LESENSE_ChDesc_TypeDef Struct Reference
Channel descriptor structure.
#include <em_lesense.h>
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| bool | enaScanCh |
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Set to enable scan channel CHx.
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| bool | enaPin |
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Set to enable CHx pin.
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| bool | enaInt |
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Enable/disable channel interrupts after configuring all the sensor channel parameters.
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| LESENSE_ChPinExMode_TypeDef | chPinExMode |
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Configure channel pin mode for the excitation phase of the scan sequence.
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| LESENSE_ChPinIdleMode_TypeDef | chPinIdleMode |
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Configure channel pin idle setup in LESENSE idle phase.
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| bool | useAltEx |
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Set to use alternate excite pin for excitation.
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| bool | shiftRes |
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Set to enable result from this channel being shifted into the decoder register.
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| bool | invRes |
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Set to invert result bit stored in the SCANRES register.
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| bool | storeCntRes |
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Set to store counter value in the RAM (accessible via RESDATA) and make the comparison result available in the SCANRES register.
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| LESENSE_ChClk_TypeDef | exClk |
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Select clock used for the excitation timing.
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| LESENSE_ChClk_TypeDef | sampleClk |
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Select clock used for the sample delay timing.
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| uint8_t | exTime |
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Configure the excitation time.
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| uint8_t | sampleDelay |
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Configure the sample delay.
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| uint16_t | measDelay |
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Configure the measure delay.
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| uint16_t | acmpThres |
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Configure the ACMP threshold or the DAC data.
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| LESENSE_ChSampleMode_TypeDef | sampleMode |
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Select if the ACMP output, the ADC output or the counter output should be used in comparison.
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| LESENSE_ChIntMode_TypeDef | intMode |
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Configure the interrupt generation mode for the CHx interrupt flag.
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| uint16_t | cntThres |
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Configure the decision threshold for the sensor data comparison.
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| LESENSE_ChCompMode_TypeDef | compMode |
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Select the mode for counter comparison.
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Channel descriptor structure.
Field Documentation
◆ enaScanCh
| bool LESENSE_ChDesc_TypeDef::enaScanCh |
Set to enable scan channel CHx.
◆ enaPin
| bool LESENSE_ChDesc_TypeDef::enaPin |
Set to enable CHx pin.
◆ enaInt
| bool LESENSE_ChDesc_TypeDef::enaInt |
Enable/disable channel interrupts after configuring all the sensor channel parameters.
◆ chPinExMode
| LESENSE_ChPinExMode_TypeDef LESENSE_ChDesc_TypeDef::chPinExMode |
Configure channel pin mode for the excitation phase of the scan sequence.
Note: OPAOUT is only available on channels 2, 3, 4, and 5.
◆ chPinIdleMode
| LESENSE_ChPinIdleMode_TypeDef LESENSE_ChDesc_TypeDef::chPinIdleMode |
Configure channel pin idle setup in LESENSE idle phase.
◆ useAltEx
| bool LESENSE_ChDesc_TypeDef::useAltEx |
Set to use alternate excite pin for excitation.
◆ shiftRes
| bool LESENSE_ChDesc_TypeDef::shiftRes |
Set to enable result from this channel being shifted into the decoder register.
◆ invRes
| bool LESENSE_ChDesc_TypeDef::invRes |
Set to invert result bit stored in the SCANRES register.
◆ storeCntRes
| bool LESENSE_ChDesc_TypeDef::storeCntRes |
Set to store counter value in the RAM (accessible via RESDATA) and make the comparison result available in the SCANRES register.
◆ exClk
| LESENSE_ChClk_TypeDef LESENSE_ChDesc_TypeDef::exClk |
Select clock used for the excitation timing.
◆ sampleClk
| LESENSE_ChClk_TypeDef LESENSE_ChDesc_TypeDef::sampleClk |
Select clock used for the sample delay timing.
◆ exTime
| uint8_t LESENSE_ChDesc_TypeDef::exTime |
Configure the excitation time.
Excitation will last exTime+1 excitation clock cycles. Valid range: 0-63 (6 bits).
◆ sampleDelay
| uint8_t LESENSE_ChDesc_TypeDef::sampleDelay |
Configure the sample delay.
Sampling will occur after sampleDelay+1 sample clock cycles. Valid range: 0-127 (7 bits) or 0-255 (8 bits) depending on device.
◆ measDelay
| uint16_t LESENSE_ChDesc_TypeDef::measDelay |
Configure the measure delay.
Sensor measuring is delayed for measDelay excitation clock cycles. Valid range: 0-127 (7 bits) or 0-1023 (10 bits) depending on device.
◆ acmpThres
| uint16_t LESENSE_ChDesc_TypeDef::acmpThres |
Configure the ACMP threshold or the DAC data.
If perCtrl.dacCh0Data or perCtrl.dacCh1Data is set to lesenseDACIfData , acmpThres defines the 12-bit DAC data in the corresponding data register of DAC interface (DACn_CH0DATA and DACn_CH1DATA). In this case, the valid range is: 0-4095 (12 bits). If perCtrl.dacCh0Data or perCtrl.dacCh1Data is set to lesenseACMPThres, acmpThres defines the 6-bit Vdd scaling factor of ACMP negative input (VDDLEVEL in ACMP_INPUTSEL register). In this case, the valid range is: 0-63 (6 bits).
◆ sampleMode
| LESENSE_ChSampleMode_TypeDef LESENSE_ChDesc_TypeDef::sampleMode |
Select if the ACMP output, the ADC output or the counter output should be used in comparison.
◆ intMode
| LESENSE_ChIntMode_TypeDef LESENSE_ChDesc_TypeDef::intMode |
Configure the interrupt generation mode for the CHx interrupt flag.
◆ cntThres
| uint16_t LESENSE_ChDesc_TypeDef::cntThres |
Configure the decision threshold for the sensor data comparison.
Valid range: 0-65535 (16 bits).
◆ compMode
| LESENSE_ChCompMode_TypeDef LESENSE_ChDesc_TypeDef::compMode |
Select the mode for counter comparison.