149 lines
3.4 KiB
C
149 lines
3.4 KiB
C
/*
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* PWM.c
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*
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* Created on: 2022年03月12日
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* Author: User
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*/
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/* Includes ------------------------------------------------------------------*/
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#include <main.h>
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/* Private define-------------------------------------------------------------*/
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#define CCP_S1 BIT5
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#define CCP_S0 BIT4
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#define EPC0H BIT1
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#define EPC0L BIT0
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/* Private variables----------------------------------------------------------*/
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/* Private function prototypes------------------------------------------------*/
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static void PWM_Init(void); // PWM初始化
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static void PWM1_HeatingSetting(uint8_t Percent); //通道1设置加热
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static void PWM2_HeatingSetting(uint8_t Percent); //通道2设置加热
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/* Public variables-----------------------------------------------------------*/
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PWM_t PWM =
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{0,
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0,
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PWM_Init,
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PWM1_HeatingSetting,
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PWM2_HeatingSetting};
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/*
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* @name PWM_Init
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* @brief PWM初始化
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* @param None
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* @retval None
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*/
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static void PWM_Init()
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{
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PWM0_MAP = 0x22; // PWM0通道映射P22
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PWM01_MAP = 0x23; // PWM01通道映射P23
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PWM0C = 0x01; // PWM0高有效 PWM01高有效 时钟8分频
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//独立模式下，PWM0和PWM01共用一个周期寄存器
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// PWM0的占空比调节使用 PWM0组的占空比寄存器
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// PWM01的占空比调节使用 PWM0组的死区寄存器
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//周期计算 = 0x03ff / (Fosc / PWM分频系数)
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// = 0x03ff / (16000000 / 8)
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// = 1023 /2000000
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// = 511.5us 约1.955kHz
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PWM0PH = 0x03; //周期高4位设置为0x03
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PWM0PL = 0xE7; //周期低8位设置为0xFF
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//占空比计算= 0x0155 / (Fosc / PWM分频系数) （Fosc见系统时钟配置的部分）
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// = 0x0155 / (16000000 / 8)
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// = 341 / 2000000
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// = 170.5us 占空比为 170.5/511.5 = 33.3%
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PWM0DH = 0x00; // PWM0高4位占空比
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PWM0DL = 0x00; // PWM0低4位占空比
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PWM0DTH = 0x00; // PWM01高4位占空比
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PWM0DTL = 0x00; // PWM01低8位占空比
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PWM0EN = 0x0F; //使能PWM0 工作于独立模式
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}
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/*
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* @name PWM1_HeatingSetting
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* @brief 调整加热功率
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* @param None
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* @retval None
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*/
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static void PWM1_HeatingSetting(uint8_t Percent)
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{
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uint16_t Temp_Value = 0;
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Temp_Value = Percent * 10;
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if (Public.Channel1_StatusFlag != FALSE)
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{
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if (Channel1_Error_Flag != System_Fault) //判断是否故障
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{
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if (Percent == 0)
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{
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PWM.Heating_Flag1 = System_Complete;//加热温度已经到达
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}
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else
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{
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PWM.Heating_Flag1 = TRUE; //正在加热
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}
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}
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else
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{
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PWM.Heating_Flag1 = System_Fault;
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Temp_Value = 0;
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}
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}
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else
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{
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PWM.Heating_Flag1 = FALSE;
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}
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PWM0DTH = (Temp_Value >> 8) & 0xFF;
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PWM0DTL = (Temp_Value & 0xFF);
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}
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/*
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* @name PWM2_HeatingSetting
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* @brief 调整加热功率
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* @param None
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* @retval None
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*/
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static void PWM2_HeatingSetting(uint8_t Percent)
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{
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uint16_t Temp_Value = 0;
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Temp_Value = Percent * 10;
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if (Public.Channel2_StatusFlag != FALSE)
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{
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if (Channel2_Error_Flag != System_Fault) //判断是否故障
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{
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if (Percent == 0)
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{
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PWM.Heating_Flag2 = System_Complete; //加热温度已经到达
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}
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else
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{
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PWM.Heating_Flag2 = TRUE; //正在加热
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}
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}
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else
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{
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PWM.Heating_Flag2 = System_Fault;
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Temp_Value = 0;
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}
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}
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else
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{
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PWM.Heating_Flag2 = FALSE;
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}
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PWM0DH = (Temp_Value >> 8) & 0xFF;
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PWM0DL = (Temp_Value & 0xFF);
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}
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/********************************************************
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End Of File
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********************************************************/ |