基于AT89C51SND1的MP3的程序设计(包括播放mp3和录音功能)
源代码在线查看： board.h
/*H**************************************************************************
* NAME: board.h
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE: snd1c-refd-nf-4_0_3
* REVISION: 1.17
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the demonstration board definition
*****************************************************************************/
#ifndef _BOARD_H_
#define _BOARD_H_
/*_____ I N C L U D E S ____________________________________________________*/
#include "lib_mcu\kbd\kbd_drv.h" /* keyboard driver definition */
/*_____ M A C R O S ________________________________________________________*/
/*----- Board definition -----*/
/* BOARD VERSION */
#define VERSION 36 /* Version */
#define REFD
/* DAC */#define DAC_MUTE P3_5 /* DAC mute port */
#define DAC_APPSEL P5_3 /* DAC AppSel */
#define DACTEST P3_2 /* DAC AppSel */
#define DAC_DEEM P2_6 /* DAC de-emphasis port */
#define DAC_INVCLK P3_5 /* DAC Clock select: 256fs-384fs */
#define DAC_SF0 P2_7
#define DAC_SF1 P2_5
#define DAC_NB_BIT 20 /* 20-bit DAC */
// DAC in L3 mode
#define DAC_TEST DAC_MUTE
#define DAC_L3CLOCK DAC_DEEM
#define DAC_L3MODE DAC_SF0
#define DAC_L3DATA DAC_SF1
#define DAC_L3I_ADDR 3
/* ADC */
#define AD_CLOCK (FPER / F_CONV_MAX / 2) /* ADC clock divider */
#define BATTERY_CHANNEL (AIN0) /* battery: ADC input 0 */
#define VOICE_CHANNEL (AIN1) /* voice: ADC input 1 */
/* Enable USB */
#define ENA_USB P3_0
/* Shutdown MIC */
#define SHUT_MIC P5_2
/* Shutdown POWER */
#define SHUT_PWR P3_1
/* NAND Flash (NF extended version) */
#define NF_64
#define NF_IDLE_STATE_ADD 0xF9 /* memory selected */
#define NF_ADD_LATCH_ENABLE_ADD 0xF300 /* Address Latch Enable Address */
#define NF_CMD_LATCH_ENABLE_ADD 0xF500 /* Command Latch Enable Address */
#define NF_ADDRESS_CMD_DATA 0xF100 /* Command / Data Address register */
#define NF_RD_BUSY P2_4
#define Nf_CS_ON() (P2_3 = 0)
#define Nf_CS_OFF() (P2_3 = 1)
#define FLASH_WP P2_0
/* Key Definition */
#define KEY_FUNC KEY_0_0 /* 02h Function select */
#define KEY_VALID KEY_0_1 /* 0Ah Stop select */
#define KEY_PLUS KEY_1_0 /* 01h + */
#define KEY_MINUS KEY_1_1 /* 09h - */
#define KEY_SOUND 0xE0 /* sound select */
#define KEY_MEM 0xE1 /* memory select */
#define KEY_SPARE 0xE2 /* */
#define KEY_REPEAT 0xE3 /* repeat set / unset */
#define KEY_PARENT 0xe4 /* parent directory */
#define KEY_INC 0xBF /* + */
#define KEY_PREV 0xE6 /* Previous */
#define KEY_NEXT 0xE7 /* Next */
#define KEY_PLAY 0xE8 /* Play or enter directory */
#define KEY_PAUSE 0xE9 /* Pause */
#define KEY_ENTER 0xEA /* Enter in menu */
#define KEY_DEC 0xEF /* - */
#define KEY_REC 0xEC /* Record */
#define KEY_STOP 0xED /* Stop */
#define KEY_MODE 0xED /* Mode */
/*_____ D E F I N I T I O N ________________________________________________*/
/*_____ D E C L A R A T I O N ______________________________________________*/
#endif /* _BOARD_H_ */
