LL COMP Constants ¶

Comparator modes - Power mode ¶

group COMP_LL_EC_POWER_MODE

Defines

LL_COMP_POWER_MODE_HIGH_SPEED (0x00000000UL) ¶: Comparator power mode to high speed

LL_COMP_POWER_MODE_MEDIUM_SPEED (COMP_CFGR1_PWRMODE_0) ¶: Comparator power mode to medium speed

LL_COMP_POWER_MODE_ULTRA_LOW_POWER (COMP_CFGR1_PWRMODE_1 \ | COMP_CFGR1_PWRMODE_0) ¶: Comparator power mode to ultra-low power

Comparator modes - Power mode legacy definitions ¶

group COMP_LL_EC_POWER_MODE_LEGACY

Defines

LL_COMP_POWERMODE_HIGHSPEED LL_COMP_POWER_MODE_HIGH_SPEED ¶

LL_COMP_POWERMODE_MEDIUMSPEED LL_COMP_POWER_MODE_MEDIUM_SPEED ¶

LL_COMP_POWERMODE_ULTRALOWPOWER LL_COMP_POWER_MODE_ULTRA_LOW_POWER ¶

Comparator inputs - Input plus (input non-inverting) selection ¶

group COMP_LL_EC_INPUT_PLUS

Defines

LL_COMP_INPUT_PLUS_IO1 (0x00000000UL) ¶: Comparator input plus connected to IO1 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP1”).

LL_COMP_INPUT_PLUS_IO2 (COMP_CFGR1_INPSEL_0) ¶: Comparator input plus connected to IO2 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP2”).

LL_COMP_INPUT_PLUS_IO3 (COMP_CFGR1_INPSEL_1) ¶: Comparator input plus connected to IO3 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP3”).

LL_COMP_INPUT_PLUS_DAC1_CH1 (COMP_CFGR1_INPSEL_1 | COMP_CFGR1_INPSEL_0) ¶: Comparator input plus connected to DAC1 channel 1. Specific to COMP instance: COMP1.

group COMP_LL_EC_INPUT_PLUS

Defines

LL_COMP_INPUT_PLUS_IO1 (0x00000000UL): Comparator input plus connected to IO1 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP1”).

LL_COMP_INPUT_PLUS_IO2 (COMP_CFGR1_INPSEL_0): Comparator input plus connected to IO2 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP2”).

LL_COMP_INPUT_PLUS_IO3 (COMP_CFGR1_INPSEL_1): Comparator input plus connected to IO3 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP3”).

LL_COMP_INPUT_PLUS_DAC1_CH1 (COMP_CFGR1_INPSEL_1 | COMP_CFGR1_INPSEL_0): Comparator input plus connected to DAC1 channel 1. Specific to COMP instance: COMP1.

group COMP_LL_EC_INPUT_PLUS

Defines

LL_COMP_INPUT_PLUS_IO1 (0x00000000UL): Comparator input plus connected to IO1 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP1”).

LL_COMP_INPUT_PLUS_IO2 (COMP_CFGR1_INPSEL_0): Comparator input plus connected to IO2 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP2”).

LL_COMP_INPUT_PLUS_IO3 (COMP_CFGR1_INPSEL_1): Comparator input plus connected to IO3 (for GPIO mapping, refer to the datasheet parameters “COMPx_INP3”).

LL_COMP_INPUT_PLUS_DAC1_CH1 (COMP_CFGR1_INPSEL_1 | COMP_CFGR1_INPSEL_0): Comparator input plus connected to DAC1 channel 1. Specific to COMP instance: COMP1.

LL_COMP_INPUT_PLUS_DAC1_CH2 (COMP_CFGR1_INPSEL_1 | COMP_CFGR1_INPSEL_0) ¶: Comparator input plus connected to DAC1 channel 2. Specific to COMP instance: COMP2 (available on devices STM32C53xx/54xx).

Comparator inputs - Input minus (input inverting) selection ¶

group COMP_LL_EC_INPUT_MINUS

Defines

LL_COMP_INPUT_MINUS_VREFINT (COMP_CFGR1_INMSEL_1 | COMP_CFGR1_INMSEL_0 \ | COMP_CFGR1_SCALEN) ¶: Comparator input minus connected to VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_1_4VREFINT (COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN) ¶: Comparator input minus connected to 1/4 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_1_2VREFINT (COMP_CFGR1_INMSEL_0 | COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN) ¶: Comparator input minus connected to 1/2 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_3_4VREFINT (COMP_CFGR1_INMSEL_1 | COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN) ¶: Comparator input minus connected to 3/4 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_IO1 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_0) ¶: Comparator input minus connected to IO1 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM1”).

LL_COMP_INPUT_MINUS_IO2 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_1) ¶: Comparator input minus connected to IO2 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM2”).

LL_COMP_INPUT_MINUS_IO3 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_1 \ | COMP_CFGR1_INMSEL_0) ¶: Comparator input minus connected to IO3 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM3”).

LL_COMP_INPUT_MINUS_DAC1_CH1 (COMP_CFGR1_INMSEL_2) ¶: Comparator input minus connected to DAC1 channel 1. Specific to COMP instances: COMP1.

LL_COMP_INPUT_MINUS_TEMPSENSOR (COMP_CFGR1_INMSEL_3) ¶: Comparator input minus connected to the internal temperature sensor (also accessible through the ADC peripheral). Call function LL_COMP_EnableInputTempSensorBuffer().

group COMP_LL_EC_INPUT_MINUS

Defines

LL_COMP_INPUT_MINUS_VREFINT (COMP_CFGR1_INMSEL_1 | COMP_CFGR1_INMSEL_0 \ | COMP_CFGR1_SCALEN): Comparator input minus connected to VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_1_4VREFINT (COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN): Comparator input minus connected to 1/4 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_1_2VREFINT (COMP_CFGR1_INMSEL_0 | COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN): Comparator input minus connected to 1/2 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_3_4VREFINT (COMP_CFGR1_INMSEL_1 | COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN): Comparator input minus connected to 3/4 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_IO1 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_0): Comparator input minus connected to IO1 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM1”).

LL_COMP_INPUT_MINUS_IO2 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_1): Comparator input minus connected to IO2 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM2”).

LL_COMP_INPUT_MINUS_IO3 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_1 \ | COMP_CFGR1_INMSEL_0): Comparator input minus connected to IO3 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM3”).

LL_COMP_INPUT_MINUS_DAC1_CH1 (COMP_CFGR1_INMSEL_2): Comparator input minus connected to DAC1 channel 1. Specific to COMP instances: COMP1.

LL_COMP_INPUT_MINUS_TEMPSENSOR (COMP_CFGR1_INMSEL_3): Comparator input minus connected to the internal temperature sensor (also accessible through the ADC peripheral). Call function LL_COMP_EnableInputTempSensorBuffer().

group COMP_LL_EC_INPUT_MINUS

Defines

LL_COMP_INPUT_MINUS_VREFINT (COMP_CFGR1_INMSEL_1 | COMP_CFGR1_INMSEL_0 \ | COMP_CFGR1_SCALEN): Comparator input minus connected to VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_1_4VREFINT (COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN): Comparator input minus connected to 1/4 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_1_2VREFINT (COMP_CFGR1_INMSEL_0 | COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN): Comparator input minus connected to 1/2 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_3_4VREFINT (COMP_CFGR1_INMSEL_1 | COMP_CFGR1_SCALEN | COMP_CFGR1_BRGEN): Comparator input minus connected to 3/4 VrefInt (for VrefInt voltage value, refer to the datasheet).

LL_COMP_INPUT_MINUS_IO1 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_0): Comparator input minus connected to IO1 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM1”).

LL_COMP_INPUT_MINUS_IO2 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_1): Comparator input minus connected to IO2 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM2”).

LL_COMP_INPUT_MINUS_IO3 (COMP_CFGR1_INMSEL_2 | COMP_CFGR1_INMSEL_1 \ | COMP_CFGR1_INMSEL_0): Comparator input minus connected to IO3 (for GPIO mapping, refer to the datasheet parameters “COMPx_INM3”).

LL_COMP_INPUT_MINUS_DAC1_CH1 (COMP_CFGR1_INMSEL_2): Comparator input minus connected to DAC1 channel 1. Specific to COMP instances: COMP1.

LL_COMP_INPUT_MINUS_DAC1_CH2 (COMP_CFGR1_INMSEL_2) ¶: Comparator input minus connected to DAC1 channel 2. Specific to COMP instance: COMP2 (available on devices STM32C53xx/54xx).

LL_COMP_INPUT_MINUS_OPAMP1_OUT (COMP_CFGR1_INMSEL_3) ¶: Comparator input minus connected to OPAMP1 output. Specific to COMP instance: COMP2 (available on devices STM32C53xx/54xx).

LL_COMP_INPUT_MINUS_TEMPSENSOR (COMP_CFGR1_INMSEL_3): Comparator input minus connected to the internal temperature sensor (also accessible through the ADC peripheral). Call function LL_COMP_EnableInputTempSensorBuffer().

Comparator input - Hysteresis ¶

group COMP_LL_EC_INPUT_HYSTERESIS

Defines

LL_COMP_HYSTERESIS_NONE (0x00000000UL) ¶: No hysteresis

LL_COMP_HYSTERESIS_LOW (COMP_CFGR1_HYST_0) ¶: Hysteresis level low

LL_COMP_HYSTERESIS_MEDIUM (COMP_CFGR1_HYST_1) ¶: Hysteresis level medium

LL_COMP_HYSTERESIS_HIGH (COMP_CFGR1_HYST_1 | COMP_CFGR1_HYST_0) ¶: Hysteresis level high

group COMP_LL_EC_INPUT_HYSTERESIS

Defines

LL_COMP_HYSTERESIS_NONE (0x00000000UL): No hysteresis

LL_COMP_HYSTERESIS_LOW (COMP_CFGR1_HYST_0): Hysteresis level low

LL_COMP_HYSTERESIS_MEDIUM (COMP_CFGR1_HYST_1): Hysteresis level medium

LL_COMP_HYSTERESIS_HIGH (COMP_CFGR1_HYST_1 | COMP_CFGR1_HYST_0): Hysteresis level high

group COMP_LL_EC_INPUT_HYSTERESIS

Defines

LL_COMP_HYSTERESIS_NONE (0x00000000UL): No hysteresis

LL_COMP_HYSTERESIS_LOW (COMP_CFGR1_HYST_0): Hysteresis level low

LL_COMP_HYSTERESIS_MEDIUM (COMP_CFGR1_HYST_1): Hysteresis level medium

LL_COMP_HYSTERESIS_HIGH (COMP_CFGR1_HYST_1 | COMP_CFGR1_HYST_0): Hysteresis level high

Comparator output - Output polarity ¶

group COMP_LL_EC_OUTPUT_POLARITY

Defines

LL_COMP_OUTPUTPOL_NONINVERTED (0x00000000UL) ¶: Comparator output polarity not inverted: comparator output at high level when input voltages: plus higher than minus

LL_COMP_OUTPUTPOL_INVERTED (COMP_CFGR1_POLARITY) ¶: Comparator output polarity not inverted: comparator output at low level when input voltages: plus higher than minus

Comparator output - Blanking source ¶

group COMP_LL_EC_OUTPUT_BLANKING_SOURCE

Defines

LL_COMP_BLANKINGSRC_NONE (0x00000000UL) ¶: Comparator output without blanking

LL_COMP_BLANKINGSRC_TIM1_OC5 (COMP_CFGR1_BLANKING_0) ¶: Comparator output blanking source TIM1 OC5, specific to instance: COMP1.

LL_COMP_BLANKINGSRC_TIM1_OC6 (COMP_CFGR1_BLANKING_0) ¶: Comparator output blanking source TIM1 OC6, specific to instance: COMP2.

LL_COMP_BLANKINGSRC_TIM2_OC3 (COMP_CFGR1_BLANKING_1) ¶: Comparator output blanking source TIM2 OC3.

LL_COMP_BLANKINGSRC_TIM5_OC3 (COMP_CFGR1_BLANKING_0 \ | COMP_CFGR1_BLANKING_1) ¶: Comparator output blanking source TIM5 OC3.

LL_COMP_BLANKINGSRC_TIM5_OC4 (COMP_CFGR1_BLANKING_2) ¶: Comparator output blanking source TIM5 OC4.

LL_COMP_BLANKINGSRC_TIM8_OC5 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_0) ¶: Comparator output blanking source TIM8 OC5.

LL_COMP_BLANKINGSRC_TIM15_OC2 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_1) ¶: Comparator output blanking source TIM15 OC2.

LL_COMP_BLANKINGSRC_LPTIM1_OC1 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_1 \ | COMP_CFGR1_BLANKING_0) ¶: Comparator output blanking source LPTIM1 OC1, specific to instance: COMP2.

group COMP_LL_EC_OUTPUT_BLANKING_SOURCE

Defines

LL_COMP_BLANKINGSRC_NONE (0x00000000UL): Comparator output without blanking

LL_COMP_BLANKINGSRC_TIM1_OC5 (COMP_CFGR1_BLANKING_0): Comparator output blanking source TIM1 OC5, specific to instance: COMP1.

LL_COMP_BLANKINGSRC_TIM1_OC6 (COMP_CFGR1_BLANKING_0): Comparator output blanking source TIM1 OC6, specific to instance: COMP2.

LL_COMP_BLANKINGSRC_TIM2_OC3 (COMP_CFGR1_BLANKING_1): Comparator output blanking source TIM2 OC3.

LL_COMP_BLANKINGSRC_TIM5_OC3 (COMP_CFGR1_BLANKING_0 \ | COMP_CFGR1_BLANKING_1): Comparator output blanking source TIM5 OC3.

LL_COMP_BLANKINGSRC_TIM5_OC4 (COMP_CFGR1_BLANKING_2): Comparator output blanking source TIM5 OC4.

LL_COMP_BLANKINGSRC_TIM8_OC5 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_0): Comparator output blanking source TIM8 OC5.

LL_COMP_BLANKINGSRC_TIM15_OC2 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_1): Comparator output blanking source TIM15 OC2.

LL_COMP_BLANKINGSRC_LPTIM1_OC1 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_1 \ | COMP_CFGR1_BLANKING_0): Comparator output blanking source LPTIM1 OC1, specific to instance: COMP2.

group COMP_LL_EC_OUTPUT_BLANKING_SOURCE

Defines

LL_COMP_BLANKINGSRC_NONE (0x00000000UL): Comparator output without blanking

LL_COMP_BLANKINGSRC_TIM1_OC5 (COMP_CFGR1_BLANKING_0): Comparator output blanking source TIM1 OC5, specific to instance: COMP1.

LL_COMP_BLANKINGSRC_TIM1_OC6 (COMP_CFGR1_BLANKING_0): Comparator output blanking source TIM1 OC6, specific to instance: COMP2.

LL_COMP_BLANKINGSRC_TIM2_OC3 (COMP_CFGR1_BLANKING_1): Comparator output blanking source TIM2 OC3.

LL_COMP_BLANKINGSRC_TIM5_OC3 (COMP_CFGR1_BLANKING_0 \ | COMP_CFGR1_BLANKING_1): Comparator output blanking source TIM5 OC3.

LL_COMP_BLANKINGSRC_TIM5_OC4 (COMP_CFGR1_BLANKING_2): Comparator output blanking source TIM5 OC4.

LL_COMP_BLANKINGSRC_TIM8_OC5 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_0): Comparator output blanking source TIM8 OC5.

LL_COMP_BLANKINGSRC_TIM15_OC2 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_1): Comparator output blanking source TIM15 OC2.

LL_COMP_BLANKINGSRC_LPTIM1_OC1 (COMP_CFGR1_BLANKING_2 \ | COMP_CFGR1_BLANKING_1 \ | COMP_CFGR1_BLANKING_0): Comparator output blanking source LPTIM1 OC1, specific to instance: COMP2.

Comparator output - Output level ¶

group COMP_LL_EC_OUTPUT_LEVEL

Defines

LL_COMP_OUTPUT_LEVEL_LOW (0x00000000UL) ¶: Comparator output level low (with polarity not inverted)

LL_COMP_OUTPUT_LEVEL_HIGH (0x00000001UL) ¶: Comparator output level high (with polarity not inverted)

Definitions of COMP hardware constraints delays ¶

group COMP_LL_EC_HW_DELAYS

Note

Only COMP peripheral HW delays are defined in COMP LL driver driver, not timeout values.

Defines

LL_COMP_DELAY_STARTUP_US (80UL) ¶: Delay for comparator startup time. Delay set to maximum value (refer to device datasheet, parameter “tSTART”). Unit: us. Note: At comparator enable, delay required to reach propagation delay specification.

LL_COMP_DELAY_VOLTAGE_SCALER_STAB_US (220UL) ¶: Delay for comparator voltage scaler stabilization time Delay set to maximum value (refer to device datasheet, parameter “tSTART_SCALER”). Unit: us. Note: Voltage scaler is used when selecting comparator input based on VrefInt (VrefInt or subdivision of VrefInt). Note: To get scaler bridge configuration, refer to LL_COMP_IsInputScalerEnabled().

Comparator common modes - Window mode ¶

Note

This section is not available for STM32C562xx.

group COMP_LL_EC_COMMON_WINDOWMODE

Defines

LL_COMP_WINDOW_DISABLE (0x00000000UL) ¶: Window mode disable: comparators pair are independent

LL_COMP_WINDOW_INPUT_PLUS_ODD (COMP_CFGR1_WINMODE | LL_COMP_WINDOW_COMP_EVEN_REGOFFSET_MASK ) ¶: Window mode enable: comparators instances pair have their input plus connected together. The common input is the one of instance index odd (COMP1, …). Input plus of the other comparator is no more accessible.

LL_COMP_WINDOW_INPUT_PLUS_EVEN (COMP_CFGR1_WINMODE | LL_COMP_WINDOW_COMP_ODD_REGOFFSET_MASK ) ¶: Window mode enable: comparators instances pair have their input plus connected together. The common input is the one of instance index even (COMP2, …). Input plus of the other comparator is no more accessible.

Comparator common modes - Window output ¶

Note

This section is not available for STM32C562xx.

group COMP_LL_EC_COMMON_WINDOWOUTPUT

Defines

LL_COMP_WINDOW_OUTPUT_INDEPT (0x00000000UL ¶: Comparators window output default mode: both comparators output are independent, indicating each their own state. Note: To know signal state versus window thresholds, read each comparator output and perform a logical “exclusive or” operation.

LL_COMP_WINDOW_OUTPUT_XOR_ODD (COMP_CFGR1_WINOUT | LL_COMP_WINDOW_COMP_ODD_REGOFFSET_MASK ) ¶: Window output synthesized on COMP1 output: COMP1 output is no more indicating its own state, but global window mode state. Logical high means monitored signal is within comparators window. Note: impacts only comparator output signal level (propagated to GPIO, EXTI lines, timers, …), does not impact output digital state ( LL_COMP_ReadOutputLevel()) always reflecting each comparator output state.

LL_COMP_WINDOW_OUTPUT_XOR_EVEN (COMP_CFGR1_WINOUT | LL_COMP_WINDOW_COMP_EVEN_REGOFFSET_MASK ) ¶: Window output synthesized on COMP2 output: COMP2 output is no more indicating its own state, but global window mode state. Logical high means monitored signal is within comparators window. Note: impacts only comparator output signal level (propagated to GPIO, EXTI lines, timers, …), does not impact output digital state ( LL_COMP_ReadOutputLevel()) always reflecting each comparator output state.

LL_COMP_WINDOW_OUTPUT_XOR_BOTH (COMP_CFGR1_WINOUT | LL_COMP_WINDOW_COMP_EVEN_REGOFFSET_MASK \ | LL_COMP_WINDOW_OUT_XOR_BOTH_MASK ) ¶: Window output synthesized on both comparators output of pair of comparator selected (COMP1 and COMP2): both comparators outputs are no more indicating their own state, but global window mode state (XOR: logical “exclusive or”). Logical high means monitored signal is within comparators window thresholds). This is a specific configuration (technically possible but not relevant from application point of view: 2 comparators output used for the same signal level), standard configuration for window mode is one of the settings above. Note: impacts only comparator output signal level (propagated to GPIO, EXTI lines, timers, …), does not impact output digital state ( LL_COMP_ReadOutputLevel()) always reflecting each comparator output state.