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- .syntax unified
- .set DELAY_INTERVAL,0x186004
- .set RCC_AHB1ENR,0x40023830
- .set GPIOD_MODER,0x40020C00
- .set GPIOD_OTYPER,0x40020C04
- .set GPIOD_OSPEEDR,0x40020C08
- .set GPIOD_PUPDR,0x40020C0C
- .set GPIOD_ODR,0x40020C14
- .global diody
- diody:
- turnON:
- LDR R1, =GPIOD_ODR
- LDR R0, [R1]
- ORR R0, #0xF000
- STR R0, [R1]
- LDR R2, =DELAY_INTERVAL
- delay1:
- CBZ R2, turnOFF
- SUBS R2, R2, #1
- B delay1
- turnOFF:
- LDR R1,=GPIOD_ODR
- LDR R0,[R1]
- AND R0,#0xFFFF0FFF
- STR R0,[R1]
- LDR R2,=DELAY_INTERVAL
- delay2:
- CBZ R2,delayDone
- SUBS R2,R2,#1
- B delay2
- delayDone:
- B turnON
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