QDAC-firmware/libraries/zf_driver/zf_driver_delay.c

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 * <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>          zf_driver_delay
 * <EFBFBD><EFBFBD>˾<EFBFBD><EFBFBD><EFBFBD><EFBFBD>          <EFBFBD>ɶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɿƼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹<EFBFBD>˾
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 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>          MounRiver Studio V1.8.1
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ̨          CH32V307VCT6
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 * <EFBFBD>޸ļ<EFBFBD>¼
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>                                      <EFBFBD><EFBFBD><EFBFBD><EFBFBD>                             <EFBFBD><EFBFBD>ע
 * 2022-09-15        <EFBFBD><EFBFBD> W            first version
 ********************************************************************************************************************/

#include "ch32v30x.h"

#include "zf_common_clock.h"

#include "zf_driver_delay.h"

//-------------------------------------------------------------------------------------------------------------------
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>     system <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> ms <20><><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     time            <20><>Ҫ<EFBFBD><D2AA>ʱ<EFBFBD><CAB1>ʱ<EFBFBD><CAB1> ms <20><><EFBFBD><EFBFBD>
// <20><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD>     void
// ʹ<><CAB9>ʾ<EFBFBD><CABE>     system_delay_ms(100);
// <20><>ע<EFBFBD><D7A2>Ϣ
//-------------------------------------------------------------------------------------------------------------------
void system_delay_ms(uint32 num)
{
    // SysTick->SR &= ~(1 << 0);

    // SysTick->CMP = (uint64_t)(system_clock / 8000) * num;
    // SysTick->CTLR |= (1 << 4);
    // SysTick->CTLR |= (1 << 5) | (1 << 0);

    // while ((SysTick->SR & (1 << 0)) != (1 << 0))
    //     ;

    // SysTick->CTLR &= ~(1 << 0);
    while (num--) {
        system_delay_us(1000);
    }
}

//-------------------------------------------------------------------------------------------------------------------
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>     system <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> us <20><><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     time            <20><>Ҫ<EFBFBD><D2AA>ʱ<EFBFBD><CAB1>ʱ<EFBFBD><CAB1> us <20><><EFBFBD><EFBFBD>
// <20><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD>     void
// ʹ<><CAB9>ʾ<EFBFBD><CABE>     system_delay_us(100);
// <20><>ע<EFBFBD><D7A2>Ϣ     <20><><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>߳<EFBFBD>һЩ
//-------------------------------------------------------------------------------------------------------------------
void system_delay_us(uint32 num)
{
    // SysTick->SR &= ~(1 << 0);

    // SysTick->CMP = (uint64_t)(system_clock/8000000) * num;
    // SysTick->CTLR |= (1 << 4);
    // SysTick->CTLR |= (1 << 5) | (1 << 0);

    // while((SysTick->SR & (1 << 0)) != (1 << 0));

    // SysTick->CTLR &= ~(1 << 0);

    uint64_t time_start = SysTick->CNT;
    uint64_t time_delta = (uint64_t)num * (uint64_t)(system_clock / 8000000);

    while (time_delta > (SysTick->CNT - time_start)) {
    }
}

uint64_t system_get_tick(void)
{
    uint64_t time_temp = SysTick->CNT;
    return (time_temp);
}

void system_delay_init(void)
{
    SysTick->CTLR |= 0x21;
}