75x_tb.c

ST公司STR750学习开发板软件包

}

/*******************************************************************************
* Function Name  : TB_SetPrescaler
* Description    : Sets the TB Prescaler value.
* Input          : Prescaler: specifies the TB Prescaler value.
* Output         : None
* Return         : None
*******************************************************************************/
void TB_SetPrescaler(u16 Prescaler)
{
  /* Sets the prescaler value */
  TB->PSC = Prescaler;
}

/*******************************************************************************
* Function Name  : TB_ResetCounter
* Description    : Re-intializes the counter and generates an update of the
*                  registers.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TB_ResetCounter(void)
{
  /* Re-intializes TB counter */
  TB->CR |= TB_COUNTER_Reset;
}

/*******************************************************************************
* Function Name  : TB_DebugCmd
* Description    : Enables or disables TB peripheral Debug control.
* Input          : Newstate: new state of the TB Debug control.
*                  This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void TB_DebugCmd(FunctionalState Newstate)
{
  if(Newstate == ENABLE)
  {
    TB->CR |= TB_DBGC_Set;
  }
  else
  {
    TB->CR &= TB_DBGC_Reset;
  }
}

/*******************************************************************************
* Function Name  : TB_CounterModeConfig
* Description    : Configures the TB Counter Mode.
* Input          : TB_CounterMode: specifies the TB counter mode to be used.
*                  This parameter can be one of the following values:
*                         - TB_CounterMode_Up: TB Up Counting Mode
*                         - TB_CounterMode_Down: TB Down Counting Mode
*                         - TB_CounterMode_CenterAligned: TB Center Aligned Mode
* Output         : None
* Return         : None
*******************************************************************************/
void TB_CounterModeConfig(u16 TB_CounterMode)
{
  /* Counter mode configuration */
  TB->CR &= TB_CounterMode_Mask;
  TB->CR |= TB_CounterMode;
}

/*******************************************************************************
* Function Name  : TB_SLaveModeConfig
* Description    : Configures the TB slave Mode.
* Input          : TB_SMSMode: specifies the TB slave mode to be used.
*                  This parameter can be one of the following values:
*                         - TB_SMSMode_Trigger: The counter starts at a rising 
*                           edge of the trigger 
*                         - TB_SMSMode_Gated: The counter clock is enabled when 
*                           trigger signal is high
*                         - TB_SMSMode_External: The rising edge of selected trigger
*                           clocks the counter
*                         - TB_SMSMode_Reset: The rising edge of the selected 
*                           trigger signal resets the counter
* Output         : None
* Return         : None
*******************************************************************************/
void TB_SLaveModeConfig(u16 TB_SMSMode)
{
  TB->SCR &= TB_SME_Reset & TB_SlaveModeSelection_Mask & TB_TriggerSelection_Mask;
  TB->SCR |= TB_SME_Set | TB_SMSMode | TB_TS_IC1_Set; 
}
/*******************************************************************************
* Function Name  : TB_GetCounter
* Description    : Gets the TB Counter value.
* Input          : None
* Output         : None
* Return         : The TB counter register value.
*******************************************************************************/
u16 TB_GetCounter(void)
{
  return TB->CNT;
}

/*******************************************************************************
* Function Name  : TB_GetICAP1
* Description    : Gets the TB Input capture value.
* Input          : None
* Output         : None
* Return         : The TB ICR1 register value.
*******************************************************************************/
u16 TB_GetICAP1(void)
{
  return TB->ICR1;
}

/*******************************************************************************
* Function Name  : TB_SetCounter
* Description    : Sets the TB Counter value.
* Input          : Counter: specifies the TB Counter value.
* Output         : None
* Return         : None
*******************************************************************************/
void TB_SetCounter(u16 Counter)
{
  TB->CNT = Counter;
}

/*******************************************************************************
* Function Name  : TB_GetFlagStatus
* Description    : Checks whether the specified TB flag is set or not.
* Input          : TB_FLAG: specifies the flag to check.
*                  This parameter can be one of the following values:
*                         - TB_FLAG_IC: TB Input Capture flag
*                         - TB_FLAG_Update: TB update flag
* Output         : None
* Return         : The new state of the TB_FLAG (SET or RESET).
*******************************************************************************/
FlagStatus TB_GetFlagStatus(u16 TB_FLAG)
{
  if((TB->ISR & TB_FLAG) != RESET )
  {
   return SET;
  }
  else
  {
   return RESET;
  }
}

/*******************************************************************************
* Function Name  : TB_ClearFlag
* Description    : Clears the TB抯 pending flags.
* Input          : TB_FLAG: specifies the flag to clear.
*                  This parameter can be any combination of the following values:
*                         - TB_FLAG_IC: TB Input Capture flag
*                         - TB_FLAG_Update: TB update flag
* Output         : None
* Return         : None
*******************************************************************************/
void TB_ClearFlag(u16 TB_FLAG)
{
  /* Clears the flags */
  TB->ISR &= ~TB_FLAG;
}

/*******************************************************************************
* Function Name  : TB_GetITStatus
* Description    : Checks whether the specified TB interrupt has occurred or not.
* Input          : TB_IT: specifies the interrupt to check.
*                  This parameter can be one of the following values:
*                       - TB_IT_Update: TB Update interrupt
*                       - TB_IT_GlobalUpdate: TB Global Update interrupt
*                       - TB_IT_IC: TB Input Capture interrupt
* Output         : None
* Return         : The new state of the TB_IT (SET or RESET).
*******************************************************************************/
ITStatus TB_GetITStatus(u16 TB_IT)
{
  u16 TB_IT_Check = 0;

  /* Calculates the pending bits to be checked */
  TB_IT_Check = TB_IT & TB_IT_Clear_Mask;
  
  if((TB->ISR & TB_IT_Check) != RESET )
  {
   return SET;
  }
  else
  {
   return RESET;
  }
}

/*******************************************************************************
* Function Name  : TB_ClearITPendingBit
* Description    : Clears the TB's interrupt pending bits.
* Input          : TB_IT: specifies the interrupt pending bit to clear.
*                  This parameter can be any combination of the following values:
*                         - TB_IT_Update: TB Update interrupt
*                         - TB_IT_GlobalUpdate: TB Global Update interrupt
*                         - TB_IT_IC: TB Input Capture interrupt
* Output         : None
* Return         : None
*******************************************************************************/
void TB_ClearITPendingBit(u16 TB_IT)
{
  u16 TB_IT_Clear = 0;

  /* Calculates the pending bits to be cleared */
  TB_IT_Clear = TB_IT & TB_IT_Clear_Mask;

  /* Clears the pending bits */
  TB->ISR &= ~TB_IT_Clear;
}
/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/