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rtt-f030/bsp/nuvoton_m451/Libraries/StdDriver/src/pwm.c

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/**************************************************************************//**
* @file pwm.c
* @version V3.00
* $Revision: 21 $
* $Date: 15/08/11 10:26a $
* @brief M451 series PWM driver source file
*
* @note
* Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "M451Series.h"
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup PWM_Driver PWM Driver
@{
*/
/** @addtogroup PWM_EXPORTED_FUNCTIONS PWM Exported Functions
@{
*/
/**
* @brief Configure PWM capture and get the nearest unit time.
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32UnitTimeNsec The unit time of counter
* @param[in] u32CaptureEdge The condition to latch the counter. This parameter is not used
* @return The nearest unit time in nano second.
* @details This function is used to Configure PWM capture and get the nearest unit time.
*/
uint32_t PWM_ConfigCaptureChannel(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32UnitTimeNsec, uint32_t u32CaptureEdge)
{
uint32_t u32Src;
uint32_t u32PWMClockSrc;
uint32_t u32NearestUnitTimeNsec;
uint16_t u16Prescale = 1, u16CNR = 0xFFFF;
if(pwm == PWM0)
u32Src = CLK->CLKSEL2 & CLK_CLKSEL2_PWM0SEL_Msk;
else//(pwm == PWM1)
u32Src = CLK->CLKSEL2 & CLK_CLKSEL2_PWM1SEL_Msk;
if(u32Src == 0)
{
//clock source is from PLL clock
u32PWMClockSrc = CLK_GetPLLClockFreq();
}
else
{
//clock source is from PCLK
SystemCoreClockUpdate();
u32PWMClockSrc = SystemCoreClock;
}
u32PWMClockSrc /= 1000;
for(u16Prescale = 1; u16Prescale <= 0x1000; u16Prescale++)
{
u32NearestUnitTimeNsec = (1000000 * u16Prescale) / u32PWMClockSrc;
if(u32NearestUnitTimeNsec < u32UnitTimeNsec)
{
if(u16Prescale == 0x1000) //limit to the maximum unit time(nano second)
break;
if(!((1000000 * (u16Prescale + 1) > (u32NearestUnitTimeNsec * u32PWMClockSrc))))
break;
continue;
}
break;
}
// convert to real register value
// every two channels share a prescaler
PWM_SET_PRESCALER(pwm, u32ChannelNum, --u16Prescale);
// set PWM to down count type(edge aligned)
(pwm)->CTL1 = ((pwm)->CTL1 & ~(PWM_CTL1_CNTTYPE0_Msk << (2 * u32ChannelNum))) | (1UL << (2 * u32ChannelNum));
// set PWM to auto-reload mode
(pwm)->CTL1 &= ~(PWM_CTL1_CNTMODE0_Msk << u32ChannelNum);
PWM_SET_CNR(pwm, u32ChannelNum, u16CNR);
return (u32NearestUnitTimeNsec);
}
/**
* @brief This function Configure PWM generator and get the nearest frequency in edge aligned auto-reload mode
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Frequency Target generator frequency
* @param[in] u32DutyCycle Target generator duty cycle percentage. Valid range are between 0 ~ 100. 10 means 10%, 20 means 20%...
* @return Nearest frequency clock in nano second
* @note Since every two channels, (0 & 1), (2 & 3), shares a prescaler. Call this API to configure PWM frequency may affect
* existing frequency of other channel.
*/
uint32_t PWM_ConfigOutputChannel(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Frequency, uint32_t u32DutyCycle)
{
uint32_t u32Src;
uint32_t u32PWMClockSrc;
uint32_t i;
uint16_t u16Prescale = 1, u16CNR = 0xFFFF;
if(pwm == PWM0)
u32Src = CLK->CLKSEL2 & CLK_CLKSEL2_PWM0SEL_Msk;
else//(pwm == PWM1)
u32Src = CLK->CLKSEL2 & CLK_CLKSEL2_PWM1SEL_Msk;
if(u32Src == 0)
{
//clock source is from PLL clock
u32PWMClockSrc = CLK_GetPLLClockFreq();
}
else
{
//clock source is from PCLK
SystemCoreClockUpdate();
u32PWMClockSrc = SystemCoreClock;
}
for(u16Prescale = 1; u16Prescale < 0xFFF; u16Prescale++)//prescale could be 0~0xFFF
{
i = (u32PWMClockSrc / u32Frequency) / u16Prescale;
// If target value is larger than CNR, need to use a larger prescaler
if(i > (0x10000))
continue;
u16CNR = i;
break;
}
// Store return value here 'cos we're gonna change u16Prescale & u16CNR to the real value to fill into register
i = u32PWMClockSrc / (u16Prescale * u16CNR);
// convert to real register value
// every two channels share a prescaler
PWM_SET_PRESCALER(pwm, u32ChannelNum, --u16Prescale);
// set PWM to down count type(edge aligned)
(pwm)->CTL1 = ((pwm)->CTL1 & ~(PWM_CTL1_CNTTYPE0_Msk << (2 * u32ChannelNum))) | (1UL << (2 * u32ChannelNum));
// set PWM to auto-reload mode
(pwm)->CTL1 &= ~(PWM_CTL1_CNTMODE0_Msk << u32ChannelNum);
PWM_SET_CNR(pwm, u32ChannelNum, --u16CNR);
if(u32DutyCycle)
{
PWM_SET_CMR(pwm, u32ChannelNum, u32DutyCycle * (u16CNR + 1) / 100 - 1);
(pwm)->WGCTL0 &= ~((PWM_WGCTL0_PRDPCTL0_Msk | PWM_WGCTL0_ZPCTL0_Msk) << (u32ChannelNum * 2));
(pwm)->WGCTL0 |= (PWM_OUTPUT_LOW << (u32ChannelNum * 2 + PWM_WGCTL0_PRDPCTL0_Pos));
(pwm)->WGCTL1 &= ~((PWM_WGCTL1_CMPDCTL0_Msk | PWM_WGCTL1_CMPUCTL0_Msk) << (u32ChannelNum * 2));
(pwm)->WGCTL1 |= (PWM_OUTPUT_HIGH << (u32ChannelNum * 2 + PWM_WGCTL1_CMPDCTL0_Pos));
}
else
{
PWM_SET_CMR(pwm, u32ChannelNum, 0);
(pwm)->WGCTL0 &= ~((PWM_WGCTL0_PRDPCTL0_Msk | PWM_WGCTL0_ZPCTL0_Msk) << (u32ChannelNum * 2));
(pwm)->WGCTL0 |= (PWM_OUTPUT_LOW << (u32ChannelNum * 2 + PWM_WGCTL0_ZPCTL0_Pos));
(pwm)->WGCTL1 &= ~((PWM_WGCTL1_CMPDCTL0_Msk | PWM_WGCTL1_CMPUCTL0_Msk) << (u32ChannelNum * 2));
(pwm)->WGCTL1 |= (PWM_OUTPUT_HIGH << (u32ChannelNum * 2 + PWM_WGCTL1_CMPDCTL0_Pos));
}
return(i);
}
/**
* @brief Start PWM module
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to start PWM module.
*/
void PWM_Start(PWM_T *pwm, uint32_t u32ChannelMask)
{
(pwm)->CNTEN |= u32ChannelMask;
}
/**
* @brief Stop PWM module
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to stop PWM module.
*/
void PWM_Stop(PWM_T *pwm, uint32_t u32ChannelMask)
{
uint32_t i;
for(i = 0; i < PWM_CHANNEL_NUM; i ++)
{
if(u32ChannelMask & (1 << i))
{
(pwm)->PERIOD[i] = 0;
}
}
}
/**
* @brief Stop PWM generation immediately by clear channel enable bit
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to stop PWM generation immediately by clear channel enable bit.
*/
void PWM_ForceStop(PWM_T *pwm, uint32_t u32ChannelMask)
{
(pwm)->CNTEN &= ~u32ChannelMask;
}
/**
* @brief Enable selected channel to trigger EADC
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Condition The condition to trigger EADC. Combination of following conditions:
* - \ref PWM_TRIGGER_ADC_EVEN_ZERO_POINT
* - \ref PWM_TRIGGER_ADC_EVEN_PERIOD_POINT
* - \ref PWM_TRIGGER_ADC_EVEN_ZERO_OR_PERIOD_POINT
* - \ref PWM_TRIGGER_ADC_EVEN_COMPARE_UP_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_EVEN_COMPARE_DOWN_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_ODD_ZERO_POINT
* - \ref PWM_TRIGGER_ADC_ODD_PERIOD_POINT
* - \ref PWM_TRIGGER_ADC_ODD_ZERO_OR_PERIOD_POINT
* - \ref PWM_TRIGGER_ADC_ODD_COMPARE_UP_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_ODD_COMPARE_DOWN_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_CH_0_FREE_COMPARE_UP_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_CH_0_FREE_COMPARE_DOWN_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_CH_2_FREE_COMPARE_UP_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_CH_2_FREE_COMPARE_DOWN_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_CH_4_FREE_COMPARE_UP_COUNT_POINT
* - \ref PWM_TRIGGER_ADC_CH_4_FREE_COMPARE_DOWN_COUNT_POINT
* @return None
* @details This function is used to enable selected channel to trigger EADC.
*/
void PWM_EnableADCTrigger(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Condition)
{
if(u32ChannelNum < 4)
{
(pwm)->EADCTS0 &= ~((PWM_EADCTS0_TRGSEL0_Msk) << (u32ChannelNum * 8));
(pwm)->EADCTS0 |= ((PWM_EADCTS0_TRGEN0_Msk | u32Condition) << (u32ChannelNum * 8));
}
else
{
(pwm)->EADCTS1 &= ~((PWM_EADCTS1_TRGSEL4_Msk) << ((u32ChannelNum - 4) * 8));
(pwm)->EADCTS1 |= ((PWM_EADCTS1_TRGEN4_Msk | u32Condition) << ((u32ChannelNum - 4) * 8));
}
}
/**
* @brief Disable selected channel to trigger EADC
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable selected channel to trigger EADC.
*/
void PWM_DisableADCTrigger(PWM_T *pwm, uint32_t u32ChannelNum)
{
if(u32ChannelNum < 4)
{
(pwm)->EADCTS0 &= ~(PWM_EADCTS0_TRGEN0_Msk << (u32ChannelNum * 8));
}
else
{
(pwm)->EADCTS1 &= ~(PWM_EADCTS1_TRGEN4_Msk << ((u32ChannelNum - 4) * 8));
}
}
/**
* @brief Clear selected channel trigger EADC flag
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Condition This parameter is not used
* @return None
* @details This function is used to clear selected channel trigger EADC flag.
*/
void PWM_ClearADCTriggerFlag(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Condition)
{
(pwm)->STATUS = (PWM_STATUS_ADCTRGF0_Msk << u32ChannelNum);
}
/**
* @brief Get selected channel trigger EADC flag
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @retval 0 The specified channel trigger EADC to start of conversion flag is not set
* @retval 1 The specified channel trigger EADC to start of conversion flag is set
* @details This function is used to get PWM trigger EADC to start of conversion flag for specified channel.
*/
uint32_t PWM_GetADCTriggerFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return (((pwm)->STATUS & (PWM_STATUS_ADCTRGF0_Msk << u32ChannelNum)) ? 1 : 0);
}
/**
* @brief Enable selected channel to trigger DAC
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Condition The condition to trigger DAC. Combination of following conditions:
* - \ref PWM_TRIGGER_DAC_ZERO_POINT
* - \ref PWM_TRIGGER_DAC_PERIOD_POINT
* - \ref PWM_TRIGGER_DAC_COMPARE_UP_COUNT_POINT
* - \ref PWM_TRIGGER_DAC_COMPARE_DOWN_COUNT_POINT
* @return None
* @details This function is used to enable selected channel to trigger DAC.
*/
void PWM_EnableDACTrigger(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Condition)
{
(pwm)->DACTRGEN |= (u32Condition << u32ChannelNum);
}
/**
* @brief Disable selected channel to trigger DAC
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable selected channel to trigger DAC.
*/
void PWM_DisableDACTrigger(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->DACTRGEN &= ~((PWM_TRIGGER_DAC_ZERO_POINT | PWM_TRIGGER_DAC_PERIOD_POINT | PWM_TRIGGER_DAC_COMPARE_UP_COUNT_POINT | \
PWM_TRIGGER_DAC_COMPARE_DOWN_COUNT_POINT) << u32ChannelNum);
}
/**
* @brief Clear selected channel trigger DAC flag
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. This parameter is not used
* @param[in] u32Condition The condition to trigger DAC. This parameter is not used
* @return None
* @details This function is used to clear selected channel trigger DAC flag.
*/
void PWM_ClearDACTriggerFlag(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Condition)
{
(pwm)->STATUS = PWM_STATUS_DACTRGF_Msk;
}
/**
* @brief Get selected channel trigger DAC flag
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. This parameter is not used
* @retval 0 The specified channel trigger DAC to start of conversion flag is not set
* @retval 1 The specified channel trigger DAC to start of conversion flag is set
* @details This function is used to get selected channel trigger DAC flag.
*/
uint32_t PWM_GetDACTriggerFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return (((pwm)->STATUS & PWM_STATUS_DACTRGF_Msk) ? 1 : 0);
}
/**
* @brief This function enable fault brake of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* @param[in] u32LevelMask Output high or low while fault brake occurs, each bit represent the level of a channel
* while fault brake occurs. Bit 0 represents channel 0, bit 1 represents channel 1...
* @param[in] u32BrakeSource Fault brake source, could be one of following source
* - \ref PWM_FB_EDGE_ACMP0
* - \ref PWM_FB_EDGE_ACMP1
* - \ref PWM_FB_EDGE_BKP0
* - \ref PWM_FB_EDGE_BKP1
* - \ref PWM_FB_EDGE_SYS_CSS
* - \ref PWM_FB_EDGE_SYS_BOD
* - \ref PWM_FB_EDGE_SYS_RAM
* - \ref PWM_FB_EDGE_SYS_COR
* - \ref PWM_FB_LEVEL_ACMP0
* - \ref PWM_FB_LEVEL_ACMP1
* - \ref PWM_FB_LEVEL_BKP0
* - \ref PWM_FB_LEVEL_BKP1
* - \ref PWM_FB_LEVEL_SYS_CSS
* - \ref PWM_FB_LEVEL_SYS_BOD
* - \ref PWM_FB_LEVEL_SYS_RAM
* - \ref PWM_FB_LEVEL_SYS_COR
* @return None
* @details This function is used to enable fault brake of selected channel(s).
* The write-protection function should be disabled before using this function.
*/
void PWM_EnableFaultBrake(PWM_T *pwm, uint32_t u32ChannelMask, uint32_t u32LevelMask, uint32_t u32BrakeSource)
{
uint32_t i;
for(i = 0; i < PWM_CHANNEL_NUM; i ++)
{
if(u32ChannelMask & (1 << i))
{
if((u32BrakeSource == PWM_FB_EDGE_SYS_CSS) || (u32BrakeSource == PWM_FB_EDGE_SYS_BOD) || \
(u32BrakeSource == PWM_FB_EDGE_SYS_RAM) || (u32BrakeSource == PWM_FB_EDGE_SYS_COR) || \
(u32BrakeSource == PWM_FB_LEVEL_SYS_CSS) || (u32BrakeSource == PWM_FB_LEVEL_SYS_BOD) || \
(u32BrakeSource == PWM_FB_LEVEL_SYS_RAM) || (u32BrakeSource == PWM_FB_LEVEL_SYS_COR))
{
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) |= (u32BrakeSource & (PWM_BRKCTL0_1_SYSEBEN_Msk | PWM_BRKCTL0_1_SYSLBEN_Msk));
(pwm)->FAILBRK |= (u32BrakeSource & 0xF);
}
else
{
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) |= u32BrakeSource;
}
}
if(u32LevelMask & (1 << i))
{
if(i % 2 == 0)
{
//set brake action as high level for even channel
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) &= ~PWM_BRKCTL0_1_BRKAEVEN_Msk;
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) |= ((3UL) << PWM_BRKCTL0_1_BRKAEVEN_Pos);
}
else
{
//set brake action as high level for odd channel
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) &= ~PWM_BRKCTL0_1_BRKAODD_Msk;
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) |= ((3UL) << PWM_BRKCTL0_1_BRKAODD_Pos);
}
}
else
{
if(i % 2 == 0)
{
//set brake action as low level for even channel
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) &= ~PWM_BRKCTL0_1_BRKAEVEN_Msk;
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) |= ((2UL) << PWM_BRKCTL0_1_BRKAEVEN_Pos);
}
else
{
//set brake action as low level for odd channel
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) &= ~PWM_BRKCTL0_1_BRKAODD_Msk;
*(__IO uint32_t *)(&((pwm)->BRKCTL0_1) + (i >> 1)) |= ((2UL) << PWM_BRKCTL0_1_BRKAODD_Pos);
}
}
}
}
/**
* @brief Enable capture of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to enable capture of selected channel(s).
*/
void PWM_EnableCapture(PWM_T *pwm, uint32_t u32ChannelMask)
{
(pwm)->CAPINEN |= u32ChannelMask;
(pwm)->CAPCTL |= u32ChannelMask;
}
/**
* @brief Disable capture of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to disable capture of selected channel(s).
*/
void PWM_DisableCapture(PWM_T *pwm, uint32_t u32ChannelMask)
{
(pwm)->CAPINEN &= ~u32ChannelMask;
(pwm)->CAPCTL &= ~u32ChannelMask;
}
/**
* @brief Enables PWM output generation of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Set bit 0 to 1 enables channel 0 output, set bit 1 to 1 enables channel 1 output...
* @return None
* @details This function is used to enable PWM output generation of selected channel(s).
*/
void PWM_EnableOutput(PWM_T *pwm, uint32_t u32ChannelMask)
{
(pwm)->POEN |= u32ChannelMask;
}
/**
* @brief Disables PWM output generation of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel
* Set bit 0 to 1 disables channel 0 output, set bit 1 to 1 disables channel 1 output...
* @return None
* @details This function is used to disable PWM output generation of selected channel(s).
*/
void PWM_DisableOutput(PWM_T *pwm, uint32_t u32ChannelMask)
{
(pwm)->POEN &= ~u32ChannelMask;
}
/**
* @brief Enables PDMA transfer of selected channel for PWM capture
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number.
* @param[in] u32RisingFirst The capture order is rising, falling first. Every two channels share the same setting. Valid values are TRUE and FALSE.
* @param[in] u32Mode Captured data transferred by PDMA interrupt type. It could be either
* - \ref PWM_CAPTURE_PDMA_RISING_LATCH
* - \ref PWM_CAPTURE_PDMA_FALLING_LATCH
* - \ref PWM_CAPTURE_PDMA_RISING_FALLING_LATCH
* @return None
* @details This function is used to enable PDMA transfer of selected channel(s) for PWM capture.
* @note This function can only selects even or odd channel of pairs to do PDMA transfer.
*/
void PWM_EnablePDMA(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32RisingFirst, uint32_t u32Mode)
{
uint32_t u32IsOddCh;
u32IsOddCh = u32ChannelNum % 2;
(pwm)->PDMACTL = ((pwm)->PDMACTL & ~((PWM_PDMACTL_CHSEL0_1_Msk | PWM_PDMACTL_CAPORD0_1_Msk | PWM_PDMACTL_CAPMOD0_1_Msk) << ((u32ChannelNum >> 1) * 8))) | \
(((u32IsOddCh << PWM_PDMACTL_CHSEL0_1_Pos) | (u32RisingFirst << PWM_PDMACTL_CAPORD0_1_Pos) | \
u32Mode | PWM_PDMACTL_CHEN0_1_Msk) << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Disables PDMA transfer of selected channel for PWM capture
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number.
* @return None
* @details This function is used to enable PDMA transfer of selected channel(s) for PWM capture.
*/
void PWM_DisablePDMA(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->PDMACTL &= ~(PWM_PDMACTL_CHEN0_1_Msk << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Enable Dead zone of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Duration Dead zone length in PWM clock count, valid values are between 0~0xFFF, but 0 means there is no Dead zone.
* @return None
* @details This function is used to enable Dead zone of selected channel.
* The write-protection function should be disabled before using this function.
* @note Every two channels share the same setting.
*/
void PWM_EnableDeadZone(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Duration)
{
// every two channels share the same setting
*(__IO uint32_t *)(&((pwm)->DTCTL0_1) + (u32ChannelNum >> 1)) &= ~PWM_DTCTL0_1_DTCNT_Msk;
*(__IO uint32_t *)(&((pwm)->DTCTL0_1) + (u32ChannelNum >> 1)) |= PWM_DTCTL0_1_DTEN_Msk | u32Duration;
}
/**
* @brief Disable Dead zone of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable Dead zone of selected channel.
* The write-protection function should be disabled before using this function.
*/
void PWM_DisableDeadZone(PWM_T *pwm, uint32_t u32ChannelNum)
{
// every two channels shares the same setting
*(__IO uint32_t *)(&((pwm)->DTCTL0_1) + (u32ChannelNum >> 1)) &= ~PWM_DTCTL0_1_DTEN_Msk;
}
/**
* @brief Enable capture interrupt of selected channel.
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Edge Rising or falling edge to latch counter.
* - \ref PWM_CAPTURE_INT_RISING_LATCH
* - \ref PWM_CAPTURE_INT_FALLING_LATCH
* @return None
* @details This function is used to enable capture interrupt of selected channel.
*/
void PWM_EnableCaptureInt(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Edge)
{
(pwm)->CAPIEN |= (u32Edge << u32ChannelNum);
}
/**
* @brief Disable capture interrupt of selected channel.
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Edge Rising or falling edge to latch counter.
* - \ref PWM_CAPTURE_INT_RISING_LATCH
* - \ref PWM_CAPTURE_INT_FALLING_LATCH
* @return None
* @details This function is used to disable capture interrupt of selected channel.
*/
void PWM_DisableCaptureInt(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Edge)
{
(pwm)->CAPIEN &= ~(u32Edge << u32ChannelNum);
}
/**
* @brief Clear capture interrupt of selected channel.
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32Edge Rising or falling edge to latch counter.
* - \ref PWM_CAPTURE_INT_RISING_LATCH
* - \ref PWM_CAPTURE_INT_FALLING_LATCH
* @return None
* @details This function is used to clear capture interrupt of selected channel.
*/
void PWM_ClearCaptureIntFlag(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Edge)
{
(pwm)->CAPIF = (u32Edge << u32ChannelNum);
}
/**
* @brief Get capture interrupt of selected channel.
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @retval 0 No capture interrupt
* @retval 1 Rising edge latch interrupt
* @retval 2 Falling edge latch interrupt
* @retval 3 Rising and falling latch interrupt
* @details This function is used to get capture interrupt of selected channel.
*/
uint32_t PWM_GetCaptureIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return (((((pwm)->CAPIF & (PWM_CAPIF_CFLIF0_Msk << u32ChannelNum)) ? 1 : 0) << 1) | \
(((pwm)->CAPIF & (PWM_CAPIF_CRLIF0_Msk << u32ChannelNum)) ? 1 : 0));
}
/**
* @brief Enable duty interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32IntDutyType Duty interrupt type, could be either
* - \ref PWM_DUTY_INT_DOWN_COUNT_MATCH_CMP
* - \ref PWM_DUTY_INT_UP_COUNT_MATCH_CMP
* @return None
* @details This function is used to enable duty interrupt of selected channel.
*/
void PWM_EnableDutyInt(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32IntDutyType)
{
(pwm)->INTEN0 |= (u32IntDutyType << u32ChannelNum);
}
/**
* @brief Disable duty interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable duty interrupt of selected channel.
*/
void PWM_DisableDutyInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTEN0 &= ~((PWM_DUTY_INT_DOWN_COUNT_MATCH_CMP | PWM_DUTY_INT_UP_COUNT_MATCH_CMP) << u32ChannelNum);
}
/**
* @brief Clear duty interrupt flag of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to clear duty interrupt flag of selected channel.
*/
void PWM_ClearDutyIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTSTS0 = (PWM_INTSTS0_CMPUIF0_Msk | PWM_INTSTS0_CMPDIF0_Msk) << u32ChannelNum;
}
/**
* @brief Get duty interrupt flag of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return Duty interrupt flag of specified channel
* @retval 0 Duty interrupt did not occur
* @retval 1 Duty interrupt occurred
* @details This function is used to get duty interrupt flag of selected channel.
*/
uint32_t PWM_GetDutyIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return ((((pwm)->INTSTS0 & ((PWM_INTSTS0_CMPDIF0_Msk | PWM_INTSTS0_CMPUIF0_Msk) << u32ChannelNum))) ? 1 : 0);
}
/**
* @brief This function enable fault brake interrupt
* @param[in] pwm The pointer of the specified PWM module
* @param[in] u32BrakeSource Fault brake source.
* - \ref PWM_FB_EDGE
* - \ref PWM_FB_LEVEL
* @return None
* @details This function is used to enable fault brake interrupt.
* The write-protection function should be disabled before using this function.
* @note Every two channels share the same setting.
*/
void PWM_EnableFaultBrakeInt(PWM_T *pwm, uint32_t u32BrakeSource)
{
(pwm)->INTEN1 |= (0x7 << u32BrakeSource);
}
/**
* @brief This function disable fault brake interrupt
* @param[in] pwm The pointer of the specified PWM module
* @param[in] u32BrakeSource Fault brake source.
* - \ref PWM_FB_EDGE
* - \ref PWM_FB_LEVEL
* @return None
* @details This function is used to disable fault brake interrupt.
* The write-protection function should be disabled before using this function.
* @note Every two channels share the same setting.
*/
void PWM_DisableFaultBrakeInt(PWM_T *pwm, uint32_t u32BrakeSource)
{
(pwm)->INTEN1 &= ~(0x7 << u32BrakeSource);
}
/**
* @brief This function clear fault brake interrupt of selected source
* @param[in] pwm The pointer of the specified PWM module
* @param[in] u32BrakeSource Fault brake source.
* - \ref PWM_FB_EDGE
* - \ref PWM_FB_LEVEL
* @return None
* @details This function is used to clear fault brake interrupt of selected source.
* The write-protection function should be disabled before using this function.
*/
void PWM_ClearFaultBrakeIntFlag(PWM_T *pwm, uint32_t u32BrakeSource)
{
(pwm)->INTSTS1 = (0x3f << u32BrakeSource);
}
/**
* @brief This function get fault brake interrupt flag of selected source
* @param[in] pwm The pointer of the specified PWM module
* @param[in] u32BrakeSource Fault brake source, could be either
* - \ref PWM_FB_EDGE
* - \ref PWM_FB_LEVEL
* @return Fault brake interrupt flag of specified source
* @retval 0 Fault brake interrupt did not occurred
* @retval 1 Fault brake interrupt occurred
* @details This function is used to get fault brake interrupt flag of selected source.
*/
uint32_t PWM_GetFaultBrakeIntFlag(PWM_T *pwm, uint32_t u32BrakeSource)
{
return (((pwm)->INTSTS1 & (0x3f << u32BrakeSource)) ? 1 : 0);
}
/**
* @brief Enable period interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32IntPeriodType Period interrupt type. This parameter is not used.
* @return None
* @details This function is used to enable period interrupt of selected channel.
*/
void PWM_EnablePeriodInt(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32IntPeriodType)
{
(pwm)->INTEN0 |= (PWM_INTEN0_PIEN0_Msk << u32ChannelNum);
}
/**
* @brief Disable period interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable period interrupt of selected channel.
*/
void PWM_DisablePeriodInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTEN0 &= ~(PWM_INTEN0_PIEN0_Msk << u32ChannelNum);
}
/**
* @brief Clear period interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to clear period interrupt of selected channel.
*/
void PWM_ClearPeriodIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTSTS0 = (PWM_INTSTS0_PIF0_Msk << u32ChannelNum);
}
/**
* @brief Get period interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return Period interrupt flag of specified channel
* @retval 0 Period interrupt did not occur
* @retval 1 Period interrupt occurred
* @details This function is used to get period interrupt of selected channel.
*/
uint32_t PWM_GetPeriodIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return ((((pwm)->INTSTS0 & (PWM_INTSTS0_PIF0_Msk << u32ChannelNum))) ? 1 : 0);
}
/**
* @brief Enable zero interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to enable zero interrupt of selected channel.
*/
void PWM_EnableZeroInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTEN0 |= (PWM_INTEN0_ZIEN0_Msk << u32ChannelNum);
}
/**
* @brief Disable zero interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable zero interrupt of selected channel.
*/
void PWM_DisableZeroInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTEN0 &= ~(PWM_INTEN0_ZIEN0_Msk << u32ChannelNum);
}
/**
* @brief Clear zero interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to clear zero interrupt of selected channel.
*/
void PWM_ClearZeroIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTSTS0 = (PWM_INTSTS0_ZIF0_Msk << u32ChannelNum);
}
/**
* @brief Get zero interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return Zero interrupt flag of specified channel
* @retval 0 Zero interrupt did not occur
* @retval 1 Zero interrupt occurred
* @details This function is used to get zero interrupt of selected channel.
*/
uint32_t PWM_GetZeroIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return ((((pwm)->INTSTS0 & (PWM_INTSTS0_ZIF0_Msk << u32ChannelNum))) ? 1 : 0);
}
/**
* @brief Enable interrupt flag accumulator of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32IntFlagCnt Interrupt flag counter. Valid values are between 0~15.
* @param[in] u32IntAccSrc Interrupt flag accumulator source selection.
* - \ref PWM_IFA_EVEN_ZERO_POINT
* - \ref PWM_IFA_EVEN_PERIOD_POINT
* - \ref PWM_IFA_EVEN_COMPARE_UP_COUNT_POINT
* - \ref PWM_IFA_EVEN_COMPARE_DOWN_COUNT_POINT
* - \ref PWM_IFA_ODD_ZERO_POINT
* - \ref PWM_IFA_ODD_PERIOD_POINT
* - \ref PWM_IFA_ODD_COMPARE_UP_COUNT_POINT
* - \ref PWM_IFA_ODD_COMPARE_DOWN_COUNT_POINT
* @return None
* @details This function is used to enable interrupt flag accumulator of selected channel.
* @note Every two channels share the same setting.
*/
void PWM_EnableAcc(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32IntFlagCnt, uint32_t u32IntAccSrc)
{
(pwm)->IFA = ((pwm)->IFA & ~((PWM_IFA_IFCNT0_1_Msk | PWM_IFA_IFSEL0_1_Msk) << ((u32ChannelNum >> 1) * 8))) | \
((PWM_IFA_IFAEN0_1_Msk | (u32IntAccSrc << PWM_IFA_IFSEL0_1_Pos) | u32IntFlagCnt) << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Disable interrupt flag accumulator of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to Disable interrupt flag accumulator of selected channel.
* @note Every two channels share the same setting.
*/
void PWM_DisableAcc(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->IFA = (pwm)->IFA & ~(PWM_IFA_IFAEN0_1_Msk << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Enable interrupt flag accumulator interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to enable interrupt flag accumulator interrupt of selected channel.
* @note Every two channels share the same setting.
*/
void PWM_EnableAccInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTEN0 |= (PWM_INTEN0_IFAIEN0_1_Msk << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Disable interrupt flag accumulator interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to disable interrupt flag accumulator interrupt of selected channel.
* @note Every two channels share the same setting.
*/
void PWM_DisableAccInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTEN0 &= ~(PWM_INTEN0_IFAIEN0_1_Msk << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Clear interrupt flag accumulator interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to clear interrupt flag accumulator interrupt of selected channel.
* @note Every two channels share the same setting.
*/
void PWM_ClearAccInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->INTSTS0 = (PWM_INTSTS0_IFAIF0_1_Msk << ((u32ChannelNum >> 1) * 8));
}
/**
* @brief Get interrupt flag accumulator interrupt of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @retval 0 Accumulator interrupt did not occur
* @retval 1 Accumulator interrupt occurred
* @details This function is used to Get interrupt flag accumulator interrupt of selected channel.
* @note Every two channels share the same setting.
*/
uint32_t PWM_GetAccInt(PWM_T *pwm, uint32_t u32ChannelNum)
{
return (((pwm)->INTSTS0 & (PWM_INTSTS0_IFAIF0_1_Msk << ((u32ChannelNum >> 1) * 8))) ? 1 : 0);
}
/**
* @brief Clear free trigger duty interrupt flag of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to clear free trigger duty interrupt flag of selected channel.
*/
void PWM_ClearFTDutyIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->FTCI = ((PWM_FTCI_FTCMU0_Msk | PWM_FTCI_FTCMD0_Msk) << (u32ChannelNum >> 1));
}
/**
* @brief Get free trigger duty interrupt flag of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return Duty interrupt flag of specified channel
* @retval 0 Free trigger duty interrupt did not occur
* @retval 1 Free trigger duty interrupt occurred
* @details This function is used to get free trigger duty interrupt flag of selected channel.
*/
uint32_t PWM_GetFTDutyIntFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return (((pwm)->FTCI & ((PWM_FTCI_FTCMU0_Msk | PWM_FTCI_FTCMD0_Msk) << (u32ChannelNum >> 1))) ? 1 : 0);
}
/**
* @brief Enable load mode of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32LoadMode PWM counter loading mode.
* - \ref PWM_LOAD_MODE_IMMEDIATE
* - \ref PWM_LOAD_MODE_WINDOW
* - \ref PWM_LOAD_MODE_CENTER
* @return None
* @details This function is used to enable load mode of selected channel.
*/
void PWM_EnableLoadMode(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32LoadMode)
{
(pwm)->CTL0 |= (u32LoadMode << u32ChannelNum);
}
/**
* @brief Disable load mode of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32LoadMode PWM counter loading mode.
* - \ref PWM_LOAD_MODE_IMMEDIATE
* - \ref PWM_LOAD_MODE_WINDOW
* - \ref PWM_LOAD_MODE_CENTER
* @return None
* @details This function is used to disable load mode of selected channel.
*/
void PWM_DisableLoadMode(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32LoadMode)
{
(pwm)->CTL0 &= ~(u32LoadMode << u32ChannelNum);
}
/**
* @brief Configure synchronization phase of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32SyncSrc PWM synchronize source selection.
* - \ref PWM_SYNC_OUT_FROM_SYNCIN_SWSYNC
* - \ref PWM_SYNC_OUT_FROM_COUNT_TO_ZERO
* - \ref PWM_SYNC_OUT_FROM_COUNT_TO_COMPARATOR
* - \ref PWM_SYNC_OUT_DISABLE
* @param[in] u32Direction Phase direction. Control PWM counter count decrement or increment after synchronizing.
* - \ref PWM_PHS_DIR_DECREMENT
* - \ref PWM_PHS_DIR_INCREMENT
* @param[in] u32StartPhase Synchronous start phase value. Valid values are between 0~65535.
* @return None
* @details This function is used to configure synchronization phase of selected channel.
* @note Every two channels share the same setting.
*/
void PWM_ConfigSyncPhase(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32SyncSrc, uint32_t u32Direction, uint32_t u32StartPhase)
{
// every two channels shares the same setting
u32ChannelNum >>= 1;
(pwm)->SYNC = (((pwm)->SYNC & ~((PWM_SYNC_SINSRC0_Msk << (u32ChannelNum << 1)) | (PWM_SYNC_PHSDIR0_Msk << u32ChannelNum))) | \
(u32Direction << PWM_SYNC_PHSDIR0_Pos << u32ChannelNum) | (u32SyncSrc << PWM_SYNC_SINSRC0_Pos) << (u32ChannelNum << 1));
*(__IO uint32_t *)(&((pwm)->PHS0_1) + u32ChannelNum) = u32StartPhase;
}
/**
* @brief Enable SYNC phase of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to enable SYNC phase of selected channel(s).
* @note Every two channels share the same setting.
*/
void PWM_EnableSyncPhase(PWM_T *pwm, uint32_t u32ChannelMask)
{
uint32_t i;
for(i = 0; i < PWM_CHANNEL_NUM; i ++)
{
if(u32ChannelMask & (1 << i))
{
(pwm)->SYNC |= (PWM_SYNC_PHSEN0_Msk << (i >> 1));
}
}
}
/**
* @brief Disable SYNC phase of selected channel(s)
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel.
* Bit 0 is channel 0, bit 1 is channel 1...
* @return None
* @details This function is used to disable SYNC phase of selected channel(s).
* @note Every two channels share the same setting.
*/
void PWM_DisableSyncPhase(PWM_T *pwm, uint32_t u32ChannelMask)
{
uint32_t i;
for(i = 0; i < PWM_CHANNEL_NUM; i ++)
{
if(u32ChannelMask & (1 << i))
{
(pwm)->SYNC &= ~(PWM_SYNC_PHSEN0_Msk << (i >> 1));
}
}
}
/**
* @brief Enable PWM SYNC_IN noise filter function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ClkCnt SYNC Edge Detector Filter Count. This controls the counter number of edge detector.
* The valid value is 0~7.
* @param[in] u32ClkDivSel SYNC Edge Detector Filter Clock Selection.
* - \ref PWM_NF_CLK_DIV_1
* - \ref PWM_NF_CLK_DIV_2
* - \ref PWM_NF_CLK_DIV_4
* - \ref PWM_NF_CLK_DIV_8
* - \ref PWM_NF_CLK_DIV_16
* - \ref PWM_NF_CLK_DIV_32
* - \ref PWM_NF_CLK_DIV_64
* - \ref PWM_NF_CLK_DIV_128
* @return None
* @details This function is used to enable PWM SYNC_IN noise filter function.
*/
void PWM_EnableSyncNoiseFilter(PWM_T *pwm, uint32_t u32ClkCnt, uint32_t u32ClkDivSel)
{
(pwm)->SYNC = ((pwm)->SYNC & ~(PWM_SYNC_SFLTCNT_Msk | PWM_SYNC_SFLTCSEL_Msk)) | \
((u32ClkCnt << PWM_SYNC_SFLTCNT_Pos) | (u32ClkDivSel << PWM_SYNC_SFLTCSEL_Pos) | PWM_SYNC_SNFLTEN_Msk);
}
/**
* @brief Disable PWM SYNC_IN noise filter function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @return None
* @details This function is used to Disable PWM SYNC_IN noise filter function.
*/
void PWM_DisableSyncNoiseFilter(PWM_T *pwm)
{
(pwm)->SYNC &= ~PWM_SYNC_SNFLTEN_Msk;
}
/**
* @brief Enable PWM SYNC input pin inverse function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @return None
* @details This function is used to enable PWM SYNC input pin inverse function.
*/
void PWM_EnableSyncPinInverse(PWM_T *pwm)
{
(pwm)->SYNC |= PWM_SYNC_SINPINV_Msk;
}
/**
* @brief Disable PWM SYNC input pin inverse function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @return None
* @details This function is used to Disable PWM SYNC input pin inverse function.
*/
void PWM_DisableSyncPinInverse(PWM_T *pwm)
{
(pwm)->SYNC &= ~PWM_SYNC_SINPINV_Msk;
}
/**
* @brief Set PWM clock source
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @param[in] u32ClkSrcSel PWM external clock source.
* - \ref PWM_CLKSRC_PWM_CLK
* - \ref PWM_CLKSRC_TIMER0
* - \ref PWM_CLKSRC_TIMER1
* - \ref PWM_CLKSRC_TIMER2
* - \ref PWM_CLKSRC_TIMER3
* @return None
* @details This function is used to set PWM clock source.
* @note Every two channels share the same setting.
*/
void PWM_SetClockSource(PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32ClkSrcSel)
{
(pwm)->CLKSRC = (pwm)->CLKSRC & ~(PWM_CLKSRC_ECLKSRC0_Msk << ((u32ChannelNum >> 1) * PWM_CLKSRC_ECLKSRC2_Pos)) | \
(u32ClkSrcSel << ((u32ChannelNum >> 1) * PWM_CLKSRC_ECLKSRC2_Pos));
}
/**
* @brief Enable PWM brake noise filter function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32BrakePinNum Brake pin selection. Valid values are 0 or 1.
* @param[in] u32ClkCnt SYNC Edge Detector Filter Count. This controls the counter number of edge detector
* @param[in] u32ClkDivSel SYNC Edge Detector Filter Clock Selection.
* - \ref PWM_NF_CLK_DIV_1
* - \ref PWM_NF_CLK_DIV_2
* - \ref PWM_NF_CLK_DIV_4
* - \ref PWM_NF_CLK_DIV_8
* - \ref PWM_NF_CLK_DIV_16
* - \ref PWM_NF_CLK_DIV_32
* - \ref PWM_NF_CLK_DIV_64
* - \ref PWM_NF_CLK_DIV_128
* @return None
* @details This function is used to enable PWM brake noise filter function.
*/
void PWM_EnableBrakeNoiseFilter(PWM_T *pwm, uint32_t u32BrakePinNum, uint32_t u32ClkCnt, uint32_t u32ClkDivSel)
{
(pwm)->BNF = ((pwm)->BNF & ~((PWM_BNF_BRK0FCNT_Msk | PWM_BNF_BRK0NFSEL_Msk) << (u32BrakePinNum * PWM_BNF_BRK1NFEN_Pos))) | \
(((u32ClkCnt << PWM_BNF_BRK0FCNT_Pos) | (u32ClkDivSel << PWM_BNF_BRK0NFSEL_Pos) | PWM_BNF_BRK0NFEN_Msk) << (u32BrakePinNum * PWM_BNF_BRK1NFEN_Pos));
}
/**
* @brief Disable PWM brake noise filter function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32BrakePinNum Brake pin selection. Valid values are 0 or 1.
* @return None
* @details This function is used to disable PWM brake noise filter function.
*/
void PWM_DisableBrakeNoiseFilter(PWM_T *pwm, uint32_t u32BrakePinNum)
{
(pwm)->BNF &= ~(PWM_BNF_BRK0NFEN_Msk << (u32BrakePinNum * PWM_BNF_BRK1NFEN_Pos));
}
/**
* @brief Enable PWM brake pin inverse function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32BrakePinNum Brake pin selection. Valid values are 0 or 1.
* @return None
* @details This function is used to enable PWM brake pin inverse function.
*/
void PWM_EnableBrakePinInverse(PWM_T *pwm, uint32_t u32BrakePinNum)
{
(pwm)->BNF |= (PWM_BNF_BRK0PINV_Msk << (u32BrakePinNum * PWM_BNF_BRK1NFEN_Pos));
}
/**
* @brief Disable PWM brake pin inverse function
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32BrakePinNum Brake pin selection. Valid values are 0 or 1.
* @return None
* @details This function is used to disable PWM brake pin inverse function.
*/
void PWM_DisableBrakePinInverse(PWM_T *pwm, uint32_t u32BrakePinNum)
{
(pwm)->BNF &= ~(PWM_BNF_BRK0PINV_Msk << (u32BrakePinNum * PWM_BNF_BRK1NFEN_Pos));
}
/**
* @brief Set PWM brake pin source
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32BrakePinNum Brake pin selection. Valid values are 0 or 1.
* @param[in] u32SelAnotherModule Select to another module. Valid values are TRUE or FALSE.
* @return None
* @details This function is used to set PWM brake pin source.
* @note This function is only supported in M45xD/M45xC.
*/
void PWM_SetBrakePinSource(PWM_T *pwm, uint32_t u32BrakePinNum, uint32_t u32SelAnotherModule)
{
(pwm)->BNF = ((pwm)->BNF & ~(PWM_BNF_BK0SRC_Msk << (u32BrakePinNum * 8))) | (u32SelAnotherModule << (PWM_BNF_BK0SRC_Pos + u32BrakePinNum * 8));
}
/**
* @brief Get the time-base counter reached its maximum value flag of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return Count to max interrupt flag of specified channel
* @retval 0 Count to max interrupt did not occur
* @retval 1 Count to max interrupt occurred
* @details This function is used to get the time-base counter reached its maximum value flag of selected channel.
*/
uint32_t PWM_GetWrapAroundFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
return (((pwm)->STATUS & (PWM_STATUS_CNTMAXF0_Msk << u32ChannelNum)) ? 1 : 0);
}
/**
* @brief Clear the time-base counter reached its maximum value flag of selected channel
* @param[in] pwm The pointer of the specified PWM module
* - PWM0 : PWM Group 0
* - PWM1 : PWM Group 1
* @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5
* @return None
* @details This function is used to clear the time-base counter reached its maximum value flag of selected channel.
*/
void PWM_ClearWrapAroundFlag(PWM_T *pwm, uint32_t u32ChannelNum)
{
(pwm)->STATUS = (PWM_STATUS_CNTMAXF0_Msk << u32ChannelNum);
}
/*@}*/ /* end of group PWM_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group PWM_Driver */
/*@}*/ /* end of group Standard_Driver */
/*** (C) COPYRIGHT 2014~2015 Nuvoton Technology Corp. ***/
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