#include "uart.h"
/**
    @brief The undefined instruction interrupt handler

    If an undefined instruction is encountered, the CPU will start
    executing this function. Just trap here as a debug solution.
*/
void __attribute__((interrupt("UNDEF"))) undefined_instruction_vector(void)
{
    uart_puts("Undefined instruction occured");
    while( 1 )
    {
        /* Do Nothing! */
    }
}