#define AO_PWM_TIMER_ENABLE STM_RCC_APB1ENR_TIM3EN
#define AO_PWM_TIMER_SCALE 32
-/* Motor */
+/* Servo */
-#define AO_MOTOR_DIR_GPIO (&stm_gpiob)
-#define AO_MOTOR_DIR_PIN 0
-#define AO_MOTOR_SPEED_PWM 0
+#define AO_SERVO_DIR_PORT (&stm_gpiob)
+#define AO_SERVO_DIR_BIT 0
+#define AO_SERVO_SPEED_PWM 0
+
+/* limit 2 */
+#define AO_SERVO_LIMIT_FORE_PORT (&stm_gpiob)
+#define AO_SERVO_LIMIT_FORE_BIT 6
+
+/* limit 1 */
+#define AO_SERVO_LIMIT_BACK_PORT (&stm_gpiob)
+#define AO_SERVO_LIMIT_BACK_BIT 7
#endif /* _AO_PINS_H_ */