init.lis

avr单片机与flash存储器通信程序,调试通过,希望对大家有所帮助.

                        .module init.c
                        .area text(rom, con, rel)
 0000                   .dbfile C:\ATMega8515\SPI\init.c
 0000                   .dbfunc e port_init _port_init fV
                        .even
 0000           _port_init::
 0000                   .dbline -1
 0000                   .dbline 9
 0000           ; //ICC-AVR application builder : 2006-4-27 13:50:28
 0000           ; // Target : M8515
 0000           ; // Crystal: 11.059Mhz
 0000           ; 
 0000           ; #include <iom8515v.h>
 0000           ; #include <macros.h>
 0000           ; #include"ForATmega8515.h"
 0000           ; void port_init(void)
 0000           ; {
 0000                   .dbline 10
 0000           ;  PORTA = 0x00;
 0000 2224              clr R2
 0002 2BBA              out 0x1b,R2
 0004                   .dbline 11
 0004           ;  DDRA  = 0x00;
 0004 2ABA              out 0x1a,R2
 0006                   .dbline 12
 0006           ;  PORTB = 0x00;
 0006 28BA              out 0x18,R2
 0008                   .dbline 13
 0008           ;  DDRB  = 0xBF;
 0008 8FEB              ldi R24,191
 000A 87BB              out 0x17,R24
 000C                   .dbline 14
 000C           ;  PORTC = 0x00;
 000C 25BA              out 0x15,R2
 000E                   .dbline 15
 000E           ;  DDRC  = 0x00;
 000E 24BA              out 0x14,R2
 0010                   .dbline 16
 0010           ;  PORTD = 0x00;
 0010 22BA              out 0x12,R2
 0012                   .dbline 17
 0012           ;  DDRD  = 0x00; 
 0012 21BA              out 0x11,R2
 0014                   .dbline 18
 0014           ;  PORTE = 0x00;
 0014 27B8              out 0x7,R2
 0016                   .dbline 19
 0016           ;  DDRE  = 0x00; 
 0016 26B8              out 0x6,R2
 0018                   .dbline -2
 0018           L1:
 0018                   .dbline 0 ; func end
 0018 0895              ret
 001A                   .dbend
 001A                   .dbfunc e spi_init _spi_init fV
                        .even
 001A           _spi_init::
 001A                   .dbline -1
 001A                   .dbline 25
 001A           ; }
 001A           ; 
 001A           ; //SPI initialize
 001A           ; // clock rate: 5529498hz
 001A           ; void spi_init(void)
 001A           ; {
 001A                   .dbline 26
 001A           ;  SPCR = 0xFC; //setup SPI
 001A 8CEF              ldi R24,252
 001C 8DB9              out 0xd,R24
 001E                   .dbline -2
 001E           L2:
 001E                   .dbline 0 ; func end
 001E 0895              ret
 0020                   .dbend
                        .area vector(rom, abs)
                        .org 16
 0010 10C0              rjmp _spi_stc_isr
                        .area text(rom, con, rel)
 0020                   .dbfile C:\ATMega8515\SPI\init.c
 0020                   .dbfunc e spi_stc_isr _spi_stc_isr fV
                        .even
 0020           _spi_stc_isr::
 0020 0A92              st -y,R0
 0022 0FB6              in R0,0x3f
 0024 0A92              st -y,R0
 0026                   .dbline -1
 0026                   .dbline 31
 0026           ; }
 0026           ; 
 0026           ; #pragma interrupt_handler spi_stc_isr:9
 0026           ; void spi_stc_isr(void)
 0026           ; {
 0026                   .dbline 33
 0026           ;  //byte in SPDR has been sent/received
 0026           ;  PORTB|=SS;           //锁存数据
 0026 C49A              sbi 0x18,4
 0028                   .dbline 34
 0028           ;  PORTB&=~SS;    
 0028 C498              cbi 0x18,4
 002A                   .dbline -2
 002A           L3:
 002A 0990              ld R0,y+
 002C 0FBE              out 0x3f,R0
 002E 0990              ld R0,y+
 0030                   .dbline 0 ; func end
 0030 1895              reti
 0032                   .dbend
 0032                   .dbfunc e init_devices _init_devices fV
                        .even
 0032           _init_devices::
 0032                   .dbline -1
 0032                   .dbline 39
 0032           ; }
 0032           ; 
 0032           ; //call this routine to initialize all peripherals
 0032           ; void init_devices(void)
 0032           ; {
 0032                   .dbline 41
 0032           ;  //stop errant interrupts until set up
 0032           ;  CLI(); //disable all interrupts
 0032 F894              cli
 0034                   .dbline 42
 0034           ;  port_init();
 0034 E5DF              rcall _port_init
 0036                   .dbline 43
 0036           ;  spi_init();
 0036 F1DF              rcall _spi_init
 0038                   .dbline 45
 0038           ; 
 0038           ;  MCUCR = 0x00;
 0038 2224              clr R2
 003A 25BE              out 0x35,R2
 003C                   .dbline 46
 003C           ;  EMCUCR = 0x00;
 003C 26BE              out 0x36,R2
 003E                   .dbline 47
 003E           ;  GICR = 0x00;
 003E 2BBE              out 0x3b,R2
 0040                   .dbline 48
 0040           ;  TIMSK = 0x00;
 0040 29BE              out 0x39,R2
 0042                   .dbline 49
 0042           ;  SEI(); //re-enable interrupts
 0042 7894              sei
 0044                   .dbline -2
 0044           L4:
 0044                   .dbline 0 ; func end
 0044 0895              ret
 0046                   .dbend