1 #ifndef __SWM341_PWM_H__ 2 #define __SWM341_PWM_H__ 3 4 5 typedef struct { 6 uint8_t Mode; //PWM_EDGE_ALIGNED、PWM_CENTER_ALIGNED、PWM_ASYM_CENTER_ALIGNED 7 8 uint16_t Clkdiv; //1--1024 9 10 uint16_t Period; //周期 11 12 uint16_t HdutyA; //占空比，高电平时长；PWM_ASYM_CENTER_ALIGNED 模式下设定前半周期的高电平时长 13 uint16_t HdutyA2; //只在 PWM_ASYM_CENTER_ALIGNED 模式下使用，用于设定后半周期的高电平时长 14 uint16_t DeadzoneA; //死区时长，取值0--1023 15 uint8_t IdleLevelA; //停止状态下PWMxA输出电平 16 uint8_t IdleLevelAN; //停止状态下PWMxAN输出电平 17 uint8_t OutputInvA; //PWMxA输出取反 18 uint8_t OutputInvAN; //PWMxAN输出取反 19 20 uint16_t HdutyB; 21 uint16_t HdutyB2; 22 uint16_t DeadzoneB; 23 uint8_t IdleLevelB; 24 uint8_t IdleLevelBN; 25 uint8_t OutputInvB; 26 uint8_t OutputInvBN; 27 28 uint8_t UpOvfIE; //上升沿计数器溢出中断使能，PWM_EDGE_ALIGNED 模式下向上计数，因此只有上升沿 29 uint8_t DownOvfIE; //下降沿计数器溢出中断使能，另外两种模式下先向上计数、后向下计数，上升沿是前半周期、下降沿是后半周期 30 uint8_t UpCmpAIE; //上升沿比较器A匹配中断使能 31 uint8_t DownCmpAIE; //下降沿比较器A匹配中断使能 32 uint8_t UpCmpBIE; //上升沿比较器B匹配中断使能 33 uint8_t DownCmpBIE; //下降沿比较器B匹配中断使能 34 } PWM_InitStructure; 35 36 37 #define PWM_EDGE_ALIGNED 0 38 #define PWM_CENTER_ALIGNED 1 39 #define PWM_ASYM_CENTER_ALIGNED 2 // 非对称中心对齐模式，上升沿和下降沿具有不同的翻转点比较值 40 41 42 #define PWM_CH_A 0 43 #define PWM_CH_B 1 44 45 #define PWM0_MSK (1 << 0) 46 #define PWM1_MSK (1 << 1) 47 #define PWM2_MSK (1 << 2) 48 #define PWM3_MSK (1 << 3) 49 #define PWM4_MSK (1 << 4) 50 51 #define PWM_BRK0 (1 << 0) 52 #define PWM_BRK1 (1 << 1) 53 #define PWM_BRK2 (1 << 2) 54 55 #define PWM_DIR_UP 0 56 #define PWM_DIR_DOWN 1 57 58 #define PWM_TRG_0 0 //计数器溢出或与指定值相等时 PWM 输出触发信号 59 #define PWM_TRG_1 1 60 #define PWM_TRG_2 2 61 #define PWM_TRG_3 3 62 #define PWM_TRG_4 4 63 #define PWM_TRG_5 5 64 #define PWM_TRG_6 6 65 #define PWM_TRG_7 7 66 67 #define PWM_EVT_DIS 0 //外部事件信号为高时 PWM 启动计数、停止计数、暂停计数、屏蔽输出 68 #define PWM_EVT_0 1 69 #define PWM_EVT_1 2 70 #define PWM_EVT_2 3 71 #define PWM_EVT_3 4 72 #define PWM_EVT_4 5 73 #define PWM_EVT_TIMR0 6 74 #define PWM_EVT_TIMR1 7 75 76 /* Interrupt Type */ 77 #define PWM_IT_OVF_UP (1 << 0) //向上计数时计数器溢出，PWM_EDGE_ALIGNED 模式下向上计数，因此只有上升沿 78 #define PWM_IT_OVF_DOWN (1 << 1) //向下计数时计数器溢出，另外两种模式下先向上计数、后向下计数，上升沿是前半周期、下降沿是后半周期 79 #define PWM_IT_CMPA_UP (1 << 2) //向上计数时计数器值与CMPA相等 80 #define PWM_IT_CMPB_UP (1 << 3) //向上计数时计数器值与CMPB相等 81 #define PWM_IT_CMPA_DOWN (1 << 4) //向下计数时计数器值与CMPA相等 82 #define PWM_IT_CMPB_DOWN (1 << 5) //向下计数时计数器值与CMPB相等 83 84 #define PWM_BRKIT_BRK0 (1 << 0) //PWM_BRK0引脚上出现刹车信号 85 #define PWM_BRKIT_BRK1 (1 << 1) 86 #define PWM_BRKIT_BRK2 (1 << 2) 87 88 89 90 void PWM_Init(PWM_TypeDef * PWMx, PWM_InitStructure * initStruct); //PWM初始化 91 void PWM_Start(uint32_t pwm); //启动PWM，开始PWM输出 92 void PWM_Stop(uint32_t pwm); //关闭PWM，停止PWM输出 93 void PWM_Restart(uint32_t pwm); 94 95 void PWM_ReloadEn(uint32_t pwm); 96 void PWM_ReloadDis(uint32_t pwm); 97 98 void PWM_BrkInPolarity(uint32_t brk, uint32_t level); 99 void PWM_BrkConfig(PWM_TypeDef * PWMx, uint32_t chn, uint32_t brk, uint32_t out, uint32_t outN, uint32_t outHold, uint32_t stpCount); 100 101 void PWM_OvfTrigger(PWM_TypeDef * PWMx, uint32_t en_up, uint32_t en_down, uint32_t trig_chn); 102 void PWM_CmpTrigger(PWM_TypeDef * PWMx, uint16_t match, uint32_t dir, uint32_t width, uint32_t trig_chn, uint32_t adc_trig_pos); 103 104 void PWM_OutMask(PWM_TypeDef * PWMx, uint32_t chn, uint32_t evt, uint32_t out, uint32_t evt_n, uint32_t out_n); 105 106 void PWM_SetPeriod(PWM_TypeDef * PWMx, uint16_t period); //设置周期 107 uint16_t PWM_GetPeriod(PWM_TypeDef * PWMx); //获取周期 108 void PWM_SetHDuty(PWM_TypeDef * PWMx, uint32_t chn, uint16_t hduty); //设置高电平时长 109 uint16_t PWM_GetHDuty(PWM_TypeDef * PWMx, uint32_t chn); //获取高电平时长 110 void PWM_SetHDuty2(PWM_TypeDef * PWMx, uint32_t chn, uint16_t hduty, uint16_t hduty2); //设置高电平时长，用于非对称中心对齐模式 111 void PWM_GetHDuty2(PWM_TypeDef * PWMx, uint32_t chn, uint16_t *hduty, uint16_t *hduty2); //获取高电平时长，用于非对称中心对齐模式 112 void PWM_SetDeadzone(PWM_TypeDef * PWMx, uint32_t chn, uint16_t deadzone); //设置死区时长 113 uint16_t PWM_GetDeadzone(PWM_TypeDef * PWMx, uint32_t chn); //获取死区时长 114 115 void PWM_IntEn(PWM_TypeDef * PWMx, uint32_t it); //中断使能 116 void PWM_IntDis(PWM_TypeDef * PWMx, uint32_t it); //中断禁能 117 void PWM_IntClr(PWM_TypeDef * PWMx, uint32_t it); //中断标志清除 118 uint32_t PWM_IntStat(PWM_TypeDef * PWMx, uint32_t it); //中断标志查询 119 void PWM_BrkIntEn(uint32_t brkit); //刹车中断使能 120 void PWM_BrkIntDis(uint32_t brkit); //刹车中断禁能 121 void PWM_BrkIntClr(uint32_t brkit); //刹车中断标志清除 122 uint32_t PWM_BrkIntStat(uint32_t brkit); //刹车中断标志查询 123 124 125 #endif //__SWM341_PWM_H__ 126