/*******************************************************************************
* Function Name: PWM_RestoreConfig
********************************************************************************
*
* Summary:
* Restores the current user configuration of the component.
*
* Parameters:
* None
*
* Return:
* None
*
* Global variables:
* PWM_backup: Variables of this global structure are used to
* restore the values of non retention registers on wakeup from sleep mode.
*
*******************************************************************************/
void PWM_RestoreConfig(void)
{
#if(!PWM_UsingFixedFunction)
#if(!PWM_PWMModeIsCenterAligned)
PWM_WritePeriod(PWM_backup.PWMPeriod);
#endif /* (!PWM_PWMModeIsCenterAligned) */
PWM_WriteCounter(PWM_backup.PWMUdb);
#if (PWM_UseStatus)
PWM_STATUS_MASK = PWM_backup.InterruptMaskValue;
#endif /* (PWM_UseStatus) */
#if(PWM_DeadBandMode == PWM__B_PWM__DBM_256_CLOCKS || \
PWM_DeadBandMode == PWM__B_PWM__DBM_2_4_CLOCKS)
PWM_WriteDeadTime(PWM_backup.PWMdeadBandValue);
#endif /* deadband count is either 2-4 clocks or 256 clocks */
#if(PWM_KillModeMinTime)
PWM_WriteKillTime(PWM_backup.PWMKillCounterPeriod);
#endif /* (PWM_KillModeMinTime) */
#if(PWM_UseControl)
PWM_WriteControlRegister(PWM_backup.PWMControlRegister);
#endif /* (PWM_UseControl) */
#endif /* (!PWM_UsingFixedFunction) */
}
/*******************************************************************************
* Function Name: PWM_Init
********************************************************************************
*
* Summary:
* Initialize component's parameters to the parameters set by user in the
* customizer of the component placed onto schematic. Usually called in
* PWM_Start().
*
* Parameters:
* None
*
* Return:
* None
*
*******************************************************************************/
void PWM_Init(void)
{
#if (PWM_UsingFixedFunction || PWM_UseControl)
uint8 ctrl;
#endif /* (PWM_UsingFixedFunction || PWM_UseControl) */
#if(!PWM_UsingFixedFunction)
#if(PWM_UseStatus)
/* Interrupt State Backup for Critical Region*/
uint8 PWM_interruptState;
#endif /* (PWM_UseStatus) */
#endif /* (!PWM_UsingFixedFunction) */
#if (PWM_UsingFixedFunction)
/* You are allowed to write the compare value (FF only) */
PWM_CONTROL |= PWM_CFG0_MODE;
#if (PWM_DeadBand2_4)
PWM_CONTROL |= PWM_CFG0_DB;
#endif /* (PWM_DeadBand2_4) */
/* Set the default Compare Mode */
#if(CY_PSOC5A)
ctrl = PWM_CONTROL2 & ((uint8)(~PWM_CTRL_CMPMODE1_MASK));
PWM_CONTROL2 = ctrl | PWM_DEFAULT_COMPARE1_MODE;
#endif /* (CY_PSOC5A) */
#if(CY_PSOC3 || CY_PSOC5LP)
ctrl = PWM_CONTROL3 & ((uint8 )(~PWM_CTRL_CMPMODE1_MASK));
PWM_CONTROL3 = ctrl | PWM_DEFAULT_COMPARE1_MODE;
#endif /* (CY_PSOC3 || CY_PSOC5LP) */
/* Clear and Set SYNCTC and SYNCCMP bits of RT1 register */
PWM_RT1 &= ((uint8)(~PWM_RT1_MASK));
PWM_RT1 |= PWM_SYNC;
/*Enable DSI Sync all all inputs of the PWM*/
PWM_RT1 &= ((uint8)(~PWM_SYNCDSI_MASK));
PWM_RT1 |= PWM_SYNCDSI_EN;
#elif (PWM_UseControl)
/* Set the default compare mode defined in the parameter */
ctrl = PWM_CONTROL & ((uint8)(~PWM_CTRL_CMPMODE2_MASK)) & ((uint8)(~PWM_CTRL_CMPMODE1_MASK));
PWM_CONTROL = ctrl | PWM_DEFAULT_COMPARE2_MODE |
PWM_DEFAULT_COMPARE1_MODE;
#endif /* (PWM_UsingFixedFunction) */
#if (!PWM_UsingFixedFunction)
#if (PWM_Resolution == 8)
/* Set FIFO 0 to 1 byte register for period*/
PWM_AUX_CONTROLDP0 |= (PWM_AUX_CTRL_FIFO0_CLR);
#else /* (PWM_Resolution == 16)*/
/* Set FIFO 0 to 1 byte register for period */
PWM_AUX_CONTROLDP0 |= (PWM_AUX_CTRL_FIFO0_CLR);
PWM_AUX_CONTROLDP1 |= (PWM_AUX_CTRL_FIFO0_CLR);
#endif /* (PWM_Resolution == 8) */
PWM_WriteCounter(PWM_INIT_PERIOD_VALUE);
#endif /* (!PWM_UsingFixedFunction) */
PWM_WritePeriod(PWM_INIT_PERIOD_VALUE);
#if (PWM_UseOneCompareMode)
PWM_WriteCompare(PWM_INIT_COMPARE_VALUE1);
#else
PWM_WriteCompare1(PWM_INIT_COMPARE_VALUE1);
PWM_WriteCompare2(PWM_INIT_COMPARE_VALUE2);
#endif /* (PWM_UseOneCompareMode) */
#if (PWM_KillModeMinTime)
PWM_WriteKillTime(PWM_MinimumKillTime);
#endif /* (PWM_KillModeMinTime) */
#if (PWM_DeadBandUsed)
PWM_WriteDeadTime(PWM_INIT_DEAD_TIME);
#endif /* (PWM_DeadBandUsed) */
#if (PWM_UseStatus || PWM_UsingFixedFunction)
PWM_SetInterruptMode(PWM_INIT_INTERRUPTS_MODE);
#endif /* (PWM_UseStatus || PWM_UsingFixedFunction) */
#if (PWM_UsingFixedFunction)
/* Globally Enable the Fixed Function Block chosen */
PWM_GLOBAL_ENABLE |= PWM_BLOCK_EN_MASK;
/* Set the Interrupt source to come from the status register */
PWM_CONTROL2 |= PWM_CTRL2_IRQ_SEL;
#else
#if(PWM_UseStatus)
/* CyEnterCriticalRegion and CyExitCriticalRegion are used to mark following region critical*/
/* Enter Critical Region*/
PWM_interruptState = CyEnterCriticalSection();
/* Use the interrupt output of the status register for IRQ output */
PWM_STATUS_AUX_CTRL |= PWM_STATUS_ACTL_INT_EN_MASK;
/* Exit Critical Region*/
CyExitCriticalSection(PWM_interruptState);
/* Clear the FIFO to enable the PWM_STATUS_FIFOFULL
bit to be set on FIFO full. */
PWM_ClearFIFO();
#endif /* (PWM_UseStatus) */
#endif /* (PWM_UsingFixedFunction) */
}
/*******************************************************************************
* Function Name: PWM_RestoreConfig
********************************************************************************
*
* Summary:
* Restores the current user configuration of the component.
*
* Parameters:
* void
*
* Return:
* void
*
* Global variables:
* PWM_backup: Variables of this global structure are used to
* restore the values of non retention registers on wakeup from sleep mode.
*
*******************************************************************************/
void PWM_RestoreConfig(void)
{
#if(!PWM_UsingFixedFunction)
#if (CY_PSOC5A)
/* Interrupt State Backup for Critical Region*/
uint8 PWM_interruptState;
/* Enter Critical Region*/
PWM_interruptState = CyEnterCriticalSection();
#if (PWM_UseStatus)
/* Use the interrupt output of the status register for IRQ output */
PWM_STATUS_AUX_CTRL |= PWM_STATUS_ACTL_INT_EN_MASK;
PWM_STATUS_MASK = PWM_backup.InterruptMaskValue;
#endif /* (PWM_UseStatus) */
#if (PWM_Resolution == 8)
/* Set FIFO 0 to 1 byte register for period*/
PWM_AUX_CONTROLDP0 |= (PWM_AUX_CTRL_FIFO0_CLR);
#else /* (PWM_Resolution == 16)*/
/* Set FIFO 0 to 1 byte register for period */
PWM_AUX_CONTROLDP0 |= (PWM_AUX_CTRL_FIFO0_CLR);
PWM_AUX_CONTROLDP1 |= (PWM_AUX_CTRL_FIFO0_CLR);
#endif /* (PWM_Resolution == 8) */
/* Exit Critical Region*/
CyExitCriticalSection(PWM_interruptState);
PWM_WriteCounter(PWM_backup.PWMUdb);
PWM_WritePeriod(PWM_backup.PWMPeriod);
#if(PWM_UseOneCompareMode)
PWM_WriteCompare(PWM_backup.PWMCompareValue);
#else
PWM_WriteCompare1(PWM_backup.PWMCompareValue1);
PWM_WriteCompare2(PWM_backup.PWMCompareValue2);
#endif /* (PWM_UseOneCompareMode) */
#if(PWM_DeadBandMode == PWM__B_PWM__DBM_256_CLOCKS || \
PWM_DeadBandMode == PWM__B_PWM__DBM_2_4_CLOCKS)
PWM_WriteDeadTime(PWM_backup.PWMdeadBandValue);
#endif /* deadband count is either 2-4 clocks or 256 clocks */
#if ( PWM_KillModeMinTime)
PWM_WriteKillTime(PWM_backup.PWMKillCounterPeriod);
#endif /* ( PWM_KillModeMinTime) */
#endif /* (CY_PSOC5A) */
#if (CY_PSOC3 || CY_PSOC5LP)
#if(!PWM_PWMModeIsCenterAligned)
PWM_WritePeriod(PWM_backup.PWMPeriod);
#endif /* (!PWM_PWMModeIsCenterAligned) */
PWM_WriteCounter(PWM_backup.PWMUdb);
#if (PWM_UseStatus)
PWM_STATUS_MASK = PWM_backup.InterruptMaskValue;
#endif /* (PWM_UseStatus) */
#if(PWM_DeadBandMode == PWM__B_PWM__DBM_256_CLOCKS || \
PWM_DeadBandMode == PWM__B_PWM__DBM_2_4_CLOCKS)
PWM_WriteDeadTime(PWM_backup.PWMdeadBandValue);
#endif /* deadband count is either 2-4 clocks or 256 clocks */
#if(PWM_KillModeMinTime)
PWM_WriteKillTime(PWM_backup.PWMKillCounterPeriod);
#endif /* (PWM_KillModeMinTime) */
#endif /* (CY_PSOC3 || CY_PSOC5LP) */
#if(PWM_UseControl)
PWM_WriteControlRegister(PWM_backup.PWMControlRegister);
#endif /* (PWM_UseControl) */
#endif /* (!PWM_UsingFixedFunction) */
}
