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-rwxr-xr-xnuttx/configs/px4fmu/include/board.h26
1 files changed, 18 insertions, 8 deletions
diff --git a/nuttx/configs/px4fmu/include/board.h b/nuttx/configs/px4fmu/include/board.h
index 29ad52c61..60a295f8d 100755
--- a/nuttx/configs/px4fmu/include/board.h
+++ b/nuttx/configs/px4fmu/include/board.h
@@ -265,15 +265,25 @@
/*
* I2C
+ *
+ * The optional _GPIO configurations allow the I2C driver to manually
+ * reset the bus to clear stuck slaves. They match the pin configuration,
+ * but are normally-high GPIOs.
*/
-#define GPIO_I2C1_SCL GPIO_I2C1_SCL_2
-#define GPIO_I2C1_SDA GPIO_I2C1_SDA_2
-
-#define GPIO_I2C2_SCL GPIO_I2C2_SCL_1
-#define GPIO_I2C2_SDA GPIO_I2C2_SDA_1
-
-#define GPIO_I2C3_SCL GPIO_I2C3_SCL_1
-#define GPIO_I2C3_SDA GPIO_I2C3_SDA_1
+#define GPIO_I2C1_SCL GPIO_I2C1_SCL_2
+#define GPIO_I2C1_SDA GPIO_I2C1_SDA_2
+#define GPIO_I2C1_SCL_GPIO (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN8)
+#define GPIO_I2C1_SDA_GPIO (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN9)
+
+#define GPIO_I2C2_SCL GPIO_I2C2_SCL_1
+#define GPIO_I2C2_SDA GPIO_I2C2_SDA_1
+#define GPIO_I2C2_SCL_GPIO (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN10)
+#define GPIO_I2C2_SDA_GPIO (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN11)
+
+#define GPIO_I2C3_SCL GPIO_I2C3_SCL_1
+#define GPIO_I2C3_SDA GPIO_I2C3_SDA_1
+#define GPIO_I2C3_SCL_GPIO (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTA|GPIO_PIN8)
+#define GPIO_I2C3_SDA_GPIO (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTC|GPIO_PIN9)
/*
* I2C busses