ARM 汇编点亮LED灯

汇编点亮LED1

.text 
.global _start
_start: 
	/**********LED1点灯LED1----->PE10/
LED1_INIT:
	/**************RCC章节*************/
	@1.通过RCC_MP_AHB4ENSETR寄存器设置GPIOE时钟使能 0x50000A28[4] = 1
	ldr r0,=0x50000A28
	ldr r1,[r0]
	orr r1,r1,#(0x1 << 4)
	str r1,[r0]

	/**************GPIO章节************/
	@1.通过GPIOE_MODER寄存器设置PE10引脚为输出模式 0x50006000[21:20] = 01
	ldr r0,=0x50006000
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<20))
	orr r1,r1,#(0x1<<20)
	str r1,[r0]	

	@2.通过GPIOE_OTYPER寄存器设置PE10引脚为推晚输出模式 0x50006004[10] = 0
	ldr r0,=0x50006004
	ldr r1,[r0]
	and r1,r1,#(~(0x1<<10))
	str r1,[r0]
	
	@3.通过GPIOE_OSPEEDR寄存器设置PE10引脚为低速输出模式 0x50006008[21:20] = 00
	ldr r0,=0x50006008
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<20))
	str r1,[r0]

	@4.通过GPIOE_PUPDR寄存器设置PE10引脚禁止上下拉电阻 0x5000600C[21:20] = 00
	ldr r0,=0x5000600c
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<20))
	str r1,[r0]
	
loop:

LED1_ON:
	@1.通过GPIOE_ODR寄存器设置PE10引脚输出高电平 0x50006014[10] = 1
	ldr r0,=0x50006014
	ldr r1,[r0]
	orr r1,r1,#(0x1<<10)
	str r1,[r0]
	bl delay_1s

LED1_OFF:
	@1.通过GPIOE_ODR寄存器设置PE10引脚输出低电平 0x50006014[10] = 0
	ldr r0,=0x50006014
	ldr r1,[r0]
	and r1,r1,#(~(0x1<<10))
	str r1,[r0]
	bl delay_1s
	b loop

@ 大概1s的延时函数
delay_1s:
	mov r3, #0x10000000
	mm:
	cmp r3, #0
	subne r3, r3, #1
	bne mm
	mov pc, lr

.end

结果演示

汇编点亮LED3

.text 
.global _start
_start: 
	/**********LED1点灯LED1----->PE10/
LED1_INIT:
	/**************RCC章节*************/
	@1.通过RCC_MP_AHB4ENSETR寄存器设置GPIOE时钟使能 0x50000A28[4] = 1
	ldr r0,=0x50000A28
	ldr r1,[r0]
	orr r1,r1,#(0x1 << 4)
	str r1,[r0]

	/**************GPIO章节************/
	@1.通过GPIOE_MODER寄存器设置PE10引脚为输出模式 0x50006000[17:16] = 01
	ldr r0,=0x50006000
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<16))
	orr r1,r1,#(0x1<<16)
	str r1,[r0]	

	@2.通过GPIOE_OTYPER寄存器设置PE10引脚为推晚输出模式 0x50006004[8] = 0
	ldr r0,=0x50006004
	ldr r1,[r0]
	and r1,r1,#(~(0x1<<8))
	str r1,[r0]
	
	@3.通过GPIOE_OSPEEDR寄存器设置PE10引脚为低速输出模式 0x50006008[17:16] = 00
	ldr r0,=0x50006008
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<16))
	str r1,[r0]

	@4.通过GPIOE_PUPDR寄存器设置PE10引脚禁止上下拉电阻 0x5000600C[17:16] = 00
	ldr r0,=0x5000600c
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<16))
	str r1,[r0]
	
loop:

LED1_ON:
	@1.通过GPIOE_ODR寄存器设置PE10引脚输出高电平 0x50006014[8] = 1
	ldr r0,=0x50006014
	ldr r1,[r0]
	orr r1,r1,#(0x1<<8)
	str r1,[r0]
	bl delay_1s

LED1_OFF:
	@1.通过GPIOE_ODR寄存器设置PE10引脚输出低电平 0x50006014[8] = 0
	ldr r0,=0x50006014
	ldr r1,[r0]
	and r1,r1,#(~(0x1<<8))
	str r1,[r0]
	bl delay_1s
	b loop

@ 大概1s的延时函数
delay_1s:
	mov r3, #0x10000000
	mm:
	cmp r3, #0
	subne r3, r3, #1
	bne mm
	mov pc, lr

.end

演示结果：

汇编点亮LED2

.text 
.global _start
_start: 
	/**********LED1点灯LED1----->PE10/
LED1_INIT:
	/**************RCC章节*************/
	@1.通过RCC_MP_AHB4ENSETR寄存器设置GPIOF时钟使能 0x50000A28[5] = 1
	ldr r0,=0x50000A28
	ldr r1,[r0]
	orr r1,r1,#(0x1 << 5)
	str r1,[r0]

	/**************GPIO章节************/
	@1.通过GPIOF_MODER寄存器设置PE10引脚为输出模式 0x50007000[21:20] = 01
	ldr r0,=0x50007000
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<20))
	orr r1,r1,#(0x1<<20)
	str r1,[r0]	

	@2.通过GPIOF_OTYPER寄存器设置PE10引脚为推晚输出模式 0x50007004[10] = 0
	ldr r0,=0x50007004
	ldr r1,[r0]
	and r1,r1,#(~(0x1<<10))
	str r1,[r0]
	
	@3.通过GPIOF_OSPEEDR寄存器设置PE10引脚为低速输出模式 0x50007008[21:20] = 00
	ldr r0,=0x50007008
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<20))
	str r1,[r0]

	@4.通过GPIOF_PUPDR寄存器设置PE10引脚禁止上下拉电阻 0x5000700C[21:20] = 00
	ldr r0,=0x5000700c
	ldr r1,[r0]
	and r1,r1,#(~(0x3<<20))
	str r1,[r0]
	
loop:

LED1_ON:
	@1.通过GPIOF_ODR寄存器设置PE10引脚输出高电平 0x50007014[10] = 1
	ldr r0,=0x50007014
	ldr r1,[r0]
	orr r1,r1,#(0x1<<10)
	str r1,[r0]
	bl delay_1s

LED1_OFF:
	@1.通过GPIOF_ODR寄存器设置PE10引脚输出低电平 0x50007014[10] = 0
	ldr r0,=0x50007014
	ldr r1,[r0]
	and r1,r1,#(~(0x1<<10))
	str r1,[r0]
	bl delay_1s
	b loop

@ 大概1s的延时函数
delay_1s:
	mov r3, #0x10000000
	mm:
	cmp r3, #0
	subne r3, r3, #1
	bne mm
	mov pc, lr

.end

 结果演示：