timer1_main.c

来自「ADC图形图像例子」· C语言 代码 · 共 99 行

#include "int.h"
#include "register.h"
#include "io.h"
#include "uart.h"


volatile vgBOOL LedFlage=vgTRUE;
volatile int count=0;


void led_init()
{
    long val;    
	
    /* Set the pin45 to be PIO27 */
    val = readl( REG_PMCR1 );	
	writel( REG_PMCR1 , val | 0x400 );
    
    /* Set the PIO27 to be Output (OC) mode */	
	val = readl( REG_PIOMOD );	
	writel( REG_PIOMOD , 0x00);
}


void led_on(void)
{
    int val;
    
    /* Turn on LED */    
	val = readl( REG_PIOLDAT );	
	writel( REG_PIOLDAT , 0x08000000);
}


void led_off(void)
{
    int val;
    
    /* Turn off LED */     
	val = readl( REG_PIOLDAT );	
	writel( REG_PIOLDAT , 0);
}


void LedEvent(void)
{	
	if(count ==15)
	{
		count=0;
	}
	else 
	{
		count++;
		return;
	}
	
	if(vgTRUE == LedFlage)
	{
		led_on();
		LedFlage = vgFALSE;
	}
	else
	{
		led_off();
		LedFlage = vgTRUE;
	}

	UartPrintfCh1("15 Timer1 interrupt happened! \r\n");
}


int main(void)
{
	U32 Freq;
	
	// Disable Cache
	_vgSDK_Cache_Flag = 0;
	
	// initialize for DebugPrintf
	UartConfigCh1(DATABIT8, BPS115200); 
	
	// Initialize Interrupt
	InitInterrupt();	
	
	// Get System Frequency
	Freq = vgGetSysFreq();
	
	// Initialize Timer1
	vgInitTimer1( TIMER1, Freq );
	led_init();	
	
	vgSetTimer1( 65535);
	UartPrintfCh1("Timer1 interrupt start! \r\n");
	
	while(1);

	return 0;
}