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AVRASM ver. 1.30 音符声.ASM Mon Oct 22 15:52:00 2001
;************* 应用笔记SLAVR14.ASM ************************
;*
;* 标题: 音符
;*最后更新日期: 2000.08.08
;*
;* 支援 E-mail: gzsl@sl.com.cn
;*
;* 描述
;* 用AVR 的I/O口发出1234567音符声
;* 作者: SL.
;*程序适用于所有单片机
;***************************************************************************
.include "8515def.inc" ;器件配置文件
;***************************************************************************
;* A P P L I C A T I O N N O T E F O R T H E A V R F A M I L Y
;*
;* Number :AVR000
;* File Name :"8515def.inc"
;* Title :Register/Bit Definitions for the AT90S8515
;* Date :99.01.28
;* Version :1.30
;* Support telephone :+47 72 88 43 88 (ATMEL Norway)
;* Support fax :+47 72 88 43 99 (ATMEL Norway)
;* Support E-mail :avr@atmel.com
;* Target MCU :AT90S8515
;*
;* DESCRIPTION
;* When including this file in the assembly program file, all I/O register
;* names and I/O register bit names appearing in the data book can be used.
;* In addition, the six registers forming the three data pointers X, Y and
;* Z have been assigned names XL - ZH. Highest RAM address for Internal
;* SRAM is also defined
;*
;* The Register names are represented by their hexadecimal address.
;*
;* The Register Bit names are represented by their bit number (0-7).
;*
;* Please observe the difference in using the bit names with instructions
;* such as "sbr"/"cbr" (set/clear bit in register) and "sbrs"/"sbrc"
;* (skip if bit in register set/cleared). The following example illustrates
;* this:
;*
;* in r16,PORTB ;read PORTB latch
;* sbr r16,(1<<PB6)+(1<<PB5) ;set PB6 and PB5 (use masks, not bit#)
;* out PORTB,r16 ;output to PORTB
;*
;* in r16,TIFR ;read the Timer Interrupt Flag Register
;* sbrc r16,TOV0 ;test the overflow flag (use bit#)
;* rjmp TOV0_is_set ;jump if set
;* ... ;otherwise do something else
;***************************************************************************
;***** Specify Device
.device AT90S8515
;***** I/O Register Definitions
.equ SREG =$3f
.equ SPH =$3e
.equ SPL =$3d
.equ GIMSK =$3b
.equ GIFR =$3a
.equ TIMSK =$39
.equ TIFR =$38
.equ MCUCR =$35
.equ TCCR0 =$33
.equ TCNT0 =$32
.equ OCR0 =$31
.equ TCCR1A =$2f
.equ TCCR1B =$2e
.equ TCNT1H =$2d
.equ TCNT1L =$2c
.equ OCR1AH =$2b
.equ OCR1AL =$2a
.equ OCR1BH =$29
.equ OCR1BL =$28
.equ ICR1H =$25
.equ ICR1L =$24
.equ WDTCR =$21
.equ EEARH =$1f
.equ EEARL =$1e
.equ EEDR =$1d
.equ EECR =$1c
.equ PORTA =$1b
.equ DDRA =$1a
.equ PINA =$19
.equ PORTB =$18
.equ DDRB =$17
.equ PINB =$16
.equ PORTC =$15
.equ DDRC =$14
.equ PINC =$13
.equ PORTD =$12
.equ DDRD =$11
.equ PIND =$10
.equ SPDR =$0f
.equ SPSR =$0e
.equ SPCR =$0d
.equ UDR =$0c
.equ USR =$0b
.equ UCR =$0a
.equ UBRR =$09
.equ ACSR =$08
;***** Bit Definitions
.equ INT1 =7
.equ INT0 =6
.equ INTF1 =7
.equ INTF0 =6
.equ TOIE1 =7
.equ OCIE1A =6
.equ OCIE1B =5
.equ TICIE1 =3
.equ TOIE0 =1
.equ TOV1 =7
.equ OCF1A =6
.equ OCF1B =5
.equ ICF1 =3
.equ TOV0 =1
.equ SRE =7
.equ SRW =6
.equ SE =5
.equ SM =4
.equ ISC11 =3
.equ ISC10 =2
.equ ISC01 =1
.equ ISC00 =0
.equ CS02 =2
.equ CS01 =1
.equ CS00 =0
.equ COM1A1 =7
.equ COM1A0 =6
.equ COM1B1 =5
.equ COM1B0 =4
.equ PWM11 =1
.equ PWM10 =0
.equ ICNC1 =7
.equ ICES1 =6
.equ CTC1 =3
.equ CS12 =2
.equ CS11 =1
.equ CS10 =0
.equ WDDE =4
.equ WDE =3
.equ WDP2 =2
.equ WDP1 =1
.equ WDP0 =0
.equ EEMWE =2
.equ EEWE =1
.equ EERE =0
.equ PA7 =7
.equ PA6 =6
.equ PA5 =5
.equ PA4 =4
.equ PA3 =3
.equ PA2 =2
.equ PA1 =1
.equ PA0 =0
.equ DDA7 =7
.equ DDA6 =6
.equ DDA5 =5
.equ DDA4 =4
.equ DDA3 =3
.equ DDA2 =2
.equ DDA1 =1
.equ DDA0 =0
.equ PINA7 =7
.equ PINA6 =6
.equ PINA5 =5
.equ PINA4 =4
.equ PINA3 =3
.equ PINA2 =2
.equ PINA1 =1
.equ PINA0 =0
.equ PB7 =7
.equ PB6 =6
.equ PB5 =5
.equ PB4 =4
.equ PB3 =3
.equ PB2 =2
.equ PB1 =1
.equ PB0 =0
.equ DDB7 =7
.equ DDB6 =6
.equ DDB5 =5
.equ DDB4 =4
.equ DDB3 =3
.equ DDB2 =2
.equ DDB1 =1
.equ DDB0 =0
.equ PINB7 =7
.equ PINB6 =6
.equ PINB5 =5
.equ PINB4 =4
.equ PINB3 =3
.equ PINB2 =2
.equ PINB1 =1
.equ PINB0 =0
.equ PC7 =7
.equ PC6 =6
.equ PC5 =5
.equ PC4 =4
.equ PC3 =3
.equ PC2 =2
.equ PC1 =1
.equ PC0 =0
.equ DDC7 =7
.equ DDC6 =6
.equ DDC5 =5
.equ DDC4 =4
.equ DDC3 =3
.equ DDC2 =2
.equ DDC1 =1
.equ DDC0 =0
.equ PINC7 =7
.equ PINC6 =6
.equ PINC5 =5
.equ PINC4 =4
.equ PINC3 =3
.equ PINC2 =2
.equ PINC1 =1
.equ PINC0 =0
.equ PD7 =7
.equ PD6 =6
.equ PD5 =5
.equ PD4 =4
.equ PD3 =3
.equ PD2 =2
.equ PD1 =1
.equ PD0 =0
.equ DDD7 =7
.equ DDD6 =6
.equ DDD5 =5
.equ DDD4 =4
.equ DDD3 =3
.equ DDD2 =2
.equ DDD1 =1
.equ DDD0 =0
.equ PIND7 =7
.equ PIND6 =6
.equ PIND5 =5
.equ PIND4 =4
.equ PIND3 =3
.equ PIND2 =2
.equ PIND1 =1
.equ PIND0 =0
.equ SPIE =7
.equ SPE =6
.equ DORD =5
.equ MSTR =4
.equ CPOL =3
.equ CPHA =2
.equ SPR1 =1
.equ SPR0 =0
.equ SPIF =7
.equ WCOL =6
.equ RXC =7
.equ TXC =6
.equ UDRE =5
.equ FE =4
.equ OR =3
.equ RXCIE =7
.equ TXCIE =6
.equ UDRIE =5
.equ RXEN =4
.equ TXEN =3
.equ CHR9 =2
.equ RXB8 =1
.equ TXB8 =0
.equ ACD =7
.equ ACO =5
.equ ACI =4
.equ ACIE =3
.equ ACIC =2
.equ ACIS1 =1
.equ ACIS0 =0
.def XL =r26
.def XH =r27
.def YL =r28
.def YH =r29
.def ZL =r30
.def ZH =r31
.equ RAMEND =$25F ;Last On-Chip SRAM Location
.equ XRAMEND =$FFFF
.equ E2END =$1FF
.equ FLASHEND=$FFF
.equ INT0addr=$001 ;External Interrupt0 Vector Address
.equ INT1addr=$002 ;External Interrupt1 Vector Address
.equ ICP1addr=$003 ;Input Capture1 Interrupt Vector Address
.equ OC1Aaddr=$004 ;Output Compare1A Interrupt Vector Address
.equ OC1Baddr=$005 ;Output Compare1B Interrupt Vector Address
.equ OVF1addr=$006 ;Overflow1 Interrupt Vector Address
.equ OVF0addr=$007 ;Overflow0 Interrupt Vector Address
.equ SPIaddr =$008 ;SPI Interrupt Vector Address
.equ URXCaddr=$009 ;UART Receive Complete Interrupt Vector Address
.equ UDREaddr=$00a ;UART Data Register Empty Interrupt Vector Address
.equ UTXCaddr=$00b ;UART Transmit Complete Interrupt Vector Address
.equ ACIaddr =$00c ;Analog Comparator Interrupt Vector Address
.org $0000
000000 c00f rjmp RESET
.org $0010
000010 e002 RESET: ldi r16,0x02
000011 bf0e out sph,r16
000012 e50f ldi r16,0x5f
000013 bf0d out spl,r16 ;设堆栈为0X025F
000014 ef0f ldi r16,0xff ;设口为输出状态
000015 bb0a out ddra,r16
000016 bb07 out ddrb,r16
000017 bb04 out ddrc,r16
000018 bb01 out ddrd,r16
000019 bb0b out porta,r16 ;关口,灭LED灯
00001a bb08 out portb,r16
00001b bb05 out portc,r16
00001c bb02 out portd,r16
00001d e220 ldi r18,0x20 ;设延时常数
00001e e011 ldi r17,0x01
00001f e630 ldi r19,0x60
000020 2f03 loop: mov r16,r19
000021 d008 rcall delay ;调用延时子程序
000022 2721 eor r18,r17 ;异或
000023 bb25 out portc,r18 ;输出AT90S8515的C口引脚
000024 954a dec r20 ;-1
000025 f7d1 brne loop ;R20不为0转,为0顺执
000026 5035 subi r19,0x05 ;R19减立即数
000027 313f cpi r19,0x1f ;R19与立即数比
000028 f7b9 brne loop ;R19不0为转
000029 cfe6 RJMP RESET
00002a 930f delay: push r16 ;2t
00002b 950a delay1: dec r16 ;1t
00002c f7f1 brne delay1 ;1t/2t
00002d 910f pop r16 ;2t
00002e 950a dec r16 ;1t
00002f f7d1 brne delay ;1t/2t
000030 9508 ret ;4t
Assembly complete with no errors.
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