COUNTER_COUNT_DIRECTION_BACKWARD
COUNTER_COUNT_DIRECTION_BACKWARD;
[COUNTER_COUNT_DIRECTION_BACKWARD] = "backward"
COUNTER_COUNT_DIRECTION_FORWARD : COUNTER_COUNT_DIRECTION_BACKWARD;
*direction = (cr1 & TIM_CR1_DIR) ? COUNTER_COUNT_DIRECTION_BACKWARD :
: COUNTER_COUNT_DIRECTION_BACKWARD;