Uart1 and Uart2 are broken due to initialization without baudrate.

[AlexisTM]

Adding CFLAGS += -DENABLE_UART2 (or UART1) will break the software as the uartInit functions are called without the baudrate specified which is required for the function call.

crazyflie-firmware/src/drivers/src/uart2.c

Line 47 in d8d92d1

void uart2Init(const uint32_t baudrate)

crazyflie-firmware/src/modules/src/system.c

Lines 150 to 155 in 741a786

	#ifdef ENABLE_UART1
	uart1Init();
	#endif
	#ifdef ENABLE_UART2
	uart2Init();
	#endif

[krichardsson]

Seems as the uart init functions were modified at some point to support baudrate, but the calls in the ifdefs were not.
When fixed, ENABLE_UART1 and ENABLE_UART2 should be added to the .travis.yml file to avoid similar problems in the future.

[AlexisTM]

I guess the default of UART1 is 9600 (available in uart1.h) and I would propose uart2 to be 115200 by default (It is the roadrunner uart -green screw plug-)

[krichardsson]

Fixed!