Got UART interrupts working

quad/sw/comm_dev/Debug/comm_dev.elf

quad/sw/comm_dev/Debug/comm_dev.elf.size

quad/sw/comm_dev/Debug/src/PID.o

quad/sw/comm_dev/Debug/src/actuator_command_processing.d

quad/sw/comm_dev/Debug/src/actuator_command_processing.o

quad/sw/comm_dev/Debug/src/commands.d

quad/sw/comm_dev/Debug/src/commands.o

quad/sw/comm_dev/Debug/src/communication.d

quad/sw/comm_dev/Debug/src/communication.o

quad/sw/comm_dev/Debug/src/control_algorithm.d

quad/sw/comm_dev/Debug/src/control_algorithm.o

quad/sw/comm_dev/Debug/src/controllers.d

quad/sw/comm_dev/Debug/src/controllers.o

quad/sw/comm_dev/Debug/src/conversion.o

quad/sw/comm_dev/Debug/src/iic_mpu9150_utils.o

quad/sw/comm_dev/Debug/src/initialize_components.d

quad/sw/comm_dev/Debug/src/initialize_components.o

quad/sw/comm_dev/Debug/src/log_data.d

quad/sw/comm_dev/Debug/src/log_data.o

quad/sw/comm_dev/Debug/src/main.d