Resets when using Serial and software serial

Development Tools IDE 1.x
1

I'm using the UART serial port at 115200bps and software serial at 9600bps.
All is fine if I only use the UART serial but when I start using one and then immediately try and use the software serial my chip resets.

I am doing things like:

Serial.print("hello");
Serial.write(13);
delay(20);

softwareSerial.print("stuff");

Any ideas?
I've tried using the software serial at 115200bps too but that doesn't help.

2

Any ideas?

Post your code, using code tags

3

Is it not Serial.write() and not Serial.send() ?

4

The pertinent pieces of code:

#include <SoftwareSerial.h>

#define SRB_SOFTWARESERIAL_RX 10
#define SRB_SOFTWARESERIAL_TX 11
SoftwareSerial SRB_SoftSerial = SoftwareSerial(SRB_SOFTWARESERIAL_RX, SRB_SOFTWARESERIAL_TX);

enum eScreenDisplayType
{
  SCREENDISPLAY_COLOUR_BLACK    = 0,
  SCREENDISPLAY_COLOUR_RED      = 1,
  SCREENDISPLAY_COLOUR_GREEN    = 2,
  SCREENDISPLAY_COLOUR_ORANGE   = 3
};

#define DISPLAY_SCREEN_WIDTH 80
#define DISPLAY_SCREEN_HEIGHT 8

void setup()
{
  SRB_SoftSerial.begin(9600);
  SRB_SoftSerial.listen();
  Serial.begin(115200);
}

void loop()
{
  screenDisplay("hello world", SCREENDISPLAY_COLOUR_BLACK, SCREENDISPLAY_COLOUR_RED);
  SRB_SoftSerial.print("softwareserial");
}

void screenDisplayInternal(char* message)
{
  Serial.print(message);
  Serial.write(13);
  Serial.flush();
  delay(20);
}

void screenPaint()
{
  screenDisplayInternal("paint");
}

void screenClear()
{
  screenDisplayInternal("clear");
}

void screenDisplay( const char* message,
                    int background,
                    int foreground)
{
  char __dsp[512];
  // text
  // colour 0 = black, 1 = red, 2 = green, 3 = orange
  // pos x, y - bottom left
  if(background == SCREENDISPLAY_COLOUR_BLACK)
  {
    screenClear();
  }
  else
  {
    snprintf(__dsp, 512, "rect %d 0 7 %d %d", background, DISPLAY_SCREEN_WIDTH, DISPLAY_SCREEN_HEIGHT);
    screenDisplayInternal(__dsp);
  }

  snprintf(__dsp, 512, "text %d 0 7 \"%s\"", foreground, message);
  screenDisplayInternal(__dsp);
  screenPaint();
}
5

Do you have stack space for a 512 byte array?