small_water_meter_4g_src/Users/rtc_isr.c

#include "board.h"
#include "tdc_tof.h"

static rtc_run_t *pRtcRun;
void rtc_init(rtc_run_t *rtc_run)
{
    PeriClk_MutEnable(PeriClk_Rtc);

    M0P_RTC->CR0 = (1<<14) |    // 0:PRDS; 1:PRDX;
    #ifdef RTC_INTERRUPT_TIME_5_S//add by yuewei 20260306
                   (9<< 8) |    // PRDX, 0:0.5s; 1:1s; 2:1.5s .... 63:32S
    #else
                   (1<< 8) |    // PRDX, 0:0.5s; 1:1s; 2:1.5s .... 63:32S
    #endif
                   (0<< 7) |    // start, 0:stop; 1:start;
                   (0<< 6) |    // HZ1SEL, 0:normal; 1:high precision
                   (0<< 5) |    // HZ1OE, 0:disable output 1Hz; 1:enable
                   (1<< 3) |    // AMPM, 0:12-hour; 1:24-hour;
                   (0<< 0);     // PRDS, 0:disable; 1:0.5s; 2:1s; 3:1m; 4:1h; 5:1d; 6:1m;

    M0P_RTC->CR1 = (0<< 8) |    // 0,1:XTL; 2,3:RCL; 4:XTH=4M; 5:XTH=8M; 6:XTH=16M; 7:XTH=32M;
                   (0<< 7) |    // ALMEN, 0:disable alarm function; 1:enable
                   (0<< 6);     // ALMIE, 0:disable alarm interrupt; 1:enable

    pRtcRun = rtc_run;
    M0P_RTC->SEC  = OctToBcd(rtc_run->second);  // BCD
    M0P_RTC->MIN  = OctToBcd(rtc_run->minute);  // BCD
    M0P_RTC->HOUR = OctToBcd(rtc_run->hour);    // BCD
    M0P_RTC->DAY  = OctToBcd(rtc_run->day);     // BCD
    M0P_RTC->WEEK = OctToBcd(rtc_run->week);    // DEC 0~6
    M0P_RTC->MON  = OctToBcd(rtc_run->month);   // BCD
    M0P_RTC->YEAR = OctToBcd(rtc_run->year);    // BCD

    M0P_RTC->CR0_f.START = 1;

    // enable interrupt at NVIC side
    IRQMutEnable(RTC_IRQn, NVIC_PRIO_0);
}

//add by yuewei 20260519 
/**
 * @brief  设置RTC：多少秒钟进入一次中断
 * @param  time:0.5s, 1.0s, 1.5s, 2.0s...
 * @retval 无
 */
void set_rtc_interrupt_time(float time)
{
    uint8_t prdx_val = (uint8_t)(time * 2 - 1);  // 公式：cycle = (prdx_val + 1) * 0.5s

    M0P_RTC->CR0 = (1<<14) |    // 0:PRDS; 1:PRDX;
                   (prdx_val << 8) |    // PRDX, 0:0.5s; 1:1s; 2:1.5s .... 63:32S
                   (1<< 7) |    // start, 0:stop; 1:start;
                   (0<< 6) |    // HZ1SEL, 0:normal; 1:high precision
                   (0<< 5) |    // HZ1OE, 0:disable output 1Hz; 1:enable
                   (1<< 3) |    // AMPM, 0:12-hour; 1:24-hour;
                   (0<< 0);     // PRDS, 0:disable; 1:0.5s; 2:1s; 3:1m; 4:1h; 5:1d; 6:1m;
}

/**********************************************************************
* 函数名：RTC_GetIrqSeconds
* 功能  ：
* 返回  ：
**********************************************************************/
/**
 * @brief  从 RTC->CR0 读取 PRDX 值，返回中断间隔秒数
 * @param  无
 * @retval float 类型，多少秒产生一次中断
 */
float get_rtc_interrupt_time(void)
{
    // 从 CR0 寄存器取出 [13:8] 位的 PRDX 值
    uint8_t prdx_val = (M0P_RTC->CR0 >> 8) & 0x3F;  // 0x3F = 6位掩码
    
    // 按规则计算秒数
    float seconds = (prdx_val + 1) * 0.5f;
    
    return seconds;
}

void update_rtc_run(void)
{
    rtc_run_t *rr = pRtcRun;

    if (rr->second != BcdToOct(M0P_RTC->SEC)) {
        rr->flag_1s = 1;
        rr->second  = BcdToOct(M0P_RTC->SEC);
    }

    if (rr->minute != BcdToOct(M0P_RTC->MIN)) {
        rr->flag_1m = 1;
        rr->minute  = BcdToOct(M0P_RTC->MIN);
    }

    rr->hour  = BcdToOct(M0P_RTC->HOUR);
    rr->day   = BcdToOct(M0P_RTC->DAY);
    rr->month = BcdToOct(M0P_RTC->MON);
    rr->year  = BcdToOct(M0P_RTC->YEAR);
    rr->week  = BcdToOct(M0P_RTC->WEEK);
}

void set_rtc_date(uint8_t year, uint8_t month, uint8_t day) {
    M0P_RTC->YEAR = year;
    M0P_RTC->MON  = month;
    M0P_RTC->DAY  = day;
}

void get_rtc_date(uint8_t *year, uint8_t *month, uint8_t *day) {
    *year  = M0P_RTC->YEAR;
    *month = M0P_RTC->MON;
    *day   = M0P_RTC->DAY;
}

void set_rtc_time(uint8_t hour, uint8_t min, uint8_t sec) {
    M0P_RTC->HOUR = hour;
    M0P_RTC->MIN  = min;
    M0P_RTC->SEC  = sec;
}

void get_rtc_time(uint8_t *hour, uint8_t *min, uint8_t *sec) {
    *hour = M0P_RTC->HOUR;
    *min  = M0P_RTC->MIN;
    *sec  = M0P_RTC->SEC;
}

uint32_t RTC_CntInt;
uint32_t get_rtc_cnt_int(void) {
    return RTC_CntInt;
}

void set_rtc_cnt_int(uint32_t cnt_int) {
    RTC_CntInt = cnt_int;
}

static uint32_t TdcRwErrCnt = 0;
uint32_t get_tdc_rw_err_cnt(void) {
    return TdcRwErrCnt;
}

uint32_t GetChIdx(uint32_t cnt) {
    if (pTdcItf->ch_num == 1) {
        return 0;
    } else if (pTdcItf->ch_num == 2) {
        return (cnt & 0x00000001);
    } else if (pTdcItf->ch_num == 4) {
        return (cnt & 0x00000003);
    }

    return 0;
}

static uint32_t MUX_SwitchInt = 0;

void RTC_IRQHandler(void)
{

    uint32_t ISR;
    
    ISR = M0P_RTC->CR1;
    M0P_RTC->CR1 = ISR & (~0x18u);

		//if(NB_RUN_UPDATE_FLAG == 1)return; //2026-4-8 wuxiaolin
		//add by yuewei 20260309 to deal hongwai long data
    if(HONGWAI_LONG_RX_FLAG == 1)return;
		//LOG("---------------------------------0\n");

		//return;
		//us_delay(2000);//!!!!!do not modify!!!!!
		//rt_thread_delay(5);//!!!!!do not modify!!!!!
	
	//  get_internal_time();
    if (ISR & 0x08u)
    {
			rt_sem_release(&rtc_isr_sem);
    }
}

void rtc_interrupt_deal_tdc(void)
{
	uint32_t Tu32;
	
        update_rtc_run();
        if (tof_state&(TOF_ST_METER | TOF_ST_CALIB | TOF_ST_VOID))
        {
            if (pTdcItf->mux_switch && ((RTC_CntInt & 0x00000001u) == 0) && pTdcItf->ch_num > 1)
            {
                uint32_t idx = GetChIdx(MUX_SwitchInt);
                set_mux_ch(pTdcItf->mux_ch_no[idx]);
                MUX_SwitchInt++;
                us_delay(50);
            }
            //LOG("---------------------------------1\n");
            RTC_CntInt++;
        }

        if (pTdcItf->blank_flag == pTdcItf->ch_bit_map)
        {
            if (tof_state&TOF_ST_METER)
            {
                tof_state = TOF_ST_VOID;
            }
        }
        else
        {
            if (tof_state&TOF_ST_VOID)
            {
                tof_state = TOF_ST_METER;
            }
        }

        if ((tof_state&(TOF_ST_METER|TOF_ST_CALIB)) || (tof_state&TOF_ST_VOID))
        {
            tof_flag &= ~TOF_FLAG_BLANK_PIPE;
            if (TdcIntStep!=0xFFu)
            {
                tof_flag |= TOF_FLAG_TDC_FAULT;
            }

            TdcIntStep = 0;
            Tu32 = (RTC_CntInt&0x00000001u) ? TDC_CFG_FIRE_DOWN : TDC_CFG_FIRE_UP;
            tdc_start_tof(TDC_CFG_DO_CKENA | TDC_CFG_DO_CKDIS | TDC_CFG_DO_WREG | Tu32);
						
						
            //LOG("---------------------------------2\n");
        }
}