EE24MT029
/
Group21_Lab5
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add comments

This commit is contained in:
Sanyog Nevase Nevase 2024-09-20 21:50:30 +05:30
parent 896914490e
commit 7169a51106
1 changed files with 15 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
main.c
View File

@ -1,3 +1,9 @@
/*
Problem Statement:
Write a program where the press of a switch is detected by a GPIO interrupt. On each button press the interrupt handler should toggle the state of RED LED.
*/
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include "tm4c123gh6pm.h" #include "tm4c123gh6pm.h"
@ -18,10 +24,10 @@ void GPIO_PORT_F_init(void)
GPIO_PORTF_PUR_R = 0x11; // PORTF PF0 and PF4 IS PULLED UP GPIO_PORTF_PUR_R = 0x11; // PORTF PF0 and PF4 IS PULLED UP
NVIC_EN0_R |= 1 << 30; NVIC_EN0_R |= 1 << 30;
GPIO_PORTF_IS_R = 0x00; // Make it edge-sensitive GPIO_PORTF_IS_R = 0x00; // INTERRUPT SENSE EDGE SENSITIVE
GPIO_PORTF_IBE_R = 0x00; // Trigger on one edge GPIO_PORTF_IBE_R = 0x00; // INTERRUPT GENERATION IS CONTROLLED BY THE GPIO INTERRUPT EVENT
GPIO_PORTF_IEV_R = 0x00; // Falling edge event GPIO_PORTF_IEV_R = 0x00; // INTERRUPT EVENT FALLING EDGE
GPIO_PORTF_IM_R |= 0x11; // Unmask interrupts for PF0 and PF4 GPIO_PORTF_IM_R |= 0x11; // INTERRUPT MASK ENABLE FOR SWITCH1 AND SWITCH2
} }
void systick_setting(void) // SYSTICK SETUP FUNCTION void systick_setting(void) // SYSTICK SETUP FUNCTION
{ {
@ -30,7 +36,7 @@ void systick_setting(void) // SYSTICK SETUP FUNCTION
STCURRENT = 0; // Clear current value STCURRENT = 0; // Clear current value
} }
void delay(int us) //DEFINING DELAY FUNCTION void delay(int us) // DEFINING DELAY FUNCTION
{ {
STRELOAD = SYSTICK_RELOAD_VALUE(us); // RELOAD VALUE FOR REQUIRED DELAY STRELOAD = SYSTICK_RELOAD_VALUE(us); // RELOAD VALUE FOR REQUIRED DELAY
STCURRENT = 0; // Clear STCURRENT STCURRENT = 0; // Clear STCURRENT