?? sysinit.s
字號:
INCLUDE option.inc
INCLUDE memcfg.inc
INCLUDE 2410addr.inc
INCLUDE vector.s
; AREA reset, CODE, READONLY
; EXPORT InitSystem
InitSystem
ldr r0,=WTCON ;watch dog disable
ldr r1,=0x0
str r1,[r0]
ldr r0,=INTMSK
ldr r1,=0xffffffff ;all interrupt disable
str r1,[r0]
ldr r0,=INTSUBMSK
ldr r1,=0x3ff ;all sub interrupt disable
str r1,[r0]
;To reduce PLL lock time, adjust the LOCKTIME register.
ldr r0,=LOCKTIME
ldr r1,=0xffffff
str r1,[r0]
[ PLL_ON_START
;Configure MPLL
ldr r0,=MPLLCON
ldr r1,=((M_MDIV<<12)+(M_PDIV<<4)+M_SDIV) ;Fin=12MHz,Fout=50MHz
str r1,[r0]
]
ldr r0, =CLKCON
ldr r1, =0xffff0
str r1, [r0] ;ㄏ
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