MP3播放器详细设计方案
源代码在线查看： board.h
/*H**************************************************************************
* $RCSfile: board.h,v $
*----------------------------------------------------------------------------
* Copyright (c) 2002 Atmel.
*----------------------------------------------------------------------------
* RELEASE: $Name: DEMO_FAT_1_9_9 $
* REVISION: $Revision: 1.12 $
* FILE_CVSID: $Id: board.h,v 1.12 2002/09/06 13:08:21 njourdan Exp $
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the demonstration board definition
*****************************************************************************/
#ifndef _BOARD_H_
#define _BOARD_H_
/*_____ I N C L U D E S ____________________________________________________*/
#include "..\lib\kbd\kbd_drv.h" /* keyboard driver definition */
/*_____ M A C R O S ________________________________________________________*/
/*----- Board definition -----*/
/* BOARD VERSION */
#define VERSION 22 /* V2.1 or V2.2 */
/* LCD */
#define LCD_CMD_ADD 0x8880 /* Command register address */
#define LCD_DAT_ADD 0xC881 /* Data register address */
/* DAC */
#define DAC_MUTE P4_3 /* DAC mute port */
#define DAC_DEEM P3_7 /* DAC de-emphasis port */
#define DAC_CLK P3_1 /* DAC CSEL port */
#define DAC_NB_BIT 20 /* 20-bit DAC */
/* ADC */
#define AD_CLOCK (FPER / F_CONV_MAX / 2) /* ADC clock divider */
#define BATTERY_CHANNEL ((Byte)0x01) /* ADC battery channel 1 */
#define VOICE_CHANNEL ((Byte)0x00) /* ADC voice channel 0 */
/* ECP Interface */
#define ECP_CTRL P3 /* Control port */
#define ECP_DATA P5 /* Data port */
#define ECP_PCLK P3_0 /* PeriphClk signal */
#define ECP_PACK P3_1 /* PeriphAck signal */
#define ECP_1284 P3_2 /* 1284_Active signal */
#define ECP_HCLK P3_3 /* HostClk signal */
#define ECP_HACK P3_4 /* HostAck signal */
#define ECP_NRRV P3_5 /* nReverseRequest signal */
#define ECP_NARV P3_7 /* nAckReverse signal */
#define ECP_NEGO ((Byte)0x10) /* negociation ECP byte */
/* DataFlash Memories */
#if VERSION == 21
#define DF_4_MB /* AT45DB321 Memories */
#else
#define DF_8_MB /* AT45DB642 Memories */
#endif
#define DF_CS P4 /* dataflash CS# port */
#define DF_CS0 P4_4
#define DF_CS1 P4_5
#define DF_CS2 P4_6
#define DF_CS3 P4_7
#define DF_DESEL_ALL ((Byte)0xF0) /* set CS# dataflash memories */
#define DF_NB_MEM ((Byte)4) /* 4 on-board memories */
/* MultiMediaCard */
#define MM_MAX_CARDS 2 /* number of maximum on-board cards */
/* NAND Flash (SMC extended version) */
/* ALE = A9
CLE = A8
WP# = A10
CS# = P2.3/A11
R/B#= P2.4/A12
*/
#define SMC_IDLE_STATE_ADD 0x1C /* Smart Media Card not selected */
#define SMC_ADD_LATCH_ENABLE_ADD 0x2600 /* Address Latch Enable Address */
#define SMC_CMD_LATCH_ENABLE_ADD 0x2500 /* Command Latch Enable Address */
#define SMC_ADDRESS_CMD_DATA 0x2400 /* Command / Data Address register */
#define SMC_RD_BUSY P2_4
#define Smc_CS_ON() (P2_3 = 0)
#define Smc_CS_OFF() (P2_3 = 1)
#define NF_IDLE_STATE_ADD 0x1C /* Smart Media Card not selected */
#define NF_ADD_LATCH_ENABLE_ADD 0x2600 /* Address Latch Enable Address */
#define NF_CMD_LATCH_ENABLE_ADD 0x2500 /* Command Latch Enable Address */
#define NF_ADDRESS_CMD_DATA 0x2400 /* Command / Data Address register */
#define NF_RD_BUSY P2_4
#define Nf_CS_ON() (P2_3 = 0)
#define Nf_CS_OFF() (P2_3 = 1)
/* Key Definition */
#define KEY_SOUND KEY_0_0 /* sound select */
#define KEY_MEM KEY_0_1 /* memory select */
#define KEY_SPARE KEY_0_2 /* */
#define KEY_REPEAT KEY_0_3 /* repeat set / unset */
#define KEY_PARENT KEY_0_3 /* parent directory */
#define KEY_INC KEY_1_0 /* + */
#define KEY_PREV KEY_1_1 /* Previous */
#define KEY_NEXT KEY_1_2 /* Next */
#define KEY_PLAY KEY_1_3 /* Play or enter directory */
#define KEY_PAUSE KEY_1_3 /* Pause */
#define KEY_ENTER KEY_1_3 /* Enter in menu */
#define KEY_DEC KEY_2_0 /* - */
#define KEY_REC KEY_2_1 /* Record */
#define KEY_DEL KEY_2_1 /* Delete */
#define KEY_STOP KEY_2_2 /* Stop */
#define KEY_MODE KEY_2_2 /* mode change */
/*_____ D E F I N I T I O N ________________________________________________*/
/*_____ D E C L A R A T I O N ______________________________________________*/
#endif /* _BOARD_H_ */
