Add DiscF407 target for developers (#5442)

* Add DiscF407 target for developers

* Requested changes

src/main/target/STM32F4DISCOVERY/target.c

@@ -0,0 +1,37 @@
+/*
+ * This file is part of Cleanflight.
+ *
+ * Cleanflight is free software: you can redistribute it and/or modify
+ * it 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.
+ *
+ * Cleanflight 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 Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+
+#include <platform.h>
+#include "drivers/io.h"
+
+#include "drivers/dma.h"
+#include "drivers/timer.h"
+#include "drivers/timer_def.h"
+
+const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
+
+    DEF_TIM(TIM4, CH4, PB9,  TIM_USE_PPM | TIM_USE_LED, 1,  0 ),     // PPM IN
+    DEF_TIM(TIM3, CH4, PB1,  TIM_USE_MOTOR, 0, 0 ),                  // S1_OUT - TIM3_UP - BURST
+    DEF_TIM(TIM3, CH3, PB0,  TIM_USE_MOTOR, 0, 0 ),                  // S2_OUT - TIM3_UP - BURST
+    DEF_TIM(TIM2, CH3, PA2,  TIM_USE_MOTOR, 0, 0 ),                  // S3_OUT - TIM2_UP - BURST
+    DEF_TIM(TIM2, CH4, PA3,  TIM_USE_MOTOR, 0, 1 ),                  // S4_OUT - TIM2_UP - BURST
+    DEF_TIM(TIM1, CH3, PA10, TIM_USE_MOTOR, 0, 1 ),                  // S5_OUT - TIM1_UP - BURST
+    DEF_TIM(TIM1, CH1, PA8,  TIM_USE_MOTOR, 0, 1 ),                  // S6_OUT - TIM1_UP - BURST
+};
+

src/main/target/STM32F4DISCOVERY/target.h

@@ -0,0 +1,127 @@
+/*
+ * This file is part of Cleanflight.
+ *
+ * Cleanflight is free software: you can redistribute it and/or modify
+ * it 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.
+ *
+ * Cleanflight 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 Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define TARGET_BOARD_IDENTIFIER "SDF4"
+#define USBD_PRODUCT_STRING     "DISCF4"
+
+//LEDs
+#define LED0_PIN                PD12
+#define LED1_PIN                PD13
+
+#define LED0_INVERTED
+#define LED1_INVERTED
+
+#define USE_DSHOT_DMAR
+
+// MPU6500 interrupt
+#define USE_EXTI
+#define MPU_INT_EXTI            PC4
+#define USE_MPU_DATA_READY_SIGNAL
+//#define DEBUG_MPU_DATA_READY_INTERRUPT
+
+#define MPU6500_CS_PIN          PC4
+#define MPU6500_SPI_INSTANCE    SPI1
+
+// ACC section -- start
+#define USE_ACC
+#define USE_FAKE_ACC
+#define USE_ACC_MPU6500
+#define USE_ACC_SPI_MPU6500
+#define ACC_MPU6500_ALIGN       CW180_DEG_FLIP
+// ACC section -- end
+
+// GYRO section -- start
+#define USE_GYRO
+#define USE_FAKE_GYRO
+#define USE_GYRO_MPU6500
+#define USE_GYRO_SPI_MPU6500
+#define GYRO_MPU6500_ALIGN      CW180_DEG_FLIP
+// GYRO section -- end
+
+#define USE_VCP
+#define USB_MSC
+#define MSC_BUTTON              PA0
+#define VBUS_SENSING_PIN        PA9
+#define VBUS_SENSING_ENABLED
+
+#define USE_UART1
+#define UART1_RX_PIN            PB7
+#define UART1_TX_PIN            PB6
+
+#define USE_UART2
+#define UART2_RX_PIN            PA3
+#define UART2_TX_PIN            PA2
+
+#define USE_UART3
+#define UART3_RX_PIN            PB11
+#define UART3_TX_PIN            PB10
+
+#define USE_UART4
+#define UART4_RX_PIN            PA1
+#define UART4_TX_PIN            PA0
+
+#define USE_UART6
+#define UART6_RX_PIN            PC7
+#define UART6_TX_PIN            PC6
+
+#define SERIAL_PORT_COUNT       6 //VCP, USART1, USART3, USART4, USART6
+
+#define USE_ESCSERIAL
+#define ESCSERIAL_TIMER_TX_HARDWARE 0 // PWM 1
+
+//SPI
+#define USE_SPI
+
+#define USE_SPI_DEVICE_1
+
+#define USE_SPI_DEVICE_2
+#define SPI2_SCK_PIN            PB13
+#define SPI2_MISO_PIN           PB14
+#define SPI2_MOSI_PIN           PB15
+
+#define USE_SDCARD
+#define SDCARD_SPI_INSTANCE             SPI2
+#define SDCARD_SPI_CS_PIN               PD8
+// SPI2 is on the APB1 bus whose clock runs at 84MHz. Divide to under 400kHz for init:
+#define SDCARD_SPI_INITIALIZATION_CLOCK_DIVIDER 256 // 328kHz
+// Divide to under 25MHz for normal operation:
+#define SDCARD_SPI_FULL_SPEED_CLOCK_DIVIDER 4 // 5,5MHz
+
+#define SDCARD_DMA_CHANNEL_TX                   DMA1_Stream5
+#define SDCARD_DMA_CHANNEL                      0
+
+#define USE_ADC
+#define DEFAULT_VOLTAGE_METER_SOURCE VOLTAGE_METER_ADC
+#define DEFAULT_CURRENT_METER_SOURCE CURRENT_METER_ADC
+#define BOARD_HAS_VOLTAGE_DIVIDER
+#define VBAT_ADC_PIN            PC1
+#define CURRENT_METER_ADC_PIN   PC2
+
+#define DEFAULT_RX_FEATURE      FEATURE_RX_SERIAL
+#define SERIALRX_PROVIDER       SERIALRX_SBUS
+
+#define USE_SERIAL_4WAY_BLHELI_INTERFACE
+
+#define TARGET_IO_PORTA         0xffff
+#define TARGET_IO_PORTB         0xffff
+#define TARGET_IO_PORTC         0xffff
+#define TARGET_IO_PORTD         0xffff
+
+#define USABLE_TIMER_CHANNEL_COUNT 7
+#define USED_TIMERS             ( TIM_N(1) | TIM_N(2) | TIM_N(3) | TIM_N(4) | TIM_N(5) | TIM_N(8))

src/main/target/STM32F4DISCOVERY/target.mk

@@ -0,0 +1,12 @@
+F405_TARGETS    += $(TARGET)
+FEATURES        += VCP SDCARD MSC
+
+TARGET_SRC = \
+            drivers/accgyro/accgyro_fake.c \
+            drivers/accgyro/accgyro_mpu.c \
+            drivers/accgyro/accgyro_mpu6500.c \
+            drivers/accgyro/accgyro_spi_mpu6500.c
+
+TARGET_SRC += \
+            msc/usbd_storage_sd_spi.c \
+            msc/usbd_msc_desc.c