/* Stack runs from above the allocated __data space to 0xfe, which avoids
* writing to 0xff as that triggers the stack overflow indicator
*/
-#define AO_STACK_START 0x68
+#define AO_STACK_START 0x78
#define AO_STACK_END 0xfe
#define AO_STACK_SIZE (AO_STACK_END - AO_STACK_START + 1)
* ao_adc.c
*/
-#define AO_ADC_RING 128
+#define AO_ADC_RING 64
+#define ao_adc_ring_next(n) (((n) + 1) & (AO_ADC_RING - 1))
+#define ao_adc_ring_prev(n) (((n) - 1) & (AO_ADC_RING - 1))
/*
* One set of samples read from the A/D converter
};
extern __xdata struct ao_adc ao_flight_data;
-extern __pdata enum flight_state ao_flight_state;
+extern __pdata enum ao_flight_state ao_flight_state;
extern __pdata uint16_t ao_flight_tick;
extern __pdata int16_t ao_flight_accel;
extern __pdata int16_t ao_flight_pres;
void
flush(void);
+/*
+ * ao_ignite.c
+ */
+
+enum ao_igniter {
+ ao_igniter_drogue = 0,
+ ao_igniter_main = 1
+};
+
+void
+ao_ignite(enum ao_igniter igniter);
+
+enum ao_igniter_status {
+ ao_igniter_unknown, /* unknown status (ambiguous voltage) */
+ ao_igniter_ready, /* continuity detected */
+ ao_igniter_active, /* igniter firing */
+ ao_igniter_open, /* open circuit detected */
+};
+
+enum ao_igniter_status
+ao_igniter_status(enum ao_igniter igniter);
+
+void
+ao_igniter_init(void);
+
#endif /* _AO_H_ */