look-up table sa MikroC

[tamuragko]

Hi po mga master, i'm a newbie in high level PIC programming pero mai konting experience na po with assembly language...

Tanong ko lang po kung pano gumwa nang parang "look-up" table sa MikroC.. 

[glutnix_neo]

Hi po mga master, i'm a newbie in high level PIC programming pero mai konting experience na po with assembly language...

Tanong ko lang po kung pano gumwa nang parang "look-up" table sa MikroC.. 

gamit ka ng switch-case or array....depende sa application

Code: [Select]

// convert hex to char
switch(hexnumber)
{
case 0:
  character = '0'
  break;
case 1:
  character = '1'
  break;
case 2:
  character = '2'
  break;
default:
  character = '0'
  break;
}


Code: [Select]

char lookup[4] = {'0','1','2','3'}; // initialize lookup table here.

// convert hex to char
character = lookup[hexnumber];


[tamuragko]

yeah got it working... one other thing sir, pano pag fuctions na ilagay ko sa array... like
 

Code: [Select]


char lookup[2] = {funk1(),funk2()};


nag eerror na sya.

[glutnix_neo]

yeah got it working... one other thing sir, pano pag fuctions na ilagay ko sa array... like
 

Code: [Select]


char lookup[2] = {funk1(),funk2()};


nag eerror na sya.

use the switch-case,

switch(func_ref)
{
  case 0:
    function1();
    break;
  case 1:
    function2();
    break;
  default:
    break;
}

[tamuragko]

cool.. thanks sir glutnix_neo

[glutnix_neo]

cool.. thanks sir glutnix_neo

common mistake lang sa switch case, malimit nakakalimutang lagyan ng break yung bawat case, dapat palaging may default din and define how to handle default....

default yung condition similar to else sa if-else statement...

[carlsberg11]

^UP.

sir question regarding lookup table. pwedi po ba i set mo yung output of any port you like sa pic?

example.

Code: [Select]

// convert hex to char
switch(hexnumber)
{
case 0:
  PORTB= 0xA8;
  Delay_ms(45.6);
  PORTB= 0xB1;
  break;
case 1:
  PORTB= 0x90;
  Delay_ms(45.6);
  PORTB= 0x00;
  break;
case 2:
  PORTB= 0x00;
  Delay_ms(45.6);
  PORTB= 0x12;
  break;
default:
  PORTB= 0xA2;
  Delay_ms(45.6);
  PORTB= 0x56;
  break;
}

valid po ba yung above code?

[dummy_c]

^^ Hindi!
Mag error po yan.
Di pwedi decimal point sa delay_ms.
Use delay_us instead, i.e. delay_us(45600).
At tulad ng sabi ni master gluti na kailangan may break sa bawat case at meron din default.
 

[carlsberg11]

^^ Hindi!
Mag error po yan.
Di pwedi decimal point sa delay_ms.
Use delay_us instead, i.e. delay_us(45600).
At tulad ng sabi ni master gluti na kailangan may break sa bawat case at meron din default.
 

yun salamat master lurker. para kasi to sa POV, ommit ko na lang yung decimal points regarding the delays. thanks for correction master! +1 101+1