diff --git a/src/drivers/boards/px4fmu-v4/board_config.h b/src/drivers/boards/px4fmu-v4/board_config.h
index 7e554c2a74..35350e1570 100644
--- a/src/drivers/boards/px4fmu-v4/board_config.h
+++ b/src/drivers/boards/px4fmu-v4/board_config.h
@@ -122,6 +122,7 @@ __BEGIN_DECLS
 #define PX4_SPI_BUS_RAMTRON	2
 
 /* Use these in place of the spi_dev_e enumeration to select a specific SPI device on SPI1 */
+//#define PX4_SPIDEV_FRAM			0
 #define PX4_SPIDEV_GYRO			1
 #define PX4_SPIDEV_ACCEL_MAG	2
 #define PX4_SPIDEV_BARO			3
diff --git a/src/drivers/boards/px4fmu-v4/px4fmu_spi.c b/src/drivers/boards/px4fmu-v4/px4fmu_spi.c
index bdfa47f62c..30560b717f 100644
--- a/src/drivers/boards/px4fmu-v4/px4fmu_spi.c
+++ b/src/drivers/boards/px4fmu-v4/px4fmu_spi.c
@@ -151,8 +151,24 @@ __EXPORT uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devi
 #ifdef CONFIG_STM32_SPI2
 __EXPORT void stm32_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
 {
-	/* there can only be one device on this bus, so always select it */
-	stm32_gpiowrite(GPIO_SPI_CS_FRAM, !selected);
+	/* SPI select is active low, so write !selected to select the device */
+
+	switch (devid) {
+	case SPIDEV_FLASH:
+		/* Making sure the other peripherals are not selected */
+		stm32_gpiowrite(GPIO_SPI_CS_MS5611, 1);
+		stm32_gpiowrite(GPIO_SPI_CS_FRAM, !selected);
+		break;
+
+	case PX4_SPIDEV_BARO:
+		/* Making sure the other peripherals are not selected */
+		stm32_gpiowrite(GPIO_SPI_CS_FRAM, 1);
+		stm32_gpiowrite(GPIO_SPI_CS_MS5611, !selected);
+		break;
+
+	default:
+		break;
+	}
 }
 
 __EXPORT uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)