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- #ifndef CAP_TOUCH_STRUCTURE
- #define CAP_TOUCH_STRUCTURE
- //******************************************************************************
- // structure.h
- //
- // Launch Pad MSP430G2452
- // 4 element wheel
- // middle button
- // proximity sensor
- //
- //
- // This file contains both application dependent and independent pieces. The
- // dependent piece must be updated along with structure.c, and carries the
- // naming conventions found in structure.c to the rest of the library.
- //
- //
- //
- //
- // Revision 0.06 Updated with case and format from Stye Guide
- //
- //******************************************************************************
- //******************************************************************************
- //******************************************************************************
- // The following elements need to be configured by the user.
- //******************************************************************************
-
- //#include "msp430.h"
- #include "msp430g2452.h"
- #include <stdint.h>
-
- /* Public Globals */
- extern const struct Element volume_down; // structure containing elements for
- extern const struct Element volume_up; //
- extern const struct Element right; //
- extern const struct Element left; //
- extern const struct Element middle_element; //
- extern const struct Element proximity_element; //
-
- extern const struct Sensor wheel;
-
- extern const struct Sensor middle_button; // structure of info for a given
-
- extern const struct Sensor proximity_sensor; // structure of info for a given
-
- //****** RAM ALLOCATION ********************************************************
- // TOTAL_NUMBER_OF_ELEMENTS defines the total number of elements used, even if
- // they are going to be segmented into seperate groups.
- // If the RAM_FOR_FLASH definition is removed, then the appropriate HEAP size
- // must be allocated. 2 bytes * MAXIMUM_NUMBER_OF_ELEMENTS_PER_SENSOR + 2 bytes
- // of overhead.
- #define TOTAL_NUMBER_OF_ELEMENTS 6
- #define RAM_FOR_FLASH
- //****** Structure Array Definition ********************************************
- // This defines the array size in the sensor strucure. In the event that
- // RAM_FOR_FLASH is defined, then this also defines the amount of RAM space
- // allocated (global variable) for computations.
- #define MAXIMUM_NUMBER_OF_ELEMENTS_PER_SENSOR 4
- //****** Choosing a Measurement Method ****************************************
- // These variables are references to the definitions found in structure.c and
- // must be generated per the application.
- // possible values for the method field
-
- // OSCILLATOR DEFINITIONS
- //#define RO_COMPAp_TA0_WDTp 64
- #define RO_PINOSC_TA0_WDTp 65
- //#define RO_PINOSC_TA0 66
- //#define RO_COMPAp_TA1_WDTp 67
- //#define RO_COMPB_TA0_WDTA 68
- //#define RO_COMPB_TA1_WDTA 69
- //#define RO_COMPAp_TA0_SW 70
- //#define RO_PINOSC_TA0_SW 71
-
- // RC DEFINITIONS
- //#define RC_PAIR_TA0 01
- //#define RC_PAIR_TA1 02
- //#define RC_PAIR_TD0 03
-
- // FAST RO DEFINITIONS
- //#define fRO_PINOSC_TA0_SW 25
- //#define fRO_COMPB_TA0_TA1 26
- //#define fRO_COMPB_TA0_TD0 27
-
- //****** WHEEL and SLIDER ******************************************************
- // Are wheel or slider representations used?
- //#define SLIDER
- #define ILLEGAL_SLIDER_WHEEL_POSITION 0xFFFF
- #define WHEEL
-
- //******************************************************************************
- // End of user configuration section.
- //******************************************************************************
- //******************************************************************************
- //******************************************************************************
-
- //possible timer source clock dividers, different from clock module dividers
- #define TIMER_TxCLK 0x0000 // ID_0, IDX_0
- #define TIMER_ACLK 0x0100
- #define TIMER_SMCLK 0x0200
- #define TIMER_INCLK 0x0300
-
- #define TIMER_SOURCE_DIV_0 0x0000
- #define TIMER_SOURCE_DIV_1 0x0040
- #define TIMER_SOURCE_DIV_2 0x0080
- #define TIMER_SOURCE_DIV_3 0x00C0
-
- #define GATE_WDT_ACLK 0x0004
- #define GATE_WDT_SMCLK 0x0000
-
- #define WDTp_GATE_32768 0x0000 // watchdog source/32768
- #define WDTp_GATE_8192 0x0001 // watchdog source/8192
- #define WDTp_GATE_512 0x0002 // watchdog source/512
- #define WDTp_GATE_64 0x0003 // watchdog source/64
-
- #define WDTA_GATE_2G 0x0000 // watchdog source/2G
- #define WDTA_GATE_128M 0x0001 // watchdog source/128M
- #define WDTA_GATE_8192K 0x0002 // watchdog source/8192K
- #define WDTA_GATE_512K 0x0003 // watchdog source/512K
- #define WDTA_GATE_32768 0x0004 // watchdog source/32768
- #define WDTA_GATE_8192 0x0005 // watchdog source/8192
- #define WDTA_GATE_512 0x0006 // watchdog source/512
- #define WDTA_GATE_64 0x0007 // watchdog source/64
-
- // The below variables are used to excluded portions of code not needed by
- // the method chosen by the user. Uncomment the type used prior to compilation.
- // Multiple types can be chosen as needed.
- // What Method(s) are used in this application?
-
- #ifdef RO_COMPAp_TA0_WDTp
- #define RO_TYPE
- #define RO_COMPAp_TYPE
- #define WDT_GATE
- //what devices have Pxsel2 ??
- // msp430f2112, 2122, 2132
- // msp430G2112, G2212, G2312, G2412, G2152, G2252, G2352, G2452
- // SEL2REGISTER
- #ifdef __MSP430F2112
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430F2122
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430F2132
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2112
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2212
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2312
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2412
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2152
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2252
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2352
- #define SEL2REGISTER
- #endif
- #ifdef __MSP430G2452
- #define SEL2REGISTER
- #endif
- #endif
-
- #ifdef RO_PINOSC_TA0_WDTp
- #define RO_TYPE
- #define RO_PINOSC_TYPE
- #define WDT_GATE
- #endif
-
- #ifdef RO_PINOSC_TA0
- #define RO_TYPE
- #define RO_PINOSC_TYPE
- #define ACCUMULATE_TYPE
- #endif
-
- #ifdef RO_COMPAp_TA1_WDTp
- #define RO_TYPE
- #define RO_COMPAp_TYPE
- #define WDT_GATE
- #endif
-
- #ifdef RO_COMPB_TA0_WDTA
- #define RO_TYPE
- #define RO_COMPB_TYPE
- #define WDT_GATE
- #endif
-
- #ifdef RO_COMPB_TA1_WDTA
- #define RO_TYPE
- #define RO_COMPB_TYPE
- #define WDT_GATE
- #endif
-
- #ifdef RO_COMPAp_TA0_SW
- #define RO_TYPE
- #define RO_COMPAp_TYPE
- #endif
-
- #ifdef RO_PINOSC_TA0_SW
- #define RO_TYPE
- #define RO_PINOSC_TYPE
- #endif
-
- #ifdef RC_PAIR_TA0
- #define RC_TYPE
- #define RC_PAIR_TYPE
- #define ACCUMULATE_TYPE
- #endif
-
- #ifdef RC_PAIR_TA1
- #define RC_TYPE
- #define RC_PAIR_TYPE
- #endif
-
- #ifdef RC_PAIR_TD0
- #define RC_TYPE
- #define RC_PAIR_TYPE
- #endif
-
- #ifdef fRO_PINOSC_TA0_SW
- #define RO_TYPE
- #define RO_PINOSC_TYPE
- #define ACCUMULATE_TYPE
- #endif
-
- #ifdef fRO_COMPB_TA0_TA1
- #define RO_TYPE
- #define FAST_SCAN_RO_COMP_TYPE
- #endif
-
- #ifdef fRO_COMPB_TA0_TD0
- #define RO_TYPE
- #define FAST_SCAN_RO_COMP_TYPE
- #endif
-
- #ifdef SLIDER
- #define SLIDER_WHEEL
- #endif
-
- #ifdef WHEEL
- #define SLIDER_WHEEL
- #endif
-
- #define RO_MASK 0xC0 // 1100 0000
- #define RC_FRO_MASK 0x3F // 0011 1111
-
- //******************************************************************************
- // The sensor structure identifies port or comparator input definitions for each
- // sensor.
- //******************************************************************************
- struct Element{
-
- #ifdef RO_PINOSC_TYPE
- // These register address definitions are needed for each sensor only
- // when using the PinOsc method
- volatile uint8_t *inputPxselRegister; // PinOsc: port selection address
- volatile uint8_t *inputPxsel2Register; // PinOsc: port selection 2 address
- #endif
-
- #ifdef RC_PAIR_TYPE
- // these fields are specific to the RC type.
- uint8_t *inputPxoutRegister; // RC: port output address: PxOUT
- volatile uint8_t *inputPxinRegister; // RC: port input address: PxIN
- uint8_t *inputPxdirRegister; // RC+PinOsc: port direction address
- uint8_t *referencePxoutRegister;// RC: port output address: PxOUT
- uint8_t *referencePxdirRegister;// RC: port direction address: PxDIR
- uint8_t referenceBits; // RC: port bit definition
- #endif
-
- uint16_t inputBits; // Comp_RO+FastRO+RC+PinOsc: bit
- // definition
- //
- // for comparator input bit
- // location in CACTL2 or CBCTL0
-
- uint16_t threshold; // specific threshold for each button
- uint16_t maxResponse; // Special Case: Slider max counts
- };
-
- //******************************************************************************
- // The following structure definitons are application independent and are not
- // intended to be modified.
- //
- // The CT_handler 'groups' the sensor based upon function and capacitive
- // measurement method.
- //******************************************************************************
-
- struct Sensor{
- // the method acts as the switch to determine which HAL is called
- uint8_t halDefinition; // COMPARATOR_TYPE (RO), RC, etc
- // RO_COMPA, RO_COMPB, RO_PINOSC
- // RC_GPIO, RC_COMPA, RC_COMPB
- // FAST_SCAN_RO
-
- uint8_t numElements; // number of elements within group
- uint8_t baseOffset; // the offset within the global
- // base_cnt array
-
- struct Element const *arrayPtr[MAXIMUM_NUMBER_OF_ELEMENTS_PER_SENSOR];
- // an array of pointers
-
- //******************************************************************************
- // Reference structure definitions for comparator types, for the RC method the
- // reference is defined within the element.
-
- #ifdef RO_COMPAp_TYPE
- uint8_t * refPxoutRegister; // RO+FastRO: port output address
- uint8_t * refPxdirRegister; // RO+FastRO: port direction address
- uint8_t refBits; // RO+FastRO: port bit definition
-
- uint8_t * txclkDirRegister; // PxDIR
- uint8_t * txclkSelRegister; // PxSEL
- uint8_t txclkBits; // Bit field for register
-
- uint8_t *caoutDirRegister; // PxDIR
- uint8_t *caoutSelRegister; // PxSEL
- uint8_t caoutBits; // Bit field for register
-
- // This is only applicable to the RO_COMPAp_TYPE
- #ifdef SEL2REGISTER
- uint8_t *caoutSel2Register;
- uint8_t *txclkSel2Register;
- #endif
-
- uint8_t refCactl2Bits; // RO: CACTL2 input definition,
- // CA0 (P2CA0),CA1(P2CA4),
- // CA2(P2CA0+P2CA4)
- uint8_t capdBits;
- #endif
-
- #ifdef RO_COMPB_TYPE
- uint8_t *cboutTAxDirRegister; // CBOUT_TA0CLK
- uint8_t *cboutTAxSelRegister; // CBOUT_TA0CLK
- uint8_t cboutTAxBits; // Bit field for register
- uint16_t cbpdBits;
- #endif
-
- //*****************************************************************************
- // Timer definitions
- // The basic premise is to count a number of clock cycles within a time
- // period, where either the clock source or the timer period is a function
- // of the element capacitance.
- //
- // RC Method:
- // Period: accumulationCycles * charge and discharge time of RC
- // circuit where C is captouch element
- //
- // clock source: measGateSource/sourceScale
- // RO Method:
- // Period: accumulationCycles*measGateSource/sourceScale
- // (with WDT sourceScale = 1, accumulationCycles is WDT control
- // register settings)
- //
- // clock source: relaxation oscillator where freq is a function of C
- //
- // fRO Method:
- // Period: accumulationCycles * 1/freq, freq is a function of C
- //
- // clock source: measGateSource/sourceScale
-
- uint16_t measGateSource; // RC+FastRO: measurement timer source,
- // {ACLK, TACLK, SMCLK}
- // Comp_RO+PinOsc: gate timer source,
- // {ACLK, TACLK, SMCLK}
- uint16_t sourceScale; // Comp_RO+FastRO+PinOsc: gate timer,
- // TA/TB/TD, scale: 1,1/2,1/4,1/8
- // RC+FastRO: measurement timer, TA/TB/TD
- // scale: 16, 8, 4, 2, 1, �, �, 1/8
-
- uint16_t accumulationCycles;
-
- //*****************************************************************************
- // Other definitions
-
- #ifdef SLIDER_WHEEL
- uint8_t points; // Special Case: Number of points
- // along slider or wheel
- uint8_t sensorThreshold;
- #endif
-
- };
-
- //******************************************************************************
- // The scheduler structure manages each handler group (CT_Handler object) using
- // one timer resource.
- // TBD
- //******************************************************************************
- struct CT_scheduler{
- void *callBacks;
- // pointer to function in the main application (can be an array of functions
- // if multiple groups). The order is important! The pointer here must point
- // to the first CT_Handler object!
-
- struct CT_Handler *handler; // order of this and *call_backs
- // must be the same.
-
- uint8_t Enable; // Each bit in this value will show
- // if the given group element
- // is being sheduled & measured.
-
- uint8_t delayTimer; // delay timer, {SW,WDT, TimerA,
- // TimerB, TimerD}
-
- uint8_t delayTimerSrc; // delay timer source,
- // {ACLK, TACLK, SMCLK}
-
- uint8_t delayTimerScale; // delay time scale (/1,/2,/4,/8)
-
- uint8_t delayTime; // wdt: delay {32768,8192,512,64}
- // RO+FastRO+PinOsc(TimerA,B,D):
- // delay time {257+x*256}
-
- };
- #endif
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