mega16._c

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//**************************************************************************/
//			探头控制器第二代mega16L
//                          mega16L  8M
//*************************************************************************/
//创 建 人:胡勇刚
//创建日期:2005年3月3日
//版 本 号:001
//*************************************************************************/
#define TANTOU_C
#include "config.h"

#define key_in() ((PINB >> 5) & 0x07)

uchar char_count;
uchar set_state;
uchar time_data[16];
uchar i;
//-------------------------------------------------------------------------

#pragma interrupt_handler int0_isr:2
void int0_isr(void);

#pragma interrupt_handler int1_isr:3
void int1_isr(void);

//-------------------------------------------------------------------------
void port_int (void);			//端口初始化
void init_devices(void);		//单片机初始化
void delay_us (uint time);		//延迟time微秒
void delay_ms (uint time);		//延迟time毫秒
void count_write(uchar ,uchar ,uchar);
//-------------------------------------------------------------------------
void port_init(void)
{
	PORTA = 0x00;
	DDRA  = 0x00;
	PORTB = 0xFF;
	DDRB  = 0x1F;
	PORTC = 0x00; //m103 output only
	DDRC  = 0x00;
	PORTD = 0xff;
	DDRD  = 0x00;
}
//-------------------------------------------------------------------------

void delay_us(uint time)
{
	uint i;
	for(i=0;i<time;i++)
	{
		delay_1us();
	}
}
//-------------------------------------------------------------------------
void delay_ms(uint time)
{
	uint i;
	for(i=0;i<time;i++)
	{
		delay_us(1000);
	}
}
/******************************************************************************/
void count_write(uchar x,uchar y,uchar count)
{
	lcd_print816(x,y,count_array[count >> 4]);
	lcd_print816(x,y+8,count_array[count & 0xf]);
}
/******************************************************************************/
void count_reverse(uchar x,uchar y,uchar count)
{
	lcd_reverse(x,y,count_array[count>>4]);
	lcd_reverse(x,y+8,count_array[count & 0xf]);
}
/******************************************************************************/
//Watchdog initialize
// prescale: 2048K
void watchdog_init(void)
{
 WDR(); //this prevents a timout on enabling
 WDTCR = 0x0F; //WATCHDOG ENABLED - dont forget to issue WDRs
}
void watchdog_off(void)
{
	WDR();
	WDTCR |= BIT(WDTOE);
	WDTCR  = 0x00;
}
//call this routine to initialize all peripherals
void init_devices(void)
{
	//stop errant interrupts until set up
	CLI(); //disable all interrupts
	port_init();
	watchdog_init();

	MCUCR = 0x00;
	GICR  = 0xC0;
	TIMSK = 0x00; //timer interrupt sources
	SEI(); //re-enable interrupts
	//all peripherals are now initialized
}

void time_init(void)
{
	/* 初始化pcf8563 */
	time_data[0] = 9;
	time_data[1] = 0;
	time_data[2] = 0;        //控制/状态寄存器1
	time_data[3] = 0;        //控制/状态寄存器2
	time_data[4] = 0;        //秒
	time_data[5] = 0x30;     //分
	time_data[6] = 0x12;     //时
	time_data[7] = 0x16;     //日
	time_data[8] = 0x00;     //星期
	time_data[9] = 0x03;     //月/世