Renamed the files

main.c

@@ -1,128 +0,0 @@
-#include<stdint.h>
-#include<stdbool.h>
-#include"tm4c123gh6pm.h"
-
-#define SW_bits 0x11
-#define RED 0x02
-#define BLUE 0x04
-#define GREEN 0x08
-
-
-/* Systick memory mapped registers */
-#define STCTRL *((volatile long *) 0xE000E010)      // control and status
-#define STRELOAD *((volatile long *) 0xE000E014)    // reload value
-#define STCURRENT *((volatile long *) 0xE000E018)   // current value
-#define ENABLE      (1 << 0)    // bit 0 of CSR to enable the timer
-#define CLKINT      (1 << 2)    // bit 2 of CSR to specify CPU clock
-#define SYS_INTEN      (1 << 1)    // enable systick interrupt
-
-void UART_INIT()
-{
-    SYSCTL_RCGCGPIO_R |= 0x30;             // Enabling clock to Port E and Port F
-    SYSCTL_RCGCUART_R |= (1<<7)|(1<<5);    // Enabling clock to UART 5th and 7th module
-    GPIO_PORTE_LOCK_R = 0x4C4F434B;        // Unlocking commit registers
-    GPIO_PORTE_CR_R |= 0xFF;               // commit register
-    /* configuring PORT E pins as Alternate function selection register */
-    GPIO_PORTE_AFSEL_R |= 0x33;            // configuring Port E 0 1 4 5 pins as alternate function
-    GPIO_PORTE_PCTL_R |= (1<<20)|(1<<16)|(1<<4)|(1<<0);
-    GPIO_PORTE_DIR_R = 0x33;               // setting PE5 and PE1 as output and PE4 and PE1 as input
-    GPIO_PORTE_DEN_R |= 0x33;              // setting  digital pins
-
-    // configuring UART 5 th module
-    UART5_CTL_R &= ~(0x01);                // disabling uart 5 module
-    UART5_IBRD_R =104;        // setting the baud rate as 9600
-    UART5_FBRD_R = 11;        // setting baud rate as 9600
-    UART5_LCRH_R =0x62;
-    UART5_CC_R = 0;
-    UART5_CTL_R |= ((1<<0)|(1<<8)|(1<<9));
-
-    /* Configuring NVIC and interrupt for uart module 5*/
-    /* UART5 has number 61 assigned for the interrupt vector table*/
-    UART5_IM_R &= ((0<<4)|(0<<5)|(0<<8));       //Mask Tx, Rx and Parity interrupts
-    UART5_ICR_R &= ((0<<4)|(0<<5)|(0<<8));      //Clear Tx, Rx and Parity interrupts
-    UART5_IM_R |= (1<<4);                       //Enable Rx interrupt
-    NVIC_EN1_R |= (1<<29);                      //Interrupts enabled for UART5
-    NVIC_PRI15_R &= 0xFFFF5FFF;                 //Interrupt Priority 2 to UART5
-}
-
-void GPIO_INIT()
-{
-    // here we will configure the GPIO pins.
-    /* switch 1 is connected to PF4 and switch 2 is connected to PF0 */
-    GPIO_PORTF_LOCK_R = 0x4C4F434B;     //Unlock PortF register
-    GPIO_PORTF_CR_R = 0x1F;             //Enable Commit function
-    GPIO_PORTF_DIR_R = 0x0E;     // setting PF0  and PF4 as input pins
-    GPIO_PORTF_DEN_R = 0x1F;     // digital enabling the pins.
-    GPIO_PORTF_PUR_R = 0x11;     // enabling pullup resistors
-
-    // configuring for interrupt
-    GPIO_PORTF_IS_R &= ~SW_bits;        //Edge trigger detected
-    GPIO_PORTF_IBE_R &= ~SW_bits;       //Trigger interrupt according to GPIOIEV
-    GPIO_PORTF_IEV_R &= ~SW_bits;       //Trigger interrupt on falling edge
-    GPIO_PORTF_IM_R &= ~SW_bits;        //Mask interrupt bits
-    GPIO_PORTF_ICR_R |= SW_bits;        //clear any prior interrupts
-    GPIO_PORTF_IM_R |= SW_bits;         //enable interrupts for bits corresponding to Mask_Bits
-    // setting priorities using NVIC
-    NVIC_EN0_R |=(1<<30);
-    NVIC_PRI7_R &= 0xFF3FFFFF;
-
-
-}
-
-void GPIO_Intrpt_HANDLER()
-{
-    int x;
-    x=GPIO_PORTF_MIS_R;
-    GPIO_PORTF_IM_R &= ~SW_bits;//sw1 and sw2 masked
-
-    /* pressing Switch 1 -> Send AA
-     * pressing Switch 2 -> Send F0*/
-
-    if(x & 0X10) //interrupt on switch 1
-    {
-        UART5_DR_R = 0xF0;
-
-    }
-    if(x & 0X01) // Interrupt on switch 2
-    {
-        UART5_DR_R = 0xAA;
-    }
-
-
-    //GPIO_PORTF_IM_R |= SW_bits;    // unmasking sw1 and sw2
-
-
-}
-void UART_Intrpt_HANDLER()
-{   UART5_IM_R &= (0<<4);       //Mask UART Rx interrupt
-    if(UART5_FR_R & (1<<6))
-    {
-        if(UART5_DR_R == 0xAA)
-            GPIO_PORTF_DATA_R = GREEN;
-        if(UART5_DR_R == 0XF0)
-            GPIO_PORTF_DATA_R = BLUE;
-    }
-
-        if(UART5_RSR_R & 0x0F)
-            GPIO_PORTF_DATA_R = RED;
-    UART5_ECR_R &= 0xFFFFFFF0;        //Clear UART errors
-    STRELOAD = 1000000*8;                  // for delay of 0.5 sec
-    STCURRENT = 0;
-    STCTRL |= (CLKINT | ENABLE | SYS_INTEN);    // set internal clock, enable the timer,enable interrupt
-    GPIO_PORTF_ICR_R |= SW_bits;   // clearing the interrupt
-}
-
-void SYSTICK_HANDLER()
-{
-    GPIO_PORTF_DATA_R  = 0x00;            // turn off LED LED
-    GPIO_PORTF_ICR_R = SW_bits;         // clear interrupt for port F
-    GPIO_PORTF_IM_R |= SW_bits;        // unmask interrupts for sw1 and sw2
-    UART5_IM_R |= (1<<4);
-}
-
-void main()
-{
-    UART_INIT();
-    GPIO_INIT();
-    while(1){}
-}