Add FreeAxisF4 target (#199)

* Add FreeAxisF4 target

Adds target for FreeAxis F4 25A AIO FC based on MATEKF411 target with the addition of a flash chip and BMI270.

Solves: betaflight/unified-targets#1149

Discord issue: https://discord.com/channels/868013470023548938/1160296288609390592

Thanks to J. R. on GitHub for the factory config (https://discord.com/channels/868013470023548938/868013470518505494/1167219861601124392)

* Fix typos

* Change manufacturer to CLNE

* Add EOL

* Update config.h

* Remove BMP280 define

* Update configs/FREEAXISF4/config.h

Remove USE_BARO since no specific hardware is defined

Co-authored-by: Mark Haslinghuis <[email protected]>

* Remove BARO I2C define

---------

Co-authored-by: Mark Haslinghuis <[email protected]>

configs/FREEAXISF4/config.h

@@ -0,0 +1,95 @@
+/*
+ * 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 FC_TARGET_MCU     STM32F411
+
+#define BOARD_NAME        FREEAXISF4
+#define MANUFACTURER_ID   CLNE
+
+#define USE_ACC
+#define USE_GYRO
+#define USE_ACCGYRO_BMI270
+#define USE_FLASH
+#define USE_FLASH_W25N01G
+#define USE_MAX7456
+
+#define BEEPER_PIN           PB2
+#define MOTOR1_PIN           PB4
+#define MOTOR2_PIN           PB5
+#define MOTOR3_PIN           PB6
+#define MOTOR4_PIN           PB7
+#define MOTOR5_PIN           PB3
+#define MOTOR6_PIN           PB10
+#define LED_STRIP_PIN        PA8
+#define UART1_TX_PIN         PA9
+#define UART2_TX_PIN         PA2
+#define UART1_RX_PIN         PA10
+#define UART2_RX_PIN         PA3
+#define SOFTSERIAL1_TX_PIN   PA0
+#define SOFTSERIAL1_RX_PIN   PA0
+#define I2C1_SCL_PIN         PB8
+#define I2C1_SDA_PIN         PB9
+#define LED0_PIN             PC13
+#define LED1_PIN             PC14
+#define SPI1_SCK_PIN         PA5
+#define SPI2_SCK_PIN         PB13
+#define SPI1_SDI_PIN         PA6
+#define SPI2_SDI_PIN         PB14
+#define SPI1_SDO_PIN         PA7
+#define SPI2_SDO_PIN         PB15
+#define ADC_VBAT_PIN         PB0
+#define ADC_CURR_PIN         PB1
+#define FLASH_CS_PIN         PA15
+#define MAX7456_SPI_CS_PIN   PB12
+#define GYRO_1_EXTI_PIN      PA1
+#define GYRO_2_EXTI_PIN      NONE
+#define GYRO_1_CS_PIN        PA4
+#define USB_DETECT_PIN       PC15
+
+#define TIMER_PIN_MAPPING \
+    TIMER_PIN_MAP( 0, PA3 , 3, -1) \
+    TIMER_PIN_MAP( 1, PB4 , 2,  0) \
+    TIMER_PIN_MAP( 2, PB5 , 2,  0) \
+    TIMER_PIN_MAP( 3, PB6 , 2,  0) \
+    TIMER_PIN_MAP( 4, PB7 , 2,  0) \
+    TIMER_PIN_MAP( 5, PB3 , 1,  0) \
+    TIMER_PIN_MAP( 6, PB10, 1,  0) \
+    TIMER_PIN_MAP( 7, PA0 , 2,  0) \
+    TIMER_PIN_MAP( 8, PA2 , 2,  0) \
+    TIMER_PIN_MAP( 9, PA8 , 1,  0)
+
+#define ADC1_DMA_OPT        1
+
+#define DEFAULT_DSHOT_BURST DSHOT_DMAR_OFF
+#define DEFAULT_DSHOT_BITBANG DSHOT_BITBANG_OFF
+#define MAG_I2C_INSTANCE (I2CDEV_1)
+#define DEFAULT_BLACKBOX_DEVICE BLACKBOX_DEVICE_FLASH
+#define DEFAULT_CURRENT_METER_SOURCE CURRENT_METER_ADC
+#define DEFAULT_VOLTAGE_METER_SOURCE VOLTAGE_METER_ADC
+#define BEEPER_INVERTED
+#define SYSTEM_HSE_MHZ 8
+#define FLASH_SPI_INSTANCE SPI2
+#define MAX7456_SPI_INSTANCE SPI2
+#define USE_SPI_GYRO
+#define GYRO_1_SPI_INSTANCE SPI1
+#define GYRO_1_ALIGN CW180_DEG