+/* Buttons */
+
+#define AO_EVENT 1
+
+#define AO_BUTTON_COUNT 4
+#define AO_BUTTON_MODE AO_EXTI_MODE_PULL_DOWN
+
+/* INPUT */
+#define AO_BUTTON_0_PORT (&stm_gpioc)
+#define AO_BUTTON_0 8
+
+/* MP */
+#define AO_BUTTON_1_PORT (&stm_gpioc)
+#define AO_BUTTON_1 9
+
+/* RUN */
+#define AO_BUTTON_2_PORT (&stm_gpioc)
+#define AO_BUTTON_2 10
+
+/* LOAD */
+#define AO_BUTTON_3_PORT (&stm_gpioc)
+#define AO_BUTTON_3 11
+
+