LESENSE_ChDesc_TypeDef Struct Reference

LESENSE - Low Energy Sensor

Set to enable scan channel CHx.

Set to enable CHx pin.

Enable/disable channel interrupts after configuring all the sensor channel parameters.

Configure channel pin mode for the excitation phase of the scan sequence.

Note: OPAOUT is only available on channels 2, 3, 4, and 5.

Configure channel pin idle setup in LESENSE idle phase.

Set to use alternate excite pin for excitation.

Set to enable result from this channel being shifted into the decoder register.

Set to invert result bit stored in the SCANRES register.

Set to store counter value in the RAM (accessible via RESDATA) and make the comparison result available in the SCANRES register.

Select clock used for the excitation timing.

Select clock used for the sample delay timing.

Configure the excitation time.

Excitation will last exTime+1 excitation clock cycles. Valid range: 0-63 (6 bits).

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.

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.

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).

Select if the ACMP output, the ADC output or the counter output should be used in comparison.

Configure the interrupt generation mode for the CHx interrupt flag.

Configure the decision threshold for the sensor data comparison.

Valid range: 0-65535 (16 bits).

Select the mode for counter comparison.

Select the sensor evaluation mode.

Offset for IADC/ACMP interaction.

ACMP: offset determines which of the port I/O pins on the external override interface to access. IADC: offset determines which of the IADC scanner channels is sampled.