AURIX-TC3X7:系统定时器-STM实验

/*

 * System_Time.c

 *

 *  Created on: 2022年7月9日

 *      Author: Kevin

 */



#include "System_Time.h"

#include "IfxStm.h"



void systick_delay(STMN_enum stmn, uint32 time, uint32 num)

{

    uint32 stm_clk;

    uint32 delay_time;

    stm_clk = IfxStm_getFrequency(IfxStm_getAddress((IfxStm_Index)stmn));

    delay_time = (uint32)(stm_clk/1000000*time/1000);



    while(num--)

    {

        IfxStm_waitTicks(IfxStm_getAddress((IfxStm_Index)stmn), delay_time);

    }



}

/*

 * System_Time.h

 *

 *  Created on: 2022年7月9日

 *      Author: Kevin

 */



#ifndef MY_DRIVER_HARDWARE_SYSTEM_TIME_H_

#define MY_DRIVER_HARDWARE_SYSTEM_TIME_H_





#include "Platform_Types.h"   //定义数据类型



typedef enum  // 枚举STM模块号

{

    STM0,

    STM1,

    STM2,

    STM3,

    STM4,

}STMN_enum;





void systick_delay(STMN_enum stmn, uint32 time, uint32 num);

void systick_start(STMN_enum stmn);

uint32 systick_getval(STMN_enum stmn);



//------------------------------------以下宏定义用于延时------------------------------------

#define systick_delay_ms(stmn, time)    systick_delay(stmn, 1000000, time)  //设置延时时间  单位ms

#define systick_delay_us(stmn, time)    systick_delay(stmn, time*1000, 1)   //设置延时时间  单位us

#define systick_delay_ns(stmn, time)    systick_delay(stmn, time, 1)        //设置延时时间  单位ns



//------------------------------------以下宏定义用于获取当前时间------------------------------------

#define systick_getval_ms(stmn)         systick_getval(stmn)/100000         //获取当前计时时间  单位ms

#define systick_getval_us(stmn)         systick_getval(stmn)/100            //获取当前计时时间  单位us

#define systick_getval_ns(stmn)         systick_getval(stmn)*10             //获取当前计时时间  单位ns





#endif /* MY_DRIVER_HARDWARE_SYSTEM_TIME_H_ */

#include "Ifx_Types.h"

#include "IfxCpu.h"

#include "IfxScuWdt.h"

#include "System_Time.h"



IFX_ALIGN(4) IfxCpu_syncEvent g_cpuSyncEvent = 0;



void core0_main(void)

{

    IfxCpu_enableInterrupts();

    

    /* !!WATCHDOG0 AND SAFETY WATCHDOG ARE DISABLED HERE!!

     * Enable the watchdogs and service them periodically if it is required

     */

    IfxScuWdt_disableCpuWatchdog(IfxScuWdt_getCpuWatchdogPassword());

    IfxScuWdt_disableSafetyWatchdog(IfxScuWdt_getSafetyWatchdogPassword());

    

    IfxPort_setPinModeOutput(&MODULE_P20,8, IfxPort_OutputMode_pushPull, IfxPort_OutputIdx_general);

    IfxPort_setPinHigh(&MODULE_P20,8);   //Switch OFF the LED (low-level active)



    /* Wait for CPU sync event */

    IfxCpu_emitEvent(&g_cpuSyncEvent);

    IfxCpu_waitEvent(&g_cpuSyncEvent, 1);

    

    while(1)

    {

        IfxPort_togglePin(&MODULE_P20,8);       /* Toggle the state of the LED*/



        systick_delay_ms(STM0, 1000); //延时1S



    }

}