E698PM LED test.c
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#include <stdlib.h>
#include <stdio.h>
#define GPIO_DIR_REG *(volatile unsigned int *)(0x80000608) // GPIO direction register
int main(void) {
int i,j;
printf("Hello world!!!");
while (1)
{
for (i=1; i<=0b10000; i<<=1)
{
GPIO_DIR_REG = i;
for (j=0; j<400000; j++); // delay
}
}
// should never reach here
return EXIT_SUCCESS;
}