Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Need help shortening program to run Servo Motor.

Status
Not open for further replies.
D

darrellc

Newbie level 3
Joined
Jul 13, 2009
Messages
3
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,281
Activity points
1,300
delay_us on mikroc

I'm trying to run a servo motor with this program code. I'm using the mikroC basic compiler for PIC. It's over the limit, can't find any way to shorten the program. Can somebody help me? Would appreciate all help.

Code: 
//Servo Motor Auto-Mode Test 

int i; 

void main() { 
     TRISB = 0; 
     ADCON1= 0x07; 
     PORTB = 0; 

     do { 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1300); 
        PORTB = 0x00; 
        Delay_us(18700); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1310); 
        PORTB = 0x00; 
        Delay_us(18690); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1320); 
        PORTB = 0x00; 
        Delay_us(18680); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1330); 
        PORTB = 0x00; 
        Delay_us(18670); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1340); 
        PORTB = 0x00; 
        Delay_us(18660); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1350); 
        PORTB = 0x00; 
        Delay_us(18650); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1360); 
        PORTB = 0x00; 
        Delay_us(18640); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1370); 
        PORTB = 0x00; 
        Delay_us(18630); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1380); 
        PORTB = 0x00; 
        Delay_us(18620); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1390); 
        PORTB = 0x00; 
        Delay_us(18610); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1400); 
        PORTB = 0x00; 
        Delay_us(18600); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1410); 
        PORTB = 0x00; 
        Delay_us(18590); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1420); 
        PORTB = 0x00; 
        Delay_us(18580); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1430); 
        PORTB = 0x00; 
        Delay_us(18570); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1440); 
        PORTB = 0x00; 
        Delay_us(18560); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1450); 
        PORTB = 0x00; 
        Delay_us(18550); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1460); 
        PORTB = 0x00; 
        Delay_us(18540); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1470); 
        PORTB = 0x00; 
        Delay_us(18530); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1480); 
        PORTB = 0x00; 
        Delay_us(18520); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1490); 
        PORTB = 0x00; 
        Delay_us(18510); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1500); 
        PORTB = 0x00; 
        Delay_us(18500); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1510); 
        PORTB = 0x00; 
        Delay_us(18490); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1520); 
        PORTB = 0x00; 
        Delay_us(18480); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1530); 
        PORTB = 0x00; 
        Delay_us(18470); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1540); 
        PORTB = 0x00; 
        Delay_us(18460); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1550); 
        PORTB = 0x00; 
        Delay_us(18450); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1560); 
        PORTB = 0x00; 
        Delay_us(18440); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1570); 
        PORTB = 0x00; 
        Delay_us(18430); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1580); 
        PORTB = 0x00; 
        Delay_us(18420); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1590); 
        PORTB = 0x00; 
        Delay_us(18410); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1600); 
        PORTB = 0x00; 
        Delay_us(18400); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1610); 
        PORTB = 0x00; 
        Delay_us(18390); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1620); 
        PORTB = 0x00; 
        Delay_us(18380); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1630); 
        PORTB = 0x00; 
        Delay_us(18370); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1640); 
        PORTB = 0x00; 
        Delay_us(18360); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1650); 
        PORTB = 0x00; 
        Delay_us(18350); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1660); 
        PORTB = 0x00; 
        Delay_us(18340); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1670); 
        PORTB = 0x00; 
        Delay_us(18330); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1680); 
        PORTB = 0x00; 
        Delay_us(18320); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1690); 
        PORTB = 0x00; 
        Delay_us(18310); 
        } 
        for(i=0;i<=25;i++){ 
        PORTB = 0x01; 
        Delay_us(1700); 
        PORTB = 0x00; 
        Delay_us(18300); 
        } 
     } while(1); 
}

I tried with Vdelay_ms() and doing it like Vdelay_ms(j), where j = 1.3. Then use j = j + count, where count = 0.01. However it's unable to calculate decimals. I'm just a rookie, don't know much. Hope someone would be able to help. Thanks.
 

programming servo motors

Hi.

I have no idea what this program is good for, but I can suggests a small size optimization like this:
Code: 
//Servo Motor Auto-Mode Test 

int i, j; 

void main()
{ 
	TRISB = 0; 
	ADCON1= 0x07; 
	PORTB = 0; 

	do
	{
		for(j=1300; j<=1700; j+=10)
		{
			for(i=0; i<=25; i++)
			{
				PORTB = 0x01; 
				Delay_us(j); 
				PORTB = 0x00; 
				Delay_us(20000-j); 
			} 
		}
	}while(1); 
}
I hope this helps,
Arthur
 

how to run servo motor

The thing is that I am unable to put a variable into the 'Delay_us()'. I'm using the mikroC PIC compiler.
 

    V

    Points: 2
    Helpful Answer Positive Rating
help delay_us

How 'bout this then:
Code: 
//Servo Motor Auto-Mode Test 

int i, j; 

void Delay_10us(int dly)
{
	while(--dly > 0)
	{
		Delay_us(10);
	} 
}

void main()
{ 
	TRISB = 0; 
	ADCON1= 0x07; 
	PORTB = 0; 

	do
	{
		for(j=130; j<=170; j++)
		{
			for(i=0; i<=25; i++)
			{
				PORTB = 0x01; 
				Delay_10us(j); 
				PORTB = 0x00; 
				Delay_10us(2000-j); 
			} 
		}
	}while(1); 
}
:?:
 

    D

    darrellc

    Points: 2
    Helpful Answer Positive Rating
servo motor test program

Hmm, error message 'Delay_10us Identifier redefined'. However, I tried changing the name of the function and it managed to compile! Now I just have to test it out on my motor later on. :D Thanks!
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top