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標題: keil編譯錯誤3.1.c(13): error C247: non-address/-constant initializer怎么解決呢 [打印本頁]

作者: 今晚早點睡____ 時間: 2023-10-18 22:24
標題: keil編譯錯誤3.1.c(13): error C247: non-address/-constant initializer怎么解決呢
#include <reg52.h>

unsigned char code digitOptions[] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x00};
unsigned char num[2]; // Define an array for display
unsigned char minutes = 99;
unsigned char seconds = 0; // Initialize seconds to 0
#define START_BUTTON_STATE 0x20  // P3^5
#define STOP_BUTTON_STATE 0x40 // P3^6
#define RESET_BUTTON_STATE 0x80  // P3^7
bit startButton = START_BUTTON_STATE;
bit stopButton = STOP_BUTTON_STATE;
bit resetButton = RESET_BUTTON_STATE;
bit buzzer = P1^4;
sbit w1 = P1^0;
sbit w2 = P1^1;
unsigned char menu = 0;
bit flag = 0;

void delay(unsigned int z) {
unsigned int i, j;
for (i = 0; i < z; i++) {
      for (j = 0; j < 621; j++) {
      }
}
}

void Timer0Init() {
TMOD = 0x01;  // Use Timer 0 in mode 1
TH0 = 0xFC; // Initialize timer values for a 50ms delay
TL0 = 0x67;
ET0 = 1;    // Enable Timer 0 interrupt
TR0 = 0;    // Start Timer 0
EA = 1;    // Enable global interrupts
}

void display() {
num[0] = seconds % 10;
num[1] = seconds / 10;

if (menu == 1) {
      if (flag == 0) {
         num[0] = 10;
         num[1] = 10;
      }
}

w1 = 1;
w2 = 0;
P2 = digitOptions[num[0]];
delay(1);
w1 = w2 = 1;
w1 = 0;
w2 = 1;
P2 = digitOptions[num[1]];
delay(1);
w1 = w2 = 1;
}

void key() {
if (startButton == 0) {
      while (startButton == 0);
      menu++;
      if (menu == 1) {
         TR0 = 1;
      }
      if (menu == 2) {
         TR0 = 0;
         menu = 0;
      }
}

if (menu == 1) {
      if (stopButton == 0) {
         while (stopButton == 0);
         seconds++;
         if (seconds > 99) seconds = 99;
      }

      if (resetButton == 0) {
         while (resetButton == 0);
         seconds--;
         if (seconds < 0) seconds = 0;
      }
}
}

void main() {
Timer0Init();

while (1) {
      key();
      display();
      if (menu == 0) {
         if (stopButton == 0) {
            while (stopButton == 0);
            if (seconds > 0) {
                  TR0 = 1;
            }
         }
         if (resetButton == 0) {
            while (resetButton == 0);
            TR0 = 0;
            seconds = 0;
         }
      }
}
}

void Timer0_ISR() interrupt 1 {
TH0 = 0xFC;
TL0 = 0x67;
flag++;
if (flag == 10) {
      flag = 0;
      seconds--;
      if (seconds == 0) {
         TR0 = 0;
      }
}
}

作者: liucan2020 時間: 2023-10-18 23:30
#define START_BUTTON_STATE 0x20 下面又把START_BUTTON_STATE 賦值給了sbit類型？？？

作者: sttt300 時間: 2023-10-19 09:10
bit buzzer = P1^4;
改為 sbit buzzer = P1^4;
另外flag定義為bit類型，flag就只能是0或1兩個數了，下面的flag++，flag==10都是錯的了
所以要bit flag改為unsigned char或int類型

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