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I wanna use While...

 
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Joined: 23 Sep 2003
Posts: 12
Location: South KOREA

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I wanna use While...
PostPosted: Sat Nov 27, 2004 5:34 am     Reply with quote
Dear Engeneer...

Hello?
This is Shouth Korea... Sorry I'm poor English...

anyway... I wanna use while...

B2 is Input...
and D3 is Out put

First.

D3 = 1;

while(1)
{
if(B2 == 1) break; //sensor in?
}

D3 = 0;


2nd...

D3 = 1;
while (B2 != 1)
{
}


What is better?

Please teach me...


Cyliner On... and... Sensor In then... Cylinder Off...
_________________
Hello~?

This is South KOREA
My name is Sanghyouk Kim But Call me Nick
Sorry I'm poor English
Humberto



Joined: 08 Sep 2003
Posts: 1215
Location: Buenos Aires, La Reina del Plata

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PostPosted: Sat Nov 27, 2004 8:49 am     Reply with quote
You can use macros to get your code more readable.
Is this what you want to do?

Code:


#define activate      output_high
#define deactivate    output_low
#define cylinder_D    PIN_D3

#define sensor_1      PIN_B1 // Home position
#define sensor_2      PIN_B2 // End of the stroke

void main()
{

 while(1)
   {
    do
      {
       activate(cylinder_D);
      }while(input(!sensor_2)); // until the cylinder is completelly OUT
     
    delay_ms(1000);

    do
      {
       deactivate(cylinder_D);
      }while(input(!sensor_1)); // until the cylinder is completelly IN
 
    delay_ms(1000);
  }
}



best wishes,

Humberto
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Sun Nov 28, 2004 9:37 am     Reply with quote
Code:
      }while(input(!sensor_2)); // until the cylinder is completelly OUT
I think this contains an error and must be changed to:
Code:
      }while(! input(sensor_2)); // until the cylinder is completelly OUT
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