Chief Delphi - Using printf() as UserCode in EasyC 2.0

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tacman1123

31-05-2006 08:45

Using printf() as UserCode in EasyC 2.0

I've add stdio.h to the Include files of my project, but printf("Test: %d", 1); (as a UserCode block) isn't writing to the terminal. What does PrintToScreen() do differently? PrintToScreen is limited to a single variable, and has a "\n" at the end, I'd like to have a bit more control (and just understand the communciation process better).

Do I need to include the printf_lib? If so, can someone explain the steps of integrating the VexCode libraries with the EasyC libraries?

TIA,

Tac

gabrielse

31-05-2006 09:03

Re: Using printf() as UserCode in EasyC 2.0

Quote:

Originally Posted by tacman1123

I've had good luck using PrintToScreen as user code when I need to print multiple variables on one line. Use PrintToScreen the same way you would use printf in a user code block, just make sure you typecast your variables. There is no need to include any libraries.

example (type this in as user code):
PrintToScreen("x = %d, y = %d\n", (int)x, (int)y);

Good luck.

tacman1123

31-05-2006 10:01

Re: Using printf() as UserCode in EasyC 2.0

Thanks, that helps. I'd still like to know more about how to integrate low-level calls, but your solution solved my immediate problem, which was a simple script to monitor the radio transmitter values (since the Online mode doesn't display those). For those that are interested, here it is.

Code:

#include "Main.h"



void main ( void )

{

      int time = 0; 

      int rx = 0; 

      int channel = 1; 

      int rx_value = 1; 

      int i = 0; 



      StartTimer ( 1 ) ;

      while ( 1 )

      {

            time = GetTimer ( 1 ) ;

            for ( rx=1 ; rx<=2 ; rx++ ) // loop through rx

            {

                  for ( channel=1 ; channel<=6 ; channel++ )

                  {

                        rx_value = GetRxInput ( rx , channel ) ;

                        PrintToScreen("%3d ", (int)rx_value);

                  }

            }

            PrintToScreen ( "at %d\n" , (int)time ) ;

      }

}

Now what would be nice is if the terminal window could be widened and the font could be changed to a fixed-width font, so that the results came out tabular instead of in a series of numbers.

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