIM_Prescaler = 0x0;  //不分频
  TIM_TimeBaseStructure.TIM_Period = 500*4;  //计数装载值 编码器线数500
  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;   
  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

  //配置编码器模式
  TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12,TIM_ICPolarity_Rising,
                            TIM_ICPolarity_Rising);
TIM_ICStructInit(&TIM_ICInitStructure);
  TIM_ICInitStructure.TIM_ICFilter = 6;//配置输入滤波器
  TIM_ICInit(TIM3, &TIM_ICInitStructure);
  
  TIM3->CNT = 0;//计数器归零
  TIM_Cmd(TIM3, ENABLE);//使能定时器
}
/*********************************************************/
//输出角度
u8 Show_Data[30]={0};
void Printf_encode_angle(void)
{
// float Theta=0;
TIM3->CNT = 0;
delay_ms(500);
// Theta=(s16)(TIM3->CNT)*0.18;//计算转过的角度0.18=360/500/4
sprintf((char*)Show_Data, "ROTARY ANGLE:%d",(s16)(TIM3->CNT) );
LCD_ShowString(25, 260, 320, 16, 16, Show_Data);
}


编码器放着不去转动它，计数器的数都在不断变化，想知道到底是哪里出了问题