PIXCIR

技术2025-04-22 22

/*******************************************//* PIXCIR AG, Switzerland *//*******************************************/

//#include "compilation_definitions.h"

/*** Compiler options ***/

//#define AVR_gcc // ATMEL#define NC30 // RENESAS

/*** protocol option ***/

#define PIXCIR_I2C//#define AUO_I2C#define BUTTONS#define F48

//// Max number of electrodes//

#ifdef F48

#define XMAX 48 #define YMAX 48 #else // F32 or S32

#define XMAX 32 #define YMAX 32

#endif

//// EEPROM allocation//

typedef struct{ unsigned char table[XMAX];

#ifdef NC30

int nbr; unsigned int reserved;

#else // AVR_gcc

int offset[32];

#endif

#ifdef F48

unsigned int stamp[6]; #else // F32 or S32

unsigned int stamp[4];

#endif unsigned char sensitivity[XMAX]; unsigned int setup; unsigned char thr;}electrode_t;

typedef struct{ unsigned char M0_spi; unsigned char M1_spi; unsigned char scan_en; unsigned char version[4]; int X_res; int Y_res; unsigned char move_thr; unsigned char ghost_thr; unsigned char fast; unsigned char special_borders; unsigned char Z_thr; unsigned char power_mode; unsigned char INT_mode; unsigned char INT_width; unsigned char drift_comp; unsigned char subversion; unsigned char noise_thr; unsigned char noise_delay; unsigned char noise_mode; #ifdef NC30

unsigned char I2C_timeout; unsigned char I2C_timeout_period; unsigned char interval; //!!!!!!!!!!!!!!!!!!!!!!! BYTE ADDED !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

unsigned char extra_offset;

//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! unsigned char extra_offset_flag; signed char extra_offset_out[4]; signed char extra_offset_in[4]; unsigned char raw1_delta_offset; unsigned char raw2_delta_offset; unsigned char M1_calibr;

#ifdef BUTTONS

unsigned char button_scan; unsigned char button_axis; int button_setup_command; unsigned char button_nbr; unsigned char button_spi_speed; unsigned char button_thr_press; unsigned char button_thr_release;

#ifdef F48

unsigned char custom[201]; #else // F32 or S32

unsigned char custom[273];

#endif

#else // NO BUTTONS

#ifdef F48

unsigned char custom[209]; #else // F32 or S32

unsigned char custom[281];

#endif

#else // AVR_gcc

// int offset_M1[30];// signed char border_M1_Y[13][2]; signed char border_M1_X[20][6]; unsigned char I2C_timeout; // I2C time-out disabled if 0, enabled if 1 or 2 unsigned char I2C_timeout_period; // I2C time-out period = (I2C_timeout_period * 8.192) ms unsigned char interval; unsigned char extra_offset_flag; signed char extra_offset_out[4]; signed char extra_offset_in[4]; unsigned char raw1_delta_offset; unsigned char raw2_delta_offset;// unsigned char M1_calibr;

#ifdef BUTTONS

unsigned char custom[35];

#else

unsigned char custom[43];

#endif

unsigned char bootlock; // #511 from start of eeprom structure (pinmap)}ee_options_t;

typedef struct { char disto[32]; electrode_t x; electrode_t y; ee_options_t options;}eeprom_t;

#ifdef NC30

/// ME0 offsets are stored in data Flash Block B/

#define offset_x 0x3400#define offset_y (offset_x + ((XMAX-1)*2))

/*typedef struct{ int x[31]; int y[31];}offset_t;*/

/// ME1 offsets are stored in data Flash Block C/

#define offset_M1 0x3800

#endif

//// RAM allocation//

/****************************************************************************************************************************//************************************* AUO I2C protocol *************************************************//****************************************************************************************************************************/

#ifdef AUO_I2C

#define WAKE_UP_BUFFER_SIZE 16

typedef struct { int posx; // 1st finger int posy;

int posx2; // 2nd finger int posy2;}shadow_t;

typedef struct { // // READ ONLY MEMBERS // // PIXCIR_algorithm () will write to these members //

int posx; // 1st finger position int posy;

int posx2; // 2nd finger position int posy2; // int reserved_1[6]; // Customer reserved space

/* int raw1; // Customer reserved space used as debug variables int raw2; int raw3; int raw4; int raw5; int raw6;*/

// address +8 unsigned char cross_enable; // Customer reserved space used as crossnode function variables unsigned char cross_x; unsigned char cross_y; int crossing;

// address +13 unsigned char internal_enable; // Customer reserved space used as internal algorithm check variables int x_signal; int y_signal; // address +18 unsigned char noise_mode; unsigned char noise_level;// unsigned char reserved_1[2]; // Customer reserved space

unsigned char X1_W; // Touch areas of each coordinates unsigned char Y1_W; unsigned char X2_W; unsigned char Y2_W;

// address +24 int initial_distance; int distance; int ratio;// unsigned char reserved_2[6]; // Customer reserved space

unsigned char X1_Z; // Finger to panel distance of each coordinates unsigned char Y1_Z; unsigned char X2_Z; unsigned char Y2_Z;

// address +34// unsigned char synch; // Synchronization on LCM Vcom signal// unsigned char reserved_3[8];

// int stack_count; // Monitors the remaining space between the top of the stack and the bottom of global data section// unsigned char reserved_3[7];

unsigned char reserved_3[9]; // Customer reserved space

// // AUO PARAMETERS // // PIXCIR_algorithm () will read from or write to // these members at each iteration. // int xy_raw1[31]; // AUO channels, first part

unsigned char reserved_4; // address +106 unsigned char subversion;

unsigned char reserved_5[4]; // Customer reserved space

unsigned char xthr; // Threshold for X axis (low => more sensitive) unsigned char ythr; // same for Y electrodes

unsigned char INT_mode; // Interrupt mode

unsigned char INT_width; // Interrupt pulse width

unsigned char power_mode; // Power mode

unsigned char version[4]; // Firmware version // address +120 unsigned char specop; // Special operation (addr +120 from beginning of RAM table) unsigned int EEPROM_read_addr; // Start address of the EEPROM read operation

// address +123 unsigned int crc; // CRC checksum of whole program memory

unsigned char reserved_6[3]; // Customer reserved space

// address +128 int xy_raw2[31]; // AUO channels, second part

// address +190 unsigned char interval;

unsigned char buffer_level;

int buffer[2*WAKE_UP_BUFFER_SIZE];

// // PIXCIR PARAMETERS // // PIXCIR_algorithm () will read from or write to // these members at each iteration. //

// address +256 unsigned char M0_spi; // Method 0 Sensing speed (SPI data rate) // high nibble for X, low nibble for Y // high/low pulse width = ((3*k)+2)/8 us // 2 -> SPI CLK = 500 kHz // 5 -> SPI CLK = 235 kHz // A -> SPI CLK = 125 kHz // F -> SPI CLK = 85 kHz

unsigned char M1_spi; // Method 1 Sensing speed (SPI data rate) // high/low pulse width = ((3*k)+2)/8 us // 2 -> SPI CLK = 500 kHz // 5 -> SPI CLK = 235 kHz // A -> SPI CLK = 125 kHz // F -> SPI CLK = 85 kHz

unsigned int strength; // Signal strength estimation unsigned char touching; // Number of fingers on the panel unsigned char old_touching; // Previous scan number of fingers on the panel unsigned char offset; // Autozero from EEPROM is done if cleared

int xxraw[XMAX-1+2]; // PIXCIR X raw data

int yyraw[YMAX-1+2]; // PIXCIR Y raw data

#ifdef AVR_gcc

} __attribute__((packed))position_t;

#else

}position_t;

#endif

/****************************************************************************************************************************//************************************* PIXCIR I2C protocol *************************************************//****************************************************************************************************************************/

#ifdef PIXCIR_I2C

#ifdef NC30

#define WAKE_UP_BUFFER_SIZE 16

#else // AVR_gcc

#define WAKE_UP_BUFFER_SIZE 8

#endif

typedef struct { unsigned char touching; // Number of fingers on the panel unsigned char old_touching; // Previous scan number of fingers on the panel

int posx; // 1st finger int posy;

int posx2; // 2nd finger int posy2;

unsigned char X1_W; // Touch areas of each coordinates unsigned char Y1_W; unsigned char X2_W; unsigned char Y2_W;

unsigned char X1_Z; // Finger to panel distance of each coordinates unsigned char Y1_Z; unsigned char X2_Z; unsigned char Y2_Z;}shadow_t;

typedef struct{// ----------------------------------------------------------------------------------------------// Shadow protected// ----------------------------------------------------------------------------------------------

unsigned char touching; // Number of fingers on the panel unsigned char old_touching; // Previous scan number of fingers on the panel

int posx; // 1st finger position int posy; int posx2; // 2nd finger position int posy2; unsigned char X1_W; // Touch areas of each coordinates unsigned char Y1_W; unsigned char X2_W; unsigned char Y2_W;

unsigned char X1_Z; // Finger to panel distance of each coordinates unsigned char Y1_Z; unsigned char X2_Z; unsigned char Y2_Z;

// ----------------------------------------------------------------------------------------------// End of shadow protection// ----------------------------------------------------------------------------------------------

unsigned int strength; // Signal strength estimation

unsigned char power_mode; // Power mode unsigned char INT_mode; // Interrupt mode unsigned char INT_width; // Interrupt pulse width

unsigned char noise_mode; unsigned char noise_thr; unsigned char noise_level;

#ifdef BUTTONS

char reserved_1[15];

// address +41 char button_flags;

#else

char reserved_1[16];

// char reserved_1[14];

// address +40// int stack_count; // Monitors the remaining space between the max top of the stack and the bottom of global data section

#endif

// address +42 int initial_distance; int distance; int ratio;

unsigned char version[4]; // Firmware version unsigned char subversion; unsigned int crc; // CRC checksum of whole program memory

unsigned char specop; // Special operation unsigned int EEPROM_read_addr; // Start address of the EEPROM read operation

unsigned char xthr; // Threshold for X axis. Low => more sensible unsigned char ythr; // same for Y electrodes

unsigned char synch; // Synchronization on LCM Vcom signal

// ----------------------------------------------------------------------------------------------// PRIVILEGE 1 (necessary for production testing)// ----------------------------------------------------------------------------------------------

#ifdef F48

int xy_raw1[XMAX-1]; // Customer channels, first part int xy_raw2[XMAX-1]; // Customer channels, second part. Used for buttons RAW

#else

int xy_raw1[32]; // Customer channels, first part int xy_raw2[32]; // Customer channels, second part. Used for buttons RAW #endif

unsigned char cross_enable; // crossnode function variables unsigned char cross_x; unsigned char cross_y; int crossing;

unsigned char internal_enable; // internal algorithm check variables int x_signal; int y_signal;

unsigned char interval; // Wake-up buffer variables unsigned char buffer_level; int buffer[2*WAKE_UP_BUFFER_SIZE];

// ----------------------------------------------------------------------------------------------// PRIVILEGE 2 (Private to PIXCIR)// ----------------------------------------------------------------------------------------------

unsigned char offset; // Autozero from EEPROM is done if cleared

unsigned char M0_spi; // Method 0 Sensing speed (SPI data rate) // high nibble for X, low nibble for Y // high/low pulse width = ((3*k)+2)/8 us // 2 -> SPI CLK = 500 kHz // 5 -> SPI CLK = 235 kHz // A -> SPI CLK = 125 kHz // F -> SPI CLK = 85 kHz

int xxraw[XMAX-1+2]; // PIXCIR X raw data int yyraw[YMAX-1+2]; // PIXCIR Y raw data

#ifdef BUTTONS

int button_raw_max[8];

#endif

#ifdef AVR_gcc

} __attribute__((packed))position_t;

#else

}position_t;

#endif

/****************************************************************************************************************************//***************************** drift compensation filter structure *****************************************//****************************************************************************************************************************/

typedef struct{ long filter_content[4]; int real_previous_raw[4];}calib_s;

/****************************************************************************************************************************//************************************* functions headers *************************************************//****************************************************************************************************************************/

char PIXCIR_algorithm (void);

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