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PWM_Public_Functions
Functions

PWM_Public_Functions
[PWM]

Functions

IntStatus PWM_GetIntStatus (LPC_PWM_TypeDef *PWMx, uint32_t IntFlag)
 Check whether specified interrupt flag in PWM is set or not.
void PWM_ClearIntPending (LPC_PWM_TypeDef *PWMx, uint32_t IntFlag)
 Clear specified PWM Interrupt pending.
void PWM_ConfigStructInit (uint8_t PWMTimerCounterMode, void *PWM_InitStruct)
 Fills each PWM_InitStruct member with its default value:

  • If PWMCounterMode = PWM_MODE_TIMER: + PrescaleOption = PWM_TIMER_PRESCALE_USVAL + PrescaleValue = 1
  • If PWMCounterMode = PWM_MODE_COUNTER: + CountInputSelect = PWM_COUNTER_PCAP1_0 + CounterOption = PWM_COUNTER_RISING.

void PWM_Init (LPC_PWM_TypeDef *PWMx, uint32_t PWMTimerCounterMode, void *PWM_ConfigStruct)
 Initializes the PWMx peripheral corresponding to the specified parameters in the PWM_ConfigStruct.
void PWM_DeInit (LPC_PWM_TypeDef *PWMx)
 De-initializes the PWM peripheral registers to their default reset values.
void PWM_Cmd (LPC_PWM_TypeDef *PWMx, FunctionalState NewState)
 Enable/Disable PWM peripheral.
void PWM_CounterCmd (LPC_PWM_TypeDef *PWMx, FunctionalState NewState)
 Enable/Disable Counter in PWM peripheral.
void PWM_ResetCounter (LPC_PWM_TypeDef *PWMx)
 Reset Counter in PWM peripheral.
void PWM_ConfigMatch (LPC_PWM_TypeDef *PWMx, PWM_MATCHCFG_Type *PWM_MatchConfigStruct)
 Configures match for PWM peripheral.
void PWM_ConfigCapture (LPC_PWM_TypeDef *PWMx, PWM_CAPTURECFG_Type *PWM_CaptureConfigStruct)
 Configures capture input for PWM peripheral.
uint32_t PWM_GetCaptureValue (LPC_PWM_TypeDef *PWMx, uint8_t CaptureChannel)
 Read value of capture register PWM peripheral.
void PWM_MatchUpdate (LPC_PWM_TypeDef *PWMx, uint8_t MatchChannel,\uint32_t MatchValue, uint8_t UpdateType)
 Update value for each PWM channel with update type option.
void PWM_ChannelConfig (LPC_PWM_TypeDef *PWMx, uint8_t PWMChannel, uint8_t ModeOption)
 Configure Edge mode for each PWM channel.
void PWM_ChannelCmd (LPC_PWM_TypeDef *PWMx, uint8_t PWMChannel, FunctionalState NewState)
 Enable/Disable PWM channel output.

Function Documentation

void PWM_ChannelCmd ( LPC_PWM_TypeDef *  PWMx,
uint8_t  PWMChannel,
FunctionalState  NewState 
)

Enable/Disable PWM channel output.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]PWMChannelPWM channel, should be in range from 1 to 6
[in]NewStateNew State of this function, should be:

  • ENABLE: Enable this PWM channel output
  • DISABLE: Disable this PWM channel output
Returns:
None

Definition at line 507 of file lpc17xx_pwm.c.

void PWM_ChannelConfig ( LPC_PWM_TypeDef *  PWMx,
uint8_t  PWMChannel,
uint8_t  ModeOption 
)

Configure Edge mode for each PWM channel.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]PWMChannelPWM channel, should be in range from 2 to 6
[in]ModeOptionPWM mode option, should be:

  • PWM_CHANNEL_SINGLE_EDGE: Single Edge mode
  • PWM_CHANNEL_DUAL_EDGE: Dual Edge mode
Returns:
None Note: PWM Channel 1 can not be selected for mode option

Definition at line 478 of file lpc17xx_pwm.c.

void PWM_ClearIntPending ( LPC_PWM_TypeDef *  PWMx,
uint32_t  IntFlag 
)

Clear specified PWM Interrupt pending.

Parameters:
[in]PWMx,:PWM peripheral, should be PWM1
[in]IntFlag,:PWM interrupt flag, should be:

  • PWM_INTSTAT_MR0: Interrupt flag for PWM match channel 0
  • PWM_INTSTAT_MR1: Interrupt flag for PWM match channel 1
  • PWM_INTSTAT_MR2: Interrupt flag for PWM match channel 2
  • PWM_INTSTAT_MR3: Interrupt flag for PWM match channel 3
  • PWM_INTSTAT_MR4: Interrupt flag for PWM match channel 4
  • PWM_INTSTAT_MR5: Interrupt flag for PWM match channel 5
  • PWM_INTSTAT_MR6: Interrupt flag for PWM match channel 6
  • PWM_INTSTAT_CAP0: Interrupt flag for capture input 0
  • PWM_INTSTAT_CAP1: Interrupt flag for capture input 1
Returns:
None

Definition at line 89 of file lpc17xx_pwm.c.

void PWM_Cmd ( LPC_PWM_TypeDef *  PWMx,
FunctionalState  NewState 
)

Enable/Disable PWM peripheral.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]NewStateNew State of this function, should be:

  • ENABLE: Enable PWM peripheral
  • DISABLE: Disable PWM peripheral
Returns:
None

Definition at line 229 of file lpc17xx_pwm.c.

void PWM_ConfigCapture ( LPC_PWM_TypeDef *  PWMx,
PWM_CAPTURECFG_Type *  PWM_CaptureConfigStruct 
)

Configures capture input for PWM peripheral.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]PWM_CaptureConfigStructPointer to a PWM_CAPTURECFG_Type structure that contains the configuration information for the specified PWM capture input function.
Returns:
None

Definition at line 340 of file lpc17xx_pwm.c.

void PWM_ConfigMatch ( LPC_PWM_TypeDef *  PWMx,
PWM_MATCHCFG_Type *  PWM_MatchConfigStruct 
)

Configures match for PWM peripheral.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]PWM_MatchConfigStructPointer to a PWM_MATCHCFG_Type structure that contains the configuration information for the specified PWM match function.
Returns:
None

Definition at line 289 of file lpc17xx_pwm.c.

void PWM_ConfigStructInit ( uint8_t  PWMTimerCounterMode,
void *  PWM_InitStruct 
)

Fills each PWM_InitStruct member with its default value:

  • If PWMCounterMode = PWM_MODE_TIMER: + PrescaleOption = PWM_TIMER_PRESCALE_USVAL + PrescaleValue = 1
  • If PWMCounterMode = PWM_MODE_COUNTER: + CountInputSelect = PWM_COUNTER_PCAP1_0 + CounterOption = PWM_COUNTER_RISING.

Parameters:
[in]PWMTimerCounterModeTimer or Counter mode, should be:

  • PWM_MODE_TIMER: Counter of PWM peripheral is in Timer mode
  • PWM_MODE_COUNTER: Counter of PWM peripheral is in Counter mode
[in]PWM_InitStructPointer to structure (PWM_TIMERCFG_Type or PWM_COUNTERCFG_Type) which will be initialized.
Returns:
None Note: PWM_InitStruct pointer will be assigned to corresponding structure (PWM_TIMERCFG_Type or PWM_COUNTERCFG_Type) due to PWMTimerCounterMode.

Definition at line 115 of file lpc17xx_pwm.c.

void PWM_CounterCmd ( LPC_PWM_TypeDef *  PWMx,
FunctionalState  NewState 
)

Enable/Disable Counter in PWM peripheral.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]NewStateNew State of this function, should be:

  • ENABLE: Enable Counter in PWM peripheral
  • DISABLE: Disable Counter in PWM peripheral
Returns:
None

Definition at line 253 of file lpc17xx_pwm.c.

void PWM_DeInit ( LPC_PWM_TypeDef *  PWMx )

De-initializes the PWM peripheral registers to their default reset values.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
Returns:
None

Definition at line 207 of file lpc17xx_pwm.c.

uint32_t PWM_GetCaptureValue ( LPC_PWM_TypeDef *  PWMx,
uint8_t  CaptureChannel 
)

Read value of capture register PWM peripheral.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]CaptureChannel,:capture channel number, should be in range 0 to 1
Returns:
Value of capture register

Definition at line 387 of file lpc17xx_pwm.c.

IntStatus PWM_GetIntStatus ( LPC_PWM_TypeDef *  PWMx,
uint32_t  IntFlag 
)

Check whether specified interrupt flag in PWM is set or not.

Parameters:
[in]PWMx,:PWM peripheral, should be PWM1
[in]IntFlag,:PWM interrupt flag, should be:

  • PWM_INTSTAT_MR0: Interrupt flag for PWM match channel 0
  • PWM_INTSTAT_MR1: Interrupt flag for PWM match channel 1
  • PWM_INTSTAT_MR2: Interrupt flag for PWM match channel 2
  • PWM_INTSTAT_MR3: Interrupt flag for PWM match channel 3
  • PWM_INTSTAT_MR4: Interrupt flag for PWM match channel 4
  • PWM_INTSTAT_MR5: Interrupt flag for PWM match channel 5
  • PWM_INTSTAT_MR6: Interrupt flag for PWM match channel 6
  • PWM_INTSTAT_CAP0: Interrupt flag for capture input 0
  • PWM_INTSTAT_CAP1: Interrupt flag for capture input 1
Returns:
New State of PWM interrupt flag (SET or RESET)

Definition at line 64 of file lpc17xx_pwm.c.

void PWM_Init ( LPC_PWM_TypeDef *  PWMx,
uint32_t  PWMTimerCounterMode,
void *  PWM_ConfigStruct 
)

Initializes the PWMx peripheral corresponding to the specified parameters in the PWM_ConfigStruct.

Parameters:
[in]PWMxPWM peripheral, should be PWM1
[in]PWMTimerCounterModeTimer or Counter mode, should be:

  • PWM_MODE_TIMER: Counter of PWM peripheral is in Timer mode
  • PWM_MODE_COUNTER: Counter of PWM peripheral is in Counter mode
[in]PWM_ConfigStructPointer to structure (PWM_TIMERCFG_Type or PWM_COUNTERCFG_Type) which will be initialized.
Returns:
None Note: PWM_ConfigStruct pointer will be assigned to corresponding structure (PWM_TIMERCFG_Type or PWM_COUNTERCFG_Type) due to PWMTimerCounterMode.

Definition at line 148 of file lpc17xx_pwm.c.

void PWM_MatchUpdate ( LPC_PWM_TypeDef *  PWMx,
uint8_t  MatchChannel,
\uint32_t  MatchValue,
uint8_t  UpdateType 
)

Update value for each PWM channel with update type option.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
[in]MatchChannelMatch channel
[in]MatchValueMatch value
[in]UpdateTypeType of Update, should be:

  • PWM_MATCH_UPDATE_NOW: The update value will be updated for this channel immediately
  • PWM_MATCH_UPDATE_NEXT_RST: The update value will be updated for this channel on next reset by a PWM Match event.
Returns:
None

Definition at line 418 of file lpc17xx_pwm.c.

void PWM_ResetCounter ( LPC_PWM_TypeDef *  PWMx )

Reset Counter in PWM peripheral.

Parameters:
[in]PWMxPWM peripheral selected, should be PWM1
Returns:
None

Definition at line 273 of file lpc17xx_pwm.c.

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