# Problem: Debug VS Run Mode

**URL:** <https://forums.digi.com/t/problem-debug-vs-run-mode/10527>\
**Category:** Rabbit\
**Created:** [October 11, 2010, 8:51am UTC](https://forums.digi.com/t/problem-debug-vs-run-mode/10527 "2010-10-11T08:51:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sk1](https://avatars.discourse-cdn.com/v4/letter/s/7ba0ec/32.png) [@sk1](https://forums.digi.com/u/sk1)\
**Post date:** [October 11, 2010, 8:51am UTC](https://forums.digi.com/t/problem-debug-vs-run-mode/10527/1 "2010-10-11T08:51:28Z")

</div>

Dear All,

My dynamic c program is behaving in a weird way. When I debug the code it shows me no errors in my outputs; however, when I run it, it print my outputs with some mal characters.

Isn’t Debug is just Like run? Am wondering why am receiving different outputs in these modes.

```auto

#use rcm3100.lib

#define BINBUFSIZE 255
#define BOUTBUFSIZE 255

#define CINBUFSIZE 255
#define COUTBUFSIZE 255

void main()
{
	int c, n;
   auto int i, ch;
   static const char string1[] = {"BThis message has been Rcv'd from serial port B !!!

\r"};
	static const char string2[] = {"CThis message has been Rcv'd from serial port C !!!

\r"};
	auto char buffer[64];//buffer used for serial data
   char s[64];
   i = 0;
   c = 0;
	// This is necessary for initializing RS232 functionality of LP35XX boards.
	brdInit();

   //open serial ports B &amp; C, initialize them by setting baud rate
   serBopen(19200);
   serBwrFlush();
   serBrdFlush();

   serCopen(19200);
   serCwrFlush();
   serCrdFlush();

   // Clear data buffer
   memset(buffer, 0x00, sizeof(buffer));
   memset(s, 0x00, sizeof(s));

   loopinit();
   while (1)
   {
   	loophead();
   	costate{
         	memcpy(buffer, string2, strlen(string2));
   			wfd cof_serCputs(buffer);
            memset(buffer, 0x00, sizeof(buffer));

            wfd n = cof_serBread(buffer, sizeof(buffer),20);

            serBrdFlush();
            serCwrFlush();

            wfd cof_serBputs(buffer);
            printf("%s", buffer);

            serBwrFlush();
            serCrdFlush();

            memset(buffer, 0x00, sizeof(buffer));
      }

     costate{
            memcpy(s, string1, strlen(string1));
            wfd cof_serBputs(s);
            memset(s, 0x00, sizeof(s));

            wfd n = cof_serCread(s, sizeof(s),20);

            serBwrFlush();
            serCrdFlush();

            wfd cof_serCputs(s);
            printf("%s", s);

            serCwrFlush();
            serBrdFlush();

           //memset(buffer, 0x00, sizeof(buffer));
      }
    }
   serBclose();
   serCclose();
}

```

Thank you.

-SK