GD春季芯耀+仓库温度报警系统

#include <stdio.h>

#include "bsp_ds18b20.h"

#include "gd32f3x0.h"

#include "colibri_bsp.h"



#define DS18B20_SKIP_ROM       0xcc   //跳过序列号

#define DS18B20_COVERTT        0x44   //数值转换

#define DS18B20_READ_MEM       0xbe   //读取数据



uint32_t Tick;

uint16_t buffer[3]={249,499,749};

GPIO_InitPara GPIO_InitStructure;



static volatile uint32_t uwTick;

void systick_config(void)

{

        /* setup systick timer for 1Mhz interrupts */

        if (SysTick_Config(SystemCoreClock / 1000000U))        while (1);        //1Mhz

      /* configure the systick handler priority */

      NVIC_SetPriority(SysTick_IRQn, 0x00U);

}

void GD_decTick(void)

{

        if(0U != uwTick){

        uwTick--;

        }

}

void delayus(uint32_t nTime)

{

        uwTick = nTime;

        while(0U != uwTick){

    }

}

void delayms(uint32_t nTime)

{

        uwTick = nTime*1000;

        while(0U != uwTick){

    }

}

void SysTick_Callback(void)

{

}



void SysTick_Handler(void)  //1Mhz

{

        static uint32_t time =0;  

        time++;

        GD_decTick();

        if(time == LOOP_TIME){                //1M/LOOP_TIME=1M/10000=100hz

                SysTick_Callback();

    time = 0;

  }

}



/*!

    \brief      configure the TIMER peripheral

    \param[in]  none

    \param[out] none

    \retval     none

  */

void timer_config(void)

{

    /* TIMER0 DMA Transfer example -------------------------------------------------

    TIMER0CLK = 84MHz(GD32F330) or 108MHz(GD32F350), Prescaler = 84(GD32F330) or 108(GD32F350) 

    TIMER0 counter clock 1MHz.



    the objective is to configure TIMER0 channel 1 to generate PWM

    signal with a frequency equal to 1KHz and a variable duty cycle(25%,50%,75%) that is 

    changed by the DMA after a specific number of update DMA request.



    the number of this repetitive requests is defined by the TIMER0 repetition counter,

    each 2 update requests, the TIMER0 Channel 0 duty cycle changes to the next new 

    value defined by the buffer . 

    -----------------------------------------------------------------------------*/

    timer_oc_parameter_struct timer_ocintpara;

    timer_parameter_struct timer_initpara;



    rcu_periph_clock_enable(RCU_TIMER0);



    timer_deinit(TIMER0);



    /* TIMER0 configuration */

#ifdef GD32F330

    timer_initpara.prescaler         = 83;

#endif /* GD32F330 */

#ifdef GD32F350

    timer_initpara.prescaler         = 107;

#endif /* GD32F350 */

    timer_initpara.alignedmode       = TIMER_COUNTER_EDGE;

    timer_initpara.counterdirection  = TIMER_COUNTER_UP;

    timer_initpara.period            = 999;

    timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;

    timer_initpara.repetitioncounter = 1;

    timer_init(TIMER0,&timer_initpara);



    /* CH0 configuration in PWM0 mode */

    timer_ocintpara.outputstate  = TIMER_CCX_ENABLE;

    timer_ocintpara.outputnstate = TIMER_CCXN_ENABLE;

    timer_ocintpara.ocpolarity   = TIMER_OC_POLARITY_HIGH;

    timer_ocintpara.ocnpolarity  = TIMER_OCN_POLARITY_HIGH;

    timer_ocintpara.ocidlestate  = TIMER_OC_IDLE_STATE_HIGH;

    timer_ocintpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;

    timer_channel_output_config(TIMER0,TIMER_CH_0,&timer_ocintpara);



    timer_channel_output_pulse_value_config(TIMER0,TIMER_CH_0,buffer[0]);

    timer_channel_output_mode_config(TIMER0,TIMER_CH_0,TIMER_OC_MODE_PWM0);

    timer_channel_output_shadow_config(TIMER0,TIMER_CH_0,TIMER_OC_SHADOW_DISABLE);



    /* TIMER0 primary output enable */

    timer_primary_output_config(TIMER0,ENABLE);



    /* TIMER0 update DMA request enable */

    timer_dma_enable(TIMER0,TIMER_DMA_UPD);



    /* auto-reload preload enable */

    timer_auto_reload_shadow_enable(TIMER0);



    /* TIMER0 counter enable */

    timer_enable(TIMER0);

}



void GPIO_Init(uint32_t gpio_periph,GPIO_InitPara *Para)

{

    rcu_periph_clock_enable(RCU_GPIOB);

   

    rcu_periph_clock_enable(RCU_GPIOB);

    GPIO_BOP(gpio_periph) = Para->GPIO_Pin;

    GPIO_OSPD0(gpio_periph) = Para->GPIO_Speed;

    GPIO_OMODE(gpio_periph) = Para->GPIO_Mode;

    GPIO_BC(gpio_periph) = Para->GPIO_Pin;

}



void TempGPIOInit(void)

{

        rcu_periph_clock_enable(RCU_GPIOB);

        GPIO_InitStructure.GPIO_Pin = GPIO_PIN_12;

        GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUT_PP;

        GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;

        GPIO_Init(GPIOB,&GPIO_InitStructure);

}



void TempGPIOin(void)

{

        GPIO_InitStructure.GPIO_Pin = GPIO_PIN_12;

        GPIO_InitStructure.GPIO_Mode = GPIO_MODE_IN_FLOATING;

        GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;

        GPIO_Init(GPIOB,&GPIO_InitStructure);

}



void TempGPIOout(void)

{

        GPIO_InitStructure.GPIO_Pin = GPIO_PIN_12;

        GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUT_PP;

        GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;

        GPIO_Init(GPIOB,&GPIO_InitStructure);

}

void RunBeepExternal(unsigned int TimeCounter)

{

          gpio_mode_set(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,GPIO_PIN_6);

          delayus(TimeCounter);

        EvbBeepExternalControl(BEEP_ON);

        delayus(TimeCounter);        

          EvbBeepExternalControl(BEEP_OFF);

        delayus(TimeCounter);

        EvbBeepExternalControl(BEEP_ON);

        delayus(TimeCounter);        

          EvbBeepExternalControl(BEEP_OFF);

          delayus(TimeCounter);

        EvbBeepExternalControl(BEEP_ON);

        delayus(TimeCounter);        

          EvbBeepExternalControl(BEEP_OFF);

          delayus(TimeCounter);        

}