?? 75x_adc.c
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}
/*******************************************************************************
* Function Name : ADC_ITConfig
* Description : Enables or disables the specified ADC interrupts.
* Input : - ADC_IT: specifies the ADC interrupts to be enabled or disabled.
* This parameter can be any combination of the following values:
* - ADC_IT_ECH: End of chain conversion interrupt
* - ADC_IT_EOC: End of channel conversion interrupt
* - ADC_IT_JECH: Injected end of chain conversion interrupt
* - ADC_IT_JEOC: Injected end of channel conversion interrupt
* - ADC_IT_AnalogWatchdog0_LowThreshold:
* Analog Watchdog 0 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog0_HighThreshold:
* Analog Watchdog 0 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog1_LowThreshold:
* Analog Watchdog 1 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog1_HighThreshold:
* Analog Watchdog 1 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog2_LowThreshold:
* Analog Watchdog 2 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog2_HighThreshold:
* Analog Watchdog 2 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog3_LowThreshold:
* Analog Watchdog 3 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog3_HighThreshold:
* Analog Watchdog 5 HighThreshold interrupt
* - ADC_IT_ALL: All interrupts
* - NewState: new state of the specified ADC interrupts.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void ADC_ITConfig(u16 ADC_IT, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Enable the selected ADC interrupts */
ADC->IMR |= ADC_IT;
}
else
{
/* Disable the selected ADC interrupts */
ADC->IMR &= ~ADC_IT;
}
}
/*******************************************************************************
* Function Name : ADC_DMAConfig
* Description : Configures the ADC抯 DMA interface.
* Input : - ADC_DMA_CHANNEL: specifies the channels to be enabled or
* disabled for DMA transfer. This parameter can be any
* combination of ADC_DMA_CHANNELx where x can be (0..15).
* - NewState: new state of the specified ADC DMA channels.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void ADC_DMAConfig(u16 ADC_DMA_CHANNEL, FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable DMA for the selected channels */
ADC->DMAR |= ADC_DMA_CHANNEL ;
}
else
{
/* Disable DMA for the selected channels */
ADC->DMAR &= ~ADC_DMA_CHANNEL;
}
}
/*******************************************************************************
* Function Name : ADC_DMACmd
* Description : Enable or disable the DMA transfer for the ADC.
* Input : - ADC_DMA: specifies the DMA command. This parameter can be
* one of the following values:
* - ADC_DMA_Disable: disable the DMA capability
* - ADC_DMA_Enable: enabled by setting the global
* enable bit
* - ADC_DMA_ExtTrigger_HighLevel: enabled by detection of
* high level of TIM2 OC2 signal
* - ADC_DMA_ExtTrigger_LowLevel: enabled by detection of
* low level of TIM2 OC2 signal
* Output : None
* Return : None
*******************************************************************************/
void ADC_DMACmd(u16 ADC_DMA)
{
/* Configure the DMA external trigger enable */
switch (ADC_DMA)
{
case ADC_DMA_Disable :
/* Disable DMA transfer */
ADC->DMAE &= ADC_DMA_Disable;
break;
case ADC_DMA_Enable :
/* Enable DMA transfer */
ADC->DMAE |= ADC_DMA_Enable;
break;
case ADC_DMA_ExtTrigger_HighLevel :
/* Enable DMA transfer on high level of the external trigger (TIM2) */
ADC->DMAE &= ADC_DMA_Disable;
ADC->DMAE |= ADC_DMA_ExtTrigger_HighLevel;
break;
case ADC_DMA_ExtTrigger_LowLevel :
/* Enable DMA transfer on low level of the external trigger (TIM2) */
ADC->DMAE |= ADC_DMA_ExtEnable_Mask;
ADC->DMAE &= ADC_DMA_ExtTrigger_LowLevel;
break;
default:
break;
}
}
/*******************************************************************************
* Function Name : ADC_GetDMAFirstEnabledChannel
* Description : Gets the first DMA-enabled channel configured at the time that
* DMA was last globally enabled.
* Input : None
* Output : None
* Return : The first DMA enabled channel
*******************************************************************************/
u16 ADC_GetDMAFirstEnabledChannel(void)
{
/* Return the DMA first enabled channel */
return (ADC->DMAE & ADC_DMAFirstEnabledChannel_Mask);
}
/*******************************************************************************
* Function Name : ADC_GetFlagStatus
* Description : Checks whether the specified ADC flag is set or not.
* Input : - ADC_FLAG: specifies the ADC flag to check. This parameter
* can be one of the following values:
* - ADC_FLAG_ECH: End of chain conversion Flag
* - ADC_FLAG_EOC: End of channel conversion Flag
* - ADC_FLAG_JECH: End of injected chain conversion Flag
* - ADC_FLAG_JEOC: End of injected channel conversion Flag
* - ADC_FLAG_AnalogWatchdog0_LowThreshold:
* Analog Watchdog 0 LowThreshold Flag
* - ADC_FLAG_AnalogWatchdog0_HighThreshold:
* Analog Watchdog 0 HighThreshold Flag
* - ADC_FLAG_AnalogWatchdog1_LowThreshold:
* Analog Watchdog 1 LowThreshold Flag
* - ADC_FLAG_AnalogWatchdog1_HighThreshold:
* Analog Watchdog 1 HighThreshold Flag
* - ADC_FLAG_AnalogWatchdog2_LowThreshold:
* Analog Watchdog 2 LowThreshold Flag
* - ADC_FLAG_AnalogWatchdog2_HighThreshold:
* Analog Watchdog 2 HighThreshold Flag
* - ADC_FLAG_AnalogWatchdog3_LowThreshold:
* Analog Watchdog 3 LowThreshold Flag
* - ADC_FLAG_AnalogWatchdog3_HighThreshold:
* Analog Watchdog 3 HighThreshold Flag
* Output : None
* Return : The new state of the ADC_FLAG (SET or RESET).
*******************************************************************************/
FlagStatus ADC_GetFlagStatus(u16 ADC_FLAG)
{
/* Check the status of the specified ADC flag */
if((ADC->PBR & ADC_FLAG) != RESET)
{
/* Return SET if ADC_FLAG is set */
return SET;
}
else
{
/* Return RESET if ADC_FLAG is reset */
return RESET;
}
}
/*******************************************************************************
* Function Name : ADC_ClearFlag
* Description : Clears the ADC抯 pending flags.
* Input : - ADC_FLAG: specifies the flag to clear. This parameter can
* be any combination of the following values:
* - ADC_FLAG_ECH: End of chain conversion flag
* - ADC_FLAG_EOC: End of channel conversion flag
* - ADC_FLAG_JECH: Injected end of chain conversion flag
* - ADC_FLAG_JEOC: Injected end of channel conversion flag
* - ADC_FLAG_AnalogWatchdog0_LowThreshold:
* Analog Watchdog 0 LowThreshold flag
* - ADC_FLAG_AnalogWatchdog0_HighThreshold:
* Analog Watchdog 0 HighThreshold flag
* - ADC_FLAG_AnalogWatchdog1_LowThreshold:
* Analog Watchdog 1 LowThreshold flag
* - ADC_FLAG_AnalogWatchdog1_HighThreshold:
* Analog Watchdog 1 HighThreshold flag
* - ADC_FLAG_AnalogWatchdog2_LowThreshold:
* Analog Watchdog 2 LowThreshold flag
* - ADC_FLAG_AnalogWatchdog2_HighThreshold:
* Analog Watchdog 2 HighThreshold flag
* - ADC_FLAG_AnalogWatchdog3_LowThreshold:
* Analog Watchdog 3 LowThreshold flag
* - ADC_FLAG_AnalogWatchdog3_HighThreshold:
* Analog Watchdog 3 HighThreshold flag
* Output : None
* Return : None
*******************************************************************************/
void ADC_ClearFlag(u16 ADC_FLAG)
{
/* Clear the selected ADC flag */
ADC->PBR = ADC_FLAG;
}
/*******************************************************************************
* Function Name : ADC_GetITStatus
* Description : Checks whether the specified ADC interrupt has occured or not.
* Input : - ADC_IT: specifies the ADC interrupt source to check. This
* parameter can be one of the following values:
* - ADC_IT_ECH :End of chain conversion interrupt
* - ADC_IT_EOC :End of channel conversion interrupt
* - ADC_IT_JECH :End of injected chain conversion interrupt
* - ADC_IT_JEOC :End of injected channel conversion interrupt
* - ADC_IT_AnalogWatchdog0_LowThreshold:
* Analog Watchdog 0 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog0_HighThreshold:
* Analog Watchdog 0 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog1_LowThreshold:
* Analog Watchdog 1 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog1_HighThreshold:
* Analog Watchdog 1 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog2_LowThreshold:
* Analog Watchdog 2 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog2_HighThreshold:
* Analog Watchdog 2 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog3_LowThreshold:
* Analog Watchdog 3 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog3_HighThreshold:
* Analog Watchdog 3 HighThreshold interrupt
* Output : None
* Return : The new state of the ADC_IT (SET or RESET).
*******************************************************************************/
ITStatus ADC_GetITStatus(u16 ADC_IT)
{
/* Check the status of the specified ADC interrupt */
if((ADC->PBR & ADC_IT) != RESET)
{
/* Return SET if the ADC interrupt flag is set */
return SET;
}
else
{
/* Return RESET if the ADC interrupt flag is reset */
return RESET;
}
}
/*******************************************************************************
* Function Name : ADC_ClearITPendingBit
* Description : Clears the ADC抯 interrupt pending bits.
* Input : - ADC_IT: specifies the interrupt pending bit to clear. This
* parameter can be can be any combination of the following
* values:
* - ADC_IT_ECH: End of chain conversion interrupt
* - ADC_IT_EOC: End of channel conversion interrupt
* - ADC_IT_JECH: Injected end of chain conversion interrupt
* - ADC_IT_JEOC: Injected end of channel conversion interrupt
* - ADC_IT_AnalogWatchdog0_LowThreshold:
* Analog Watchdog 0 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog0_HighThreshold:
* Analog Watchdog 0 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog1_LowThreshold:
* Analog Watchdog 1 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog1_HighThreshold:
* Analog Watchdog 1 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog2_LowThreshold:
* Analog Watchdog 2 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog2_HighThreshold:
* Analog Watchdog 2 HighThreshold interrupt
* - ADC_IT_AnalogWatchdog3_LowThreshold:
* Analog Watchdog 3 LowThreshold interrupt
* - ADC_IT_AnalogWatchdog3_HighThreshold:
* Analog Watchdog 5 HighThreshold interrupt
* Output : None
* Return : None
*******************************************************************************/
void ADC_ClearITPendingBit(u16 ADC_IT)
{
/* Clear the selected ADC interrupts pending bits */
ADC->PBR = ADC_IT;
}
/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/
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