Silicon Labs
Driver for the capacitive sense slider available on the EFM32 Giant, Wonder and Leopard starter kits.
Dependents: EFM32 RDA5807M RDS Radio EMF32-Segment-Touch-Demo EFM32_Bugs MFALHIMOHAMMED ... more
Information
All examples in this repo are considered EXPERIMENTAL QUALITY, meaning this code has been created as one-off proof-of-concept and is suitable as a demonstration for experimental purposes only. This code will not be regularly maintained by Silicon Labs and there is no guarantee that these projects will work across all environments, SDK versions and hardware.
capsenseconfig_lg_stk.h
- Committer:
- Steven Cooreman
- Date:
- 2015-05-04
- Revision:
- 3:8d096e5bc045
- Parent:
- 2:f361a6f65884
File content as of revision 3:8d096e5bc045:
/***************************************************************************//**
* @file
* @brief Low Energy Sensor (LESENSE) configuration file for capacitive slider
* on EFM32 Leopard Gecko STK (STK_3600).
* @version 3.20.5
*******************************************************************************
* @section License
* <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b>
*******************************************************************************
*
* This file is licensensed under the Silabs License Agreement. See the file
* "Silabs_License_Agreement.txt" for details. Before using this software for
* any purpose, you must agree to the terms of that agreement.
*
******************************************************************************/
#include "em_lesense.h"
/***************************************************************************//**
* @addtogroup Drivers
* @{
******************************************************************************/
/***************************************************************************//**
* @addtogroup CapSense
* @{
******************************************************************************/
#ifdef __cplusplus
extern "C" {
#endif
/**************************************************************************//**
* Macro definitions
*****************************************************************************/
#define CAPLESENSE_SENSITIVITY_OFFS 1U
#define CAPLESENSE_NUMOF_SLIDERS 4 /**< Number of sliders */
#define CAPLESENSE_ACMP_VDD_SCALE LESENSE_ACMP_VDD_SCALE /**< Upper voltage threshold */
#define CAPLESENSE_SLIDER_PORT0 gpioPortC /**< Slider Port. GPIO Port C */
#define CAPLESENSE_SLIDER0_PORT CAPLESENSE_SLIDER_PORT0 /**< Slider 0 Port. GPIO Port C */
#define CAPLESENSE_SLIDER0_PIN 8UL /**< Slider 0 Pin 8 */
#define CAPLESENSE_SLIDER1_PORT CAPLESENSE_SLIDER_PORT0 /**< Slider 1 Port. GPIO Port C */
#define CAPLESENSE_SLIDER1_PIN 9UL /**< Slider 1 Pin 9 */
#define CAPLESENSE_SLIDER2_PORT CAPLESENSE_SLIDER_PORT0 /**< Slider 2 Port. GPIO Port C */
#define CAPLESENSE_SLIDER2_PIN 10UL /**< Slider 2 Pin 10 */
#define CAPLESENSE_SLIDER3_PORT CAPLESENSE_SLIDER_PORT0 /**< Slider 3 Port. GPIO Port C */
#define CAPLESENSE_SLIDER3_PIN 11UL /**< Slider 3 Pin 11 */
#define CAPLESENSE_CHANNEL_INT (LESENSE_IF_CH8 | LESENSE_IF_CH9 | LESENSE_IF_CH10 | LESENSE_IF_CH11)
#define LESENSE_CHANNELS 16 /**< Number of channels for the Low Energy Sensor Interface. */
#define SLIDER_PART0_CHANNEL 8 /**< Touch slider channel Part 0 */
#define SLIDER_PART1_CHANNEL 9 /**< Touch slider channel Part 1 */
#define SLIDER_PART2_CHANNEL 10 /**< Touch slider channel Part 2 */
#define SLIDER_PART3_CHANNEL 11 /**< Touch slider channel Part 3 */
/** Upper voltage threshold. */
#define LESENSE_ACMP_VDD_SCALE 0x37U
#define LESENSE_CAPSENSE_CH_IN_USE {\
/* Ch0, Ch1, Ch2, Ch3, Ch4, Ch5, Ch6, Ch7 */\
false, false, false, false, false, false, false, false,\
/* Ch8, Ch9, Ch10, Ch11, Ch12, Ch13, Ch14, Ch15 */\
true, true, true, true, false, false, false, false\
}
/** Configuration for capacitive sense channels in sense mode. */
#define LESENSE_CAPSENSE_CH_CONF_SENSE \
{ \
true, /* Enable scan channel. */ \
true, /* Enable the assigned pin on scan channel. */ \
false, /* Disable interrupts on channel. */ \
lesenseChPinExDis, /* GPIO pin is disabled during the excitation period. */ \
lesenseChPinIdleDis, /* GPIO pin is disabled during the idle period. */ \
false, /* Don't use alternate excitation pins for excitation. */ \
false, /* Disabled to shift results from this channel to the decoder register. */ \
false, /* Disabled to invert the scan result bit. */ \
true, /* Enabled to store counter value in the result buffer. */ \
lesenseClkLF, /* Use the LF clock for excitation timing. */ \
lesenseClkLF, /* Use the LF clock for sample timing. */ \
0x00U, /* Excitation time is set to 0 excitation clock cycles. */ \
0x0FU, /* Sample delay is set to 15(+1) sample clock cycles. */ \
0x00U, /* Measure delay is set to 0 excitation clock cycles.*/ \
LESENSE_ACMP_VDD_SCALE, /* ACMP threshold has been set to LESENSE_ACMP_VDD_SCALE. */ \
lesenseSampleModeCounter, /* ACMP will be used in comparison. */ \
lesenseSetIntLevel, /* Interrupt is generated if the sensor triggers. */ \
0x00U, /* Counter threshold has been set to 0x00. */ \
lesenseCompModeLess /* Compare mode has been set to trigger interrupt on "less". */ \
}
/** Configuration for capacitive sense channels in sleep mode. */
#define LESENSE_CAPSENSE_CH_CONF_SLEEP \
{ \
true, /* Enable scan channel. */ \
true, /* Enable the assigned pin on scan channel. */ \
true, /* Enable interrupts on channel. */ \
lesenseChPinExDis, /* GPIO pin is disabled during the excitation period. */ \
lesenseChPinIdleDis, /* GPIO pin is disabled during the idle period. */ \
false, /* Don't use alternate excitation pins for excitation. */ \
false, /* Disabled to shift results from this channel to the decoder register. */ \
false, /* Disabled to invert the scan result bit. */ \
true, /* Enabled to store counter value in the result buffer. */ \
lesenseClkLF, /* Use the LF clock for excitation timing. */ \
lesenseClkLF, /* Use the LF clock for sample timing. */ \
0x00U, /* Excitation time is set to 0 excitation clock cycles. */ \
0x01U, /* Sample delay is set to 1(+1) sample clock cycles. */ \
0x00U, /* Measure delay is set to 0 excitation clock cycles.*/ \
LESENSE_ACMP_VDD_SCALE, /* ACMP threshold has been set to LESENSE_ACMP_VDD_SCALE. */ \
lesenseSampleModeCounter, /* Counter will be used in comparison. */ \
lesenseSetIntLevel, /* Interrupt is generated if the sensor triggers. */ \
0x0EU, /* Counter threshold has been set to 0x0E. */ \
lesenseCompModeLess /* Compare mode has been set to trigger interrupt on "less". */ \
}
/** Configuration for disabled channels. */
#define LESENSE_DISABLED_CH_CONF \
{ \
false, /* Disable scan channel. */ \
false, /* Disable the assigned pin on scan channel. */ \
false, /* Disable interrupts on channel. */ \
lesenseChPinExDis, /* GPIO pin is disabled during the excitation period. */ \
lesenseChPinIdleDis, /* GPIO pin is disabled during the idle period. */ \
false, /* Don't use alternate excitation pins for excitation. */ \
false, /* Disabled to shift results from this channel to the decoder register. */ \
false, /* Disabled to invert the scan result bit. */ \
false, /* Disabled to store counter value in the result buffer. */ \
lesenseClkLF, /* Use the LF clock for excitation timing. */ \
lesenseClkLF, /* Use the LF clock for sample timing. */ \
0x00U, /* Excitation time is set to 5(+1) excitation clock cycles. */ \
0x00U, /* Sample delay is set to 7(+1) sample clock cycles. */ \
0x00U, /* Measure delay is set to 0 excitation clock cycles.*/ \
0x00U, /* ACMP threshold has been set to 0. */ \
lesenseSampleModeCounter, /* ACMP output will be used in comparison. */ \
lesenseSetIntNone, /* No interrupt is generated by the channel. */ \
0x00U, /* Counter threshold has been set to 0x01. */ \
lesenseCompModeLess /* Compare mode has been set to trigger interrupt on "less". */ \
}
/** Configuration for scan in sense mode. */
#define LESENSE_CAPSENSE_SCAN_CONF_SENSE \
{ \
{ \
LESENSE_DISABLED_CH_CONF, /* Channel 0. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 1. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 2. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 3. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 4. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 5. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 6. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 7. */ \
LESENSE_CAPSENSE_CH_CONF_SENSE, /* Channel 8. */ \
LESENSE_CAPSENSE_CH_CONF_SENSE, /* Channel 9. */ \
LESENSE_CAPSENSE_CH_CONF_SENSE, /* Channel 10. */ \
LESENSE_CAPSENSE_CH_CONF_SENSE, /* Channel 11. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 12. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 13. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 14. */ \
LESENSE_DISABLED_CH_CONF /* Channel 15. */ \
} \
}
/** Configuration for scan in sleep mode. */
#define LESENSE_CAPSENSE_SCAN_CONF_SLEEP \
{ \
{ \
LESENSE_DISABLED_CH_CONF, /* Channel 0. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 1. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 2. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 3. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 4. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 5. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 6. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 7. */ \
LESENSE_CAPSENSE_CH_CONF_SLEEP, /* Channel 8. */ \
LESENSE_CAPSENSE_CH_CONF_SLEEP, /* Channel 9. */ \
LESENSE_CAPSENSE_CH_CONF_SLEEP, /* Channel 10. */ \
LESENSE_CAPSENSE_CH_CONF_SLEEP, /* Channel 11. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 12. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 13. */ \
LESENSE_DISABLED_CH_CONF, /* Channel 14. */ \
LESENSE_DISABLED_CH_CONF /* Channel 15. */ \
} \
}
#ifdef __cplusplus
}
#endif
/** @} (end group CapSense) */
/** @} (end group Drivers) */
