4th Semseter files

4th-Semester-Spring-2023/Embedded/UART-Transmission/Makefile

@@ -0,0 +1,28 @@
+ifndef $(MSPGCCDIR)
+	MSPGCCDIR=$(HOME)/ti/msp430-gcc
+endif
+#paths
+INCLUDES_DIRECTORY = $(MSPGCCDIR)/include
+
+DEVICE = msp430fr2355
+
+# compiler options
+CC=$(MSPGCCDIR)/bin/msp430-elf-gcc
+
+CFLAGS = -I . -I $(INCLUDES_DIRECTORY) -mmcu=$(DEVICE) -g -mhwmult=f5series
+LFLAGS = -L . -L $(INCLUDES_DIRECTORY)
+
+# mspdebug driver -- used for installation
+DRIVER:= tilib
+
+# Compiling
+all: main.elf
+
+%.elf : %.c
+	$(CC) $(CFLAGS) $(LFLAGS) $< -o $@
+
+install: main.elf
+	mspdebug $(DRIVER) "prog $<" --allow-fw-update
+
+clean:
+	rm -f *.o *.elf

4th-Semester-Spring-2023/Embedded/UART-Transmission/main.c

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+#include <msp430.h> //115200, No jumper change
+
+char result[] = {'H', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd', '!'};
+
+void uart_init(void);
+void port_init();
+
+void main(void)
+{
+
+    WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
+    PM5CTL0 &= ~LOCKLPM5;
+
+    port_init();
+    int m=0;
+    uart_init();
+    __delay_cycles(5);                // Wait for ADC Ref to settle
+    int acount = 0;
+    while(1){
+      if(m == 0) 
+      {
+        __delay_cycles(200);
+        // then conver the Fahrenheit integer to an ASCII char array
+        //  while(result[acount]!='\0')
+        //{
+        while((UCA1IFG & UCTXIFG)==0);                  //Wait Unitl the UART transmitter is ready //UCTXIFG
+          UCA1TXBUF = result[acount] ;                   //Transmit the received data.
+        acount = (acount < 13) ? acount + 1 : 0;
+    }//while
+  }//main
+}
+
+ 
+
+ 
+
+void uart_init(void){
+    // Configure UART
+    UCA1CTLW0 |= UCSWRST;
+
+    /*UCA1CTLW0 |= UCSSEL__ACLK;//UCSSEL__SMCLK;
+    UCA1BRW = 3;//8;                             // 9600
+    UCA1MCTLW = 0X92;//0xD600;*/
+    UCA1CTLW0 |= UCSSEL__SMCLK;
+    UCA1BRW = 8;                             // 115200
+    UCA1MCTLW = 0xD600;
+    UCA1CTLW0 &= ~UCSWRST;                    // Initialize eUSCI
+    UCA1IE |= UCRXIE;                         // Enable USCI_A0 RX interrupt ??
+}
+
+ 
+
+void port_init(){
+    P1DIR |= BIT0;
+    P1OUT |= BIT0;
+    P4SEL0 |= BIT2 | BIT3;                    // set 2-UART pin as second function
+    P4SEL1 &= ~BIT2;                    // set 2-UART pin as second function
+    P4SEL1 &= ~ BIT3;                    // set 2-UART pin as second function
+
+}
+
+