From 372b807bd1a2d0eb61d95a823194e4fa4b5db107 Mon Sep 17 00:00:00 2001 From: Sanyog Date: Fri, 20 Sep 2024 20:18:04 +0530 Subject: [PATCH] Add GPIO PortF initialiazation --- main.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/main.c b/main.c index ee03b59..1b5fc6d 100644 --- a/main.c +++ b/main.c @@ -6,4 +6,20 @@ #define STRELOAD *((volatile uint32_t *) 0xE000E014) // RELOAD VALUE #define STCURRENT *((volatile uint32_t *) 0xE000E018) // CURRENT VALUE #define CLOCK_HZ 16000000 // CLOCK FREQUENCY OF EK-TM4C123GXL -#define SYSTICK_RELOAD_VALUE(us) ((CLOCK_HZ / 1000000) * (us) - 1) // SYSTICK RELOAD VALUE \ No newline at end of file +#define SYSTICK_RELOAD_VALUE(us) ((CLOCK_HZ / 1000000) * (us) - 1) // SYSTICK RELOAD VALUE + +void GPIO_PORT_F_init(void) +{ + SYSCTL_RCGC2_R |= 0x00000020; // ENABLE CLOCK TO GPIOF + GPIO_PORTF_LOCK_R = 0x4C4F434B; // UNLOCK COMMIT REGISTER + GPIO_PORTF_CR_R = 0x1F; // MAKE PORTF0 CONFIGURABLE + GPIO_PORTF_DEN_R = 0x1F; // SET PORTF DIGITAL ENABLE + GPIO_PORTF_DIR_R = 0x0E; // SET PF0, PF4 as input and PF1, PF2 and PF3 as output + GPIO_PORTF_PUR_R = 0x11; // PORTF PF0 and PF4 IS PULLED UP + + NVIC_EN0_R |= 1 << 30; + GPIO_PORTF_IS_R = 0x00; // Make it edge-sensitive + GPIO_PORTF_IBE_R = 0x00; // Trigger on one edge + GPIO_PORTF_IEV_R = 0x00; // Falling edge event + GPIO_PORTF_IM_R |= 0x11; // Unmask interrupts for PF0 and PF4 +}