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- /*********************************************************************
- * INCLUDES
- */
- #include "sdk_common.h"
- #include "SEGGER_RTT.h"
- #include "usr_config.h"
- #include "exception.h"
- #include "system.h"
- #include "nrf_gpio.h"
- #include "drv_pwm.h"
- /*********************************************************************
- * DEFINITIONS
- */
- #define PWM_INSTANCE 0
- /*********************************************************************
- * LOCAL VARIABLES
- */
- static nrf_drv_pwm_t m_pwm = NRF_DRV_PWM_INSTANCE(PWM_INSTANCE);
- static nrf_drv_pwm_config_t m_config =
- {
- .output_pins =
- {
- NRF_DRV_PWM_PIN_NOT_USED, // channel 0
- NRF_DRV_PWM_PIN_NOT_USED, // channel 1
- NRF_DRV_PWM_PIN_NOT_USED, // channel 2
- NRF_DRV_PWM_PIN_NOT_USED // channel 3
- },
- .irq_priority = PWM0_IRQ_PRIORITY,
- .base_clock = NRF_PWM_CLK_125kHz,
- .count_mode = NRF_PWM_MODE_UP,
- .top_value = 15612,
- .load_mode = NRF_PWM_LOAD_INDIVIDUAL,
- .step_mode = NRF_PWM_STEP_AUTO
- };
- static nrfx_pwm_handler_t m_pwm_callback = NULL;
- //static void bsp_pwm_init_process(void)
- //{
- //// if(Except_TxError(EXCEPT_PWM_INIT,"bsp_pwm_init_error\r\n") == 0)
- //// {
- //// Process_Stop(bsp_pwm_init_process);
- //// }
- //}
- /*********************************************************************
- * LOCAL FUNCTIONS
- */
- /**
- @brief PWM 初始化
- @prama 无
- @return 无
- */
- void PWM_Initialize(void)
- {
- nrf_drv_pwm_init(&m_pwm, &m_config, m_pwm_callback);
- }
- /**
- @brief PWM 的未初始化
- @param 无
- @return 无
- */
- void PWM_UnInitialize(void)
- {
- nrfx_pwm_uninit(&m_pwm);
- }
- ///**
- // @brief PWM 唤醒操作
- // @prama t - [in] 唤醒时间
- // @return 无
- //*/
- //static void cb_pwmWakeup(uint32_t t)
- //{
- // Pwm_init();
- //}
- ///**
- // @brief PWM 睡眠操作
- // @prama t - [in] 睡眠时间
- // @return 无
- //*/
- //static void cb_pwmSleep(uint32_t t)
- //{
- // nrfx_pwm_uninit(&m_pwm);
- //}
- /**
- @brief 设置PWM的通道的加载模式
- @param load_mode -[in] 加载模式
- @return 无
- */
- static void PWM_SetChannelsLoadMode(nrf_pwm_dec_load_t load_mode)
- {
- m_config.load_mode = load_mode;
- }
- /*********************************************************************
- * PUBLIC FUNCTIONS
- */
- /**
- @brief 设置PWM的引脚通道
- @param p_pins -[in] 输入的引脚通道
- @return 无
- */
- void PWM_SetChannels(uint32_t channel_1, uint32_t channel_2, uint32_t channel_3, uint32_t channel_4)
- {
- m_config.output_pins[0] = channel_1;
- m_config.output_pins[1] = channel_2;
- m_config.output_pins[2] = channel_3;
- m_config.output_pins[3] = channel_4;
- }
- /**
- @brief 设置PWM的中断回调函数
- @param pwm_callback -[in] 中断函数的地址
- @param irq_priority -[in] 中断函数的优先级
- @return 无
- */
- void PWM_SetIRQ(nrfx_pwm_handler_t pwm_callback, uint8_t irq_priority)
- {
- m_pwm_callback = pwm_callback;
- m_config.irq_priority = irq_priority;
- }
- /**
- @brief 设置PWM的基础时钟
- @param clock -[in] 时钟频率
- @return 无
- */
- void PWM_SetBaseClock(nrf_pwm_clk_t clock)
- {
- m_config.base_clock = clock;
- }
- /**
- @brief 设置PWM的计数模式
- @param count_mode -[in] 计数模式
- @return 无
- */
- void PWM_SetCountMode(nrf_pwm_mode_t count_mode)
- {
- m_config.count_mode = count_mode;
- }
- /**
- @brief 设置PWM的最大的占空比阈值
- @param Max_duty_cycle_value -[in] 最大的占空比阈值,根据频率决定。
- @return 无
- */
- void PWM_SetDutyCycleThreshold(uint16_t Max_duty_cycle_value)
- {
- m_config.top_value = Max_duty_cycle_value;
- }
- /**
- @brief 设置PWM的序列的推进模式,定义下一个cycle的进行方式。
- @param step_mode -[in] 推进模式
- @return 无
- */
- void PWM_SetSequenceStepMode(nrf_pwm_dec_step_t step_mode)
- {
- m_config.step_mode = step_mode;
- }
- /**
- @brief 设置一个独立通道序列
- @param p_seqValues -[in] 指向一个独立通道序列
- @param seqValues_length - [in] 序列的大小
- @param seqValues_repeats -[in] 序列的每个占空比重复的次数
- @param seqValues_end_delay - [in] 每个序列中,最后一个占空比重复的次数
- @return 无
- */
- nrf_pwm_sequence_t* PWM_SetIndSequence(pwm_values_individual_t *p_seqValues, uint16_t seqValues_length, uint32_t seqValues_repeats, uint32_t seqValues_end_delay)
- {
- static nrf_pwm_sequence_t m_sequence;
-
- if(m_config.load_mode != NRF_PWM_LOAD_INDIVIDUAL)
- {
- PWM_SetChannelsLoadMode(NRF_PWM_LOAD_INDIVIDUAL);
- PWM_UnInitialize();
- PWM_Initialize();
- }
- m_sequence.values.p_individual = (nrf_pwm_values_individual_t*)p_seqValues;
- m_sequence.length = seqValues_length;
- m_sequence.repeats = seqValues_repeats;
- m_sequence.end_delay = seqValues_end_delay;
-
- return &m_sequence;
- }
- /**
- @brief 设置一个共用通道序列
- @param p_seqValues -[in] 指向一个共用通道序列
- @param seqValues_length - [in] 序列的大小
- @param seqValues_repeats -[in] 序列的每个占空比重复的次数
- @param seqValues_end_delay - [in] 每个序列中,最后一个占空比重复的次数
- @return 无
- */
- nrf_pwm_sequence_t* PWM_SetComSequence(pwm_values_common_t *p_seqValues, uint16_t seqValues_length, uint32_t seqValues_repeats, uint32_t seqValues_end_delay)
- {
- static nrf_pwm_sequence_t m_sequence;
-
- if(m_config.load_mode != NRF_PWM_LOAD_COMMON)
- {
- PWM_SetChannelsLoadMode(NRF_PWM_LOAD_COMMON);
- PWM_UnInitialize();
- PWM_Initialize();
- }
- m_sequence.values.p_common = (nrf_pwm_values_common_t*)p_seqValues;
- m_sequence.length = seqValues_length;
- m_sequence.repeats = seqValues_repeats;
- m_sequence.end_delay = seqValues_end_delay;
-
- return &m_sequence;
- }
- /**
- @brief 设置PWM的指定单个序列的播放
- @param pwm_sequence -[in] 输入序列的值
- @param playback_count -[in] 播放次数
- @param flags - [in] 播放模式
- @return 错误代码
- */
- uint32_t PWM_SetSimplePwmPlayBack(nrf_pwm_sequence_t *pwm_sequence, uint16_t playback_count, uint32_t flags)
- {
- return nrf_drv_pwm_simple_playback(&m_pwm, pwm_sequence, playback_count, flags);
- }
- /**
- @brief 设置PWM的指定多个序列的播放
- @param pwm_sequence0 -[in] 输入序列的值
- @param pwm_sequence1 -[in] 输入序列的值
- @param playback_count -[in] 播放次数
- @param flags - [in] 播放模式
- @return 错误代码
- */
- uint32_t PWM_SetComplexPwmPlayBack(nrf_pwm_sequence_t *pwm_sequence0, nrf_pwm_sequence_t *pwm_sequence1, uint16_t playback_count, uint32_t flags)
- {
- return nrf_drv_pwm_complex_playback(&m_pwm, pwm_sequence0, pwm_sequence1, playback_count, flags);
- }
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