📄 main.asm
字号:
.include SPCE061A.inc
.RAM
.VAR DA_Data
.CODE
.PUBLIC _main
_main:
R1=0x00A0
[P_DAC_Ctrl]=R1
R1=0x0030 //24.576MHZ
[P_TimerA_Ctrl]=R1
R1=0xf7ff //
[P_TimerA_Data]=R1
R1=0xffff
[DA_Data]=R1
[P_DAC1]=R1
[P_DAC2]=R1
FIQ ON
?loop:
JMP ?loop
.TEXT
.PUBLIC _FIQ
_FIQ:
FIQ OFF
R1=[DA_Data]
R1^=0xffff
[DA_Data]=R1
[P_DAC1]=R1
[P_DAC2]=R1
FIQ ON
RETI
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