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help me fix this MicroC pro code

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shahiranadira

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can anyone help me fix this code...i'm a newbie of microC..this is not my code..but i want to change it a bit..i just want to display words "WELCOME TO THE LAB" but the word won't display in my dot matrix LED...below is the original code. i'm using PIC16F887...i will insert the image of the circuit too

circuit.png

Code C - [expand]
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#define PIN_ST_CP      PORTC.F2   // RCLK ----> Pin 12 ST_CP
#define PIN_SH_CP      PORTC.F3  // SRCLK ---> Pin 11 SH_CP
#define PIN_SER_IN    PORTC.F5  // SER -----> Pin 14
//***********************columns of hc595**********************************
#define clock     PORTB.F0    //RCLK ----> Pin 11 ST_CP
#define latch     PORTB.F2   //RCLK ---> Pin 12 SH_CP
#define data      PORTB.F1  //SER -----> Pin 14
 
char s1[26];
long i;
 
const char  msg_default[50] = "Merry-Xmas and Happy New Year From supra";
const char ascii4[96][6] = {
    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },  // sp
    { 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 },   // !
    { 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 },   // "
    { 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 },   // #
    { 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 },   // $
    { 0x00, 0x23, 0x13, 0x08, 0x64, 0x62 },   // %
    { 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 },   // &
    { 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 },   // '
    { 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 },   // (
    { 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 },   // )
    { 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 },   // *
    { 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 },   // +
    { 0x00, 0x00, 0x00, 0x50, 0x30, 0x00 },   // ,
    { 0x00, 0x10, 0x10, 0x10, 0x10, 0x10 },   // -
    { 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 },   // .
    { 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 },   // /
    { 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E },   // 0
    { 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 },   // 1
    { 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 },   // 2
    { 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 },   // 3
    { 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 },   // 4
    { 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 },   // 5
    { 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 },   // 6
    { 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 },   // 7
    { 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 },   // 8
    { 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E },   // 9
    { 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 },   // :
    { 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 },   // ;
    { 0x00, 0x08, 0x14, 0x22, 0x41, 0x00 },   // <
    { 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 },   // =
    { 0x00, 0x00, 0x41, 0x22, 0x14, 0x08 },   // >
    { 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 },   // ?
    { 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E },   // @
    { 0x00, 0x7E, 0x11, 0x11, 0x11, 0x7E },   // A
    { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 },   // B
    { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 },   // C
    { 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C },   // D
    { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 },   // E
    { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 },   // F
    { 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A },   // G
    { 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F },   // H
    { 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 },   // I
    { 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 },   // J
    { 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 },   // K
    { 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 },   // L
    { 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F },   // M
    { 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F },   // N
    { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E },   // O
    { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 },   // P
    { 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E },   // Q
    { 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 },   // R
    { 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 },   // S
    { 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 },   // T
    { 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F },   // U
    { 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F },   // V
    { 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F },   // W
    { 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 },   // X
    { 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 },   // Y
    { 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 },   // Z
    { 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 },   // [
    { 0x00, 0x02, 0x04, 0x08, 0x10, 0x20 },   // back slash
    { 0x00, 0x00, 0x41, 0x41, 0x7f, 0x00 },   // ]
    { 0x00, 0x04, 0x02, 0x01, 0x02, 0x04 },   // ^
    { 0x00, 0x40, 0x40, 0x40, 0x40, 0x40 },   // _
    { 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 },   // '
    { 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 },   // a
    { 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 },   // b
    { 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 },   // c
    { 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F },   // d
    { 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 },   // e
    { 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 },   // f
    { 0x00, 0x0C, 0x52, 0x52, 0x52, 0x3E },   // g
    { 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 },   // h
    { 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 },   // i
    { 0x00, 0x20, 0x40, 0x44, 0x3D, 0x00 },   // j
    { 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 },   // k
    { 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 },   // l
    { 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 },   // m
    { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 },   // n
    { 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 },   // o
    { 0x00, 0x7C, 0x14, 0x14, 0x14, 0x08 },   // p
    { 0x00, 0x08, 0x14, 0x14, 0x18, 0x7C },   // q
    { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 },   // r
    { 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 },   // s
    { 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 },   // t
    { 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C },   // u
    { 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C },   // v
    { 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C },   // w
    { 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 },   // x
    { 0x00, 0x0C, 0x50, 0x50, 0x50, 0x3C },   // y
    { 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 },   // z
    { 0x00, 0x00, 0x08, 0x36, 0x41, 0x00 },   // {
    { 0x00, 0x00, 0x00, 0x7f, 0x00, 0x00 },   // |
    { 0x00, 0x00, 0x41, 0x36, 0x08, 0x00 },   // }
    { 0x00, 0x04, 0x02, 0x04, 0x08, 0x04 },   // ~
    { 0x00, 0x00, 0x00, 0x36, 0x00, 0x00 }   // ¦
};
 
void HC595_Display(unsigned char send_data)
{
  unsigned char bit_mask;
 
  for (bit_mask=1; bit_mask ;bit_mask <<=1)
  {
      if((send_data & bit_mask))
        data=1;
      else
        data=0;
 
      clock=1;
      delay_us(20);
      clock=0;
  }
 
      latch=1;
      delay_us(50);
      latch=0;
}
 
void main(){
   int char_index;
  int col_index;
  int x = 0;
  int delaycount;
  unsigned int startposition;
 
    ANSEL=0;
    ANSELH=0;
    TRISB=0;
    TRISC=0x00;
    HC595_Display(0);
    PORTC=0;
  startposition = 0;
 
   for(i=0; i<32; i++)
    s1[i] = msg_default[i];
 
        for(i=0; i<sizeof(msg_default); i++)
       s1[i] = msg_default[i];
      delay_ms(100);
 
   while (1)
   {
    delaycount=4; //-------> a control scanning speed here .
     while (delaycount)
     {
      col_index = startposition %6;
      char_index = startposition /6;
       if (char_index >= sizeof(s1))
       {
        startposition = 0;
        char_index = 0;
        col_index = 0;
      }
      x = s1[char_index];
 
// 74HC595
      PIN_SH_CP=0;
      PIN_ST_CP=0;
      PIN_SER_IN=0;
      PIN_SH_CP=1;
      delay_us(1000);
      PIN_SH_CP=0;
      PIN_SER_IN=1;
 
       for (i=0;i<8;i++) // 80 We use one column
       {
        PIN_ST_CP=1;
        delay_us(200);
        PIN_ST_CP=0;
        delay_us(1000);
        PIN_SH_CP=1;
        delay_us(1000);
        PIN_SH_CP=0;
 
        if (col_index == 6)
       {
          col_index = 0;
          char_index++;
          if (char_index >= sizeof(s1))
            char_index = 0;
          x = s1[char_index];
       }
        else
        {
          if ( x < 32)
           HC595_Display(0);
           else if( x < 128)
            HC595_Display(ascii4[x-32][col_index]);
            col_index++;
          }
            delay_us(1000);  //brightness
            HC595_Display(0);
      }
            delaycount--;
    }
            startposition++;
  }
 }
 
Last edited by a moderator:

If you successfully compiled the original code and worked fine, there is no reason for not work as well in changing the string, unless having other problems unrelated to code.
 

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