Error: expression syntax

[traxex]

Hi. I'm using pic16f877. When i try to build project with this code, i get an error saying expression syntax where there is "PORTA=i". What does that mean? What is the mistake?

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Code C - [expand]
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#include <pic.h>
#include <delay.c>
main(void)
{
    unsigned char sequence[40];
    unsigned char i,a,column;
    signed int slide,value;
    unsigned const char text[]={
    0x00,0x00,0x1E,0x03,0x7E,0xCC,0x76,0x00, //a
    0x00,0x00,0x66,0x3B,0x33,0x60,0xC0,0x00,
    0x00,0x00,0x1E,0x33,0x60,0x66,0x3C,0x10,
    0x00,0x00,0x3E,0x63,0xFE,0xC0,0x78,0x00,
    0x0C,0x0C,0x18,0x18,0x30,0x30,0x70,0x00,
    0x06,0x00,0x18,0x18,0x30,0x30,0x60,0x00,
    0x18,0x18,0x33,0x36,0x7C,0x66,0xC3,0x00};
    column=50;
    TRISB=0;
    TRISA=0;
    ADCON1=0x07;
    PORTB=0x00;
    for(;;){
        for(i=0;i<=39;i++){
        sequence[i]=0;
        }
    for(slide=-38;slide<=column;slide++){
    for(i=0;i<=39;i++){
        value=i+slide;
        if(value<0)sequence[i]=0;
        if(value>=0&&value<=column-1)
        sequence[i]=text[value];
        if(value>column)sequence[i]=0;
        }
    for(a=0;a<40;a++){
        for(i=0;i<=15;i++){
            PORTB=sequence[i]
            PORTA=i;
            DelayUs(200);
            }}}
            }
            }

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[alexan_e]

You forgot the semicolon in the previous line
PORTB=sequence;

Alex

 

[bigdogguru]

Hi. I'm using pic16f877. When i try to build project with this code, i get an error saying expression syntax where there is "PORTA=i". What does that mean? What is the mistake?

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Code C - [expand]
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#include <pic.h>
#include <delay.c>
main(void)
{
    unsigned char sequence[40];
    unsigned char i,a,column;
    signed int slide,value;
    unsigned const char text[]={
    0x00,0x00,0x1E,0x03,0x7E,0xCC,0x76,0x00, //a
    0x00,0x00,0x66,0x3B,0x33,0x60,0xC0,0x00,
    0x00,0x00,0x1E,0x33,0x60,0x66,0x3C,0x10,
    0x00,0x00,0x3E,0x63,0xFE,0xC0,0x78,0x00,
    0x0C,0x0C,0x18,0x18,0x30,0x30,0x70,0x00,
    0x06,0x00,0x18,0x18,0x30,0x30,0x60,0x00,
    0x18,0x18,0x33,0x36,0x7C,0x66,0xC3,0x00};
    column=50;
    TRISB=0;
    TRISA=0;
    ADCON1=0x07;
    PORTB=0x00;
    for(;;){
        for(i=0;i<=39;i++){
        sequence[i]=0;
        }
    for(slide=-38;slide<=column;slide++){
    for(i=0;i<=39;i++){
        value=i+slide;
        if(value<0)sequence[i]=0;
        if(value>=0&&value<=column-1)
        sequence[i]=text[value];
        if(value>column)sequence[i]=0;
        }
    for(a=0;a<40;a++){
        for(i=0;i<=15;i++){
            PORTB=sequence[i][COLOR="#FF0000"]; //missing semicolon[/COLOR]
            PORTA=i;
            DelayUs(200);
            }}}
            }
            }

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Actually, the line above is missing the semicolon, which is causing the compiler error.

PORTB=sequence; //missing semicolon
PORTA=i;

I just glanced at your code, so there maybe other syntax errors.

 

[traxex]

Hah, thanks!