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issue with array

 
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sliders_alpha



Joined: 03 Mar 2008
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issue with array
PostPosted: Sun Feb 08, 2009 8:40 am     Reply with quote
hello,

i must display time on a graphical LCD so o created big font.
i have a array wich is 800 long.

and why when i want to read array[256] my array is returning me array[0], or when i want to read array[257] i get array[1]

256,257, etc are stored in a "long" variable

this is my array :

Code:

const int8 font20x32[] = {
0x00,0x80,0xE0,0xF0,0xF8,0xF8,0xFC,0xFC,0x7E,0x3E,0x3E,0x7E,0xFC,0xFC,0xF8,0xF8,0xF0,0xE0,0x80,0x00, //0-1
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x00,0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00, //0-2
0x00,0x0F,0x3F,0x7F,0xFF,0xFF,0xFF,0xFC,0xF0,0xE0,0xE0,0xF0,0xFC,0xFF,0xFF,0xFF,0x7F,0x3F,0x0F,0x00, //0-3
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00, //0-4

0x00,0x00,0x80,0xC0,0xE0,0xE0,0xE0,0xF0,0xF8,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0x00,0x00,0x00,0x00,0x00, //1-1
0x00,0x00,0x0F,0x0F,0x07,0x07,0x02,0x02,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00, //1-2
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00, //1-3
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x00,0x00,0x00,0x00,0x00, //1-4

0x00,0xC0,0xE0,0xF0,0xF8,0xF8,0xFC,0xFC,0x7E,0x3E,0x3E,0x3E,0xFE,0xFC,0xFC,0xF8,0xF8,0xF0,0xE0,0x00, //2-1
0x00,0x01,0x03,0x07,0x07,0x07,0x87,0x83,0xC0,0xE0,0xF0,0xF8,0xFE,0xFF,0xFF,0x7F,0x7F,0x3F,0x1F,0x00, //2-2
0x00,0xC0,0xF8,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xF7,0xF3,0xF3,0xF1,0xF0,0xF0,0xF0,0xF0,0xF0,0x00, //2-3
0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x00, //2-3

0x00,0xC0,0xE0,0xF0,0xF8,0xF8,0xFC,0xFC,0x3E,0x3E,0x3E,0x7E,0xFC,0xFC,0xF8,0xF8,0xF0,0xE0,0x80,0x00, //3-1
0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x30,0x78,0x78,0x78,0x7E,0xFF,0xFF,0xFF,0xFF,0xEF,0xC7,0x01,0x00, //3-2
0x00,0x18,0x38,0x7C,0xFC,0xFC,0xFC,0xF8,0xF0,0xE0,0xE0,0xE0,0xF0,0xFF,0xFF,0xFF,0xFF,0xEF,0x0F,0x00, //3-3
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x03,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00, //3-4

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0xE0,0xF0,0xF8,0xFC,0xFE,0xFE,0xFE,0x00,0x00,0x00, //4-1
0x00,0x80,0xE0,0xF0,0xF8,0xFC,0x7E,0x3F,0x1F,0x0F,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00, //4-2
0x00,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x0F,0x0F,0x00, //4-3
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x00,0x00,0x00, //4-4

0x00,0x00,0xC0,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x00, //5-1
0x00,0x00,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x1C,0x1E,0x1E,0x1E,0x7E,0xFE,0xFE,0xFC,0xFC,0xF8,0xC0,0x00, //5-2
0x00,0x18,0x7C,0x7C,0xFC,0xFC,0xFC,0xF8,0xF0,0xE0,0xE0,0xE0,0xF8,0xFF,0xFF,0xFF,0x7F,0x3F,0x0F,0x00, //5-3
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x03,0x03,0x03,0x03,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00, //5-4

0x00,0x00,0xC0,0xE0,0xF0,0xF8,0xF8,0xFC,0x7C,0x3E,0x3E,0x3E,0xFE,0xFC,0xFC,0xF8,0xF8,0xF0,0x60,0x00, //6-1
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x78,0x3C,0x3C,0x3C,0x7C,0xF8,0xF9,0xF9,0xF9,0xF0,0xC0,0x00, //6-2
0x00,0x07,0x1F,0x7F,0x7F,0xFF,0xFF,0xFF,0xF0,0xE0,0xE0,0xE0,0xF0,0xFF,0xFF,0xFF,0xFF,0x7F,0x1F,0x00, //6-3
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00, //6-1

0x00,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0x7C,0x00, //7-1
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xF0,0xF8,0xFE,0xFF,0xFF,0x7F,0x1F,0x07,0x03,0x00,0x00,0x00, //7-2
0x00,0x00,0x00,0x00,0x00,0xF0,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xF3,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //7-3
0x00,0x00,0x00,0x00,0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //7-4

0x00,0xC0,0xE0,0xF0,0xF8,0xF8,0xFC,0xFC,0x7E,0x3E,0x3E,0x3E,0x7E,0xFC,0xFC,0xF8,0xF0,0xE0,0xC0,0x00, //8-1
0x00,0xC1,0xE7,0xFF,0xFF,0xFF,0xFF,0xFF,0x7E,0x3C,0x3C,0x7C,0xFE,0xFF,0xFF,0xFF,0xFF,0xE7,0xC1,0x00, //8-2
0x00,0x1F,0x7F,0xFF,0xFF,0xFF,0xFF,0xF8,0xF0,0xE0,0xE0,0xF0,0xF8,0xFF,0xFF,0xFF,0xFF,0x7F,0x3F,0x00, //8-3
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x03,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00, //8-4

0x00,0xC0,0xF0,0xF0,0xF8,0xF8,0xFC,0x7C,0x3E,0x3E,0x3E,0x7E,0xFC,0xFC,0xF8,0xF8,0xF0,0xE0,0x80,0x00, //9-1
0x00,0x3F,0x7F,0xFF,0xFF,0xFF,0xF8,0xF0,0xE0,0xE0,0xE0,0xF0,0x78,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00, //9-2
0x00,0x10,0x78,0x7C,0xFC,0xF9,0xF9,0xF9,0xF1,0xE1,0xE1,0xF0,0xFC,0xFF,0xFF,0xFF,0x7F,0x3F,0x0f,0x00, //9-3
0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 //9-4
};


and here is how i tried to read my array :

Code:


#include <16F877A.H>
#fuses HS, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock = 20000000)
#include <font20x32.c>

#DEFINE DB0 PIN_D0
#DEFINE DB1 PIN_D1
#DEFINE DB2 PIN_D2
#DEFINE DB3 PIN_D3
#DEFINE DB4 PIN_D4
#DEFINE DB5 PIN_D5
#DEFINE DB6 PIN_D6
#DEFINE DB7 PIN_D7
#DEFINE E PIN_E2
#DEFINE RW PIN_E1
#DEFINE RS PIN_E0

///////////////////////////////////////
void put_data(int8 data)              //
   {                                 //
   output_bit(DB0, !!(data & 1));    //decomposition d'un octet
   output_bit(DB1, !!(data & 2));    //a envoyer et placement
   output_bit(DB2, !!(data & 4));    //dur DB0 a DB7
   output_bit(DB3, !!(data & 8));    //
   output_bit(DB4, !!(data & 16));   //
   output_bit(DB5, !!(data & 32));   //
   output_bit(DB6, !!(data & 64));   //
   output_bit(DB7, !!(data & 128));  //
   delay_cycles(10);                 //
   }                                 //
///////////////////////////////////////

///////////////////////
void enable(void)    //validation
   {                 //
   output_low(E);    //
   delay_cycles(50); //
   output_high(E);   //creer une impulsion sur E
   delay_cycles(50); //
   output_low(E);    //
   }                 //
///////////////////////


void main(void) {
   long l;
   l = 240;
   while(l<321)
   {
   put_data(font20x32[l]);
   enable();
   delay_ms(1);
   l++;
   }
}



here is what i get :



do any of you know why i can't acces data wich are stored futher than 255?

thanks

CCS V4.057[/img]
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CCS V4.057

Last edited by sliders_alpha on Sun Feb 08, 2009 10:35 am; edited 1 time in total
FvM



Joined: 27 Aug 2008
Posts: 2337
Location: Germany

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PostPosted: Sun Feb 08, 2009 10:27 am     Reply with quote
If you try to set an explicite array size of 640, CCS C tells you data item too big, in other words, it don't support int8
arrays above 256 elements. An respective int32 array may be possibly a solution.
sliders_alpha



Joined: 03 Mar 2008
Posts: 55

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PostPosted: Sun Feb 08, 2009 10:34 am     Reply with quote
inded, well, it's still too big for int32.

i'm going to use four 255 array.

thanks
_________________
yup, i know, i don't speak english very well

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