[CONFIG] Add NUCLEOF446 Development Board (#12678)

Add NUCLEOF446 Development Board

Makefile

@@ -126,7 +126,7 @@ endif
 # default xtal value
 HSE_VALUE       ?= 8000000
 
-CI_TARGETS       := $(BASE_TARGETS) $(filter CRAZYBEEF4SX1280 CRAZYBEEF4FR IFLIGHT_BLITZ_F722, $(BASE_CONFIGS))
+CI_TARGETS       := $(BASE_TARGETS) $(filter CRAZYBEEF4SX1280 CRAZYBEEF4FR IFLIGHT_BLITZ_F722 NUCLEOF446, $(BASE_CONFIGS))
 include $(ROOT)/src/main/target/$(TARGET)/target.mk
 
 REVISION := norevision

src/main/target/STM32F446/target.h

@@ -0,0 +1,78 @@
+/*
+ * This file is part of Betaflight.
+ *
+ * Betaflight is free software. You can redistribute this software
+ * and/or modify this software under the terms of the GNU General
+ * Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * Betaflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this software.
+ *
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define TARGET_BOARD_IDENTIFIER         "S446"
+
+#define USBD_PRODUCT_STRING             "Betaflight STM32F446"
+
+#define USE_I2C_DEVICE_1
+#define USE_I2C_DEVICE_2
+#define USE_I2C_DEVICE_3
+
+#define USE_UART1
+#define USE_UART2
+// #define USE_UART6
+
+#define UNIFIED_SERIAL_PORT_COUNT       3
+#define SERIAL_PORT_COUNT               (UNIFIED_SERIAL_PORT_COUNT + 3)
+
+#define USE_INVERTER
+
+#define USE_SPI_DEVICE_1
+#define USE_SPI_DEVICE_2
+#define USE_SPI_DEVICE_3
+
+#define TARGET_IO_PORTA                 (0xffff & ~(BIT(14)|BIT(13)))
+#define TARGET_IO_PORTB                 (0xffff & ~(BIT(2)))
+#define TARGET_IO_PORTC                 (0xffff & ~(BIT(15)|BIT(14)|BIT(13)))
+#define TARGET_IO_PORTD                 BIT(2)
+
+// #define USABLE_TIMER_CHANNEL_COUNT      8
+// #define USED_TIMERS                     (TIM_N(1) | TIM_N(2) | TIM_N(3) | TIM_N(8))
+
+#define USE_I2C
+#define I2C_FULL_RECONFIGURABILITY
+
+#ifdef USE_SDCARD
+#define USE_SDCARD_SPI
+#define USE_SDCARD_SDIO
+#endif
+
+#define USE_SPI
+#define SPI_FULL_RECONFIGURABILITY
+#define USE_SPI_DMA_ENABLE_EARLY
+
+#define USE_VCP
+
+#define USE_SOFTSERIAL1
+#define USE_SOFTSERIAL2
+
+#define USE_USB_DETECT
+
+#define USE_ESCSERIAL
+
+#define USE_ADC
+
+#define USE_EXTI
+
+#define FLASH_PAGE_SIZE                 ((uint32_t)0x4000) // 16K sectors

src/main/target/STM32F446/target.mk

@@ -0,0 +1,16 @@
+TARGET_MCU        := STM32F446xx
+TARGET_MCU_FAMILY := STM32F4
+
+TARGET_SRC = \
+            drivers/accgyro/accgyro_mpu6500.c \
+            drivers/accgyro/accgyro_spi_mpu6500.c \
+            drivers/accgyro/accgyro_spi_mpu9250.c \
+            drivers/accgyro/accgyro_virtual.c \
+            drivers/barometer/barometer_virtual.c \
+            drivers/compass/compass_virtual.c \
+            drivers/rx/rx_nrf24l01.c \
+            rx/nrf24_cx10.c \
+            rx/nrf24_inav.c \
+            rx/nrf24_h8_3d.c \
+            rx/nrf24_syma.c \
+            rx/nrf24_v202.c