/* Copyright Statement: * * This software/firmware and related documentation ("AutoChips Software") are * protected under relevant copyright laws. The information contained herein is * confidential and proprietary to AutoChips Inc. and/or its licensors. Without * the prior written permission of AutoChips inc. and/or its licensors, any * reproduction, modification, use or disclosure of AutoChips Software, and * information contained herein, in whole or in part, shall be strictly * prohibited. * * AutoChips Inc. (C) 2016. All rights reserved. * * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("AUTOCHIPS SOFTWARE") * RECEIVED FROM AUTOCHIPS AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER * ON AN "AS-IS" BASIS ONLY. AUTOCHIPS EXPRESSLY DISCLAIMS ANY AND ALL * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR * NONINFRINGEMENT. NEITHER DOES AUTOCHIPS PROVIDE ANY WARRANTY WHATSOEVER WITH * RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, * INCORPORATED IN, OR SUPPLIED WITH THE AUTOCHIPS SOFTWARE, AND RECEIVER AGREES * TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. * RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO * OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN AUTOCHIPS * SOFTWARE. AUTOCHIPS SHALL ALSO NOT BE RESPONSIBLE FOR ANY AUTOCHIPS SOFTWARE * RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND AUTOCHIPS'S * ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE AUTOCHIPS SOFTWARE * RELEASED HEREUNDER WILL BE, AT AUTOCHIPS'S OPTION, TO REVISE OR REPLACE THE * AUTOCHIPS SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE * CHARGE PAID BY RECEIVER TO AUTOCHIPS FOR SUCH AUTOCHIPS SOFTWARE AT ISSUE. */ /********************/ #include "ac780x_gpio.h" #include "ac780x.h" #include "ac780x_timer.h" #include "ac780x_pwm.h" #include "pwm.h" /*******************/ /*******************/ uint32_t g_positvePulse;///>1; independentChConfig[1].levelMode = PWM_HIGH_TRUE; independentChConfig[1].polarity = PWM_OUTPUT_POLARITY_ACTIVE_HIGH; independentChConfig[1].interruptEn = DISABLE; independentChConfig[1].initLevel = PWM_LOW_LEVEL; independentChConfig[1].triggerEn = DISABLE; initModeStruct.countMode = PWM_UP_COUNT; initModeStruct.deadtime = 24; initModeStruct.deadtimePsc = PWM_DEADTIME_DIVID_1; initModeStruct.initChOutputEn = ENABLE; initModeStruct.initTriggerEn = DISABLE; initModeStruct.independentChannelNum = 2; initModeStruct.independentChConfig = independentChConfig; pwmConfig.mode = PWM_MODE_MODULATION; pwmConfig.clkSource = PWM_CLK_SOURCE_APB; pwmConfig.clkPsc = PWM_PRES; pwmConfig.initValue = 0; pwmConfig.maxValue = MOD_PWM - 1; pwmConfig.overflowInterrupEn = ENABLE; pwmConfig.cntOverflowFreq = 0; pwmConfig.interruptEn = DISABLE; pwmConfig.callBack = PWM1_CallBack; //PWM中断回调 pwmConfig.initModeStruct = &initModeStruct; PWM_Init(PWM1, &pwmConfig); NVIC_SetPriority(PWM1_IRQn, 0); //设置PWM模块中断的优先级 } //设置电机转运速度 , speed 取值 0--100; void Motor_Setspeed(int8_t speed) { uint16_t chValue=0; if(speed >= 0){ //电机正转, 开锁 if(speed > 100) speed = 100; chValue = (uint16_t)(speed*1.0*MOD_PWM/100); PWM_SetChannelCountValue(PWM1, PWM_CH_3, 0); PWM_SetChannelCountValue(PWM1, PWM_CH_2, chValue); }else{//电机反转, 关锁 speed = -speed; if(speed > 100) speed = 100; chValue = (uint16_t)(speed*1.0*MOD_PWM/100); PWM_SetChannelCountValue(PWM1, PWM_CH_2, 0); PWM_SetChannelCountValue(PWM1, PWM_CH_3, chValue); } } void Motor_Positive(int8_t speed) { uint16_t chValue=0; if(speed > 100) speed = 100; chValue = (uint16_t)(speed*1.0*MOD_PWM/100); PWM_SetChannelCountValue(PWM1, PWM_CH_2, chValue); } void Motor_Negative(int8_t speed) { uint16_t chValue=0; if(speed > 100) speed = 100; chValue = (uint16_t)(speed*1.0*MOD_PWM/100); PWM_SetChannelCountValue(PWM1, PWM_CH_3, chValue); } # if 0 /** * PWM1_GenerateFrequency * * @param[in] none * @return none * * @brief * 1.PWM1_CH0,PWM1_CH1组合模式,PWM1_CH0输出频率为20K,占空比为25%的波形,PWM1_CH1与PWM1_CH0波形互补,带1us死区插入。 * 2.PWM1_CH6,PWM1_CH7独立PWM模式(边沿对齐),生成频率为20K,PWM1_CH6占空比50%,PWM1_CH7占空比25%的波形。 * 3.PWM计数器溢出中断,对输出PWM波进行计数 * */ void PWM1_GenerateFrequency(void) { PWM_CombineChConfig combineChConfig[1]; //组合模式相关结构体 PWM_IndependentChConfig independentChConfig[2];//独立模式相关结构体 PWM_ModulationConfigType pwmConfig; //PWM模式相关结构体 PWM_ConfigType config; //PWM模块结构体 //结构体数据清零 memset(&combineChConfig, 0, sizeof(combineChConfig)); memset(&independentChConfig, 0, sizeof(independentChConfig)); memset(&pwmConfig, 0, sizeof(pwmConfig)); memset(&config, 0, sizeof(config)); /*通道0/1配成组合模式PWM输出*/ /* 向上计数组合模式: 周期=(MCVR-CNTIN+1)*PWM计数器时钟周期 占空比=|CH(n+1)V-CH(n)V|*PWM计数器时钟周期 向上-向下计数组合模式: 周期=2*(MCVR-CNTIN)*PWM计数器时钟周期 占空比=2*(|CH(n+1)V-CH(n)V|)*PWM计数器时钟周期 */ combineChConfig[0].pairChannel = PWM_CH_0; //PWM通道对数,PWM_CH_0/2/4/6对应PAIR0/1/2/3 /* 组合模式占空比由ch1stValue,ch2ndValue共同决定,pwmConfig.countMode配为PWM_UP_COUNT(计数器向上计数)时,占空比为:(ch1stValue-ch2ndValue)/(config.maxValue + 1) */ combineChConfig[0].ch1stValue = MOD_PWM >> 2; //通道2n channel值,n为PWM对数编号 combineChConfig[0].ch2ndValue = MOD_PWM >> 1; //通道2n+1 channel值,n为PWM对数编号 combineChConfig[0].levelMode = PWM_HIGH_TRUE; //输出PWM高有效,如果占空比设为25%,是指的高有效电平占比25% combineChConfig[0].deadtimeEn = ENABLE;//死区插入使能,组合模式才支持死区插入 combineChConfig[0].complementEn = ENABLE;//互补模式使能,使能后,PWM通道波形互补,DISABLE波形输出同向 combineChConfig[0].ch1stMatchDir = PWM_MATCH_DIR_DOWN;//仅在向上-向下计数(countMode为PWM_UP_DOWN_COUNT)组合模式有效,用于选择匹配生效点方向 combineChConfig[0].ch2ndMatchDir = PWM_MATCH_DIR_DOWN;//仅在向上-向下计数(countMode为PWM_UP_DOWN_COUNT)组合模式有效,用于选择匹配生效点方向 combineChConfig[0].ch1stPolarity = PWM_OUTPUT_POLARITY_ACTIVE_HIGH;//输出极性高有效,PWM mask后PWM输出低电平 combineChConfig[0].ch2ndPolarity = PWM_OUTPUT_POLARITY_ACTIVE_HIGH;//输出极性高有效,PWM mask后PWM输出低电平 combineChConfig[0].ch1stInterruptEn = DISABLE;//PWM通道匹配中断使能位 combineChConfig[0].ch2ndInterruptEn = DISABLE;//PWM通道匹配中断使能位 combineChConfig[0].ch1stInitLevel = PWM_LOW_LEVEL;//PWM初始电平输出为低,该配置受initChOutputEn控制,决定PWM计数器未工作前PWM口的输出电平值。 combineChConfig[0].ch2ndInitLevel = PWM_LOW_LEVEL;//PWM初始电平输出为低,该配置受initChOutputEn控制,决定PWM计数器未工作前PWM口的输出电平值。 combineChConfig[0].ch1stTriggerEn = DISABLE;//通道2n外部触发使能,n为PWM对数编号 combineChConfig[0].ch2ndTriggerEn = DISABLE;//通道2n+1外部触发使能,n为PWM对数编号 /* 边沿对齐PWM模式: 周期=(MCVR-CNTIN+1)*PWM计数器时钟周期 占空比=(CHnV-CNTIN+1)*PWM计数器时钟周期 中心对齐PWM模式: 周期=2*(MCVR-CNTIN)*PWM计数器时钟周期 占空比=2*(CH(n)V-CNTIN)*PWM计数器时钟周期 */ /*channel 6*/ independentChConfig[0].channel = PWM_CH_6; //通道6 independentChConfig[0].chValue = MOD_PWM >> 1;//通道6 channel值,输出占空比 = chValue / (config.maxValue + 1) = 50% independentChConfig[0].levelMode = PWM_HIGH_TRUE; //输出PWM高有效 independentChConfig[0].polarity = PWM_OUTPUT_POLARITY_ACTIVE_HIGH; //输出极性高有效,PWM mask后PWM输出低电平 independentChConfig[0].interruptEn = DISABLE;//PWM通道匹配中断使能位 independentChConfig[0].initLevel = PWM_LOW_LEVEL;//PWM初始电平输出为低,该配置受initChOutputEn控制,决定PWM计数器未工作前PWM口的输出电平值。 independentChConfig[0].triggerEn = DISABLE;//通道外部触发使能 /*channel 7*/ independentChConfig[1].channel = PWM_CH_7; //通道7 independentChConfig[1].chValue = MOD_PWM >> 2;//通道7 channel值,输出占空比 = chValue / (config.maxValue + 1) = 25% independentChConfig[1].levelMode = PWM_HIGH_TRUE; //输出PWM高有效 independentChConfig[1].polarity = PWM_OUTPUT_POLARITY_ACTIVE_HIGH; //输出极性高有效,PWM mask后PWM输出低电平 independentChConfig[1].interruptEn = DISABLE;//PWM通道匹配中断使能位 independentChConfig[1].initLevel = PWM_LOW_LEVEL;//PWM初始电平输出为低,该配置受initChOutputEn控制,决定PWM计数器未工作前PWM口的输出电平值。 independentChConfig[1].triggerEn = DISABLE;//通道外部触发使能 /*modulation mode config*/ pwmConfig.countMode = PWM_UP_COUNT; //PWM计数器模式 (不同的计数模式频率及占空比计算方式不同) pwmConfig.independentChannelNum = 2; //独立通道数 pwmConfig.combineChannelNum = 1; //组合对数 pwmConfig.independentChConfig = independentChConfig; //独立通道配置变量地址赋值 pwmConfig.combineChConfig = combineChConfig; //组合通道配置变量地址赋值 pwmConfig.deadtimePsc = PWM_DEADTIME_DIVID_1;//死区插入分频值,与deadtime一起决定插入死区的时间。 pwmConfig.deadtime = 24; //死区时间 = (DTPSC * DTVAL)/PWM计数器时钟周期 = 1*24/24000000 = 1us pwmConfig.initChOutputEn = ENABLE; //使能初始化通道输出,使能后独立PWM模式的initLevel和组合PWM模式的ch1stInitLevel和ch2ndPolarity配置才会生效 pwmConfig.initTriggerEn = DISABLE; //通道外部触发使能 /*pwm config*/ config.mode = PWM_MODE_MODULATION;//PWM模块配置为PWM模式 config.initModeStruct = &pwmConfig;//PWM配置结构体地址赋值 config.clkSource = PWM_CLK_SOURCE_APB; //PWM时钟源配置 config.clkPsc = PWM_PRES;//PWM时钟源分频 config.initValue = 0;//计数器初始寄存器值 config.maxValue = MOD_PWM - 1; //PWM计数器最大值 config.overflowInterrupEn = ENABLE;//计数器溢出中断使能 config.cntOverflowFreq = 0;//CNTOF中断产生的频率与计数器频率的关系(0-127), 0表示每次计数器溢出都产生溢出中断,1表示间隔1次,2表示间隔2次,以此内推。 config.interruptEn = ENABLE; //PWM中断使能 config.callBack = PWM1_CallBack; //PWM中断回调 PWM_Init(PWM1, &config); //配置初始化生效 NVIC_SetPriority(PWM1_IRQn, 0); //设置PWM模块中断的优先级 } #endif /*******************/