ATmega16 code translation…

[Bahman Mohammadhoseini]

Hello,everybody.Would you please tell me;

1-What does mean the following ATmega16/AVR instructions?;

……..

unsigned int k, h;

DDRA=0x00;

 

DDRD=0XFF;

 

while (1)

{

 

k =~PINA;

 

h=k & 0x0F;

 

switch (h)

{…..

 

And what is the following ATmega16/AVR code translation to PIC18F452 in mikroC compiler ?;

 

#include <mega16.h>

 

void main(void)

{

 

unsigned int k, h;

 

DDRA=0x00;

 

DDRD=0XFF;

 

while (1)

{

 

k =~PINA;

 

h=k & 0x0F;

 

switch (h)

{

 

case 0x02: 

{

 

PORTD=0x89;

 

break;

 

}

 

case 0x08: 

{

 

PORTD=0x86; 

 

break;

 

}

 

case 0x04:

{

 

PORTD=0x85; 

 

break;

 

}

 

case 0x06:

 

{

 

PORTD=0x8A; 

 

break;

 

}

 

case 0x05:

 

{

 

PORTD=0x00; 

 

break;

 

}

}

}

}

 

                                                                                  Thanks,

 

[Vara Ashishkumar]

Hey bahman

DDRA is defined as INPUT port and DDRD is defined as OUTPUT port.DDRx is data direction register which define for initialize I/O pins.PINA register get the readings from input pin of controller.I suggest to you refer the book of AVR controller and PIC controller by mazidi.chek I/O configuration and register of PIC18F452 for AVR atmega16 to PIC18F452 translation.

[Bahman Mohammadhoseini]

Hi,thanks for your useful answer.

[Author]

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