I'm trying to send out information over the serial port to an embedded device. The idea is to convert large numbered inputs into a couple of bytes by splitting it then running char() on it.

Then converting it to a string .. therefore sending down 2 bytes as special charactors. The problem happens when sending a char that is valued over 128. For example þ or û anything thats ascii code is bigger than 128.

The string that is being sent over the serial port contains the right numbers i.e

ó| is produced as stored in string11/12 when 62332 however it will not be sent over the serial port.

The receiving code does accept these charactors as it has been tested with hyperterminal.


Code:

	// Read in the number from the text box and convert to int 

		int text1 = System::Convert::ToInt32(this->textBox1->Text);
		int text2 = text1 >> 8;
		int text3 = text1 & 0x000000FF;
		// Bit shift the number into two differet ints
			
		wchar_t w_text11 = unsigned char(text2);
  		wchar_t w_text12 = unsigned char(text3);
		// Convert the number to its ASCII equivilant 

		String ^s_text11 = System::Convert::ToString(w_text11);
		String ^s_text12 = System::Convert::ToString(w_text12);
		//Convert the ascii equivilant to a string

		//Write strings to serial port			
		this->serialPort1->Write(s_text11);
                this->serialPort1->Write(s_text12);

Anyone know how to send special chars over the serial port ASCII value >128 ?

Thanks.

Paul