【IC紹介】7セグメントドライバー TC4511BP の使い方を紹介する

/*
 * File:   interrupt.c
 * Author: ICE__MEGANE
 * Mid-Range 8-bit MCUs PIC16F1827
 * Created on 2024/03/27, 23:38
 */

/* PIC16F1827 Configuration Bit Settings */
/* 'C' source line config statements */

/* CONFIG1 */
#pragma config FOSC = INTOSC    // Oscillator Selection (INTOSC oscillator: I/O function on CLKIN pin)
#pragma config WDTE = OFF       // Watchdog Timer Enable (WDT disabled)
#pragma config PWRTE = OFF      // Power-up Timer Enable (PWRT disabled)
#pragma config MCLRE = ON       // MCLR Pin Function Select (MCLR/VPP pin function is MCLR)
#pragma config CP = OFF         // Flash Program Memory Code Protection (Program memory code protection is disabled)
#pragma config CPD = OFF        // Data Memory Code Protection (Data memory code protection is disabled)
#pragma config BOREN = OFF      // Brown-out Reset Enable (Brown-out Reset disabled)
#pragma config CLKOUTEN = OFF   // Clock Out Enable (CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin)
#pragma config IESO = ON        // Internal/External Switchover (Internal/External Switchover mode is enabled)
#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is disabled)

/* CONFIG2 */
#pragma config WRT = OFF        // Flash Memory Self-Write Protection (Write protection off)
#pragma config PLLEN = ON       // PLL Enable (4x PLL enabled)
#pragma config STVREN = ON      // Stack Overflow/Underflow Reset Enable (Stack Overflow or Underflow will cause a Reset)
#pragma config BORV = LO        // Brown-out Reset Voltage Selection (Brown-out Reset Voltage (Vbor), low trip point selected.)
#pragma config LVP = ON         // Low-Voltage Programming Enable (Low-voltage programming enabled)

/* #pragma config statements should precede project file includes. */
/* Use project enums instead of #define for ON and OFF. */


#include <xc.h>

/* ========================== Macro define =========================== */
#define     SET     1
#define     CLEAR   0

#define _XTAL_FREQ  32000000     /* 32MHz */


typedef unsigned char UCHAR;
typedef unsigned short USHORT;


/* ============= TRISA bit-field type definition =========================== */
/* The PORTA bit field definitions are also available in the standard header,*/
/* but as soon as they are used, the port state changes, so they are provided as buffers. */
typedef union
{
    UCHAR PORTA_ALL_1BYTE;           /* 1byte */

    struct
    {
        /* Memory sharing with "TRISA_USER". */
        UCHAR BIT_RA0 : 1;      /* 0 */     /* The 1st element defined is the LSB */
        UCHAR BIT_RA1 : 1;      /* 1 */
        UCHAR BIT_RA2 : 1;      /* 2 */
        UCHAR BIT_RA3 : 1;      /* 3 */

        UCHAR BIT_RA4 : 1;      /* 4 */
        UCHAR BIT_RA5 : 1;      /* 5 */
        UCHAR BIT_RA6 : 1;      /* 6 */
        UCHAR BIT_RA7 : 1;      /* 7 */
    };
}PORTA_USER_BF_t;

PORTA_USER_BF_t PORTA_USER_BF;


/* ========================== Function Prototype== =========================== */
static void main_init( void );
static void tc4511bp_data_set( UCHAR disp_num );


/**************************************************************/
/*  Function:                                                 */
/*  main task                                                 */
/*                                                            */
/**************************************************************/
void main(void) {

    main_init();                /* initialize before loop task. */

    while(1)
    {
        tc4511bp_data_set(9);
    }

}

/**************************************************************/
/*  Function:                                                 */
/*  variable initialize                                       */
/*                                                            */
/**************************************************************/
static void main_init(void)
{
    /* functional initialize */
    INTCON      =  0x00;
    OSCCON      =  0xF0;
    OSCTUNE     =  0x00;
    OPTION_REG  =  0xC7;    
    APFCON0     =  0x08;
    APFCON1     =  0x00;

    /* port initialize */
    TRISA = 0x00;
    PORTA_USER_BF.PORTA_ALL_1BYTE = 0x00;
}

/**************************************************************/
/*  Function:                                                 */
/*  7seg data exchange                                        */
/*                                                            */
/**************************************************************/
static void tc4511bp_data_set( const UCHAR disp_num )
{

    /* ==== BCD bit check ==== */
    if( ( disp_num & (UCHAR)0x01 ) == (UCHAR)0x01 )
    {
        PORTA_USER_BF.BIT_RA6 = SET;
    }

    if( ( disp_num & (UCHAR)0x02 ) == (UCHAR)0x02 )
    {
        PORTA_USER_BF.BIT_RA7 = SET;
    }

    //disp_num_buff = disp_num;
    if( ( disp_num & (UCHAR)0x04 ) == (UCHAR)0x04 )
    {
        PORTA_USER_BF.BIT_RA0 = SET;
    }

    //disp_num_buff = disp_num;
    if( ( disp_num & (UCHAR)0x08 ) == (UCHAR)0x08 )
    {
        PORTA_USER_BF.BIT_RA1 = SET;
    }

    /* ==== port setup ==== */
    PORTA = PORTA_USER_BF.PORTA_ALL_1BYTE;
}

tc4511bp_data_set(9);

typedef union
{
    UCHAR PORTA_ALL_1BYTE;           /* 1byte */

    struct
    {
        /* Memory sharing with "TRISA_USER". */
        UCHAR BIT_RA0 : 1;      /* 0 */     /* The 1st element defined is the LSB */
        UCHAR BIT_RA1 : 1;      /* 1 */
        UCHAR BIT_RA2 : 1;      /* 2 */
        UCHAR BIT_RA3 : 1;      /* 3 */

        UCHAR BIT_RA4 : 1;      /* 4 */
        UCHAR BIT_RA5 : 1;      /* 5 */
        UCHAR BIT_RA6 : 1;      /* 6 */
        UCHAR BIT_RA7 : 1;      /* 7 */
    };
}PORTA_USER_BF_t;

tc4511bp_data_set(0);
/*                ↑：0 ~ 9 を入力*/