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-rw-r--r--src/drivers/boards/px4io-v2/board_config.h2
-rw-r--r--src/drivers/boards/px4io-v2/px4iov2_init.c2
-rw-r--r--src/modules/px4iofirmware/px4io.h2
3 files changed, 2 insertions, 4 deletions
diff --git a/src/drivers/boards/px4io-v2/board_config.h b/src/drivers/boards/px4io-v2/board_config.h
index 8152ea4d4..ef9bb5cad 100644
--- a/src/drivers/boards/px4io-v2/board_config.h
+++ b/src/drivers/boards/px4io-v2/board_config.h
@@ -114,7 +114,7 @@
/* XXX these should be UART pins */
#define GPIO_SBUS_INPUT (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN11)
#define GPIO_SBUS_OUTPUT (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define GPIO_SBUS_OENABLE (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN4)
+#define GPIO_SBUS_OENABLE (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN4)
/*
* High-resolution timer
diff --git a/src/drivers/boards/px4io-v2/px4iov2_init.c b/src/drivers/boards/px4io-v2/px4iov2_init.c
index ccd01edf5..9f8c0eeb2 100644
--- a/src/drivers/boards/px4io-v2/px4iov2_init.c
+++ b/src/drivers/boards/px4io-v2/px4iov2_init.c
@@ -124,8 +124,6 @@ __EXPORT void stm32_boardinitialize(void)
stm32_configgpio(GPIO_ADC_VSERVO);
stm32_configgpio(GPIO_SBUS_INPUT); /* xxx alternate function */
-
- stm32_gpiowrite(GPIO_SBUS_OUTPUT, false);
stm32_configgpio(GPIO_SBUS_OUTPUT);
/* sbus output enable is active low - disable it by default */
diff --git a/src/modules/px4iofirmware/px4io.h b/src/modules/px4iofirmware/px4io.h
index 18c7468f6..d7f3e9adb 100644
--- a/src/modules/px4iofirmware/px4io.h
+++ b/src/modules/px4iofirmware/px4io.h
@@ -160,7 +160,7 @@ extern pwm_limit_t pwm_limit;
# define PX4IO_RELAY_CHANNELS 0
# define POWER_SPEKTRUM(_s) stm32_gpiowrite(GPIO_SPEKTRUM_PWR_EN, (_s))
-# define ENABLE_SBUS_OUT(_s) stm32_gpiowrite(GPIO_SBUS_OENABLE, (_s))
+# define ENABLE_SBUS_OUT(_s) stm32_gpiowrite(GPIO_SBUS_OENABLE, !(_s))
# define VDD_SERVO_FAULT (!stm32_gpioread(GPIO_SERVO_FAULT_DETECT))