huxi
131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
#ifndef _MCPWM_H_
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#define _MCPWM_H_
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#include "typedef.h"
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#define MCPWM_NUM_MAX 8
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#define MCPWM_CH_MAX 2
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#define MCPWM_TMR_BASE_ADDR (&JL_MCPWM->TMR0_CON)
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#define MCPWM_TMR_OFFSET (&JL_MCPWM->TMR1_CON - &JL_MCPWM->TMR0_CON)
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#define MCPWM_CH_BASE_ADDR (&JL_MCPWM->CH0_CON0)
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#define MCPWM_CH_OFFSET (&JL_MCPWM->CH1_CON0 - &JL_MCPWM->CH0_CON0)
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//TMRx_CON reg
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#define MCPWM_TMR_INCF 15
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// #define MCPWM_TMR_RESERVE 14
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#define MCPWM_TMR_UFPND 13
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#define MCPWM_TMR_OFPN 12
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#define MCPWM_TMR_UFCLR 11
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#define MCPWM_TMR_OFCLR 10
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#define MCPWM_TMR_UFIE 9
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#define MCPWM_TMR_OFTE 8
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#define MCPWM_TMR_CKSRC 7
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#define MCPWM_TMR_CKPS 3 //4bit
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// #define MCPWM_TMR_RESERVE 2
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#define MCPWM_TMR_MODE 0 //2bit
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//CHx_CON0 reg
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#define MCPWM_CH_DTCKPS 12 //4bit
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#define MCPWM_CH_DTPR 7 //5bit
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#define MCPWM_CH_DTEN 6
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#define MCPWM_CH_L_INV 5
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#define MCPWM_CH_H_INV 4
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#define MCPWM_CH_L_EN 3
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#define MCPWM_CH_H_EN 2
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#define MCPWM_CH_CMP_LD 0 //2bit
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//CHx_CON1 reg
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#define MCPWM_CH_FPND 15
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#define MCPWM_CH_FCLR 14
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// #define MCPWM_CH_RESERVE 12 //2bit
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#define MCPWM_CH_INTEN 11
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#define MCPWM_CH_TMRSEL 8 //3bit
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// #define MCPWM_CH_reserve 5 //3bit
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#define MCPWM_CH_FPINEN 4
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#define MCPWM_CH_FPINAUTO 3
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#define MCPWM_CH_FPINSEL 0 //3bit
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//FPIN_CON reg
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#define MCPWM_FPIN_EDGE 16 //8bit
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#define MCPWM_FPIN_FLT_EN 8 //8bit
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// #define MCPWM_CH_reserve 6 //2bit
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#define MCPWM_FPIN_FLT_PR 8 //5bit
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//MCPWM_CON reg
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#define MCPWM_CON_CLK_EN 16
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#define MCPWM_CON_TMR_EN 8 //8bit
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#define MCPWM_CON_PWM_EN 0 //8bit2
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/* pwm通道选择 */
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typedef enum {
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MCPWM_CH0 = 0,
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MCPWM_CH1,
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} mcpwm_ch_type;
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/* 对齐方式选择 */
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typedef enum {
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MCPWM_EDGE_ALIGNED, ///< 边沿对齐模式
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MCPWM_CENTER_ALIGNED, ///< 中心对齐模式
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} mcpwm_aligned_mode_type;
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/* 故障保护触发边沿 */
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typedef enum {
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MCPWM_EDGE_FAILL = 0, //下降沿触发
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MCPWM_EDGE_RISE, //上升沿触发
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MCPWM_EDGE_DEFAULT = 0xff, //默认会忽略
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} mcpwm_edge;
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/* MCPWM通道寄存器 */
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typedef struct _mcpwm_ch_reg {
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volatile u32 ch_con0;
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volatile u32 ch_con1;
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volatile u32 ch_cmph;
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volatile u32 ch_cmpl;
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} MCPWM_CHx_REG;
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/* MCPWM TIMER寄存器 */
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typedef struct _mcpwm_timer_reg {
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volatile u32 tmr_con;
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volatile u32 tmr_cnt;
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volatile u32 tmr_pr;
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} MCPWM_TIMERx_REG;
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/* 初始化要用的参数结构体 */
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typedef void (*mcpwm_detect_irq_callback)(u32 ch); //回调函数
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struct mcpwm_config {
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mcpwm_ch_type ch; ///< 选择pwm通道号
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mcpwm_aligned_mode_type aligned_mode; ///< PWM对齐方式选择
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u32 frequency; ///< 初始共同频率，CH0, CH, CH2,,,,,,
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u16 duty; ///< 初始占空比，0~10000 对应 0%~100% 。每个通道可以有不同的占空比。互补模式的占空比体现在高引脚的波形上。
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u16 h_pin; ///< 一个通道的H引脚。
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u16 l_pin; ///< 一个通道的L引脚，不需要则填-1
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u8 complementary_en; ///< 该通道的两个引脚输出的波形。0: 同步， 1: 互补，互补波形的占空比体现在H引脚上
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u16 detect_port;
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mcpwm_edge edge;
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mcpwm_detect_irq_callback irq_cb;
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u16 irq_priority; //默认值优先级1
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};
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struct mcpwm_info_t {
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MCPWM_CHx_REG *ch_reg;
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MCPWM_TIMERx_REG *timer_reg;
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struct mcpwm_config cfg;
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};
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int mcpwm_init(struct mcpwm_config *mcpwm_cfg);
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void mcpwm_deinit(int mcpwm_cfg_id);
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void mcpwm_start(int mcpwm_cfg_id);
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void mcpwm_pause(int mcpwm_cfg_id);
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void mcpwm_resume(int mcpwm_cfg_id);
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void mcpwm_set_frequency(int mcpwm_cfg_id, mcpwm_aligned_mode_type align, u32 frequency);
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void mcpwm_set_duty(int mcpwm_cfg_id, u16 duty);
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void mcpwm_fpnd_clr(u32 ch);
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#endif
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