[問題]8X8 LED點矩陣

看板Programming作者anliang.時間18年前 (2006/06/02 18:32)推噓0(0推 0噓 0→)

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能請各位大大幫忙嗎... 這是老師給我們的專題...0至9一直循環跑原本是在8051書上找的範例... 但我們老師要我把我自己焊的版子接到ARM7的膜版上... 我是設PORTA當輸出,PORTB當計數而PORTB接上74HC244再接到8*8LED 我自己寫的ARM指令組語都跑不出來,都只有左邊4條在跑而且是不規則的在跑以下是我寫的 equ PORTA_MUX, 0x09000000 equ PORTA_DATA, 0x09001600 equ PORTA_DIR, 0x09001604 equ PORTB_MUX, 0x09000004 equ PORTB_DIR, 0x0900160c equ PORTB_DATA, 0x09001608 set DELAY_LED, 0xfffff text global _start code 32 _start: start: ldr r0, =PORTB_DIR mov r1, #0 str r1, [r0] ldr r0, =PORTB_MUX ldr r1, =0x00000faa str r1, [r0] ldr r0, =PORTB_DATA mov r1, #0 str r1, [r0] ldr r0, =PORTA_MUX ldr r1, =0x3fff str r1, [r0] ldr r0, =PORTA_DIR mov r1, #0 str r1, [r0] k1: ldr r0, =PORTA_DATA mov r1, #0 str r1, [r0] ldr r1,=0x00000000 k2: ldr r0,=PORTB_DATA str r1,[r0] bl delay add r1,r1,#1 cmp r1,#7 ble k2 k3: ldr r0,=PORTB_DATA str r1,[r0] bl delay t1: mov r5,#0 mov r8,#0 mov r2 , #0 t2: cmp r2, #200 beq t4 mov r1,#0 mov r4,#0 t3: ldr r0,=PORTB_DATA adr r3,sel_table ldr r3,[r3,+r1,lsl #2] str r3,[r0] ldr r0,=PORTA_DATA adr r3,led_table add r4,r4,r8 ldr r3,[r3,+r4,lsl #2] str r3,[r0] bl delay cmp r1,#7 beq t2 add r1,r1,#1 add r4,r4,#1 add r2,r2,#1 b t3 t4: add r8,r8,#8 b t1 t5: ldr r0,=PORTA_DATA mov r3,#0xff str r3,[r0] stop: b k1 .align 4 led_table: word 0x000000ff,0x00000081,0x0000007e,0x0000007e,0x0000007e,0x00000081,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x0000007d,0x00000000,0x0000007f,0x000000ff,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x00000006,0x00000076,0x00000070,0x000000ff,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x00000076,0x00000076,0x00000000,0x000000ff,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x000000e0,0x000000ef,0x00000000,0x000000ef,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x00000070,0x00000076,0x00000006,0x000000ff,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x00000000,0x00000076,0x00000006,0x000000ff,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x000000f8,0x000000fe,0x00000000,0x000000ff,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x00000089,0x00000076,0x00000076,0x00000089,0x00000 0ff,0x000000ff, 0x000000ff,0x000000ff,0x00000070,0x00000076,0x00000000,0x000000ff,0x00000 0ff,0x000000ff, sel_table: word 0x00000000,0x00000001,0x00000002,0x00000003,0x00000004,0x00000005,0x000000 06,0x00000007 delay: ldr r0,=0xefff delay1: subs r0, r0, #1 bne delay1 mov pc, lr delaya: mov r0,#300 delay2: subs r0,r0,#1 bne delay2 mov pc,lr .end -- ┌╗┬─ Origin：《Ψ義守觀山風情Ψ》<bbs.isu.edu.tw> ─┬╖╔╗ ╚┘╙─ From ：義守大學宿舍區 ──────────╛└╝╝