Funpack2-2 TC275休眠功能

内容介绍

一、自我介绍：

我是来自广东的工程师钱卫国，目前主做VB编程.

二、硬件介绍：

参数KIT_AURIX_TC275_LITE家庭微控制器产品描述AURIX™ TC275 lite 套件配备了基于 32 位单芯片 AurixTM TriCoreTM 的微控制器 AurixTM TC275。它可以与一系列开发工具一起使用，包括 AURIXTM Development Studio、英飞凌免费的基于 Eclipse 的 IDE，或来自 Hitecs/PLS/Infineon 的基于 Eclipse 的“FreeEntryToolchain”类型评估板

该芯片有三个运算核、两个校验核，类似于将三个高性能单片机集成在一起，功能非常强大；
该芯片推出较早、各种开发例子、资料文档、开发工具相对较为齐全；其他型号均是在TC275之后推出，如性价比更高的TC234、TC212、TC297等等
由于集成3核、价格优势不是太明显；
有4通道can接口，4个can公用256个接收发送器；
有电机控制器专用接口；
内部Flash有4Mbyte；

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三、实现的功能和代码：

任务1: 使用TC275的三个核心，轮流休眠待机，分别控制板卡上的LED灯，如core0检测按键按下，唤醒core1翻转LED1，一秒后，唤醒core2翻转LED2，系统休眠

主要实现的功能是按键控制LED显示，串口实时显示电位器的模拟采样值和按键状态。代码主要参考综合例程。下面描述下具体实现：

1. 设置各个CPU的状态, 设置他们为休眠模式或者运行模式, 在各个main方法中调用就可以对特定CPU进行设置

int 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());

    /* Wait for CPU sync event */
    IfxCpu_emitEvent(&g_cpuSyncEvent);
    IfxCpu_waitEvent(&g_cpuSyncEvent, 1);

    /* Initialize Power Down Idle Training */

//    configSystemTimer();
    initStm(void); 
    init_GPIOs(void);
//    configLED();
    setidle1(); //set cpu1 to idle
    setidle2(); //set cpu2 to idle
    while(1)
    {
        if (key_push()) {switch_to_c1();}
    }

    return (1);
}

2. 设置一些全局变量,其中包含延迟的时间, 各个GPIO口的设置,闪烁的时间等参数

/* LED */
#define LED1                &MODULE_P00,5
#define LED2                &MODULE_P00,6
#define BUTTON  &MODULE_P00,7   /* Port pin for the button  */

#define ALLOW_SLEEP_MODE    0x0                 /* Allow sleep mode for GTM                                         */
#define BLOCK_SLEEP_MODE    0x1                 /* Block sleep mode for STM                                         */
#define PMSWCR1_CPUSEL      0x1                 /* Set the CPU0 as CPU master                                       */
#define PMCSR0_REQSLP       0x2                 /* Request sleep mode 

#define ISR_PRIORITY_2      2
/* Defines CPU that triggers the interrupt */
#define ISR_PROVIDER_CPU0   0
/* Defines CPU that triggers the interrupt */
#define ISR_PROVIDER_CPU2   2
/* Rate 0.5 Hz */
#define RATE_0_5_HZ         0.25
/* Rate 1 Hz */
#define RATE_1_HZ           0.5

3. GPIO初始化, 定时器的初始化, 相关外设初始化

void init_GPIOs(void)
{
    /* Setup the port pin connected to the LED to general output mode push-pull. This function can be used
     * to initialize any port pin by specifying the port number, pin number and port pin mode.
     */
    IfxPort_setPinMode(LED, IfxPort_Mode_outputPushPullGeneral);

    /* Setup the port pin connected to the push button to input mode. This function can be used to initialize any
     * port to input mode by just specifying the port number as illustrated.
     */
    IfxPort_setPinMode(BUTTON, IfxPort_Mode_inputPullUp);
}

/* Depending on the the state of the "BUTTON" port pin, the LED is turned on or off */
void control_LED(void)
{
    /* With the routine getPinState() the value of a particular pin can be retrieved. This
     * function can be used to retrieve any port state by just specifying the port number
     * as illustrated.
     */
    if(IfxPort_getPinState(BUTTON) == 0)
    {
        /* With the routine setPinState() the state of the port can be set to drive either
         * LOW or HIGH. This function can be used to retrieve any port state by just
         * specifying the port number as illustrated.
         */
        IfxPort_setPinState(LED, IfxPort_State_low);
    }
    else
    {
        IfxPort_setPinState(LED, IfxPort_State_high);
    }
}

void initTom(void)
{
    IfxGtm_enable(&MODULE_GTM);                                     /* Enable the GTM                               */

    IfxGtm_Tom_Timer_Config timerConfig;                            /* Timer configuration structure                */
    IfxGtm_Tom_Timer_initConfig(&timerConfig, &MODULE_GTM);         /* Initialize the timer configuration           */

    timerConfig.base.frequency = TOM_FREQ;                          /* Set the timer frequency                      */
    timerConfig.base.isrPriority = ISR_PRIORITY_TOM;                /* Set the interrupt priority                   */
    timerConfig.base.isrProvider = IfxSrc_Tos_cpu0;                 /* Set the interrupt provider                   */
    timerConfig.tom = IfxGtm_Tom_1;                                 /* Define the used timer                        */
    timerConfig.timerChannel = IfxGtm_Tom_Ch_0;                     /* Define the used channel                      */
    timerConfig.clock = IfxGtm_Tom_Ch_ClkSrc_cmuFxclk3;             /* Define the used CMU clock                    */

    IfxGtm_Cmu_enableClocks(&MODULE_GTM, IFXGTM_CMU_CLKEN_FXCLK);   /* Enable the CMU clock                         */
    IfxGtm_Tom_Timer_init(&g_gtmTimer, &timerConfig);               /* Initialize the TOM                           */

    IfxPort_setPinModeOutput(LED, IfxPort_OutputMode_pushPull, IfxPort_OutputIdx_general); /* Set port pin mode     */

    IfxGtm_Tom_Timer_run(&g_gtmTimer); /* Start the TOM */
}

/* This function initialize the STM to trigger an interrupt every two seconds */
void initStm(void)
{
    IfxStm_Timer_Config timerConfig;                                /* Timer configuration structure                */

    IfxStm_Timer_initConfig(&timerConfig, &MODULE_STM0);            /* Initialize it with default values            */

    timerConfig.base.frequency = 1 / g_stmPeriod;                   /* Interrupt rate every STM_PERIOD seconds      */
    timerConfig.base.isrPriority = ISR_PRIORITY_STM;                /* Interrupt priority                           */
    timerConfig.base.isrProvider = IfxSrc_Tos_cpu0;                 /* CPU0 to trigger the interrupt                */
    timerConfig.comparator = IfxStm_Comparator_0;                   /* Comparator 0 register is used                */

    IfxStm_Timer_init(&g_stmTimer, &timerConfig);                   /* Use timerConfig to initialize the STM        */

    IfxStm_Timer_run(&g_stmTimer);                                  /* Run the STM and set the compare Value        */
}

四、运行的情况

开机

第一次按下Button时翻转LED1

等待一秒后翻转LED2, 并且系统休眠

五、感想

用了挺长时间的Arduino，第一次使用英飞凌的开发环境，虽然感觉性能方面确实和Arduino差距挺大，首先核心数就是没法比的, TC275上有三个核心, 运行多线程任务的时候就不用再束手束脚了，做一些对性能需求不是很大的应用，比如这次任务，就非常适合使用TC275来进行开发。对于一些成本敏感的应用，但是价格相对来说就比较高了, 对价格敏感的项目就不适合使用TC275.

最后也要感谢电子森林提供这样的平台, 我从这个项目里面学到了很多, 希望电子森林越办越好.

一、自我介绍：

我是来自广东的工程师钱卫国，目前主做VB编程.

二、硬件介绍：

该芯片有三个运算核、两个校验核，类似于将三个高性能单片机集成在一起，功能非常强大；
该芯片推出较早、各种开发例子、资料文档、开发工具相对较为齐全；其他型号均是在TC275之后推出，如性价比更高的TC234、TC212、TC297等等
由于集成3核、价格优势不是太明显；
有4通道can接口，4个can公用256个接收发送器；
有电机控制器专用接口；
内部Flash有4Mbyte；

三、实现的功能和代码：

主要实现的功能是按键控制LED显示，串口实时显示电位器的模拟采样值和按键状态。代码主要参考综合例程。下面描述下具体实现：

1. 设置各个CPU的状态, 设置他们为休眠模式或者运行模式, 在各个main方法中调用就可以对特定CPU进行设置

int 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());

    /* Wait for CPU sync event */
    IfxCpu_emitEvent(&g_cpuSyncEvent);
    IfxCpu_waitEvent(&g_cpuSyncEvent, 1);

    /* Initialize Power Down Idle Training */

//    configSystemTimer();
    initStm(void); 
    init_GPIOs(void);
//    configLED();
    setidle1(); //set cpu1 to idle
    setidle2(); //set cpu2 to idle
    while(1)
    {
        if (key_push()) {switch_to_c1();}
    }

    return (1);
}

2. 设置一些全局变量,其中包含延迟的时间, 各个GPIO口的设置,闪烁的时间等参数

/* LED */
#define LED1                &MODULE_P00,5
#define LED2                &MODULE_P00,6
#define BUTTON  &MODULE_P00,7   /* Port pin for the button  */

#define ALLOW_SLEEP_MODE    0x0                 /* Allow sleep mode for GTM                                         */
#define BLOCK_SLEEP_MODE    0x1                 /* Block sleep mode for STM                                         */
#define PMSWCR1_CPUSEL      0x1                 /* Set the CPU0 as CPU master                                       */
#define PMCSR0_REQSLP       0x2                 /* Request sleep mode 

#define ISR_PRIORITY_2      2
/* Defines CPU that triggers the interrupt */
#define ISR_PROVIDER_CPU0   0
/* Defines CPU that triggers the interrupt */
#define ISR_PROVIDER_CPU2   2
/* Rate 0.5 Hz */
#define RATE_0_5_HZ         0.25
/* Rate 1 Hz */
#define RATE_1_HZ           0.5

3. GPIO初始化, 定时器的初始化, 相关外设初始化

void init_GPIOs(void)
{
    /* Setup the port pin connected to the LED to general output mode push-pull. This function can be used
     * to initialize any port pin by specifying the port number, pin number and port pin mode.
     */
    IfxPort_setPinMode(LED, IfxPort_Mode_outputPushPullGeneral);

    /* Setup the port pin connected to the push button to input mode. This function can be used to initialize any
     * port to input mode by just specifying the port number as illustrated.
     */
    IfxPort_setPinMode(BUTTON, IfxPort_Mode_inputPullUp);
}

/* Depending on the the state of the "BUTTON" port pin, the LED is turned on or off */
void control_LED(void)
{
    /* With the routine getPinState() the value of a particular pin can be retrieved. This
     * function can be used to retrieve any port state by just specifying the port number
     * as illustrated.
     */
    if(IfxPort_getPinState(BUTTON) == 0)
    {
        /* With the routine setPinState() the state of the port can be set to drive either
         * LOW or HIGH. This function can be used to retrieve any port state by just
         * specifying the port number as illustrated.
         */
        IfxPort_setPinState(LED, IfxPort_State_low);
    }
    else
    {
        IfxPort_setPinState(LED, IfxPort_State_high);
    }
}

void initTom(void)
{
    IfxGtm_enable(&MODULE_GTM);                                     /* Enable the GTM                               */

    IfxGtm_Tom_Timer_Config timerConfig;                            /* Timer configuration structure                */
    IfxGtm_Tom_Timer_initConfig(&timerConfig, &MODULE_GTM);         /* Initialize the timer configuration           */

    timerConfig.base.frequency = TOM_FREQ;                          /* Set the timer frequency                      */
    timerConfig.base.isrPriority = ISR_PRIORITY_TOM;                /* Set the interrupt priority                   */
    timerConfig.base.isrProvider = IfxSrc_Tos_cpu0;                 /* Set the interrupt provider                   */
    timerConfig.tom = IfxGtm_Tom_1;                                 /* Define the used timer                        */
    timerConfig.timerChannel = IfxGtm_Tom_Ch_0;                     /* Define the used channel                      */
    timerConfig.clock = IfxGtm_Tom_Ch_ClkSrc_cmuFxclk3;             /* Define the used CMU clock                    */

    IfxGtm_Cmu_enableClocks(&MODULE_GTM, IFXGTM_CMU_CLKEN_FXCLK);   /* Enable the CMU clock                         */
    IfxGtm_Tom_Timer_init(&g_gtmTimer, &timerConfig);               /* Initialize the TOM                           */

    IfxPort_setPinModeOutput(LED, IfxPort_OutputMode_pushPull, IfxPort_OutputIdx_general); /* Set port pin mode     */

    IfxGtm_Tom_Timer_run(&g_gtmTimer); /* Start the TOM */
}

/* This function initialize the STM to trigger an interrupt every two seconds */
void initStm(void)
{
    IfxStm_Timer_Config timerConfig;                                /* Timer configuration structure                */

    IfxStm_Timer_initConfig(&timerConfig, &MODULE_STM0);            /* Initialize it with default values            */

    timerConfig.base.frequency = 1 / g_stmPeriod;                   /* Interrupt rate every STM_PERIOD seconds      */
    timerConfig.base.isrPriority = ISR_PRIORITY_STM;                /* Interrupt priority                           */
    timerConfig.base.isrProvider = IfxSrc_Tos_cpu0;                 /* CPU0 to trigger the interrupt                */
    timerConfig.comparator = IfxStm_Comparator_0;                   /* Comparator 0 register is used                */

    IfxStm_Timer_init(&g_stmTimer, &timerConfig);                   /* Use timerConfig to initialize the STM        */

    IfxStm_Timer_run(&g_stmTimer);                                  /* Run the STM and set the compare Value        */
}

四、运行的情况

开机时core0启动, 监听按键

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按下Button是core1启动, core0休眠,led1翻转

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等待一秒后core2启动,core1休眠,led2翻转, 之后所有core休眠

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五、感想

最后也要感谢电子森林提供这样的平台, 我从这个项目里面学到了很多, 希望电子森林越办越好.