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/************************************** * c4017_matrix module * **************************************/ /*****************description****************** * This is a simple module that enables the * * user to make and control a led matrix * * with size varies from (8x8) to (8x64). * * The module is prefered to run at 20 MHZ * * pic microcontroller or 8MHZ AVR(Atmega) * * microcontrollers * **********************************************/ /*******************About*********************** * Module: * * c4017_matrix * * Author: * * Ahmed Abd Elazeem Eltabakh * * ***********************************************/ /*****************Preprocessor******************/ /************************* * header files * *************************/ #include "dio.h" /*************************/ #define PORT_LENGTH 8 #define INITIAL_VALUE 0 #define INVERTED 1 #define NONINVERTED 0 #define SPACE 0xff #define ADDRESS_SHIFT 0 #define LEFT_TO_RIGHT 0 #define RIGHT_TO_LEFT 1 #define UP 1 #define DOWN 0 #define CUL_NUMBER 64 /**********************MACROS*********************/ #define CLOCK_PULSE dio_set_bit(matrix.clock_port,matrix.clock_bit);di o_clear_bit(matrix.clock_port,matrix.clock_bit) #define usart_send(data) while(!(TXSTA&(1<<TRMT)));TXSTA|=1<<TXEN;TXREG=dat a; /****************Api Prototype******************/ void c4017_matrix_init(unsigned char data_port,unsigned char scan_port,unsigned char number_of_blocks,unsigned char clock_port,unsigned char clock_bin); void c4017_matrix_print_const_text(const unsigned char message[],unsigned char speed,unsigned char on_delay,unsigned char off_delay); void c4017_matrix_print_text( unsigned char message[],unsigned char speed,unsigned char on_delay,unsigned char off_delay); void c4017_matrix_print_image(const unsigned char *image_name,int image_size,unsigned char speed,unsigned char on_delay,unsigned char off_delay); void c4017_matrix_enable(unsigned char address); void c4017_matrix_print_variable(unsigned char variable,unsigned char position); void clear_buffer(void); void delay(unsigned char delay_value); /*********************************************/ /************************ * global variable * ************************/ struct mat { unsigned char data_port; unsigned char address_port; unsigned char number_of_matrix_blocks; unsigned char clock_port; unsigned char clock_bit; unsigned char cul_number; } matrix; unsigned char buffer_array[CUL_NUMBER]; extern const unsigned char char_map[]; extern const unsigned char numbers_map[50]; /********************************************/ /************************************************** ******************************* * Function name: * * c4017_matrix_init * * Function Descrption: * * This function is used to initialize the microcontroller ports * * to initialize the matrix * * Function Input: * * unsigned char data_port the port which the data will be * * send to the matrix * * unsigned char scan_port the port which will control the * * counter 4017 chips * * unsigned char number_of_blocks * * number of blocks forms the matrix * * the block is 8x8 ,Example * * if you want to make 8x32 * * then number_of_blocks=4 * * unsigned char clock_port The port contains the bin connected* * to the clk bin (bin 14) in the * * 4017 chips * * unsigned char clock_bin The number of bin connected to clk * * bin in the 4017 chips * * * * Function Out: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void c4017_matrix_init(unsigned char data_port,unsigned char scan_port,unsigned char number_of_blocks,unsigned char clock_port,unsigned char clock_bin) { unsigned char output_bits=INITIAL_VALUE; matrix.data_port=data_port; matrix.address_port=scan_port; matrix.number_of_matrix_blocks = number_of_blocks; matrix.clock_port=clock_port; matrix.clock_bit=clock_bin; matrix.cul_number=matrix.number_of_matrix_blocks<< 3; output_bits=INITIAL_VALUE; dio_init_bit_output(matrix.clock_port,matrix.clock _bit); while(output_bits<PORT_LENGTH) { dio_init_bit_output(matrix.data_port,output_bits); dio_init_bit_output(matrix.address_port,output_bit s); output_bits++; } } /************************************************** */ /************************************************** ******************************* * Function name: * * c4017_matrix_enable * * Function Descrption: * * This function is used to activate the bin with the input value * * but the addresses should be in sequence * * Example (1,2,3,4,5,6,..........) * * but (2,8,4,6,7,3,6,........)(Random sequence) not Allowed * * Function Input: * * unsigned char address The address you want to activate * * * * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void c4017_matrix_enable(unsigned char address) { address>>=3; dio_set_port(matrix.address_port,~(1<<address)); CLOCK_PULSE; } /************************************************** ******/ /************************************************** ******************************* * Function name: * * c4017_matrix_print_image * * Function Descrption: * * This function is used to print the any constant image (array) * * Function Input: * * const unsigned char *image_name pointer to the array name * * * * int image_size size of the array * * unsigned char speed speed of scan (number of show * * times before shift the bits) * * * * unsigned char on_delay delay in instruction cycle used * * to make the column leds on * * unsigned char off_delay delay in instruction cycle used * * to turn the columns leds off * * before activating the next * * column to avoid duplication * * and shadow * * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void c4017_matrix_print_image(const unsigned char *image_name,int image_size,unsigned char speed,unsigned char on_delay,unsigned char off_delay) { unsigned char shift_index=INITIAL_VALUE; unsigned char show_index=INITIAL_VALUE; unsigned char show_speed=INITIAL_VALUE; unsigned int image_pixel=INITIAL_VALUE; clear_buffer(); for(image_pixel=INITIAL_VALUE;image_pixel<image_si ze+matrix.cul_number;image_pixel++) { show_speed=INITIAL_VALUE; while(show_speed<=speed) { shift_index=INITIAL_VALUE; while(shift_index<matrix.cul_number) { dio_set_port(matrix.data_port,SPACE); delay(off_delay); c4017_matrix_enable(shift_index); dio_set_port(matrix.data_port,buffer_array[shift_index]); delay(on_delay); if(show_speed==speed&&shift_index<=matrix.cul_numb er-2) { buffer_array[matrix.cul_number-1-shift_index]= buffer_array[matrix.cul_number-2-shift_index] ; } shift_index++; } show_speed++; } if(image_pixel<image_size) buffer_array[0]=~image_name[image_size-1-image_pixel]; else { buffer_array[0]=SPACE; } } } /************************************************** ***/ /************************************************** ******************************* * Function name: * * c4017_matrix_print_const_text * * Function Descrption: * * This function is used to print the any constant array of characters* * (string) * * Function Input: * * const unsigned char message[] the name of the characters array* * * * unsigned char speed speed of scan (number of show * * times before shift the bits) * * * * unsigned char on_delay delay in instruction cycle used * * to make the column leds on * * unsigned char off_delay delay in instruction cycle used * * to turn the columns leds off * * before activating the next * * column to avoid duplication * * and shadow * * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void c4017_matrix_print_const_text(const unsigned char message[],unsigned char speed,unsigned char on_delay,unsigned char off_delay) { unsigned char shift_index=INITIAL_VALUE; unsigned char show_index=INITIAL_VALUE; unsigned char show_speed=INITIAL_VALUE; unsigned char number_of_message_char=INITIAL_VALUE; unsigned char printed_char=INITIAL_VALUE; unsigned int current_position=INITIAL_VALUE,final_value=INITIAL _VALUE; clear_buffer(); while(message[number_of_message_char++]); number_of_message_char--;//count number of characters for(;printed_char<number_of_message_char;printed_c har++) { current_position=message[printed_char]-32; current_position*=6; final_value=current_position+6; for(;current_position<final_value;current_position ++) { show_speed=INITIAL_VALUE; while(show_speed++<=speed) { for(shift_index=INITIAL_VALUE;shift_index<matrix.c ul_number;shift_index++) { delay(off_delay); c4017_matrix_enable(shift_index); dio_set_port(matrix.data_port,buffer_array[shift_index]); delay(on_delay); //shift at the last time of show if(show_speed==speed&&shift_index!=matrix.cul_numb er-1) { buffer_array[shift_index] = buffer_array[shift_index+1] ; } else if(show_speed==speed&&shift_index==matrix.cul_numb er-1) buffer_array[matrix.cul_number-1]=SPACE; dio_set_port(matrix.data_port,SPACE); } } buffer_array[matrix.cul_number-1]=~char_map[current_position]; } } //shift to make the space for(printed_char=0;printed_char<matrix.cul_number; printed_char++) { show_speed=INITIAL_VALUE; while(show_speed++<=speed) { for(shift_index=INITIAL_VALUE;shift_index<matrix.c ul_number;shift_index++) { delay(off_delay); c4017_matrix_enable(shift_index); dio_set_port(matrix.data_port,buffer_array[shift_index]); delay(on_delay); if(show_speed==speed&&shift_index!=matrix.cul_numb er-1) { buffer_array[shift_index] = buffer_array[shift_index+1] ; } else if(show_speed==speed&&shift_index==matrix.cul_numb er-1) buffer_array[matrix.cul_number-1]=SPACE; dio_set_port(matrix.data_port,SPACE); } } } } /************************************************** ****/ /************************************************** ******************************* * Function name: * * c4017_matrix_print_text * * Function Descrption: * * This function is used to print the any array of characters * * (string) * * Function Input: * * unsigned char message[] the name of the characters array* * * * unsigned char speed speed of scan (number of show * * times before shift the bits) * * * * unsigned char on_delay delay in instruction cycle used * * to make the column leds on * * unsigned char off_delay delay in instruction cycle used * * to turn the columns leds off * * before activating the next * * column to avoid duplication * * and shadow * * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void c4017_matrix_print_text(unsigned char message[],unsigned char speed,unsigned char on_delay,unsigned char off_delay) { unsigned char shift_index=INITIAL_VALUE; unsigned char show_index=INITIAL_VALUE; unsigned char show_speed=INITIAL_VALUE; unsigned char number_of_message_char=INITIAL_VALUE; unsigned char printed_char=INITIAL_VALUE; unsigned int current_position=INITIAL_VALUE,final_value=INITIAL _VALUE; clear_buffer(); while(message[number_of_message_char++]); number_of_message_char--;//count number of characters for(;printed_char<number_of_message_char;printed_c har++) { current_position=message[printed_char]-32; current_position*=6; final_value=current_position+6; for(;current_position<final_value;current_position ++) { show_speed=INITIAL_VALUE; while(show_speed++<=speed) { for(shift_index=INITIAL_VALUE;shift_index<matrix.c ul_number;shift_index++) { delay(off_delay); c4017_matrix_enable(shift_index); dio_set_port(matrix.data_port,buffer_array[shift_index]); delay(on_delay); //shift at the last time of show if(show_speed==speed&&shift_index!=matrix.cul_numb er-1) { buffer_array[shift_index] = buffer_array[shift_index+1] ; } else if(show_speed==speed&&shift_index==matrix.cul_numb er-1) buffer_array[matrix.cul_number-1]=SPACE; dio_set_port(matrix.data_port,SPACE); } } buffer_array[matrix.cul_number-1]=~char_map[current_position]; } } //shift to make the space for(printed_char=0;printed_char<matrix.cul_number; printed_char++) { show_speed=INITIAL_VALUE; while(show_speed++<=speed) { for(shift_index=INITIAL_VALUE;shift_index<matrix.c ul_number;shift_index++) { delay(off_delay); c4017_matrix_enable(shift_index); dio_set_port(matrix.data_port,buffer_array[shift_index]); delay(on_delay); if(show_speed==speed&&shift_index!=matrix.cul_numb er-1) { buffer_array[shift_index] = buffer_array[shift_index+1] ; } else if(show_speed==speed&&shift_index==matrix.cul_numb er-1) buffer_array[matrix.cul_number-1]=SPACE; dio_set_port(matrix.data_port,SPACE); } } } } /************************************************** ********/ /************************************************** ******************************* * Function name: * * clear_buffer * * Function Descrption: * * This function is used to clear the buffer array * * Function Input: * * void * * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void clear_buffer() { unsigned char buffer=INITIAL_VALUE; while(buffer<matrix.cul_number) { buffer_array[buffer++]=SPACE; } } /************************************************** **********/ /************************************************** ******************************* * Function name: * * delay * * Function Descrption: * * This function is used to generate delay * * Function Input: * * unsigned char delay_value * * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void delay(unsigned char delay_value) { volatile unsigned char delay_u; for(delay_u=0;delay_u++<delay_value  asm{nop};} /************************************************** ***********/ /************************************************** ******************************* * Function name: * * c4017_matrix_print_variable * * * Function Descrption: * * This function print numbers * * Function Input: * * unsigned char variable the number from(0)to(9) * * unsigned char position the position of the the number* * Function Output: * * Void * * Created By: * * Ahmed Eltabakh * ************************************************** *******************************/ void c4017_matrix_print_variable(unsigned char variable,unsigned char position) { unsigned char temp_value=INITIAL_VALUE; c4017_matrix_enable(matrix.cul_number); position<<=3; variable*=5; temp_value=variable+5; dio_set_port(matrix.data_port,SPACE); c4017_matrix_enable(position++); delay(150); while(variable<temp_value) { dio_set_port(matrix.data_port,SPACE); dio_set_port(matrix.data_port,~numbers_map[variable++]); c4017_matrix_enable(position++); delay(150); } } /************************************************/ |
