ATMEL MCU用于MP3播放系统的控制源代码程序
源代码在线查看： timer_drv.h
/*H**************************************************************************
* NAME: timer_drv.h
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE: snd1c-refd-nf-4_0_3
* REVISION: 1.3
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the timers 0, 1 and watchdog driver definition
*****************************************************************************/
#ifndef _TIMER_DRV_H_
#define _TIMER_DRV_H_
/*_____ I N C L U D E S ____________________________________________________*/
/*_____ M A C R O S ________________________________________________________*/
#if T0_X2 == TRUE
#define FT0_IN FOSC/2
#else
#define FT0_IN FPER
#endif
#if T1_X2 == TRUE
#define FT1_IN FOSC/2
#else
#define FT1_IN FPER
#endif
#define T0_MODE_0 0x00
#define T0_MODE_1 0x01
#define T0_MODE_2 0x02
#define T0_MODE_3 0x03
#define T0_COUNTER 0x04
#define T0_TIMER 0x00
#define T0_GATED 0x08
#define T0_NOT_GATED 0x00
#define T1_MODE_0 0x00
#define T1_MODE_1 0x10
#define T1_MODE_2 0x20
#define T1_MODE_3 0x30
#define T1_COUNTER 0x40
#define T1_TIMER 0x00
#define T1_GATED 0x80
#define T1_NOT_GATED 0x00
/*_____ D E F I N I T I O N ________________________________________________*/
/*_____ D E C L A R A T I O N ______________________________________________*/
void t0_set_prio (Byte);
void t1_set_prio (Byte);
#if T0_X2 == TRUE
#define T0_init(g,c,m) (CKCON |= MSK_T1X2); (TMOD &= 0xF0); (TMOD |= (g | c | m))
#else
#define T0_init(g,c,m) (CKCON &= ~MSK_T1X2); (TMOD &= 0xF0); (TMOD |= (g | c | m))
#endif
#define T0_start() (TR0= 1)
#define T0_stop() (TR0= 0)
#define T0_enable_int() (ET0= 1)
#define T0_disable_int() (ET0= 0)
#define T0_set_low(l) (TL0= l)
#define T0_set_high(h) (TH0= h)
#if T1_X2 == TRUE
#define T1_init(g,c,m) (CKCON |= MSK_T1X2); (TMOD &= 0x0F); (TMOD |= (g | c | m))
#else
#define T1_init(g,c,m) (CKCON &= ~MSK_T1X2); (TMOD &= 0x0F); (TMOD |= (g | c | m))
#endif
#define T1_start() (TR1= 1)
#define T1_stop() (TR1= 0)
#define T1_enable_int() (ET1= 1)
#define T1_disable_int() (ET1= 0)
#define T1_set_low(l) (TL1= l)
#define T1_set_high(h) (TH2= h)
#endif /* _TIMER_DRV_H_ */
