diff options
Diffstat (limited to 'src/modules/px4iofirmware/mixer.cpp')
| -rw-r--r-- | src/modules/px4iofirmware/mixer.cpp | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/modules/px4iofirmware/mixer.cpp b/src/modules/px4iofirmware/mixer.cpp index a2193b526..e257e7cb8 100644 --- a/src/modules/px4iofirmware/mixer.cpp +++ b/src/modules/px4iofirmware/mixer.cpp @@ -59,6 +59,11 @@ extern "C" { */ #define FMU_INPUT_DROP_LIMIT_US 200000 +/* + * Time that the ESCs need to initialize + */ + #define ESC_INIT_TIME_US 500000 + /* XXX need to move the RC_CHANNEL_FUNCTION out of rc_channels.h and into systemlib */ #define ROLL 0 #define PITCH 1 @@ -69,6 +74,8 @@ extern "C" { /* current servo arm/disarm state */ static bool mixer_servos_armed = false; +static uint64_t time_armed; + /* selected control values and count for mixing */ enum mixer_source { MIX_NONE, @@ -176,8 +183,16 @@ mixer_tick(void) /* save actuator values for FMU readback */ r_page_actuators[i] = FLOAT_TO_REG(outputs[i]); - /* scale to servo output */ - r_page_servos[i] = (outputs[i] * 600.0f) + 1500; + /* scale to control range after init time */ + if (mixer_servos_armed && (hrt_elapsed_time(&time_armed) > ESC_INIT_TIME_US)) { + r_page_servos[i] = (outputs[i] + * (r_page_servo_control_max[i] - r_page_servo_control_min[i])/2 + + (r_page_servo_control_max[i] + r_page_servo_control_min[i])/2); + + /* but use init range from 900 to 2100 right after arming */ + } else { + r_page_servos[i] = (outputs[i] * 600 + 1500); + } } for (unsigned i = mixed; i < IO_SERVO_COUNT; i++) @@ -206,6 +221,7 @@ mixer_tick(void) /* need to arm, but not armed */ up_pwm_servo_arm(true); mixer_servos_armed = true; + time_armed = hrt_absolute_time(); } else if (!should_arm && mixer_servos_armed) { /* armed but need to disarm */ |