[SOLVED] toggle multiple pins in C

[sri5496]

hi .


am bit new to programming am using dspic33f..need to toggle multiple pins in C progrm.. would appreciate if any one can help...

 

[jayanth.devarayanadurga]

What pins do you want to toggle?

 

[sri5496]

i/o pins PORT A(RA0,RA1) and PORTB (RB2,RB3)

 

[andre_luis]

You must evaluate '0'´s and '1'´s separatelly.
Try this :

\\ iWord <= input operator pattern in which pins to be toggled bits are designed by '1'
\\ PORTx <= global variable representing I/O uC port

int iTemp = PORTx ;

PORTx &= ~ ( iWord & iTemp ) ;
PORTx |=  ( ~iWord & iTemp ) ;

 

[zuisti]

Use a mask and the bitwise exclusive OR (XOR) operator, ^

PORTA ^= 0b00000011; //toggle bit0, bit1
PORTB ^= 0b00001100; //toggle bit2, bit3

 

[sri5496]

thanks for u replies

 

[jpsganesh]

Individual PIN Toggling

RB0 = ~RB0 // PORTB bit0
RC2 = ~RC2 // PORTC bit2


whats the different b/w LATB & PORTB ( LATCH & PORT )