void rhpt(void)//RHP温度处理部分
{
    if(rapid_tm<htm1)
    {
        if(recoff==0)
        {
            pvx=pv*coffi/rh_co[rapid_tm];
            if(pvx>degree_C)
            {
                delayst=1;//lcd延时变绿标志，2处于RHP但未启动延时，1启动延时，0未启动
                                //RGLed_R;//打开红色背景灯
                                //lcdbg=0;
                pvx=pv*coffi/h_cof2;//更新温度系数
                recoff=1;
            }
        }
        else if(recoff==1)
        {
                pvx=pv*coffi/h_cof2;//更新温度系数
        }
    }
    else if((rapid_tm>=htm1)&&(rapid_tm<htm2))
    {
        pvx=pv*coffi/rh_co[rapid_tm];
    }
    else if(rapid_tm>=htm2)
    {
        delayst=0;//lcd延时变绿标志，2处于RHP但未启动延时，1启动延时，0未启动
        pvx=pv*coffi/rh_co[rapid_tm];
    }
}

void rhpdeal(void)//rapid heatup process计时程序
{
    if(rhs==1)
    {
        if(++sectm>sec_c)
        {
            sectm=0;
            if(delayst==1)
            {
                if(++lcddelaytm>lcddelay_c)
                {
                    lcddelaytm=0;
                    delayst=0;//lcd延时结束
                             bicken=0;//停止闪烁
                             RGLed_G;//打开绿色背景灯
                             lcdbg=1;
                }
            }
            if(++mintm>min_c)
            {
                mintm=0;
                if(++rapid_tm>maxt_c)
                {
                    rapid_tm=0;
                    rhs=0;//rapid heatup process结束
                }
            }
        }
    }
}

你把程序读懂了，流程图就出来了