Add GPIO Port B initialize

main.c

@@ -18,6 +18,31 @@ void GPIO_PORT_F_init(void)
     GPIO_PORTF_IM_R  |= 0x11;                  // Unmask interrupts for PF0 and PF4
 }
 
+void GPIO_PORT_B_init(void)
+{
+
+        SYSCTL_RCGCGPIO_R |= 0x02;       // Enable clock to GPIOB
+        SYSCTL_RCGCUART_R |= 0x02;       // Enable UART1 clock
+
+        GPIO_PORTB_DEN_R |= 0x03;        // Enable PB0, PB1 as digital
+        GPIO_PORTB_AFSEL_R |= 0x03;      // Enable alternate function on PB0, PB1
+
+        GPIO_PORTB_PCTL_R = (GPIO_PORTB_PCTL_R & 0xFFFFFF00) | 0x00000011; // Set PB0, PB1 for UART
+
+        UART1_CTL_R &= ~0x01;            // Disable UART1 during setup
+        UART1_IBRD_R = 104;              // Set integer part of baud rate (for 9600 baud at 16 MHz clock)
+        UART1_FBRD_R = 11;               // Set fractional part of baud rate
+        UART1_LCRH_R = 0x62;             // 8-bit, odd parity, 1 stop bit
+        UART1_CC_R = 0x00;               // Use system clock
+
+        UART1_CTL_R |= 0x301;            // Enable UART1, RX, and TX
+
+}
+
+
+
+
+
 void UART1_WRITE(char data)
 {
     while (UART1_FR_R & 0x20);       // Wait until TX FIFO is not full