Pls help me with these errors of my code

nguyenkhang.khang2019@gma · May 17, 2022

Hi guys . So right now am doing a project is: DS1307 RTC AVR atmega16 - Digital Clock (Use CodeVisionAVR)

But i have somes errors which is :
L490:Must declare first in block .

Can any one help me to undersatand where is wrong or what changes i should do?
Best regards

C:

/*******************************************************
This program was created by the
CodeWizardAVR V3.12 Advanced
Automatic Program Generator
© Copyright 1998-2014 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com

Project :
Version :
Date    : 18/05/2022
Author  :
Company :
Comments:


Chip type               : ATmega16
Program type            : Application
AVR Core Clock frequency: 8,000000 MHz
Memory model            : Small
External RAM size       : 0
Data Stack size         : 256
*******************************************************/
#include <mega16.h>
#include <delay.h>
#asm
     .equ __i2c_port=0x15 ;PORTC
     .equ __sda_bit=1
     .equ __scl_bit=0
#endasm
#include <i2c.h>
#include <ds1307.h>
#include <alcd.h>
#define MODE PINB.0
#define UP   PINB.1
#define DOWN PINB.2
#define OK   PINB.3
bit AP;
bit sb;
bit alarm_en;
unsigned int h_set=0,m_set=0;
unsigned char hour,min,sec,day,date,month,year,mode,h,No_date;
void display_day(unsigned char x) {
switch (x) {
 case 1 : lcd_putsf(" 2");
      break;
 case 2 : lcd_putsf(" 3");
      break;
 case 3 : lcd_putsf(" 4");
      break;
 case 4 : lcd_putsf(" 5");
      break;
 case 5 : lcd_putsf(" 6");
      break;
 case 6 : lcd_putsf(" 7");
      break;
 case 7 : lcd_putsf(" 8");
      break;
 default:
 };
 }

void check_conveter_day(void){
if (day ==8) day=1;
if  (day ==0) day=7;
rtc_set_date(day, date,month,year);
}

 void check_conveter_hour(void){
 if (AP==0){
    if (hour > 12) h = hour-12;
      else h=hour;
      }
 else h = hour;
 }

 //Ham time LCD
void display_time_lcd(unsigned char x,unsigned char y){
lcd_gotoxy(x,y);
lcd_putchar (48+h/10);//chuc
lcd_putchar (48+h%10);//donvi
lcd_putsf(":");
lcd_putchar    (48+min/10);
lcd_putchar    (48+min%10);
lcd_putsf (":");
lcd_putchar     (48+sec/10);
lcd_putchar     (48+sec%10);
if (alarm_en==1)  lcd_putsf("*");
 else lcd_putsf(" ") ;
}

void display_date_lcd(unsigned char x,unsigned char y)
{
lcd_gotoxy(x,y);
lcd_putchar (48+date/10);
lcd_putchar (48+date%10);
lcd_putsf("/");
lcd_putchar    (48+month/10);
lcd_putchar    (48+month%10);
lcd_putsf ("/");
lcd_putchar     (48+year/10);
lcd_putchar     (48+year%10);
display_day(day);
}


void display_hengio_lcd(unsigned char x, unsigned char y)
{
lcd_gotoxy(x,y);
lcd_putchar (48+h_set/10);
lcd_putchar (48+h_set%10);
lcd_putsf(":");
lcd_putchar (48+m_set/10);
lcd_putchar (48+m_set%10);
if (alarm_en == 1 ) lcd_putsf("*" );
 else lcd_putsf(" ");
 }

 //ham hien thi len LCD
 void display_lcd(void){
 lcd_gotoxy(0,0);
 lcd_putsf("Time: ");
 display_time_lcd(6,0);
 //hien thi date
 lcd_gotoxy(0,1);
 lcd_putsf("Date: ");
 display_date_lcd(6,1);
 }

 //kiemtra trang thai phim nhan
void status_button(void){
if (MODE&&UP&&DOWN&&OK&&sb){
 sb=0;
 }
 }

 //ham kiem tr so ngay trong thang
 void Ndate_in_month(void){
     if (month == 2 ){
        if (year%4 == 0) No_date =29;
           else No_date = 28 ;
           }
        else if (month ==1 || month ==3 || month ==5 || month ==7 || month ==8 || month ==10
         || month == 12 ) No_date = 31;
         else No_date = 30;
   }

//ham cai thoi gian bao thuc
void set_alarm_time (void){
  status_button();
  if ((OK == 0 ) && (sb ==0 )){
  AP = ~AP;
  sb =1 ;
  }
  status_button();
  if (MODE==0 && sb==0){
     if (mode == 9 ) {
     mode = 0;
     }
  else {
     mode++;
     }
     sb =1 ;
     }
  //mode=0
  if (mode == 0){
  lcd_gotoxy(0,0);
  lcd_putsf("DO AN 1 ");
  lcd_gotoxy(0,1);
  lcd_putsf("khang_minh");
  delay_ms (1000);
  mode++;
  }
  //mode=1
  if (mode==1){
  display_lcd();
  if((alarm_en == 1 )&& (hour == h_set) && (min == m_set)) {
     PORTB.4 = 1;
     status_button();
     if( OK == 0 &&  sb== 0 ){
     alarm_en = 0;
     sb =1 ;
     }
     }
  else {
     PORTB.4 = 0;
     }
  }
  //mode=2
     if (mode == 2){
     lcd_gotoxy(0,0);
     lcd_putsf("Set Hour: ");
     lcd_putsf("           ");
     display_time_lcd(5, 1);
     lcd_putsf(" ");
     status_button();
     if (UP == 0 && sb == 0){
      if (hour == 23) hour = 0;
        else hour++;
     rtc_set_time(hour,min,sec);
     sb = 1;
     }
  status_button();
  if (DOWN == 0 && sb == 0){
   if (hour ==0) hour = 23;
    else hour--;
    rtc_set_time(hour,min,sec);
    sb = 1;}
    }

    //mode=3
   if (mode == 3) {
     lcd_gotoxy(0,0);
     lcd_putsf("Set Minute : ");
     lcd_putsf("           ");
     display_time_lcd(5, 1);
     lcd_putsf(" ");
     status_button();
  if (UP == 0 && sb == 0){
      if (min == 59) min = 0;
        else min++;
     rtc_set_time(hour,min,sec);
     sb = 1;
     }

     status_button();
  if (DOWN == 0 && sb == 0){
   if (min ==0) min = 59;
    else min--;
    rtc_set_time(hour,min,sec);
    sb = 1;}
    }

    //mode4
    if (mode == 4) {
     lcd_gotoxy(0,0);
     lcd_putsf("Set Date: ");
     lcd_putsf("           ");
     display_date_lcd(6, 1);
     lcd_putsf(" ");
     Ndate_in_month();
     status_button();
  if (UP == 0 && sb == 0){
      if (day == 7) day = 1;
        else day++;
 // xac dinh ngay (date) khi chinh thu
  if (date == No_date){
    if (month == 12 ) {
       date =1; month =1 ; year++;
       }
    else {
       date =1 ; month++;
       }
       }
    else date++;
    rtc_set_date(day,date,month,year);
    sb=1;
    }
    status_button();
    if(DOWN == 0 && sb == 0){
      if (day == 1) day = 7 ;
        else day--;
      if (date ==1){
         if (month == 1){
             month = 12 ; date = 31 ;year--;
             }
         else {
         month--;
         Ndate_in_month();
         date = No_date;
         }
         }
         else date--;
         rtc_set_date(day, date,month,year);
         sb=1;
         }
         }
         //mode 5

    if (mode == 5){
    lcd_gotoxy(0,0);
    lcd_putsf("Set Month :");
    lcd_putsf("           ");
    display_date_lcd(6, 1);
    lcd_putsf(" ");
Ndate_in_month();
status_button();
if (UP == 0 && sb == 0) //phim UP duoc nhan
{
if (month == 12)
 {
  month =1;
  if (year == 99)
  year=0;
  else year++;
  }
else month++;
//xac dinh ngay khi chinh thang
if ( ( day + No_date%7) > 7)
 day = day + No_date%7 - 7;
else day = day + No_date%7;
Ndate_in_month(); //cap nhat so ngay toi da cua thang vua dat lai


if (date > No_date)
date = No_date; //vd ngay 31/3 phai chuyen thanh 30/4 thi nhan UP
rtc_set_date(day, date, month, year);
sb = 1;
//PORTB.1 = sb;
}

status_button();
if (DOWN == 0 && sb == 0)
{
 if (month == 1)
  {
   month = 12;
   if (year == 0)
   year=99;
   else year--;
  }
 else month--;
 Ndate_in_month(); //kiem tra, phai tinh theo so ngay cua thang truoc de xac dinh thu
 if (day < No_date%7)
 day = day - No_date%7 +7;
 else day = day - No_date%7;

 if(date > No_date)
 date=No_date;
//vd tu ngay 31/3 phai chuyen thanh 29/2 khi nhan DOWN

rtc_set_date(day, date, month, year);
sb = 1;
//PORTB.1 = sb;
}
}
//che do mode=6 (chinh nam)

if (mode == 6)
{
lcd_gotoxy(0,0);
lcd_putsf("Set Year: ");
lcd_putsf(" ");
display_date_lcd(6,1);
//lcd_putsf("")
Ndate_in_month();
status_button();
if (UP == 0 && sb == 0)
 {
 //phim UP duoc nhan
 //chinh ngay cua thang 2 khi chuyen tu nam nhau sang nam khong nhuan
 if ((year%4==0) && (month=2) && (date==29))
  { //ngay 29/2 nam nhuan
   date  = 28;
  }
//chinh thu khi nhan nut nam
 if (year%4 == 0 )
  { //nam nhuan
   if ((month == 1) || ((month == 2) && (date<29)))
   { if (day == 7) //ngaychunhat
     day = 2; //thu 3
     else day = day +2;
   }
   else day = day +1; //nam nhuan nhung thu chi tang 1 ngay
  }
 else day = day + 1; //khong phai nam nhuan
//chuyen nam
 if(year == 99)
   year = 0;
 else year++;
 rtc_set_date(day, date, month, year);
 sb = 1;
 //PORTB.1=sb;
}

status_button();
if (DOWN == 0 && sb == 0)
{ //chuyen nam
 if (year%4 == 0)
 { //nam nhuan
  if ((month > 2) || ((month == 2) && (date == 29)))
  {
    if (day == 1) //thu 2
       day = 6; //thu 8
    else day -= 2;
  }
  else day -= 1; //nam nhuan nhung thu chi lui 1 ngay
 }
 else day -= 1; //khong phai nam nhuan
//chinh ngay cua thang 2 khi chuyen tu nam nhuan sang nam khong nhuan

 if ((year%4 == 0) && (month == 2) && (date == 29))
 { //ngay 29/2 nam nhuan
  date=28;
 }
//chinh nam
 if (year == 0)
 year=99;
 else year--;
 rtc_set_date(day, date, month, year);
 sb = 1;
 //PORTB.1 = sb;
}

//che do mode=7 chinh gio trong che do hen gio
if (mode == 7)
{
 lcd_gotoxy(0,0);
 lcd_putsf("Alarm: ");
 display_hengio_lcd(8,0);
 lcd_gotoxy(0,1);
 lcd_putsf("Hour: ");
 lcd_gotoxy(8,1);
 lcd_putchar(h_set/10 + 48);
 lcd_putchar(h_set%10 + 48);
 lcd_putsf(" ");
 status_button();
 if ( UP == 0 && sb == 0)
 {
  if (h_set == 23)
  h_set = 0;
  else h_set++;
  sb = 1;
  //PORTB.1 = sb;
 }


 if (DOWN == 0 && sb == 0)
 {
 if (h_set == 0)
 h_set = 23;
 else h_set--;
 sb = 1; //PORTB.1 = sb;
 }
//status_button();
if (OK == 0 && sb == 0)
 {
alarm_en = ~alarm_en;
//xac nhan cai dat bao thuc alarm en = 1 (0) -> có (không có báo thuc)
//lcd_gotoxy(15,0); //lcd_putsf("*");

 sb = 1;
 }
}
//che do mode = 8 (chinh phut trong che do hen gio)
if (mode == 8)
{
 lcd_gotoxy(0,0);
 lcd_putsf ("Alarm:");
 display_hengio_lcd (8,0);
 lcd_gotoxy(0,1);
 lcd_putsf ("Minute:");
 lcd_gotoxy(8,1);
 lcd_putchar(m_set/10 + 48);
 lcd_putchar (m_set%10 + 48);
 lcd_putsf(" ");
 status_button();
 if (UP == 0 && sb == 0)
 {
  if (m_set == 59)
  m_set = 0;
  else m_set++;
  sb = 1;
//PORTB.1 = sb;
 }
//status_button();
  if (DOWN == 0 && sb == 0)
 {
  if (m_set == 0)
  m_set = 59;
  else m_set--;
  sb = 1;
// PORTB.1 = sb;
 }
//status_button();


if (OK == 0 && sb == 0)
 {
 alarm_en = ~alarm_en; //xac nhan cai dat xong bao thuc alarm en = 1 (0) -> có (khong co) bao thuc
  sb = 1;
 //PORTB.1 = sb;
 }
}


//Ham chinh



 void main(void){
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Funcl=In Func0=In
// State7=T State6=T State 55T State 4=T State 3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;

// Port B initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Funcl=Out Func0=Out
// State7=0 State6=0 State5=0 State 4=0 State 3=0 State2=0 Statel=0 State0=0
PORTB=0xEF; //1111_1111
DDRB=0x10; //1111_0000                                                                                                                                        void main(void) {


// Port C initialization
// Func7=Out Funcb=In Func5=In Func4=In Func3=In Func2=In Funcl=In Func0=In
// State7=0 State6=T State 55T State 4=T State 3=T State2=T Statel=T StateO=T
PORTC=0xFF;
DDRC=0x80; //1000_0000
// Port D initialization


// Func 7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Funcl=Out Func0=Out
// State7=0 State6=0 State 550 State 450 State 3=0 State2=0 Statel=0 State0=0
PORTD=0x00;
DDRD=0xFF;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OCO output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;

// Timer/Counter i initialization
// Clock source: System Clock
// Clock value: Timeri Stopped
// Mode: Normal top=0xFFFF
// OCA output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timeri Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off

TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock

// Clock value: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INTO: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;

// Timer (s)/Counter (s) Interrupt (s) initialization
TIMSK=0x00;
// USART initialization
// USART disabled
UCSRB=0x00;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// ADC initialization
// ADC disabled
ADCSRA=0x00;

// SPI initialization
// SPI disabled
SPCR=0x00;

// TWI initialization
// TWI disabled
TWCR=0x00;

// I2C Bus initialization

i2c_init();

// DS1307 Real Time Clock initialization
// Square wave output on pin SQW/OUT: Off
// SQW/OUT pin state: 0
rtc_init(0,0,0);

// Alphanumeric LCD initialization
// Connections specified in the
// Project Configure 1C Compiler Libraries | Alphanumeric LCD menu:
// RS - PORTD Bit o
// RD - PORTD Bit 1
// EN - PORTD Bit 2
// D4 - PORTD Bit 4
// D5 - PORTD Bit 5
// D6 - PORTD Bit 6
// D7 - PORTD Bit 7
// Characters/line: 16
lcd_init(16);

//cai dat mac dinh
rtc_set_time(0, 0, 0);
rtc_set_date(1, 16, 5, 16);
AP = 1; //mac dinh de che do la 24h
sb = 0; //mac dinh khong co nut bam
//alarm en = 0;
//PORTB.4 = 0;
while (1)
 {
// Place your code here
 rtc_get_time (&hour, &min,&sec); // Doc gio, phút, giay tu ds1307
 rtc_get_date(&day, &date, &month, &year); // Doc thu, ngay, thang, nam tu ds 1307
 check_conveter_day(); //kiem tra và kiem chuyen thu, che do gio ve dang chuan
 check_conveter_hour();
 status_button();
 set_alarm_time(); // goi ctc thuc hien cai dat
 //PORTB.0 = 0;
 }
}

Aussie Susan · May 18, 2022

Your mix of indenting and also brace styles makes it really hard to check you code.
The error at line 490 (and assuming your code is complete so the line numbers are correct) points to the 'void main(void)' function definition. In general C does not allow nested function definitions. Also some C compilers will not allow the definition of a variable (or whatever) except at the start of a block.
Therefore, looking at the function that precedes the 'main()' definition, that is 'void set_alarm_time(void)', and trying to match up the braces, I think you are missing at least one "}" - I may well have made a mistake but I think I found 2 missing "}"s in the blocks starting "if(mode == 3)" and "if(mode == 6)".
There are numerous layout styles that are in use but to make the code really readable (by you as much as anybody else) you need to pick (or be told to use) one and be consistent throughout.
Susan

Welcome to EDAboard.com

Pls help me with these errors of my code

nguyenkhang.khang2019@gma

Newbie

Aussie Susan

Advanced Member level 5

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