nrf_s.asm.bak

2401汇编语言编写的收发程序包括了初始化

#include <w77e58.h>

Data_I  BIT P1.2
CLK BIT P1.3
CS  BIT P1.5
CE  BIT P1.4
D_Out   BIT P3.4
Dr1 BIT P3.2

UART0_DATA EQU 0100H  ;测试 1K SRAM
UART1_DATA EQU 0200H
UART2_DATA EQU 0000H
DEC_DPTR MACRO
     db 0a5h
     ENDM

    org     0000
    ljmp    main 
    org     0003h
    ljmp    rx_byte
    org 000BH
    ljmp    time
    ORG     0023H
    AJMP    S_T0

    ORG     100H
          
main:
    MOV     SP,#5FH          ;初始化堆栈
        
build_word:
    mov     47h,#08h
    mov     48h,#08h
    mov     49h,#1ch
    mov     4ah,#50h
    mov     4bh,#10h
    mov     4ch,#00h;
    mov     4dh,#0CCh
    mov     4eh,#0CCh
    mov     4fh,#0CCh
    mov     50h,#0CCh 
    mov     51h,#00h;以channel 1
    mov     52h,#00h
    mov     53h,#00h
    mov     54h,#00h
    mov     55h,#00h
    mov     56h,#23h;前六位为地址位数,后为CRC使能
    mov     57h,#6Fh;one channel recv,in shockburst mode,250kbps
    mov     58h,#29h;以上用于2401初使化,发送
    clr     P3.3

    mov     59h,#00h;time_flag
    mov     60h,#08h;ID_L
    mov     61h,#08h;ID_H
    mov     62h,#1ch;Soft_V_L
    mov     63h,#50h;Soft_V_H
    mov     64h,#00h;型号_L
    mov     65h,#00h;型号_H
    mov     66h,#00h;TIME_L
    mov     67h,#00h;TIME
    mov     68h,#00h;TIME
    mov     69h,#00h;TIME_H
    mov     6Ah,#00h;当前缓冲区头_L
    mov     6Bh,#00h;当前缓冲区头_H
    mov     6Ch,#00h;前一贞头_L
    mov     6DH,#00h;前一贞头_H
    mov     6Eh,#00h;当前缓冲区尾_L
    mov     6Fh,#00h;当前缓冲区尾_H
    mov     70h,#00h

    MOV     SCON,#01000000B ;串口0工作于方式1
    MOV     TMOD,#00100001B ;定时器T1设置为方式2作波特率发生器,定时器T0设置为方式1作波特率发生器
    MOV     TH0,#0E1H       
    MOV     TL0,#00H
    SETB    TR0             ;定时器T1开始运行