微機(jī)原理課程設(shè)計(jì)--電壓報(bào)警器-文庫吧
2025-01-01 13:36 本頁面
【正文】 信號使數(shù)碼管顯示相應(yīng)的電壓值，同時8行8列的點(diǎn)陣顯示“OK”。如果電壓值大于3V，8086會控制使得數(shù)碼管顯示“ERROR”、點(diǎn)陣顯示“！”。再者，工作在方式3的8253定器會產(chǎn)生一個不可中斷屏蔽信號來控制燈的閃爍和喇叭的鳴笛。五、 硬件電路圖 六、 程序代碼.model small.databuff db 4 dup(?) db 10d,11d,11d,12dtab db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh db 01111001b,00110001b,0000000bLEDA EQU 802HADC1 EQU 902HLEDD EQU 800HLEDC EQU 804HCOL EQU 802HROW EQU 300Htconctr equ 506htcon0 equ 500htcon1 equ 502htcon2 equ 504hc8 equ 10000000bc7 equ 01000000bc6 equ 00100000bc5 equ 00010000bc4 equ 00001000bc3 equ 00000100bc2 equ 00000010bc1 equ 00000001berrbuff db 01111001b,00110001b,00110001b,00111111b db 00110001b,00110001b,00111111b,00110001b db 00110001b,00111111b,00110001b,00000000b db 00111111b,00110001b,00000000b,00000000b db 00110001b,00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b,01111001b db 00000000b,00000000b,01111001b,00110001b db 00000000b,01111001b,00110001b,00110001berrstat db 00hkkk db 39。e39。.code setup_int macro int_irq,int_cs,int_ip push di push ds mov di,0 mov ds,di mov di,(int_irq)*4 mov word ptr ds:[di],int_ip mov word ptr ds:[di+2],int_cs pop ds pop di endm setup_ints macro int_irq,int_cs,int_ip setup_int int_irq,int_cs,
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