Functions
Initialization and Configuration functions

Initialization and Configuration functions. More...

Collaboration diagram for Initialization and Configuration functions:

Functions

void COMP_Cmd (uint32_t COMP_Selection, FunctionalState NewState)
 Enable or disable the COMP peripheral. More...
 
void COMP_DeInit (uint32_t COMP_Selection)
 Deinitializes COMP peripheral registers to their default reset values. More...
 
uint32_t COMP_GetOutputLevel (uint32_t COMP_Selection)
 Return the output level (high or low) of the selected comparator. The output level depends on the selected polarity. If the polarity is not inverted: More...
 
void COMP_Init (uint32_t COMP_Selection, COMP_InitTypeDef *COMP_InitStruct)
 Initializes the COMP peripheral according to the specified parameters in COMP_InitStruct. More...
 
void COMP_StructInit (COMP_InitTypeDef *COMP_InitStruct)
 Fills each COMP_InitStruct member with its default value. More...
 
void COMP_SwitchCmd (uint32_t COMP_Selection, FunctionalState NewState)
 Close or Open the SW1 switch. More...
 

Detailed Description

Initialization and Configuration functions.

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            ##### Initialization and Configuration functions #####
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Function Documentation

void COMP_Cmd ( uint32_t  COMP_Selection,
FunctionalState  NewState 
)

Enable or disable the COMP peripheral.

Note
If the selected comparator is locked, enable/disable can't be performed. To unlock the configuration, perform a system reset.
Parameters
COMP_Selectionthe selected comparator. This parameter can be COMP_Selection_COMPx where x can be 1 to 7 to select the COMP peripheral.
NewStatenew state of the COMP peripheral. This parameter can be: ENABLE or DISABLE. When enabled, the comparator compares the non inverting input with the inverting input and the comparison result is available on comparator output. When disabled, the comparator doesn't perform comparison and the output level is low.
Return values
None

Definition at line 311 of file stm32f30x_comp.c.

void COMP_DeInit ( uint32_t  COMP_Selection)

Deinitializes COMP peripheral registers to their default reset values.

Note
Deinitialization can't be performed if the COMP configuration is locked. To unlock the configuration, perform a system reset.
Parameters
COMP_Selectionthe selected comparator. This parameter can be COMP_Selection_COMPx where x can be 1 to 7 to select the COMP peripheral.
None
Return values
None

< Set COMP_CSR register to reset value

Definition at line 214 of file stm32f30x_comp.c.

uint32_t COMP_GetOutputLevel ( uint32_t  COMP_Selection)

Return the output level (high or low) of the selected comparator. The output level depends on the selected polarity. If the polarity is not inverted:

  • Comparator output is low when the non-inverting input is at a lower voltage than the inverting input
  • Comparator output is high when the non-inverting input is at a higher voltage than the inverting input If the polarity is inverted:
  • Comparator output is high when the non-inverting input is at a lower voltage than the inverting input
  • Comparator output is low when the non-inverting input is at a higher voltage than the inverting input
    Parameters
    COMP_Selectionthe selected comparator. This parameter can be COMP_Selection_COMPx where x can be 1 to 7 to select the COMP peripheral.
    Return values
    Returnsthe selected comparator output level: low or high.

Definition at line 377 of file stm32f30x_comp.c.

void COMP_Init ( uint32_t  COMP_Selection,
COMP_InitTypeDef COMP_InitStruct 
)

Initializes the COMP peripheral according to the specified parameters in COMP_InitStruct.

Note
If the selected comparator is locked, initialization can't be performed. To unlock the configuration, perform a system reset.
By default, PA1 is selected as COMP1 non inverting input. To use PA4 as COMP1 non inverting input call COMP_SwitchCmd() after COMP_Init()
Parameters
COMP_Selectionthe selected comparator. This parameter can be COMP_Selection_COMPx where x can be 1 to 7 to select the COMP peripheral.
COMP_InitStructpointer to an COMP_InitTypeDef structure that contains the configuration information for the specified COMP peripheral.
  • COMP_InvertingInput specifies the inverting input of COMP
  • COMP_NonInvertingInput specifies the non inverting input of COMP
  • COMP_Output connect COMP output to selected timer input (Input capture / Output Compare Reference Clear / Break Input)
  • COMP_BlankingSrce specifies the blanking source of COMP
  • COMP_OutputPol select output polarity
  • COMP_Hysteresis configures COMP hysteresis value
  • COMP_Mode configures COMP power mode
Return values
None

< Get the COMPx_CSR register value

< Clear the COMP1SW1, COMPxINSEL, COMPxOUTSEL, COMPxPOL, COMPxHYST and COMPxMODE bits

< Configure COMP: inverting input, output redirection, hysteresis value and power mode

< Set COMPxINSEL bits according to COMP_InitStruct->COMP_InvertingInput value

< Set COMPxNONINSEL bits according to COMP_InitStruct->COMP_NonInvertingInput value

< Set COMPxBLANKING bits according to COMP_InitStruct->COMP_BlankingSrce value

< Set COMPxOUTSEL bits according to COMP_InitStruct->COMP_Output value

< Set COMPxPOL bit according to COMP_InitStruct->COMP_OutputPol value

< Set COMPxHYST bits according to COMP_InitStruct->COMP_Hysteresis value

< Set COMPxMODE bits according to COMP_InitStruct->COMP_Mode value

< Write to COMPx_CSR register

Definition at line 242 of file stm32f30x_comp.c.

void COMP_StructInit ( COMP_InitTypeDef COMP_InitStruct)

Fills each COMP_InitStruct member with its default value.

Parameters
COMP_InitStructpointer to an COMP_InitTypeDef structure which will be initialized.
Return values
None

Definition at line 284 of file stm32f30x_comp.c.

void COMP_SwitchCmd ( uint32_t  COMP_Selection,
FunctionalState  NewState 
)

Close or Open the SW1 switch.

Note
If the COMP1 is locked, Close/Open the SW1 switch can't be performed. To unlock the configuration, perform a system reset.
This switch is solely intended to redirect signals onto high impedance input, such as COMP1 non-inverting input (highly resistive switch)
Parameters
NewStateNew state of the analog switch. This parameter can be ENABLE so the SW1 is closed; PA1 is connected to PA4 or DISABLE so the SW1 switch is open; PA1 is disconnected from PA4
Return values
None

Definition at line 341 of file stm32f30x_comp.c.



rosflight_firmware
Author(s): Daniel Koch , James Jackson
autogenerated on Fri Jul 24 2020 03:20:14