Add two-point accelerometer calibration.

[fw/altos] / src / ao.h

diff --git a/src/ao.h b/src/ao.h
index 65a594c0529ebd8413d1fd6592f3c878673cf6f2..22e8785f2f6a57518628d4a53a794b4a83324819 100644 (file)
--- a/src/ao.h
+++ b/src/ao.h
@@ -117,8 +117,9 @@ ao_panic(uint8_t reason);
  */
 
 /* Our timer runs at 100Hz */
-#define AO_MS_TO_TICKS(ms)     ((ms) / 10)
-#define AO_SEC_TO_TICKS(s)     ((s) * 100)
+#define AO_HERTZ               100
+#define AO_MS_TO_TICKS(ms)     ((ms) / (1000 / AO_HERTZ))
+#define AO_SEC_TO_TICKS(s)     ((s) * AO_HERTZ)
 
 /* Returns the current time in ticks */
 uint16_t
@@ -291,6 +292,12 @@ ao_usb_putchar(char c);
 char
 ao_usb_getchar(void);
 
+/* Poll for a charcter on the USB input queue.
+ * returns AO_READ_AGAIN if none are available
+ */
+char
+ao_usb_pollchar(void);
+
 /* Flush the USB output queue */
 void
 ao_usb_flush(void);
@@ -922,16 +929,17 @@ ao_igniter_init(void);
  */
 
 #define AO_CONFIG_MAJOR        1
-#define AO_CONFIG_MINOR        1
+#define AO_CONFIG_MINOR        2
 
 struct ao_config {
        uint8_t         major;
        uint8_t         minor;
        uint16_t        main_deploy;
-       int16_t         accel_zero_g;
+       int16_t         accel_plus_g;
        uint8_t         radio_channel;
        char            callsign[AO_MAX_CALLSIGN + 1];
        uint8_t         apogee_delay;
+       int16_t         accel_minus_g;
 };
 
 extern __xdata struct ao_config ao_config;