C:/PIC/OpenSSM/extmeter.c

説明を見る。

/**************************************************************************************************
    Title           : External Meter
    Programmer      : Yosuke FURUSAWA.
    Copyright       : Copyright (C) 2010 Yosuke FURUSAWA.
    License         : 4-clause BSD License
    Since           : 2010/06/19

    Filename        : extmeter.c
    Last up date    : 2010/11/21
    Kanji-Code      : Shift-JIS
    TAB Space       : 4
**************************************************************************************************/


/*================================================================================================
ヘッダファイルをインクルード
=================================================================================================*/
#include <p24FJ64GA002.h>

#include "types.h"
#include "ssm.h"
#include "extmeter.h"

#include "libdac.h"


/*=================================================================================================
マクロ定義
=================================================================================================*/


/*=================================================================================================
構造体
=================================================================================================*/


/*=================================================================================================
グローバル変数
=================================================================================================*/
EXTMETER_T extmeter;


/*=================================================================================================
プロトタイプ宣言
=================================================================================================*/


/**************************************************************************************************
初期化
**************************************************************************************************/
void EXTMETER_init(unsigned char target)
{
    extmeter.target = target;

    /* extmeter.mapを 2次元配列にする方法もあるが... */
    switch(target){
    case EXTMETER_SPEED:
        extmeter.map[  0 ] =     0;
        extmeter.map[  1 ] =    12;
        extmeter.map[  2 ] =    24;
        extmeter.map[  3 ] =    36;
        extmeter.map[  4 ] =    48;
        extmeter.map[  5 ] =    60;
        extmeter.map[  6 ] =    72;
        extmeter.map[  7 ] =    84;
        extmeter.map[  8 ] =    96;
        extmeter.map[  9 ] =   108;
        extmeter.map[ 10 ] =   120;
        extmeter.map[ 11 ] =   132;
        extmeter.map[ 12 ] =   144;
        extmeter.map[ 13 ] =   156;
        extmeter.map[ 14 ] =   168;
        extmeter.map[ 15 ] =   180;
        break;

    case EXTMETER_ENGINE:
        extmeter.map[  0 ] =     0;
        extmeter.map[  1 ] =   600;
        extmeter.map[  2 ] =  1200;
        extmeter.map[  3 ] =  2800;
        extmeter.map[  4 ] =  3400;
        extmeter.map[  5 ] =  4000;
        extmeter.map[  6 ] =  4600;
        extmeter.map[  7 ] =  5200;
        extmeter.map[  8 ] =  5800;
        extmeter.map[  9 ] =  6400;
        extmeter.map[ 10 ] =  7000;
        extmeter.map[ 11 ] =  7600;
        extmeter.map[ 12 ] =  8200;
        extmeter.map[ 13 ] =  8800;
        extmeter.map[ 14 ] =  9400;
        extmeter.map[ 15 ] = 10000;
        break;

    case EXTMETER_BOOST:
        extmeter.map[  0 ] = -1.000;
        extmeter.map[  1 ] = -0.900;
        extmeter.map[  2 ] = -0.700;
        extmeter.map[  3 ] = -0.500;
        extmeter.map[  4 ] = -0.300;
        extmeter.map[  5 ] = -0.180;
        extmeter.map[  6 ] = -0.000;
        extmeter.map[  7 ] =  0.200;
        extmeter.map[  8 ] =  0.350;
        extmeter.map[  9 ] =  0.510;
        extmeter.map[ 10 ] =  0.700;
        extmeter.map[ 11 ] =  0.900;
        extmeter.map[ 12 ] =  1.050;
        extmeter.map[ 13 ] =  1.200;
        extmeter.map[ 14 ] =  1.400;
        extmeter.map[ 15 ] =  1.600;
        break;

    case EXTMETER_THROTTLE:
        extmeter.map[  0 ] =     00;
        extmeter.map[  1 ] =   6.60;
        extmeter.map[  2 ] =  13.20;
        extmeter.map[  3 ] =  19.80;
        extmeter.map[  4 ] =  26.40;
        extmeter.map[  5 ] =  33.00;
        extmeter.map[  6 ] =  39.60;
        extmeter.map[  7 ] =  46.20;
        extmeter.map[  8 ] =  52.80;
        extmeter.map[  9 ] =  59.40;
        extmeter.map[ 10 ] =  66.00;
        extmeter.map[ 11 ] =  72.60;
        extmeter.map[ 12 ] =  79.20;
        extmeter.map[ 13 ] =  85.80;
        extmeter.map[ 14 ] =  92.40;
        extmeter.map[ 15 ] = 100.00;
        break;

    case EXTMETER_COOLANT:
    case EXTMETER_INTAKEAIR:
    default:
        extmeter.map[  0 ] =   -40;
        extmeter.map[  1 ] =   -28;
        extmeter.map[  2 ] =   -16;
        extmeter.map[  3 ] =    -4;
        extmeter.map[  4 ] =     8;
        extmeter.map[  5 ] =    20;
        extmeter.map[  6 ] =    32;
        extmeter.map[  7 ] =    44;
        extmeter.map[  8 ] =    56;
        extmeter.map[  9 ] =    68;
        extmeter.map[ 10 ] =    80;
        extmeter.map[ 11 ] =    92;
        extmeter.map[ 12 ] =   104;
        extmeter.map[ 13 ] =   116;
        extmeter.map[ 14 ] =   128;
        extmeter.map[ 15 ] =   140;
        break;
    }

    return;
}


/**************************************************************************************************
メイン

高速化する場合、dataをポインタ変数にして data[ extmeter.target ]で対象を選択すると良いが、
そのあとの forループはポインタ変数にしない方が速いかもしれない？　未確認。
**************************************************************************************************/
BOOL EXTMETER_main(void)
{
    unsigned int i;
    double data;

    /* 出力するデータを選ぶ */
    switch(extmeter.target){
    case EXTMETER_SETTING:      DAC_setvalue(extmeter.setting); return(TRUE);

    case EXTMETER_SPEED:        data = ssm_data.speed;          break;
    case EXTMETER_ENGINE:       data = ssm_data.engine;         break;
    case EXTMETER_BOOST:        data = ssm_data.boost;          break;
    case EXTMETER_THROTTLE:     data = ssm_data.throttle;       break;
    case EXTMETER_COOLANT:      data = ssm_data.coolant;        break;
    case EXTMETER_INTAKEAIR:    data = ssm_data.intakeair;      break;
    default:                                                    break;
    }

    /* マップから出力値を選ぶ */
    for(i = 1; i < EXTMETER_DIV; i++){
        if(extmeter.map[i - 1] <= data && data < extmeter.map[i]){
            DAC_setvalue(((i << 4) & 0xf0) | ((unsigned char)(((data - extmeter.map[i - 1]) / (extmeter.map[i] - extmeter.map[i - 1])) * EXTMETER_DIV) & 0x0f));
        }
    }

    return(TRUE);
}