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標題: MCU輪巡檢測程序 [打印本頁]

作者: Resandom 時間: 2019-12-10 18:20
標題: MCU輪巡檢測程序

.globl _start

_start:

//設置開機鍵按下后運行程序

ldr r0, =0x1002330c

ldr r1,[r0]

orr r1,r1,#0x300

str r1,[r0]

// 關閉看門狗

ldr r0, =0x10060000

mov r1, #0

str r1, [r0]

// 設置棧，以便調用c函數

ldr sp, =0x02060000

// 調用c函數

bl main

halt:

b halt

key.c

#define GPM1CON (*(volatile unsigned long *) 0x11000280)

#define GPM1DAT (*(volatile unsigned long *) 0x11000284)

#define GPX1CON (*(volatile unsigned long *) 0x11000C20)

#define GPX1DAT (*(volatile unsigned long *) 0x11000C24)

#define GPX2CON (*(volatile unsigned long *) 0x11000C40)

#define GPX2DAT (*(volatile unsigned long *) 0x11000C44)

static void GPIO_Init(void)

{

/*LED_INIT*/

GPM1CON &= ( ~(0xF << 16));

GPM1CON |= (0x1 << 16);

GPM1DAT &= 0x0;

GPX1CON &= ( ~(0xF << 12));

GPX1CON |= (0x1 << 12);

GPX1DAT &= 0x0;

//GPX2CON &= ( ~(0xF << 8));

//GPX2CON |= (0x1 << 8);

//GPX2DAT |= (0x1 << 2);

/*KEY_INIT*/

GPX2CON &= ~0xFF;

GPX2CON |= 0x00;

GPX2CON &= ( ~(0xFF <<16));

GPX2CON |= (0x00 << 16);

GPX2DAT &= 0x0;

}

void delay(int time)

{

while (time--)

;

}

int main(void)

{

unsigned char keyValue1 ;

unsigned char keyValue2 ;

GPIO_Init();

while(1)

{

keyValue1 = GPX2DAT;

keyValue1 &= (~(0xFF << 2));

keyValue2 = GPX2DAT >> 4;

keyValue2 &= (~(0xFF << 2));

switch(keyValue1){

case 0x01:

GPM1DAT |= (0x1 << 4);

GPX1DAT |= (0x1 << 3);

break;

case 0x02:

GPM1DAT |= (0x1 << 4);

break;

default :

GPM1DAT &= ~(0x1 << 4);

GPX1DAT &= ~(0x1 << 3);

break;

}

switch(keyValue2){

case 0x01:

GPM1DAT |= (0x1 << 4);

GPX1DAT &= ~(0x1 << 3);

delay(0x10000);

GPX1DAT |= (0x1 << 3);

GPM1DAT &= ~(0x1 << 4);

delay(0x10000);

break;

case 0x02:

GPX1DAT |= (0x1 << 3);

break;

default :

GPM1DAT &= ~(0x1 << 4);

GPX1DAT &= ~(0x1 << 3);

break;

}

return 0;

}

作者: admin 時間: 2019-12-10 23:01
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