Real pic simulator taking input and then blinkin led s..

[kishore680]

depending upon the state of portb 8 pin.. the first 4 led s should glow or stop glowing.. how to simulate this in real pic simulator..
code is

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main()
{
    TRISB=0X80; 
 
    while(1)  // do forever
    {
 
 
             while(portb&0x80)
            { portb=0x0f;
             delay_100ms;
             }
 
 
                 portb=0x00;
                 delay_100ms;
 
 
 
    }
}

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[ALERTLINKS]

Compile and load hex file in simulator. Add and connect LEDs to portb pins. Set speed (crystal frequency) and run the simulator.

 

[kishore680]

i ve assigned RB7 to one of the led;s but i m not getting output.. on the other led 's depending on the state of the input led

 

[ALERTLINKS]

Rb7 is configured as input.

TRISB=0X80;

(080 hex = 10000000 binary)
Change it to

TRISB=0X00;

Further

portb=0x0f

will only turn on only rb0-rb3 (00001111b)
Change it to

portb=0xff

(11111111b), if you need to change state of whole port.

 

[kishore680]

i need to control the on and off led s which are connected to rb0-rb3 through rb7??? can u tell me hw to do that in real pic simulator?

 

[ALERTLINKS]

Do you want it like this,
When input to rb7 is at logic 1, LEDs on portb rb0-rb3 turn on and when input is at logic 0 , LEDs turn off?