main.asm

利用PWM功能实现语音播放功能。本系统应用于Suplus SPMC65* Series上

;==================================================================================
; The information contained herein is the exclusive property of
; Sunplus Technology Co. And shall not be distributed, reproduced,
; or disclosed in whole in part without prior written permission.
;       (C) COPYRIGHT 2004   SUNPLUS TECHNOLOGY CO.                                  
;                   ALL RIGHTS RESERVED
; The entire notice above must be reproduced on all authorized copies.
;==================================================================================
										
;==================================================================================
;	Project Name	:	
;	Applied Body	:	SPMC65P2404A
;	Firmware version:
;	Programer		:
;	Date			:	2005-5-10
;	Description		:	play speech with PWM function 
;						
;	Hardware Connect:	
;	Link File		:	
;	IDE Version		: 	V1.6.5	
;	BODY Version	:	V1.0.0A
;==================================================================================

.SYNTAX  6502							;Process standard 6502 addressing syntax
.LINKLIST								;Generate linklist information
.SYMBOLS								;Generate symbolic debug information
;************************************************************************************
;*																					*
;*      System Register Define														*
;*																					*
;************************************************************************************

;************************************************************************************
.INCLUDE		SPMC65P2404A.inc					;Define all hardware,Registers and ports.		
;************************************************************************************

;************************************************************************************
;*																					*
;*      Data memory Define	                                                        *
;*																					*
;************************************************************************************
.PAGE0										;Define values in the range from 00h to FFh
;************************************************************************************
.DATA										;Define data storage section           

;************************************************************************************
;*																					*
;*      	 Program Area															*
;*																					*
;************************************************************************************
.CODE 
.INCLUDE		Access4096.asm                    
;************************************************************************************
;*																					*
;*      Power on Reset Process	                                                    *
;*																					*
;************************************************************************************
.PUBLIC		V_Reset
V_Reset:
		sei									;Disable interrupt
		ldx		#C_STACK_BOTTOM				;Initial stack pointer at $00FF
		txs									;Transfer to stack point
		jsr		F_ClrRAM					;clear the RAM		  
		jsr		F_SPR4096_Initial			;Initialize the timer and IO
L_MainLoop:		
		jsr		F_RdCtrl					;get the size of the speech file
		lda		#C_WDT_Clr
		sta		P_WDT_Clr					;clear watch-dog	
		jmp		L_MainLoop	
;************************************************************************************
;*																					*
;*      Interrupt Service Process                         	                        *
;*																					*
;************************************************************************************
V_IRQ: 
		pha
		txa
		pha
		tya
		pha
		lda		P_INT_Flag1
		and		#C_INT_T2OIF				;CAP3 INT?
		beq		?L_IRQ_Rts					;NO
		lda		#$FF
		sta		P_INT_Flag1		
		;--------------------------------------------------------	
		;CAP1 interrupt process service

		lda		#0							
		sta		P_TMR0_1_Ctrl0				;disable PWM
		lda		GB_Rd_Buf	  	
      	sta		P_TMR1_PWMDuty				;duty low byte 
      	lda		#C_T112B_PWM				;Set Timer1 is 12-bit PWM
		sta		P_TMR0_1_Ctrl0
		
		jsr		F_GetData					;get the speech resource from SPR4096
 		lda		#$FF
 		sec
 		sbc		GB_Rd_Buf	
 		sta		GB_Rd_Buf			     			
?L_IRQ_Rts:
		pla
		tay
		pla
		tax
		pla	  						
		rti 						           

V_NMI:
		rti
;************************************************************************************
;*																					*
;*      Interrupt Vector Table														*
;*																					*
;************************************************************************************
VECTOR		.SECTION
		DW		V_NMI						;Non-mask interrupt vector(no use)
		DW		V_Reset						;Reset vector
		DW		V_IRQ						;IRQ interrupt vector
;************************************************************************************
;*																					*
;*      End of Interrupt Vector Table												*
;*																					*
;************************************************************************************
.END