173 lines
5.0 KiB
C
173 lines
5.0 KiB
C
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#include "timer.h"
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#include "led.h"
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//////////////////////////////////////////////////////////////////////////////////
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>ѧϰʹ<CFB0>ã<EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD>;
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//ALIENTEK STM32F407<30><37><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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//<2F><>ʱ<EFBFBD><CAB1> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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//<2F><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>@ALIENTEK
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳:www.openedv.com
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:2014/5/4
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//<2F>汾<EFBFBD><E6B1BE>V1.0
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//<2F><>Ȩ<EFBFBD><C8A8><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؾ<EFBFBD><D8BE><EFBFBD>
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//Copyright(C) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿƼ<D3BF><C6BC><EFBFBD><EFBFBD><EFBFBD>˾ 2014-2024
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//All rights reserved
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//////////////////////////////////////////////////////////////////////////////////
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void TIM2_Int_Init(u16 arr,u16 psc)
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE); ///ʹ<><CAB9>TIM3ʱ<33><CAB1>
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TIM_TimeBaseInitStructure.TIM_Period = arr; //<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
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TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ƶ
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TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //<2F><><EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD>ģʽ
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TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
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TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);//<2F><>ʼ<EFBFBD><CABC>TIM3
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TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>3<EFBFBD><33><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
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TIM_Cmd(TIM2,ENABLE); //ʹ<>ܶ<EFBFBD>ʱ<EFBFBD><CAB1>3
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NVIC_InitStructure.NVIC_IRQChannel=TIM2_IRQn; //<2F><>ʱ<EFBFBD><CAB1>3<EFBFBD>ж<EFBFBD>
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x01; //<2F><>ռ<EFBFBD><D5BC><EFBFBD>ȼ<EFBFBD>1
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NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x03; //<2F><><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>3
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NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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}
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u8 led_flag=0;
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u16 index=0;
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extern u16 real_dis_data[6];
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extern u16 real_dis_data_bak[6];
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extern u8 double_buffer_flag;
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//<2F><>ʱ<EFBFBD><CAB1>3<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void TIM2_IRQHandler(void)
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{
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char vcm_cmd[16];
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if(TIM_GetITStatus(TIM2,TIM_IT_Update)==SET) //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
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{
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#if 1
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if(led_flag == 0)
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{
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GPIO_SetBits(GPIOE, GPIO_Pin_0);
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led_flag = 1;
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TIM_ClearITPendingBit(TIM2,TIM_IT_Update); //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
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return;
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}
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if(led_flag == 1)
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{
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GPIO_ResetBits(GPIOE, GPIO_Pin_0);
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led_flag = 0;
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TIM_ClearITPendingBit(TIM2,TIM_IT_Update); //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
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return;
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}
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#endif
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#if 0
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sprintf(vcm_cmd,VCM_DISPLACE_CMD,real_dis_data[index]);
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usart_send(USART3, vcm_cmd);
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usart_send(USART3, START_MACRO_NUM);
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TIM_ClearITPendingBit(TIM2,TIM_IT_Update); //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
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return;
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#endif
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#if 0
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if(led_flag == 0)
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{
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sprintf(vcm_cmd,VCM_DISPLACE_CMD,real_dis_data[index]);
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usart_send(USART3, vcm_cmd);
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usart_send(USART3, START_MACRO_NUM);
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index++;
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TIM_ClearITPendingBit(TIM2,TIM_IT_Update); //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
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return;
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}
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if(led_flag == 1)
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{
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sprintf(vcm_cmd,VCM_DISPLACE_CMD,real_dis_data_bak[index]);
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usart_send(USART3, vcm_cmd);
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usart_send(USART3, START_MACRO_NUM);
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TIM_ClearITPendingBit(TIM2,TIM_IT_Update); //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
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return;
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}
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if(index > 199 && led_flag == 0)
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{
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index = 0;
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led_flag = 1;
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double_buffer_flag = 0;
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usart_send(USART1, "laishuju");
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}
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if(index > 199 && led_flag == 1)
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{
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index = 0;
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led_flag = 0;
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double_buffer_flag = 1;
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usart_send(USART1, "laishuju");
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}
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#endif
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}
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}
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//ͨ<>ö<EFBFBD>ʱ<EFBFBD><CAB1>3<EFBFBD>жϳ<D0B6>ʼ<EFBFBD><CABC>
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//arr<72><72><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>װֵ<D7B0><D6B5>
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//psc<73><63>ʱ<EFBFBD><CAB1>Ԥ<EFBFBD><D4A4>Ƶ<EFBFBD><C6B5>
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//<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>㷽<EFBFBD><E3B7BD>:Tout=((arr+1)*(psc+1))/Ft us.
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//Ft=<3D><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5>,<2C><>λ:Mhz
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//<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5>Ƕ<EFBFBD>ʱ<EFBFBD><CAB1>3!
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void TIM3_PWM_Init(u16 arr,u16 psc)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
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TIM_OCInitTypeDef TIM_OCInitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE); ///ʹ<><CAB9>TIM3ʱ<33><CAB1>
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE);
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GPIO_PinAFConfig(GPIOA,GPIO_PinSource6,GPIO_AF_TIM3);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
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GPIO_Init(GPIOA,&GPIO_InitStructure);
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GPIO_ResetBits(GPIOA, GPIO_Pin_6);
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TIM_TimeBaseInitStructure.TIM_Period = arr; //<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
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TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ƶ
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TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //<2F><><EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD>ģʽ
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TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
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TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);//<2F><>ʼ<EFBFBD><CABC>TIM3
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
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TIM_OCInitStructure.TIM_Pulse = 100;
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TIM_OC1Init(TIM3, &TIM_OCInitStructure);
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TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
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TIM_ARRPreloadConfig(TIM3,ENABLE);
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//TIM_Cmd(TIM3, ENABLE);
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}
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//<2F><>ʱ<EFBFBD><CAB1>3<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void TIM3_IRQHandler(void)
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{
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}
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