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  1. #include <stdlib.h>
  2. #include <avr/io.h>
  3. #include <avr/pgmspace.h>
  4. #include <util/delay.h>
  5. #include "lcd.h"
  6.  
  7. void writeCustomChars(const PROGMEM unsigned char customChars[][8], uint8_t customCharOffset){
  8.  
  9.    lcd_command(_BV(LCD_CGRAM));  /* set CG RAM start address 0*/
  10.  
  11.    for (uint8_t i = customCharOffset; i < customCharOffset + 5; i++){
  12.       for(uint8_t j = 0; j < 8; j++)
  13.          lcd_data(pgm_read_byte_near(&customChars[i][j]));
  14.    }
  15. }
  16.  
  17. void printDDRAMcustomChars(void){
  18.    for(uint8_t i = 0; i < 4; i++){
  19.       lcd_gotoxy(2, i);
  20.       for(uint8_t j = 0; j < 5; j++){
  21.          lcd_putc(j);
  22.       }
  23.    }
  24. }
  25.  
  26. int main(void){
  27.    static const PROGMEM unsigned char customChars[20][8] = {
  28.       {
  29.          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01 //begin of row 1
  30.       },
  31.       {
  32.          0x00, 0x03, 0x07, 0x0e, 0x0e, 0x1c, 0x18, 0x18
  33.       },
  34.       {
  35.          0x0e, 0x1f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00
  36.       },
  37.       {
  38.          0x00, 0x18, 0x1c, 0x1e, 0x1e, 0x07, 0x03, 0x03
  39.       },
  40.       {
  41.          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x18 //end of row 1
  42.       },
  43.       {
  44.          0x03, 0x03, 0x07, 0x07, 0x07, 0x0f, 0x0f, 0x0f //begin of row 2
  45.       },
  46.       {
  47.          0x10, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00
  48.       },
  49.       {
  50.          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  51.       },
  52.       {
  53.          0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00
  54.       },
  55.       {
  56.          0x18, 0x18, 0x1c, 0x1c, 0x1c, 0x1e, 0x1e, 0x1e //end of row 2
  57.       },
  58.       {
  59.          0x0f, 0x0f, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f //begin of row 3
  60.       },
  61.       {
  62.          0x00, 0x1f, 0x1f, 0x1f, 0x00, 0x00, 0x00, 0x00
  63.       },
  64.       {
  65.          0x00, 0x00, 0x1b, 0x1f, 0x1f, 0x04, 0x00, 0x00
  66.       },
  67.       {
  68.          0x00, 0x1f, 0x1f, 0x1f, 0x00, 0x00, 0x00, 0x00
  69.       },
  70.       {
  71.          0x1e, 0x1e, 0x1e, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f //end of row 3
  72.       },
  73.       {
  74.          0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f //begin of row 4
  75.       },
  76.       {
  77.          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  78.       },
  79.       {
  80.          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  81.       },
  82.       {
  83.          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  84.       },
  85.       {
  86.          0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f //end of row 4
  87.       }
  88.    };
  89.  
  90.    lcd_init(LCD_DISP_ON);
  91.    lcd_clrscr();
  92.  
  93.    for(uint8_t i = 1; i <= 20; i++){
  94.       writeCustomChars(customChars, i);
  95.       if( !(i % 5) )
  96.          printDDRAMcustomChars();
  97.    }
  98.  
  99.    for(;;){
  100.  
  101.    }
  102. }
  103.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.c:2:20: fatal error: avr/io.h: No such file or directory
 #include <avr/io.h>
                    ^
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/ZO9oEy
language:
C (gcc 8.3)
created:
6 years ago
visibility:
secret

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