diff --git a/ArduPlane/setup.pde b/ArduPlane/setup.pde
index ec9613c969..e5c69636e1 100644
--- a/ArduPlane/setup.pde
+++ b/ArduPlane/setup.pde
@@ -22,7 +22,9 @@ static const struct Menu::command setup_menu_commands[] PROGMEM = {
     {"radio",                       setup_radio},
     {"modes",                       setup_flightmodes},
     {"level",                       setup_level},
+#if !defined( __AVR_ATmega1280__ )
     {"accel",                       setup_accel_scale},
+#endif
     {"compass",                     setup_compass},
     {"declination",         setup_declination},
     {"battery",                     setup_batt_monitor},
@@ -299,6 +301,7 @@ setup_level(uint8_t argc, const Menu::arg *argv)
     return 0;
 }
 
+#if !defined( __AVR_ATmega1280__ )
 static int8_t
 setup_accel_scale(uint8_t argc, const Menu::arg *argv)
 {
@@ -307,6 +310,7 @@ setup_accel_scale(uint8_t argc, const Menu::arg *argv)
     report_ins();
     return(0);
 }
+#endif
 
 static int8_t
 setup_compass(uint8_t argc, const Menu::arg *argv)
diff --git a/libraries/AP_InertialSensor/AP_InertialSensor.cpp b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
index c08e4e8dd9..40a34f0eb8 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor.cpp
+++ b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
@@ -231,6 +231,7 @@ AP_InertialSensor::_init_accel(void (*delay_cb)(unsigned long t), void (*flash_l
 
 }
 
+#if !defined( __AVR_ATmega1280__ )
 // perform accelerometer calibration including providing user instructions and feedback
 bool AP_InertialSensor::calibrate_accel(void (*delay_cb)(unsigned long t), void (*flash_leds_cb)(bool on), void (*send_msg)(const prog_char_t *, ...))
 {
@@ -472,3 +473,6 @@ void AP_InertialSensor::_calibrate_find_delta(float dS[6], float JS[6][6], float
         delta[i] = dS[i];
     }
 }
+
+#endif // __AVR_ATmega1280__
+
diff --git a/libraries/AP_InertialSensor/AP_InertialSensor.h b/libraries/AP_InertialSensor/AP_InertialSensor.h
index 0a11616b9b..67666eafdc 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor.h
+++ b/libraries/AP_InertialSensor/AP_InertialSensor.h
@@ -49,10 +49,12 @@ public:
     ///
     virtual void        init_accel(void (*delay_cb)(unsigned long t), void (*flash_leds_cb)(bool on));
 
+#if !defined( __AVR_ATmega1280__ )
     // perform accelerometer calibration including providing user instructions and feedback
     virtual bool        calibrate_accel(void (*delay_cb)(unsigned long t),
                                         void (*flash_leds_cb)(bool on) = NULL,
                                         void (*send_msg)(const prog_char_t *, ...) = NULL);
+#endif
 
     /// Perform cold-start initialisation for just the gyros.
     ///
@@ -140,11 +142,13 @@ protected:
     virtual void            _init_gyro(void (*delay_cb)(unsigned long t),
                                        void (*flash_leds_cb)(bool on) = NULL);
 
+#if !defined( __AVR_ATmega1280__ )
     // _calibrate_accel - perform low level accel calibration
     virtual bool            _calibrate_accel(Vector3f accel_sample[6], Vector3f& accel_offsets, Vector3f& accel_scale);
     virtual void            _calibrate_update_matrices(float dS[6], float JS[6][6], float beta[6], float data[3]);
     virtual void            _calibrate_reset_matrices(float dS[6], float JS[6][6]);
     virtual void            _calibrate_find_delta(float dS[6], float JS[6][6], float delta[6]);
+#endif
 
     // save parameters to eeprom
     void                    _save_parameters();