if (config_data.accel_cal_plus != AltosLib.MISSING && config_data.accel_cal_minus != AltosLib.MISSING)
link.printf("c a %d %d\n",
config_data.accel_cal_plus, config_data.accel_cal_minus);
if (config_data.accel_cal_plus != AltosLib.MISSING && config_data.accel_cal_minus != AltosLib.MISSING)
link.printf("c a %d %d\n",
config_data.accel_cal_plus, config_data.accel_cal_minus);