ISD9100系列的TALARM

/**************************************************************************//**

 * [url=home.php?mod=space&uid=288409]@file[/url]     main.c

 * [url=home.php?mod=space&uid=895143]@version[/url]  V1.00

 * $Revision: 1 $

 * $Date: 14/07/01 10:00p $

 * [url=home.php?mod=space&uid=247401]@brief[/url]    Access temperature alarm event via TALARM interrupt.

 * @note

 * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.

 *

 ******************************************************************************/

#include <stdio.h>

#include <string.h>

#include "ISD9100.h"



/* Config-Bit to start or stop the SysTick Timer */

#define SYSTICK_ENABLE              0    

/* Clocksource has the offset 2 in SysTick Control and Status Register */

#define SYSTICK_CLKSOURCE           2 

/* Waiting for 12M Xtal stalble */

#define SYSTEM_DELAY_US             5000



void TALARM_IRQHandler(void)

{

        /* Clear tempture alarm interrupt flag */

        TALARM_ClearIntFlag(BODTALM);



        printf("Temperature Sense event occurs\n");

}



void SYS_Init(void)

{

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

    /* Init System Clock                                                                                       */

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

    /* Unlock protected registers */

    SYS_UnlockReg();



    /* Enable External OSC49M */

    CLK_EnableXtalRC(CLK_PWRCTL_LXTEN_Msk);



        /* Assume the internal 22MHz RC used(waiting for 12Xtal stalble) */

    SysTick->LOAD = SYSTEM_DELAY_US * 22; 

    SysTick->VAL = (0x00);

    SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (1<<SYSTICK_ENABLE);



    /* Waiting for down-count to zero(waiting for 12Xtal stalble) */

    while((SysTick->CTRL & (1 << 16)) == 0);



        /* Set Uart CLK source */

        CLK_SetModuleClock(UART_MODULE, NULL, CLK_CLKDIV0_UART(1));

        

    /* Enable IP clock */

    CLK_EnableModuleClock(UART_MODULE);

        

    /* Update System Core Clock */

    /* User can use SystemCoreClockUpdate() to calculate SystemCoreClock. */

    SystemCoreClockUpdate();



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

    /* Init I/O Multi-function                                                                                 */

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

    /* Set GPG multi-function pins for UART0 RXD and TXD */

        SYS->GPA_MFP  = (SYS->GPA_MFP & (~SYS_GPA_MFP_PA8MFP_Msk) ) | SYS_GPA_MFP_PA8MFP_UART_TX;

        SYS->GPA_MFP  = (SYS->GPA_MFP & (~SYS_GPA_MFP_PA9MFP_Msk) ) | SYS_GPA_MFP_PA9MFP_UART_RX;



    /* Lock protected registers */

    SYS_LockReg();

}



/* Main */

int main(void)

{

    /* Init System, IP clock and multi-function I/O */

    SYS_Init();        



    /* Init UART to 115200-8n1 for print message */

    UART_Open(UART0, 115200);



    printf("\n+------------------------------------------------------------------------+\n");

    printf("|                           TALAM Sample Code                            |\n");

    printf("+------------------------------------------------------------------------+\n");

    printf("| Temperature Alarm Sense Level = 105C                                   |\n");

    printf("+------------------------------------------------------------------------+\n");

    printf("\n");

        

        /* Initate tempture alarm & detect value */

        TALARM_Open(TALARM_TALMVL_105C);

        /* Enable interrupt */

        TALARM_EnableInt(BODTALM);

        NVIC_EnableIRQ(TALARM_IRQn);



    while(1);

}



/*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/