I have my leds going in one direction and I need to have the

I have my leds going in one direction and I need to have them back from led 7 to led 0. I need that now . Thanks . I have my code written below . I did not finish

Instruction : If the lights initially flahed from LED 0 to LED 7 , depressing the switch once should switch the pattern to LED 7 to LED 0 . The pattern should reverse each time the switch is depressed .

#include \"EE3310_header.h\"

#include \"EE3310_header.h\"

#include <p24FJ64GA102.h>
#include \"xc.h\"
#define ON 1
#define OFF 0

#define LED0 _RB3
#define LED1 _RB4
#define LED2 _RB5
#define LED3 _RB6
#define LED4 _RB7
#define LED5 _RB8
#define LED6 _RB9
#define LED7 _RB10
#define SW3 _RB15

void config_Timer3(void){
T3CONbits.TON=0; //Turns TIMER off Initially
PR3=62499;
T3CONbits.TCKPS= 0b10; //Pre-scaler=256
_T3IF=0; // Interrupt Flag state
_T3IE=1; } //Enable Interrupt Bit
void DELAY(int T){
int DelayT=T; // Sets input time T to variable within Function to DelayT
int j=0; // Sets counter variable to 0
T3CONbits.TON=1; // Timer On
_T3IF=0; // SETS The Timer Flag to 0
for (j=0; j<DelayT; j++ ){ // Counter loop for DELAY T time[s]
TMR3 = 0; //Sets the Timer Bit to 0;
while(!_T3IF){} // Waits for the TIMER FLAG to turn high
_T3IF=0;} //Resets timer flag to low
T2CONbits.TON=0;} //Turns Timer off
void config_io(void){
TRISA = 0b00000;
TRISB = 0x8000; //set RB 15 high, ALL OTHERS port b as outputs
PORTA = 0b00000; // RA to low
PORTB = 0x0000;
AD1PCFG = 0x1FFF; //set analog pins to digital
  
}

void Config_CN (void) {
_CNIP = 3;
_CNIF = 0;
_CNIE = 1;
_CN11IE = 1;
}

int main(void){
int i = 0,a = 30;
config_Timer3();
config_io();
while(1)}

void __attribute__((__interrupt__,no_auto_psv)) _T1Interrupt (void){
if(SW3 == 1);{
LED0 = ON;
DELAY(a);
  
LED0 = OFF;
LED1 = ON;
DELAY(a);
  
  
LED1 = OFF;
LED2 = ON;
DELAY (a);

LED2= OFF;
LED3= ON;
DELAY (a);
  
LED3=OFF;
LED4=ON;
DELAY (a);
  
LED4=OFF;
LED5=ON;
DELAY (a);
  
LED5=OFF;
LED6=ON;
DELAY (a);

LED6=OFF;
LED7=ON;
DELAY(a);
  
LED7 = ON;
DELAY(a);
  
  
  
}

}
return 0 ;
  
  

Solution

5 leds

6 leds