EmbeddedLab2023/Blink/main.c

62 lines
1.0 KiB
C

#include <stdint.h>
#include "tm4c123gh6pm.h"
#define ZERO_DEF 0
/**
* main.c
*/
void counter_loop (void);
int main(void)
/*
* GPIODATA ->> 0xE
* GPIODIR ->> COnfigure each pin as I/P or O/P >> <0000 1110> = 0xE
* GPIOPCTL
GPIOSLR -- Slew Rate Control
x GPIOPUR -- Pull Up Enable -- 0x11
x GPIOPDR -- Pull Down Enable
x GPIOODR -- OpenDrain
x GPIODEN -- GPIO Digital Enable -- 0x00011111 >> 0x1F
*/
{
register uint32_t x = ZERO_DEF;
SYSCTL_RCGC2_R |= SYSCTL_RCGC2_GPIOF;
GPIO_PORTF_DEN_R = 0x1F;
GPIO_PORTF_PUR_R = 0x11;
GPIO_PORTF_DIR_R = 0x0E;
GPIO_PORTF_DATA_R = 0xE;
while(1)
{
GPIO_PORTF_DATA_R = 0x0;
GPIO_PORTF_DATA_R = 0x2;
GPIO_PORTF_DATA_R = 0x4;
GPIO_PORTF_DATA_R = 0x8;
GPIO_PORTF_DATA_R = 0xE;
}
while (1)
{
x++;
counter_loop();
}
}
void counter_loop (void)
{
register uint32_t count=10;
while(count>0)
count--;
}