74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
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#ifndef _MCPWM_H_
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#define _MCPWM_H_
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#include "typedef.h"
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/* 对齐方式选择 */
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typedef enum {
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pwm_edge_aligned, ///< 边沿对齐模式
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pwm_center_aligned, ///< 中心对齐模式
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} pwm_aligned_mode_type;
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/* pwm通道选择 */
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typedef enum {
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pwm_ch0,
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pwm_ch1,
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pwm_ch2,
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pwm_ch3,
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pwm_ch_max,
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} pwm_ch_num_type;
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/* MCPWM TIMER寄存器 */
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typedef struct _pwm_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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} PWM_TIMER_REG;
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/* MCPWM通道寄存器 */
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typedef struct _pwm_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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} PWM_CH_REG;
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/* 初始化要用的参数结构体 */
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struct pwm_platform_data {
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pwm_aligned_mode_type pwm_aligned_mode; ///< PWM对齐方式选择
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pwm_ch_num_type pwm_ch_num; ///< 选择pwm通道号
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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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u8 h_pin; ///< 一个通道的H引脚。
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u8 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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};
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void mcpwm_set_frequency(pwm_ch_num_type ch, pwm_aligned_mode_type align, u32 frequency);
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void mcpwm_set_duty(pwm_ch_num_type pwm_ch, u16 duty);
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void mctimer_ch_open_or_close(pwm_ch_num_type pwm_ch, u8 enable);
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void mcpwm_ch_open_or_close(pwm_ch_num_type pwm_ch, u8 enable);
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void mcpwm_open(pwm_ch_num_type pwm_ch);
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void mcpwm_close(pwm_ch_num_type pwm_ch);
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void mcpwm_init(struct pwm_platform_data *arg);
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void mcpwm_test(void);
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void set_io_ext_interrupt_cbfun(void (*cbfun)(u8 index));
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void io_ext_interrupt_init(u8 index, u8 port, u8 trigger_mode);
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void io_ext_interrupt_close(u8 index, u8 port);
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void io_ext_interrupt_test(void);
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void timer_pwm_init(JL_TIMER_TypeDef *JL_TIMERx, u32 pwm_io, u32 fre, u32 duty);
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void set_timer_pwm_duty(JL_TIMER_TypeDef *JL_TIMERx, u32 duty);
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void timer_pwm_test(void);
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#endif
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