efm32g/html/si114x__functions_8h_source.html

 /*************************************************************************/

 #ifndef SI114X_FUNCTIONS_H

 #define SI114X_FUNCTIONS_H


 /***************************************************************************/

 /***************************************************************************/

 #include "si114x_types.h"


 #ifdef __cplusplus

 extern "C" {

 #endif


 /*******************************************************************************

  *******************************   STRUCTS   ***********************************

  ******************************************************************************/


 /***************************************************************************/

 typedef struct

 {

     uint32_t    vispd_correction;

     uint32_t    irpd_correction;

     uint32_t    adcrange_ratio;

     uint32_t    irsize_ratio;

     uint32_t    ledi_ratio;

     uint8_t*    ucoef_p;

 } SI114X_CAL_S;


 /*******************************************************************************

  ***************   Functions Needed by Si114x_functions.c   ********************

  ******************************************************************************/


 int16_t Si114xWriteToRegister(HANDLE si114x_handle,

                               uint8_t address,

                               uint8_t value);

 int16_t Si114xReadFromRegister(HANDLE si114x_handle, uint8_t address);

 int16_t Si114xBlockWrite(HANDLE si114x_handle,

                          uint8_t  address,

                          uint8_t  length,

                          uint8_t* values);

 int16_t Si114xBlockRead(HANDLE si114x_handle,

                         uint8_t  address,

                         uint8_t  length,

                         uint8_t* values);

 void delay_10ms(void);


 void delay_1ms(void);


 /*******************************************************************************

  ***************   Functions supplied by Si114x_functions.c   ******************

  ******************************************************************************/


 int16_t  Si114xReset(HANDLE si114x_handle);

 int16_t  Si114xPauseAll(HANDLE si114x_handle);

 int16_t  Si114xNop(HANDLE si114x_handle);

 int16_t  Si114xPsForce(HANDLE si114x_handle);

 int16_t  Si114xAlsForce(HANDLE si114x_handle);

 int16_t  Si114xPsAlsForce(HANDLE si114x_handle);

 int16_t  Si114xPsAlsAuto(HANDLE si114x_handle);

 int16_t  Si114xParamSet(HANDLE si114x_handle, uint8_t address, uint8_t value);

 int16_t  Si114xParamRead(HANDLE si114x_handle, uint8_t address);

 uint8_t  Compress(uint16_t input);

 uint16_t Uncompress(uint8_t input);

 int16_t  si114x_get_calibration(HANDLE si114x_handle,

                                 SI114X_CAL_S* si114x_cal,

                                 uint8_t security);

 int16_t si114x_set_ucoef(HANDLE si114x_handle,

                          uint8_t* input_ucoef,

                          SI114X_CAL_S* si114x_cal );


 /*******************************************************************************

  ************************** Si114x I2C Registers *******************************

  ******************************************************************************/

 #define REG_PART_ID               0x00

 #define REG_REV_ID                0x01

 #define REG_SEQ_ID                0x02

 #define REG_INT_CFG               0x03

 #define REG_IRQ_ENABLE            0x04

 #define REG_IRQ_MODE1             0x05

 #define REG_IRQ_MODE2             0x06

 #define REG_HW_KEY                0x07

 #define REG_MEAS_RATE             0x08

 #define REG_ALS_RATE              0x09

 #define REG_PS_RATE               0x0A

 #define REG_ALS_LO_TH_LSB         0x0B

 #define REG_ALS_LO_TH_MSB         0x0C

 #define REG_ALS_HI_TH_LSB         0x0D

 #define REG_ALS_HI_TH_MSB         0x0E

 #define REG_PS_LED21              0x0F

 #define REG_PS_LED3               0x10

 #define REG_PS1_TH_LSB            0x11

 #define REG_PS1_TH_MSB            0x12

 #define REG_PS2_TH_LSB            0x13

 #define REG_PS2_TH_MSB            0x14

 #define REG_PS3_TH_LSB            0x15

 #define REG_PS3_TH_MSB            0x16

 #define REG_PARAM_WR              0x17

 #define REG_COMMAND               0x18

 #define REG_RESPONSE              0x20

 #define REG_IRQ_STATUS            0x21

 #define REG_ALS_VIS_DATA0         0x22

 #define REG_ALS_VIS_DATA1         0x23

 #define REG_ALS_IR_DATA0          0x24

 #define REG_ALS_IR_DATA1          0x25

 #define REG_PS1_DATA0             0x26

 #define REG_PS1_DATA1             0x27

 #define REG_PS2_DATA0             0x28

 #define REG_PS2_DATA1             0x29

 #define REG_PS3_DATA0             0x2A

 #define REG_PS3_DATA1             0x2B

 #define REG_AUX_DATA0             0x2C

 #define REG_AUX_DATA1             0x2D

 #define REG_PARAM_OUT             0x2E

 #define REG_PARAM_RD              0x2E

 #define REG_CHIP_STAT             0x30

 #define REG_UCOEF0                0x13

 #define REG_UCOEF1                0x14

 #define REG_UCOEF2                0x15

 #define REG_UCOEF3                0x16

 #define REG_MEAS_RATE_LSB         0x08

 #define REG_MEAS_RATE_MSB         0x09


 /*******************************************************************************

  ************************** Si114x I2C Parameter Offsets ***********************

  ******************************************************************************/

 #define PARAM_I2C_ADDR            0x00

 #define PARAM_CH_LIST             0x01

 #define PARAM_PSLED12_SELECT      0x02

 #define PARAM_PSLED3_SELECT       0x03

 #define PARAM_FILTER_EN           0x04

 #define PARAM_PS_ENCODING         0x05

 #define PARAM_ALS_ENCODING        0x06

 #define PARAM_PS1_ADC_MUX         0x07

 #define PARAM_PS2_ADC_MUX         0x08

 #define PARAM_PS3_ADC_MUX         0x09

 #define PARAM_PS_ADC_COUNTER      0x0A

 #define PARAM_PS_ADC_CLKDIV       0x0B

 #define PARAM_PS_ADC_GAIN         0x0B

 #define PARAM_PS_ADC_MISC         0x0C

 #define PARAM_VIS_ADC_MUX         0x0D

 #define PARAM_IR_ADC_MUX          0x0E

 #define PARAM_AUX_ADC_MUX         0x0F

 #define PARAM_ALSVIS_ADC_COUNTER  0x10

 #define PARAM_ALSVIS_ADC_CLKDIV   0x11

 #define PARAM_ALSVIS_ADC_GAIN     0x11

 #define PARAM_ALSVIS_ADC_MISC     0x12

 #define PARAM_ALS_HYST            0x16

 #define PARAM_PS_HYST             0x17

 #define PARAM_PS_HISTORY          0x18

 #define PARAM_ALS_HISTORY         0x19

 #define PARAM_ADC_OFFSET          0x1A

 #define PARAM_SLEEP_CTRL          0x1B

 #define PARAM_LED_RECOVERY        0x1C

 #define PARAM_ALSIR_ADC_COUNTER   0x1D

 #define PARAM_ALSIR_ADC_CLKDIV    0x1E

 #define PARAM_ALSIR_ADC_GAIN      0x1E

 #define PARAM_ALSIR_ADC_MISC      0x1F


 /*******************************************************************************

  *******    Si114x Register and Parameter Bit Definitions  *********************

  ******************************************************************************/


 // REG_IRQ_CFG

 #define  ICG_INTOE                0x01

 #define  ICG_INTMODE              0x02


 // REG_IRQ_ENABLE

 // REG_IRQ_STATUS

 #define IE_NONE                   0x00


 #define IE_ALS_NONE               0x00

 #define IE_ALS_EVRYSAMPLE         0x01

 #define IE_ALS_EXIT_WIN           0x01

 #define IE_ALS_ENTER_WIN          0x02


 #define IE_PS1_NONE               0x00

 #define IE_PS1_EVRYSAMPLE         0x04

 #define IE_PS1_CROSS_TH           0x04

 #define IE_PS1_EXCEED_TH          0x04

 #define IE_PS1                    0x04


 #define IE_PS2_NONE               0x00

 #define IE_PS2_EVRYSAMPLE         0x08

 #define IE_PS2_CROSS_TH           0x08

 #define IE_PS2_EXCEEED_TH         0x08

 #define IE_PS2                    0x08


 #define IE_PS3_NONE               0x00

 #define IE_PS3_EVRYSAMPLE         0x10

 #define IE_PS3_CROSS_TH           0x10

 #define IE_PS3_EXCEED_TH          0x10

 #define IE_PS3                    0x10


 #define IE_CMD                    0x20


 #define IE_ALL                    0x3F


 // REG_IRQ_MODE1

 #define IM1_NONE                  0x00

 #define IM1_ALS_NONE              0x00

 #define IM1_ALS_EVRYSAMPLE        0x00

 #define IM1_ALS_VIS_EXIT          0x01

 #define IM1_ALS_VIS_ENTER         0x05

 #define IM1_ALS_IR_EXIT           0x03

 #define IM1_ALS_IR_ENTER          0x06


 #define IM1_PS1_NONE              0x00

 #define IM1_PS1_EVRYSAMPLE        (0x0<<4)

 #define IM1_PS1_CROSS_TH          (0x1<<4)

 #define IM1_PS1_EXCEED_TH         (0x3<<4)


 #define IM1_PS2_NONE              0x00

 #define IM1_PS2_EVRYSAMPLE        (0x0<<6)

 #define IM1_PS2_CROSS_TH          (0x1<<6)

 #define IM1_PS2_EXCEED_TH         (0x3<<6)


 // REG_IRQ_MODE1

 #define IM2_PS3_NONE              0x00

 #define IM2_PS3_EVRYSAMPLE        (0x0)

 #define IM2_PS3_CROSS_TH          (0x1)

 #define IM2_PS3_EXCEED_TH         (0x3)


 //

 // REG_PS_LED21   LED2 Current is upper nibble

 //                LED1 Current is lower nibble

 //

 // REG_PS_LED3    LED3 Current is lower nibble

 #define LEDI_000                  0x00

 #define LEDI_006                  0x01

 #define LEDI_011                  0x02

 #define LEDI_022                  0x03

 #define LEDI_045                  0x04

 #define LEDI_067                  0x05

 #define LEDI_090                  0x06

 #define LEDI_112                  0x07

 #define LEDI_135                  0x08

 #define LEDI_157                  0x09

 #define LEDI_180                  0x0A

 #define LEDI_202                  0x0B

 #define LEDI_224                  0x0C

 #define LEDI_269                  0x0D

 #define LEDI_314                  0x0E

 #define LEDI_359                  0x0F


 // PARAM_CH_LIST

 #define PS1_TASK                  0x01

 #define PS2_TASK                  0x02

 #define PS3_TASK                  0x04

 #define ALS_VIS_TASK              0x10

 #define ALS_IR_TASK               0x20

 #define AUX_TASK                  0x40


 //

 // ADC Counters

 // PARAM_PS_ADC_COUNTER

 // PARAM_ALSVIS_ADC_COUNTER

 // PARAM_ALSIR_ADC_COUNTER

 //

 #define RECCNT_001                0x00

 #define RECCNT_007                0x10

 #define RECCNT_015                0x20

 #define RECCNT_031                0x30

 #define RECCNT_063                0x40

 #define RECCNT_127                0x50

 #define RECCNT_255                0x60

 #define RECCNT_511                0x70


 //

 // Proximity LED Selection

 // PARAM_PSLED12_SELECT  PS2 LED Choice is Upper Nibble

 //                       PS1 LED Choice is Lower Nibble

 //

 // PARAM_PSLED3_SELECT   PS3 LED Choice is Lower Nibble

 //

 // Each of the three PS measurements can choose whichever

 // irLED to light up during the measurement, with whichever

 // combination desired.

 #define NO_LED                    0x00

 #define LED1_EN                   0x01

 #define LED2_EN                   0x02

 #define LED3_EN                   0x04

 #define SEL_LED1_PS1              (LED1_EN)

 #define SEL_LED2_PS1              (LED2_EN)

 #define SEL_LED3_PS1              (LED3_EN)

 #define SEL_LED1_PS2              (LED1_EN<<4)

 #define SEL_LED2_PS2              (LED2_EN<<4)

 #define SEL_LED3_PS2              (LED3_EN<<4)

 #define SEL_LED1_PS3              (LED1_EN)

 #define SEL_LED2_PS3              (LED2_EN)

 #define SEL_LED3_PS3              (LED3_EN)


 //

 // PARAM_PS_ENCODING

 // When these bits are set the corresponding measurement

 // will report the least significant bits of the

 // ADC is used instead of the most significant bits

 #define PS1_LSB                   0x10

 #define PS2_LSB                   0x20

 #define PS3_LSB                   0x40

 #define PS_ENCODING_MASK          0x70


 //

 // PARAM_ALS_ENCODING

 // When these bits are set the corresponding measurement

 // will report the least significant bits of the

 // ADC is used instead of the most significant bits

 #define ALS_VIS_LSB               0x10

 #define ALS_IR_LSB                0x20

 #define AUX_LSB                   0x40

 #define ALS_ENCODING_MASK         0xCF


 //

 // PARAM_PS_ADC_MISC

 // PARAM_ALS_VIS_ADC_MISC

 // PARAM_ALS_IR_ADC_MISC

 //

 // PS_MODE_MEAS_MODE and NOT_PS_MEAS_MODE are applicable only

 // for PARAM_PS_ADC_MISC.

 //

 //    PS_MEAS_MODE is used to perform normal Proximity measurements.

 //    While in this operatinal mode, it is possible to choose either

 //    the small IR photodiode or big IR photodiode. The big IR

 //    photodiode is the default for normal operation. The small IR

 //    photodiode is typically not used, but it is possible to use it

 //    for proximity measurements.

 //

 //    NOT_PS_MEAS_MODE can be applied to PARAM_PS_ADC_MISC.

 //

 //    This allows three PS channels to perform RAW ADC measurements

 //    on any source (no irLED driven). These measurements will have no

 //    reference, and will have an offset of 0x4000 if the most

 //    significant 16 bits of the 17-bit ADC is reported. Otherwise,

 //    if the PARAM_xxx_ENCODING _LSB settings are set, then the

 //    offset will be 0x8000 (due to bit shifting).

 //

 //    When performing voltage measurements (INT, LED1, LED2, TEMP),

 //    a separate VSS measurement should be subtracted from the reading.

 //

 //    When performing measurement with visible photodiode, first take

 //    a no-led measurement and subtract away the visible light measurement.

 //

 //    When performing an optical measurement using either two IR

 //    photodiodes, one should subtract away the no-led measurement from

 //    the IR measurement.

 //

 //    Note that the subtraction ordering is significant between

 //    taking visible light photodiode vs IR photodiode

 //    measurement. The raw ADC reading of visible light photodiode

 //    decreases with increasing light levels while the raw ADC reading

 //    of IR light photodiode increases with increasing light levels.

 //

 // HSIG_EN means 'high signal range enable'. The ADC would

 // be able to operate with higher light levels, but at the

 // expense of sensitivity. This setting can be used for

 // operation under direct sunlight.

 //

 // PARAM_PS_ADC_MISC, PARAM_ALSVIS_ADC_MISC and PARAM_ALSIR_ADC_MISC

 // can use HSIG_EN also.

 //

 //

 #define NOT_PS_MEAS_MODE          0x00

 #define PS_MEAS_MODE              0x04

 #define HSIG_EN                   0x20

 #define RANGE_EN                  0x20


 #define ALS_IR_ADC_MISC_MASK      0x20

 #define ALS_VIS_ADC_MISC_MASK     0x20


 //

 // ADC Mux Settings

 // PARAM_PS1_ADC_MUX    See PARAM_PS_ADC_MISC also

 // PARAM_PS2_ADC_MUX    See PARAM_PS_ADC_MISC also

 // PARAM_PS3_ADC_MUX    See PARAM_PS_ADC_MISC also

 //

 // PARAM_VIS_ADC_MUX    MUX_ALS_VIS or MUX_NONE only

 // PARAM_IR_ADC_MUX     MUX_ALS_IR, MUX_PS_IR or MUX_NONE only

 // PARAM_AUX_ADC_MUX    MUX_VTEMP, MUX_LED1, MUX_LED2, MUX_INT

 //                      to use anything other than MUX_VTEMP,

 //                      ANA_IN_KEY should be unlocked first.

 //

 #define MUX_SMALL_IR              0x00

 #define MUX_VIS                   0x02

 #define MUX_LARGE_IR              0x03

 #define MUX_NO_PHOTO_DIODE        0x06

 #define MUX_VTEMP                 0x65

 #define MUX_INT                   0x05

 #define MUX_LED1                  0x15

 #define MUX_VSS                   0x25

 #define MUX_LED2                  0x35

 #define MUX_VDD                   0x75


 //

 // ADC Dividers

 // PARAM_PS_ADC_GAIN

 // PARAM_ALSVIS_ADC_GAIN

 // PARAM_ALSIR_ADC_GAIN

 //

 #define ADC_NORM                  0x00

 #define ADC_DIV2                  0x01

 #define ADC_DIV4                  0x02

 #define ADC_DIV8                  0x03

 #define ADC_DIV16                 0x04

 #define ADC_DIV32                 0x05

 #define ADC_DIV64                 0x06

 #define ADC_DIV128                0x07

 #define ADC_DIV256                0x08

 #define ADC_DIV512                0x09

 #define ADC_DIV1024               0x0A

 #define ADC_DIV2048               0x0B


 // Hardware Key value

 // REG_HW_KEY

 #define HW_KEY_VAL0               0x17


 // Sleep Control

 // PARAM_SLEEP_CTRL

 #define SLEEP_DISABLED            0x01


 // ANA_IN_KEY value

 #define ANA_KEY_38                0x10

 #define ANA_KEY_39                0x40

 #define AMA_KEY_3A                0x62

 #define ANA_KEY_3B                0x3b


 #ifdef __cplusplus

 }

 #endif


 #endif // #define SI114X_FUNCTIONS_H

SI114X_CAL_S
SI114X_CAL_S Data Structure.
Definition: si114x_functions.h:54

delay_10ms
void delay_10ms(void)
Implements 10ms delay.
Definition: si1147_i2c.c:267

Si114xPsForce
int16_t Si114xPsForce(HANDLE si114x_handle)
Sends a PSFORCE command to the Si113x/4x.
Definition: si114x_functions.c:205

Si114xNop
int16_t Si114xNop(HANDLE si114x_handle)
Sends a NOP command to the Si113x/4x.
Definition: si114x_functions.c:190

Uncompress
uint16_t Uncompress(uint8_t input)
Converts an 8-bit compressed value to 16-bit.
Definition: si114x_functions.c:557

SI114X_CAL_S::vispd_correction
uint32_t vispd_correction
Definition: si114x_functions.h:56

Si114xParamSet
int16_t Si114xParamSet(HANDLE si114x_handle, uint8_t address, uint8_t value)
Writes a byte to an Si113x/4x Parameter.
Definition: si114x_functions.c:300

Compress
uint8_t Compress(uint16_t input)
Converts a 16-bit value to 8-bit value.
Definition: si114x_functions.c:645

Si114xBlockWrite
int16_t Si114xBlockWrite(HANDLE si114x_handle, uint8_t address, uint8_t length, uint8_t *values)
Writes block of Si114x registers.
Definition: si1147_i2c.c:239

SI114X_CAL_S::ledi_ratio
uint32_t ledi_ratio
Definition: si114x_functions.h:60

SI114X_CAL_S::irsize_ratio
uint32_t irsize_ratio
Definition: si114x_functions.h:59

Si114xWriteToRegister
int16_t Si114xWriteToRegister(HANDLE si114x_handle, uint8_t address, uint8_t value)
Writes to Si114x Register.
Definition: si1147_i2c.c:205

si114x_set_ucoef
int16_t si114x_set_ucoef(HANDLE si114x_handle, uint8_t *input_ucoef, SI114X_CAL_S *si114x_cal)
Initializes the Si113x/46/47/48 UCOEF Registers.
Definition: si114x_functions.c:1470

Si114xAlsForce
int16_t Si114xAlsForce(HANDLE si114x_handle)
Sends an ALSFORCE command to the Si113x/4x.
Definition: si114x_functions.c:220

Si114xParamRead
int16_t Si114xParamRead(HANDLE si114x_handle, uint8_t address)
Reads a Parameter from the Si113x/4x.
Definition: si114x_functions.c:267

SI114X_CAL_S::ucoef_p
uint8_t * ucoef_p
Definition: si114x_functions.h:61

delay_1ms
void delay_1ms(void)
Implements 1ms delay.
Definition: si1147_i2c.c:279

Si114xPsAlsForce
int16_t Si114xPsAlsForce(HANDLE si114x_handle)
Sends a PSALSFORCE command to the Si113x/4x.
Definition: si114x_functions.c:235

si114x_types.h
Si114x types.

Si114xReadFromRegister
int16_t Si114xReadFromRegister(HANDLE si114x_handle, uint8_t address)
Reads from Si114x register.
Definition: si1147_i2c.c:219

SI114X_CAL_S::adcrange_ratio
uint32_t adcrange_ratio
Definition: si114x_functions.h:58

Si114xBlockRead
int16_t Si114xBlockRead(HANDLE si114x_handle, uint8_t address, uint8_t length, uint8_t *values)
Reads block of Si114x registers.
Definition: si1147_i2c.c:258

si114x_get_calibration
int16_t si114x_get_calibration(HANDLE si114x_handle, SI114X_CAL_S *si114x_cal, uint8_t security)
Populates the SI114X_CAL_S structure.
Definition: si114x_functions.c:1330

si114x_handle
static void * si114x_handle
Si114x PGM toolkit functions uses a void* to pass hardware parameters through to the lower level i2c ...
Definition: si114x_uv_index.c:29

Si114xPsAlsAuto
int16_t Si114xPsAlsAuto(HANDLE si114x_handle)
Sends a PSALSAUTO command to the Si113x/4x.
Definition: si114x_functions.c:250

Si114xPauseAll
int16_t Si114xPauseAll(HANDLE si114x_handle)
Pauses autonomous measurements.
Definition: si114x_functions.c:355

Si114xReset
int16_t Si114xReset(HANDLE si114x_handle)
Resets the Si113x/4x, clears any interrupts and initializes the HW_KEY register.
Definition: si114x_functions.c:92

SI114X_CAL_S::irpd_correction
uint32_t irpd_correction
Definition: si114x_functions.h:57