//==文件time1.h============================================================
#ifndef _TIME1_H_
#define _TIME1_H_
#include stm32f0xx.h
//========定義PWM的頻率================================================
#define DEF_PWMFRE DEF_PWMFRE_16K
#define DEF_PWMFRE_8K
8000
//計數周期值為48000000/8000=6000
#define DEF_PWMFRE_16K
16000
//計數周期值為48000000/16000=3000 0.02U/N
#define DEF_PWMFRE_20K
20000
//計數周期值為48000000/20000=2400
#define DEF_PWMFRE_25K
25000
//計數周期值為48000000/16000=1920
#define DEF_PWMFRE_30K
30000
//計數周期值為48000000/16000=1600
//========PWM1 2 3通道輸出使能位操作=====================================
#define PWMA_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC1E))
#define PWMA_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC1E))
#define PWMB_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC2E))
#define PWMB_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC2E))
#define PWMC_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC3E))
#define PWMC_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC3E))
#define PWMD_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC4E))
#define PWMD_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC4E))
#define PWMABC_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)(TIM_CCER_CC1E|TIM_CCER_CC2E|TIM_CCER_CC3E)))
//========PWM1 2 3通道互補輸出使能位操作=====================================
#define PWMAN_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC1NE))
#define PWMAN_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC1NE))
#define PWMBN_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC2NE))
#define PWMBN_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC2NE))
#define PWMCN_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC3NE))
#define PWMCN_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC3NE))
#define PWMDN_Enb TIM1->CCER |= (uint16_t)(((uint16_t)TIM_CCER_CC4NE))
#define PWMDN_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC4NE))
#define PWMABCN_Enb TIM1->CCER |= (uint16_t)(((uint16_t)(TIM_CCER_CC1NE|TIM_CCER_CC2NE|TIM_CCER_CC3NE)))
#define PWMABCN_Dis TIM1->CCER &= (uint16_t)(~((uint16_t)(TIM_CCER_CC1NE|TIM_CCER_CC2NE|TIM_CCER_CC3NE)))
//========使能CC4 比較中斷=====================================
#define TIM1_CMP4IEN_ENB TIM1->DIER |= TIM_IT_CC4
//((uint16_t)0x0010)
#define TIM1_CMP4IEN_DIS TIM1->DIER &= ~TIM_IT_CC4
////========使能CC4 更新中斷=====================================
//#define TIM1_UpdateIEN_ENB TIM1->DIER |= TIM_IT_Update //((uint16_t)0x0010)
//#define TIM1_UpdateIEN_DIS TIM1->DIER &= ~TIM_IT_Update
//=========比較4中斷進入的時間點=================================
#define V_CCP4PW
150
//
//===================================================
extern
void
TIM1_GPIO_Init(
void
) ;
extern
void
TIM1_PWM_Config(
void
);
extern
void
ToPwmValue(uint16 Tcon) ;
extern
void
BLDC_Bak(uint16_t PwmDuty) ;
extern
void
BLDC_Bak_End(
void
) ;
extern
void
TIM1_CCP4NVIC_Config(
void
) ;
extern
void
ToCCP4PwmValue(uint16 PwmDuty) ;
#endif
/* _TIME1_H_ */
//==文件time1.c============================================================
#include global.h
#include time1.h
TIM_TimeBaseInitTypeDef TIM_Time1BaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
uint16_t TimerPeriod =
0
;
//#define DEF_PWM_NCP_ENB 1 //PWM互補使能定義
/*******************************************************************************
* 函數名稱: TIM1_GPIO_Init
* 功能描述: TIM1--GPIO引腳配置---在此可以設置6路PWM輸出
* 輸入參數: void
* 返回參數: 無
********************************************************************************/
void
TIM1_GPIO_Init(
void
)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* 使能GPIO時鍾 */
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOA, ENABLE);
/* 配置GPIO管腳復用 PWM1 PWM2 PWM3 */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
//|GPIO_Pin_11
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN ;
//GPIO_PuPd_UP ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource8, GPIO_AF_2);
//開啟PA8復用功能
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_2);
//開啟PA9復用功能
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_2);
//開啟PA10復用功能
// GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_2);
//----------下管 PA7 PB0 PB1 配置---------------------------------------------------
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 ;
//
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//-----------------------------------------------------------------------------------
/* 配置GPIO管腳 PWM2 PWM3 互補GPIO PB0 PB1 */
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
//||GPIO_Pin_11
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
/*******************************************************************************
* 函數名稱: GPIO_DOWNPIN_ConfigRst
* 功能描述: BLDC下管IO 配置為正常模式
* 輸入參數: void
* 返回參數: 無
********************************************************************************/
void
GPIO_DOWNPIN_AFConfigRst(
void
)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 ;
//
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
//||GPIO_Pin_11
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
/*******************************************************************************
* 函數名稱: GPIO_DOWNPIN_AFConfig
* 功能描述: BLDC下管IO 配置為AF 模式
* 輸入參數: void
* 返回參數: 無
********************************************************************************/
void
GPIO_DOWNPIN_AFConfig(
void
)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 ;
//
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_2);
//
//----------------------------------------------------------
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
//||GPIO_Pin_11
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource0, GPIO_AF_2);
//
GPIO_PinAFConfig(GPIOB, GPIO_PinSource1, GPIO_AF_2) ;
}
/*******************************************************************************
* 函數名稱: TIM1_PWM_Config
* 功能描述: TIM1-PWM配置
* 輸入參數: void
* 返回參數: 無
********************************************************************************/
void
TIM1_PWM_Config(
void
)
{
/* TIM1 的配置 ---------------------------------------------------
TIM1 輸入時鍾(TIM1CLK) 設置為 APB2 時鍾 (PCLK2)
=> TIM1CLK = PCLK2 = SystemCoreClock
TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock
SystemCoreClock 為48 MHz
我們的目標產生 4 路PWM 信號在17.57 KHz:
- TIM1_Period = (SystemCoreClock / 17570) - 1
信道1設置的占空比為 50%
信道2設置的占空比為 37.5%
信道3設置的占空比為 25%
信道4設置的占空比為 12.5%
定時器脈沖的計算方式如下:
- ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100
*/
/*計算預定表的值,也就是多少個時鍾計數為一個周期*/
//TimerPeriod = (SystemCoreClock / 17570 ) - 1;
//TimerPeriod = (SystemCoreClock / DEF_PWMFRE ) - 1;
TimerPeriod = (SystemCoreClock / DEF_PWMFRE);
/* TIM1 時鍾使能 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 , ENABLE);
/* Time 定時基礎設置*/
TIM_Time1BaseStructure.TIM_Prescaler =
0
;
TIM_Time1BaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
/* Time 定時設置為上升沿計算模式*/
TIM_Time1BaseStructure.TIM_Period = TimerPeriod;
TIM_Time1BaseStructure.TIM_ClockDivision =
0
;
TIM_Time1BaseStructure.TIM_RepetitionCounter =
0
;
TIM_TimeBaseInit(TIM1, &TIM_Time1BaseStructure);
/* 頻道1,2,3,4的PWM 模式設置 */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable ;
//TIM_OutputState_Enable; //PWM輸出使能位
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable ;
//TIM_OutputNState_Enable; //互補PWM輸出使能位
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
//PWM 1為有效電平
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;
//PWM互補 0為有效電平
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;
TIM_OCInitStructure.TIM_Pulse =
0
;
//賦占空比值
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
//使能頻道1配置
TIM_OCInitStructure.TIM_Pulse =
0
;
//賦占空比值
TIM_OC2Init(TIM1, &TIM_OCInitStructure);
//使能頻道2配置
TIM_OCInitStructure.TIM_Pulse =
0
;
//賦占空比值
TIM_OC3Init(TIM1, &TIM_OCInitStructure);
//使能頻道3配置
//------使能比較四通道------------------------------------
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable ;
//TIM_OutputState_Enable; //
TIM_OCInitStructure.TIM_Pulse = V_CCP4PW;
TIM_OC4Init(TIM1, &TIM_OCInitStructure);
TIM_ITConfig(TIM1,TIM_IT_CC4, ENABLE);
//TIM1 比較四中斷
//--------------------------------------------------------
/* TIM1 計算器使能*/
TIM_Cmd(TIM1, ENABLE);
/* TIM1 主輸出使能 */
TIM_CtrlPWMOutputs(TIM1, ENABLE);
}
/*******************************************************************************
* 函數名稱: ToPwmValue
* 功能描述: 賦各通道占空比值
* 輸入參數: 占空比值
* 返回參數: 無
********************************************************************************/
void
ToPwmValue(uint16 PwmDuty)
{
TIM1->CCR1 = PwmDuty ;
TIM1->CCR2 = PwmDuty ;
TIM1->CCR3 = PwmDuty ;
// TIM1->CCR4 = PwmDuty ;
}
/*******************************************************************************
* 函數名稱: BLDC_Bak
* 功能描述: 剎車
* 輸入參數: 剎車占空比
* 返回參數: 無
********************************************************************************/
void
BLDC_Bak(uint16_t PwmDuty)
{
GPIO_DOWNPIN_AFConfig() ;
PWMABC_Dis ;
//關PWM輸出
PWMABCN_Enb ;
//使能互補PWM輸出
TIM1->CCR1 = PwmDuty ;
//賦剎車PWM值
TIM1->CCR2 = PwmDuty ;
TIM1->CCR3 = PwmDuty ;
}
/*******************************************************************************
* 函數名稱: BLDC_Bak_End
* 功能描述: 剎車結束時 初始化化下管配置為正常IO模式
* 輸入參數: 剎車占空比
* 返回參數: 無
********************************************************************************/
void
BLDC_Bak_End(
void
)
{
PWMABCN_Dis ;
//禁止互補輸出
GPIO_DOWNPIN_AFConfigRst() ;
//
}
/*******************************************************************************
* 函數名稱: TIM1_CCP4NVIC_Config
* 功能描述: TIM1 CCR4 中斷配置
* 輸入參數: 無
* 返回參數: 無
********************************************************************************/
void
TIM1_CCP4NVIC_Config(
void
)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* TIM1 時鍾使能 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 , ENABLE);
/* TIM1 中斷嵌套設計*/
NVIC_InitStructure.NVIC_IRQChannel = TIM1_CC_IRQn ;
//TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority =
0
;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/*******************************************************************************
* 函數名稱: ToCCP4PwmValue
* 功能描述: 賦比較4中斷時間值
* 輸入參數: 占空比值
* 返回參數: 無
********************************************************************************/
void
ToCCP4PwmValue(uint16 PwmDuty)
{
TIM1->CCR4 = PwmDuty ;