LPC2103 >> Assembly

Power-down

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參考資料：
1. pdf

暫存器



main.s

  .equ IODIR,        0xe0028008
  .equ IOCLR,        0xe002800c
  .equ IOSET,        0xe0028004
  .equ PINSEL0,      0xe002c000
  .equ EXTWAKE,      0xe01fc144
  .equ PCON,         0xe01fc0c0
  .equ VICIntEnable, 0xfffff010
 
  .text
  .align 2
  .global _start
_start:    b reset
_undef:    b .
_swi:      b .
_pabort:   b .
_dabort:   b .
_reserved: b .
_irq:      b .
_fiq:      b .
  
reset:
  ldr r0, =PINSEL0
  ldr r1, =(1 << 28)
  str r1, [r0]

  ldr r0, =EXTWAKE
  ldr r1, =0x02
  str r1, [r0]

  ldr r0, =VICIntEnable
  ldr r1, =(1 << 15)
  str r1, [r0]

  ldr r0, =IODIR
  ldr r1, =(1 << 22)
  str r1, [r0]
  
  ldr r0, =IOCLR
  ldr r1, =(1 << 22)
  str r1, [r0]

  ldr r0, =PCON
  ldr r1, =0x02
  str r1, [r0]

  ldr r0, =IOSET
  ldr r1, =(1 << 22)
  str r1, [r0]
  b .
  .end

完成

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