Added old LED Dot Matrix Project

OSU Coursework/LED Dot Matrix Display (ECE 152)/Source/Wunderboard (ATMEGA644p)/uart.h

@@ -0,0 +1,86 @@
+#define SENDSPEED 4	
+
+unsigned char InitializeUART (){
+		unsigned char baud = 12; //((F_CPU/(9600*8UL))-1);
+		
+		/* Set baud rate */
+		UBRR1H = (baud >> 8);
+		UBRR1L = baud;
+		/* Set the U2X1 bit */
+		UCSR1A = (1 << U2X1);
+		/* Enable transmitter */
+		UCSR1B = (1 << TXEN1 | 1 << RXEN1);
+		/* Set frame format: 8data, 1stop bit */
+		UCSR1C = (3 << UCSZ10);
+
+		return 0;
+	}
+
+/** This function needs to write a single byte to the UART. It must check that the UART is ready for a new byte 
+and return a 1 if the byte was not sent. 
+@param [in] data This is the data byte to be sent.
+@return The function returns a 1 or error and 0 on successful completion.*/
+
+unsigned char SendByteUART (unsigned char data){
+		
+	/* 
+	** Checks the buffer empty bit so that data can either be placed in the buffer
+	** or else reuturn a 1
+	*/
+	if((UCSR1A & (1 << UDRE1)) == (1 << UDRE1)){
+		UDR1 = data;
+		_delay_ms(SENDSPEED);			//Places data into the UDR1 8-bit data buffer
+	}else {
+		return 1;
+	}
+
+	return 0;
+}
+
+/** This function needs to writes a string to the UART. It must check that the UART is ready for a new byte and 
+return a 1 if the string was not sent. 
+@param [in] data This is a pointer to the data to be sent.
+@return The function returns a 1 or error and 0 on successful completion.*/
+
+unsigned char SendStringUART (unsigned char *data){
+	
+	for (int loop = 0 ; data[loop] != '\0'; loop++){
+		unsigned char bytereturn;	//Storage for return value of SendByteUART
+				
+		/* Sends the current byte based on the loop umber to SendByte */
+		bytereturn = SendByteUART(data[loop]);
+		
+		/* Stops sending if SendByteUART had an error */
+		if(bytereturn == 1){
+			return 1;
+		}	
+	}
+	return 0;
+}
+
+unsigned char GetByteUART(){
+	while(!(UCSR1A & (1 << RXC1)));
+		return(UDR1);	
+}
+
+unsigned char NewScreen(unsigned char STRING1[], unsigned char STRING2[]){
+	unsigned char UARTREAD[17];
+	unsigned char loop = 0;
+	
+	for(; loop < 17 ; loop++){
+		while(!(UARTREAD[loop] = GetByteUART()));
+	}
+	for(loop = 0 ; loop < 8 ; loop ++){
+		STRING1[loop] = UARTREAD[loop];
+	}	
+	STRING1[8] = '\0';
+	
+	for(; loop < 16 ; loop++){
+		STRING2[(loop-8)] = UARTREAD[loop];
+	}
+	
+	SendStringUART(STRING1);
+	SendStringUART(STRING2);
+	SendStringUART("\n");
+	return 0;
+}