AP_RangeFinder: set pin to input before attaching interrupt

this fixes input on AUX6 on CubeBlack
6 years ago · 76a2cd1540
1 changed files with 1 additions and 0 deletions
--- a/libraries/AP_RangeFinder/AP_RangeFinder_PWM.cpp
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_PWM.cpp
@ -91,6 +91,7 @@ void AP_RangeFinder_PWM::check_pin()
				@@ -91,6 +91,7 @@ void AP_RangeFinder_PWM::check_pin()
    }

    // install interrupt handler on rising and falling edge
+    hal.gpio->pinMode(state.pin, HAL_GPIO_INPUT);
    if (!hal.gpio->attach_interrupt(
            state.pin,
            FUNCTOR_BIND_MEMBER(&AP_RangeFinder_PWM::irq_handler,