All About Circuits

Half stepping stepper control help!!!

S

Thread Starter

sairyuva

Joined Mar 9, 2010
11
Here is my code: Doesn't work at isis simulation
Rich (BB code): 
#define     step1 0x20    
#define    step2   0x10  
#define    step3     0x08
#define    step4      0x04
 int working, step_no;

    void step_lookup()
    {
        if(step_no==1)
            working=step1;
        if(step_no==2)
            working=step1|step2;
        if(step_no==3)
            working=step2;
        if(step_no==4)
            working=step2|step3;
        if(step_no==5)
            working=step3;
        if(step_no==6)
            working=step3|step4;
        if(step_no==7)
            working=step4;
        if(step_no==8)
            working=step4|step1;
    }
    
    void step_update()
    {
        step_no++;
        if(step_no>8)
            step_no=1;
         
        step_lookup();
        PORTB = working;
    }
    
    void tmr0_init()
    {
        ei();
        T0CS = 0;
        TMR0IE=1;
        TMR0IF=0;
        TMR0=50;
        PEIE=1;
    }
    

    
    void main()
    {
        tmr0_init();
        TRISB=0x00;
        PORTB=0x00;
        
        while(1)
        {
        
        }    
    }
    
        void interrupt isr(void)
    {
        if(TMR0IF==1)
            step_update();
        TMR0IF=0;
        TMR0=50;
    }


Please tell me, whats wrong. Using PIC16f877a @ 11.0592MHz
 
Last edited:
SgtWookie

SgtWookie

Joined Jul 17, 2007
22,230
Just adding in CODE /CODE blocks

Rich (BB code): 
#define     step1 0x20    
#define    step2   0x10  
#define    step3     0x08
#define    step4      0x04
 int working, step_no;

    void step_lookup()
    {
        if(step_no==1)
            working=step1;
        if(step_no==2)
            working=step1|step2;
        if(step_no==3)
            working=step2;
        if(step_no==4)
            working=step2|step3;
        if(step_no==5)
            working=step3;
        if(step_no==6)
            working=step3|step4;
        if(step_no==7)
            working=step4;
        if(step_no==8)
            working=step4|step1;
    }
    
    void step_update()
    {
        step_no++;
        if(step_no>8)
            step_no=1;
         
        step_lookup();
        PORTB = working;
    }
    
    void tmr0_init()
    {
        ei();
        T0CS = 0;
        TMR0IE=1;
        TMR0IF=0;
        TMR0=50;
        PEIE=1;
    }
    

    
    void main()
    {
        tmr0_init();
        TRISB=0x00;
        PORTB=0x00;
        
        while(1)
        {
        
        }    
    }
    
        void interrupt isr(void)
    {
        if(TMR0IF==1)
            step_update();
        TMR0IF=0;
        TMR0=50;
    }
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
B L6384 H-Bridge drive funcion. Datasheets, Manuals & Parts Identification 0
S Internal Gate-source connection of a half-bridge SiC module (Wolfspeed) Power Electronics 3
E Half Bridge soft switching questions Power Electronics 3
Bilal_99 LTSpice IR2103 simulation not running PCB Layout , EDA & Simulations 6
E Half Bridge inverter output problem General Electronics Chat 16
Similar threads
L6384 H-Bridge drive funcion.
Internal Gate-source connection of a half-bridge SiC module (Wolfspeed)
Half Bridge soft switching questions
LTSpice IR2103 simulation not running
Half Bridge inverter output problem

You May Also Like

Top