stm8 pwm 驱动，亲测通过

/*************************************************************/ /* this programme for Time setup */ /* Company: New Future */ /* Programmer: windy */ /* phone: 13891912727 weixin same name */ /* Email: cjfwindy@163.com */ /* Time: 2020-10-26 15:16 */ /* Copyright(C) 2020 New Future All rights reserved */ /*************************************************************/ #include "global.h" //================================================================================= //Timer2初始化程序 void InitTMR2(void) { CLK_PCKENR1_PCKEN10 = 1; TIM2_PSCR = 0x00; // The counter clock frequency fCK_CNT is equal to fCK_PSC / 2(PSC[2:0]) TIM2_ARRL = LoByte(65536-TIME_BASE1*0x3E80); // set next interrupt time TIME_BASE1 ms TIM2_ARRH = HiByte(65536-TIME_BASE1*0x3E80); TIM2_CNTRL = TIM2_ARRL; TIM2_CNTRH = TIM2_ARRH; TIM2_CR1_CEN = 1; // Counter enabled TIM2_IER_UIE = 1; // Update interrupt enabled } //----------------------------------------------------------------- //Timer2初始化程序 PWM void TIM2_Init(void) { WORD val; /* TIM2 CC2 control LED Brightness */ CLK_PCKENR1_PCKEN10 = 1; TIM2_CR1_bit.CEN = 0; //停止计数 TIM2_CCMR1 |= 0x60; /* Output mode PWM1. */ //TIM2_CCMR2 |= 0x60; /* Output mode PWM1. */ TIM2_CCER1 |= 0x03; /* CC polarity low,enable PWM output */ //TIM2_CCER1 |= 0x10; /* CC2 polarity high,enable PWM output */ //TIM2_ARRH = 0x7D; //TIM2_ARRL = 0x00; /* Freq control register: ARR */ TIM2_ARRH = HiByte(FREQUENCESTART); TIM2_ARRL = LoByte(FREQUENCESTART); /* Freq control register: ARR */ //TIM2_CCR1H = 0x0C; /* Dutycycle control register: CCR 10% */ //TIM2_CCR1L = 0x80; /* Dutycycle control register: CCR */ val = POWERSTART + PWM_VAL * POWERBASE; TIM2_CCR1H = HiByte(val); TIM2_CCR1L = LoByte(val); //TIM2_CCR2H = HiByte(val); //TIM2_CCR2L = LoByte(val); //TIM2_PSCR = 0x00; /* Configure TIM2 prescaler =1 */ //TIM2_CR1 |= 0x01; TIM2_PSCR = 0x07; /* Configure TIM2 prescaler =128 */ TIM2_BKR_bit.MOE = 1; TIM2_CR1 |= 0x81; } //================================================================================= //Timer1初始化程序 PWM void TIM1_Init(void) { /* TIM1 CC2,CC3 control LED Brightness */ CLK_PCKENR2_PCKEN21 = 1; TIM1_CR1_bit.CEN = 0; //停止计数 TIM1_CCMR1 |= 0x60; /* Output mode PWM1. < 有效 */ TIM1_CCMR2 |= 0x60; /* Output mode PWM1. < 有效 */ //TIM1_CCMR3 |= 0x70; /* Output mode PWM2. */ TIM1_CCMR3 |= 0x60; /* Output mode PWM1. */ TIM1_CCER1 |= 0x01; /* CC1 polarity high,enable PWM output */ //TIM1_CCER1 |= 0x10; /* CC2 polarity high,enable PWM output */ //TIM1_CCER2 |= 0x01; /* CC3 polarity high,enable PWM output */ TIM1_ARRH = 0x7D; // 500Hz 越大频率越低 5Hz(分频了） 16000000/32000 TIM1_ARRL = 0x00; /* Freq control register: ARR //TIM1_ARRH = 0x02; // 24KHz(无预分频了） //TIM1_ARRL = 0x9A; /* Freq control register: ARR */ TIM1_CCR1H = 0x06; /* Dutycycle control register: CCR */ TIM1_CCR1L = 0x40; /* Dutycycle control register: CCR */ TIM1_CCR2H = 0x02; /* Dutycycle control register: CCR */ TIM1_CCR2L = 0x80; /* Dutycycle control register: CCR */ TIM1_CCR3H = 0x0C; /* Dutycycle control register: CCR */ TIM1_CCR3L = 0x80; /* Dutycycle control register: CCR */ // 越大占空比越高 //TIM1_CCR2H = HiByte(PWM_VAL); //TIM1_CCR2L = LoByte(PWM_VAL); TIM1_PSCRH = 0x00; /* Configure TIM1 prescaler =1 */ TIM1_PSCRL = 0x00; /* Configure TIM1 prescaler =1 */ //TIM1_PSCRH = 0x00; /* Configure TIM1 prescaler =100 */ //TIM1_PSCRL = 0x63; //TIM1_CCMR1_bit.OC1PE = 1; // 预装载使能 //TIM1_CCMR2_bit.OC2PE = 1; // 预装载使能 //TIM1_CCMR3_bit.OC3PE = 1; // 预装载使能 TIM1_BKR_bit.MOE = 1; TIM1_CR1 |= 0x81; } //----------------------------------------------------------------- //Timer1初始化程序 2ms void InitTMR1(void) { CLK_PCKENR2_PCKEN21 = 1; //TIM1_PSCR = 0x00; // The counter clock frequency fCK_CNT is equal to fCK_PSC / 2(PSC[2:0]) TIM1_PSCRH = 0x00; /* Configure TIM1 prescaler =1 */ TIM1_PSCRL = 0x00; TIM1_ARRL = LoByte(65536-TIME_BASE1*0x3E80); // set next interrupt time TIME_BASE1 ms TIM1_ARRH = HiByte(65536-TIME_BASE1*0x3E80); //TIM1_ARRL = LoByte(65536-TIME_BASE1*0x640); // set next interrupt time TIME_BASE1 ms //TIM1_ARRH = HiByte(65536-TIME_BASE1*0x640); TIM1_CNTRL = TIM1_ARRL; TIM1_CNTRH = TIM1_ARRH; TIM1_CR1_DIR = 0; // 0:Counter used as up-counter TIM1_CR1_CEN = 1; // Counter enabled TIM1_IER_UIE = 1; // Update interrupt enabled } //================================================================================= //Timer4初始化程序 4Mhz void InitTMR4(void) { CLK_PCKENR1 |= 0x04; TIM4_PSCR = 0x02; // The counter clock frequency fCK_CNT is equal to fCK_PSC / 2(PSC[2:0]) 2 0次方 16 TIM4_ARR = 255; // set next interrupt time TIM4_CNTR = TIM4_ARR; TIM4_CR1_ARPE = 1; // 自动重装载预装载允许位 TIM4_CR1_CEN = 1; // Counter enabled TIM4_IER_UIE = 1; // Update interrupt enabled } //=================================================================================