avrx.c

AVR单片机专用的操作系统AVRX

#include"includes.h" 

#define LED1_ON  PORTA = 0b11111101
#define LED2_ON  PORTA = 0b11111011
#define LED3_ON  PORTA = 0b11110111

static void portinit(void);
static void uart0_init(void);

AVRX_GCC_TASK(task1,20, 1);
AVRX_GCC_TASK(task2,20, 2);
AVRX_GCC_TASK(task3,20, 3);

/*********************************自定义变量*********************************************/
TimerControlBlock   timer1,timer2;

/*****************************************************************************************/
int main(void)                 
{
	AvrXSetKernelStack(0);
	MCUCR = 0x00;
    TCNT0 = 0xd5;
    TCCR0 = 0x06;
    TIMSK = 0x01;
	portinit();
	uart0_init();
    AvrXRunTask(TCB(task1));        //任务1
    AvrXRunTask(TCB(task2));        //任务2
	AvrXRunTask(TCB(task3));        //任务3
    Epilog();                   
    while(1);
}

AVRX_SIGINT(SIG_OVERFLOW0)
{
    IntProlog();                // Switch to kernel stack/context
    TCNT0 = 0xd5;
    AvrXTimerHandler();         // Call Time queue manager
    Epilog();                   // Return to tasks
}

static void portinit(void)
{
	PORTA = 0xFF;
	DDRA  = 0xFF;
	PORTB = 0xFF;
	DDRB  = 0xFF;
	PORTC = 0xFF; //m103 output only
	DDRC  = 0xFF;
	PORTD = 0xFF;
	DDRD  = 0xFF;
	PORTE = 0xFF;
	DDRE  = 0xFF;
	PORTF = 0xFF;
	DDRF  = 0xFF;
	PORTG = 0xFF;
	DDRG  = 0xFF;
}

static void uart0_init(void)
{
 	 UCSR0B = 0x00; 
 	 UCSR0A = 0x00;
 	 UCSR0C = 0x06;
 	 UBRR0L = 0x05; 
 	 UBRR0H = 0x00; 
 	 UCSR0B = 0x98;
}   



NAKEDFUNC(task1)            //任务1：串口发送
{
	while (1)
	{
		SendString("AVRX Test!\n");
		AvrXDelay(&timer1,1000);
	}
}


NAKEDFUNC(task2)           //任务2：LED灯闪烁 
{
    while (1)
    {         
		LED1_ON;    
		AvrXDelay(&timer2,200);
		
		LED2_ON;
		AvrXDelay(&timer2,200);
		
		LED3_ON;
		AvrXDelay(&timer2,200);
    }
}


NAKEDFUNC(task3)          //任务3：检测按键
{
    while (1)
	{
		switch(Key())
		{
			case 1:
				SendString("Key1\n");
			break;
			case 2:
				SendString("Key2\n");
			break;
			case 3:
				SendString("Key3\n");
			break;
			case 4:
				SendString("Key4\n");
			break;
			case 5:
				SendString("Key5\n");
			break;
			case 6:
				SendString("Key6\n");
			break;
			case 7:
				SendString("Key7\n");
			break;
			case 8:
				SendString("Key8\n");
			break;
			case 9:
				SendString("Key9\n");
			break;
			case 10:
				SendString("Key10\n");
			break;
			case 11:
				SendString("Key11\n");
			break;
			case 12:
				SendString("Key12\n");
			break;
			case 13:
				SendString("Key13\n");
			break;
			case 14:
				SendString("Key14\n");
			break;
			case 15:
				SendString("Key15\n");
			break;
			case 16:
				SendString("Key16\n");
			break;
			default:
			break;
		}
	}
}