Intial code push

Telem_Debug/Debug3/RS232.c

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+/*
+ *  Originally Written for TELEMETRY 2021 PCB Development
+ * 
+ *  UART to Modem UCA3 Interface
+ *
+ *  Clock and microcontroller Initialization RS232
+ */
+
+// Include files
+#include<msp430x54xa.h>
+#include "Sunseeker2021.h"
+#include "RS232.h"
+
+/*********************************************************************************/
+// UART to Modem UCA3 Interface (voltage isolated)
+/*********************************************************************************/
+void UART_init(void)
+{
+    UCA3CTL1 |= UCSWRST | UCSSEL_2;	//put state machine in reset & SMCLK
+    UCA3CTL0 |= UCMODE_0;
+    UCA3BRW = (int)(SMCLK_RATE/MODEM_BR1);	//10MHZ/9600
+    UCA3MCTL |= UCBRF_0 + (char)MODEM_UCBRS1; //modulation UCBRSx=computed from baud rate UCBRFx=0
+	
+	UCA3IFG &= ~UCTXIFG;			//Clear Xmit and Rec interrupt flags
+	UCA3IFG &= ~UCRXIFG;
+	UCA3CTL1 &= ~UCSWRST;			// initalize state machine
+	UCA3ABCTL |= UCABDEN;			// automatic baud rate
+
+//  UCA3IE |= UCRXIE|UCTXIE;		//enable TX & RX interrupt
+}
+
+void UART_putchar(char data)
+{
+    while((UCA3IFG & UCTXIFG) == 0);
+    UCA3TXBUF = data; 
+}
+
+unsigned char UART_getchar(void)
+{
+	char i = 100;
+
+    while((UCA3IFG & UCRXIFG) == 0 && i != 0)
+    {
+    	i--;
+    }
+    return(UCA3RXBUF);
+}
+
+int UART_puts(char *str)
+{
+	int i;
+    char ch;
+    i = 0;
+
+    while((ch=*str)!= '\0')
+    {
+    	UART_putchar(ch);
+    	str++;
+    	i++;
+    }
+    UART_putchar(0x0A);
+    UART_putchar(0x0D);
+    
+    return(i);
+}
+
+int UART_gets(char *ptr)
+{
+    int i;
+    i = 0;
+    while (1) {
+          *ptr = UART_getchar();
+          if (*ptr == 0x0D){
+             *ptr = 0;
+             return(i);
+          }
+          else 
+          {
+          	ptr++;
+          	i++;
+          }
+     }
+}
+
+void UART_put_int(void)
+{
+    extern char *putPC_ptr;
+    extern char put_status_PC;
+    char ch;
+    
+    ch = *putPC_ptr++;
+
+	if (ch == '\0')
+	{
+		UCA3IE &= ~UCTXIE;
+		put_status_PC = FALSE;
+	}
+	else
+	{
+		UCA3TXBUF = ch;
+		UCA3IE |= UCTXIE;
+		put_status_PC = TRUE;
+	}
+}
+