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AP_HAL_ChibiOS: hwdef for GEPRCF745BTHD
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YI-BOYANG authored and andyp1per committed Aug 5, 2024
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99 changes: 99 additions & 0 deletions libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/README.md
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# GEPRC TAKER F745 BT Flight Controller

The TAKER F745 BT is a flight controller produced by [GEPRC](https://geprc.com/).

## Features

- STM32F745 microcontroller
- MPU6000+ICM42688 dual IMU
- BMP280 barometer
- microSD based 512MB flash logging
- AT7456E OSD
- 7 UARTs
- 8 PWM outputs

## Pinout

![TAKER F745 BT Board](TAKER_F745_BT_Board_Top.jpg "GEPRCF745BTHD")
![TAKER F745 BT Board](TAKER_F745_BT_Board_Bottom.jpg "GEPRCF745BTHD")

## UART Mapping

The UARTs are marked Rn and Tn in the above pinouts. The Rn pin is the
receive pin for UARTn. The Tn pin is the transmit pin for UARTn.

- SERIAL0 -> USB
- SERIAL1 -> UART1 (DisplayPort, DMA-enabled)
- SERIAL2 -> UART2 (RCIN, DMA-enabled)
- SERIAL3 -> UART3 (connected to internal BT module, not currently usable by ArduPilot)
- SERIAL4 -> UART4 (GPS)
- SERIAL6 -> UART6 (User)
- SERIAL7 -> UART7 (User)
- SERIAL8 -> UART8 (ESC Telemetry)

## RC Input

RC input is configured by default via the USAR2 RX input. It supports all unidirectional RC protocols except PPM. FPort and full duplex protocols, like CRSF/ELRS, will need to use TX2 also.

Note:
If the receiver is FPort or a full duplex protocol, then the receiver must be tied to the USART2 TX pin and [SERIAL2_OPTIONS](https://ardupilot.org/copter/docs/parameters.html#serial2-options) = 7 (invert TX/RX, half duplex), and [RSSI_TYPE](https://ardupilot.org/copter/docs/parameters.html#rssi-type) =3.

## FrSky Telemetry

FrSky Telemetry is supported using the Tx pin of any UART including SERIAL2/UART2. You need to set the following parameters to enable support for FrSky S.PORT (example shows SERIAL3).

- SERIAL3_PROTOCOL 10
- SERIAL3_OPTIONS 7

## OSD Support

The TAKER F745 BT supports analog OSD using its internal OSD chip and simultaneously HD goggle DisplayPort OSDs via the HD VTX connector.

## VTX Support

The SH1.0-6P connector supports a standard DJI HD VTX connection. Pin 1 of the connector is 12v (or VBAT by solder pad selection) so be careful not to connect to devices expecting 5v.

## PWM Output

The TAKER F745 BT supports up to 9 PWM outputs. The pads for motor output
M1 to M4 are on the esc connector, M5-M8 are solder pads, plus M9 is defaulted for serial LED strip or can be used as another PWM output.

The PWM is in 4 groups:

- PWM 1-4 in group1
- PWM 5-6 in group2
- PWM 7-8 in group3
- PWM 9 in group4

Channels within the same group need to use the same output rate. If
any channel in a group uses DShot then all channels in the group need
to use DShot. Channels 1-4 support bi-directional DShot.

## Battery Monitoring

The board has a internal voltage sensor and connections on the ESC connector for an external current sensor input.
The voltage sensor can handle up to 6S.
LiPo batteries.

The default battery parameters are:

- BATT_MONITOR 4
- BATT_VOLT_PIN 13
- BATT_VOLT_SCALE 11.0
- BATT_CURR_PIN 12
- BATT_CURR_SCALE 28.5

## Compass

The TAKER F745 BT does not have a builtin compass, but you can attach an external compass using I2C on the SDA and SCL pads.

## Loading Firmware

Initial firmware load can be done with DFU by plugging in USB with the
bootloader button pressed. Then you should load the "with_bl.hex"
firmware, using your favourite DFU loading tool.

Once the initial firmware is loaded you can update the firmware using
any ArduPilot ground station software. Updates should be done with the
*.apj firmware files.

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4 changes: 4 additions & 0 deletions libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/defaults.parm
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# setup for LEDs on chan9
SERVO9_FUNCTION 120

OSD_TYPE2 5
54 changes: 54 additions & 0 deletions libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/hwdef-bl.dat
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# hw definition file for processing by chibios_pins.py
# for GEPRFF745-BT-HD bootloader

# MCU class and specific type
MCU STM32F7xx STM32F745xx

# board ID for firmware load
APJ_BOARD_ID AP_HW_GEPRCF745BTHD

# crystal frequency, setup to use external oscillator
OSCILLATOR_HZ 8000000

define STM32_LSECLK 32768U
define STM32_LSEDRV (3U << 3U)

FLASH_SIZE_KB 1024

# bootloader starts at zero offset
FLASH_RESERVE_START_KB 0

# the location where the bootloader will put the firmware
FLASH_BOOTLOADER_LOAD_KB 96


# order of UARTs (and USB)
SERIAL_ORDER OTG1

# PA10 IO-debug-console
PA11 OTG_FS_DM OTG1
PA12 OTG_FS_DP OTG1

PA13 JTMS-SWDIO SWD
PA14 JTCK-SWCLK SWD

PD2 BUZZER OUTPUT LOW PULLDOWN

PC13 LED_BOOTLOADER OUTPUT LOW
define HAL_LED_ON 0

# Motors for esc init
PB0 PWMOUT1 OUTPUT LOW
PB1 PWMOUT2 OUTPUT LOW
PB5 PWMOUT3 OUTPUT LOW
PB4 PWMOUT4 OUTPUT LOW
PD12 PWMOUT5 OUTPUT LOW
PD13 PWMOUT6 OUTPUT LOW
PC8 PWMOUT7 OUTPUT LOW
PC9 PWMOUT8 OUTPUT LOW

# Add CS pins to ensure they are high in bootloader
PA15 SDCARD_CS CS
PE4 MAX7456_CS CS
PA4 MPU6000_CS CS
PB12 ICM42605_CS CS
174 changes: 174 additions & 0 deletions libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/hwdef.dat
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# hw definition file for processing by chibios_pins.py
# for TAKER F745 BT hardware.
# thanks to betaflight for pin information

# MCU class and specific type
MCU STM32F7xx STM32F745xx

# board ID for firmware load
APJ_BOARD_ID AP_HW_GEPRCF745BTHD

# crystal frequency, setup to use external oscillator
OSCILLATOR_HZ 8000000

FLASH_SIZE_KB 1024

# leave 2 sectors free
FLASH_RESERVE_START_KB 96


# only one I2C bus
I2C_ORDER I2C1

# I2C1 for baro
PB8 I2C1_SCL I2C1
PB9 I2C1_SDA I2C1

# order of UARTs (and USB),
SERIAL_ORDER OTG1 USART1 USART2 USART3 UART4 EMPTY USART6 UART7 UART8

# buzzer
#define HAL_BUZZER_PIN 80

# PA10 IO-debug-console
PA11 OTG_FS_DM OTG1
PA12 OTG_FS_DP OTG1

PA13 JTMS-SWDIO SWD
PA14 JTCK-SWCLK SWD

# SPI1 for MPU6000
PA4 MPU6000_CS CS
PA5 SPI1_SCK SPI1
PA6 SPI1_MISO SPI1
PA7 SPI1_MOSI SPI1

# SPI2 for ICM42688
PB12 ICM42605_CS CS
PB13 SPI2_SCK SPI2
PB14 SPI2_MISO SPI2
PB15 SPI2_MOSI SPI2

# SPI3 for SDCard
PA15 SDCARD_CS CS
PC10 SPI3_SCK SPI3
PC11 SPI3_MISO SPI3
PC12 SPI3_MOSI SPI3

# SPI4 for MAX7456 OSD
PE4 MAX7456_CS CS
PE2 SPI4_SCK SPI4
PE5 SPI4_MISO SPI4
PE6 SPI4_MOSI SPI4

PC3 BATT_VOLTAGE_SENS ADC1 SCALE(1)
PC2 BATT_CURRENT_SENS ADC1 SCALE(1)

# define default battery setup
define HAL_BATT_MONITOR_DEFAULT 4
define HAL_BATT_VOLT_PIN 13
define HAL_BATT_CURR_PIN 12
define HAL_BATT_VOLT_SCALE 11.13
define HAL_BATT_CURR_SCALE 28.5

PC13 LED0 OUTPUT LOW GPIO(90) # LED
define AP_NOTIFY_GPIO_LED_1_ENABLED 1
define AP_NOTIFY_GPIO_LED_1_PIN 90

# In order to accommodate bi-directional dshot certain devices cannot be DMA enabled
# NODMA indicates these devices, if you remove it they will still not be resolved for DMA

# USART1
PA10 USART1_RX USART1
PA9 USART1_TX USART1
define DEFAULT_SERIAL1_PROTOCOL SerialProtocol_MSP_DisplayPort

# USART2
# RC input defaults to UART to allow for bi-dir dshot
PA2 USART2_TX USART2
PA3 USART2_RX USART2
define DEFAULT_SERIAL2_PROTOCOL SerialProtocol_RCIN
define DEFAULT_SERIAL2_BAUD 115

# USART3 (BT)
PB11 USART3_RX USART3 NODMA
PB10 USART3_TX USART3 NODMA
define DEFAULT_SERIAL3_PROTOCOL SerialProtocol_None

# UART4 (GPS)
PA0 UART4_TX UART4 NODMA
PA1 UART4_RX UART4 NODMA
define DEFAULT_SERIAL4_PROTOCOL SerialProtocol_GPS

# UART6
PC6 USART6_TX USART6 NODMA
PC7 USART6_RX USART6 NODMA
define DEFAULT_SERIAL6_PROTOCOL SerialProtocol_None

# UART7
PE7 UART7_RX UART7 NODMA
PE8 UART7_TX UART7 NODMA
define DEFAULT_SERIAL7_PROTOCOL SerialProtocol_None

# UART8
PE0 UART8_RX UART8 NODMA
PE1 UART8_TX UART8 NODMA
define DEFAULT_SERIAL8_PROTOCOL SerialProtocol_ESCTelemetry

# Motors, bi-directional dshot capable
PB0 TIM3_CH3 TIM3 PWM(1) GPIO(50) # M1
PB1 TIM3_CH4 TIM3 PWM(2) GPIO(51) BIDIR # M2
PB5 TIM3_CH2 TIM3 PWM(3) GPIO(52) # M3
PB4 TIM3_CH1 TIM3 PWM(4) GPIO(53) BIDIR # M4
PD12 TIM4_CH1 TIM4 PWM(5) GPIO(54) # M5
PD13 TIM4_CH2 TIM4 PWM(6) GPIO(55) # M6
PC8 TIM8_CH3 TIM8 PWM(7) GPIO(56) NODMA # M7
PC9 TIM8_CH4 TIM8 PWM(8) GPIO(57) NODMA # M8

# extra PWM outs
PA8 TIM1_CH1 TIM1 PWM(9) GPIO(58) # led pin
PD2 BUZZER OUTPUT GPIO(80) LOW
define HAL_BUZZER_PIN 80
define HAL_BUZZER_ON 1
define HAL_BUZZER_OFF 0

DMA_PRIORITY USART2*

define HAL_STORAGE_SIZE 16384
STORAGE_FLASH_PAGE 1

# spi devices
SPIDEV mpu6000 SPI1 DEVID1 MPU6000_CS MODE3 1*MHZ 4*MHZ
SPIDEV icm42688 SPI2 DEVID1 ICM42605_CS MODE3 2*MHZ 16*MHZ
SPIDEV sdcard SPI3 DEVID1 SDCARD_CS MODE0 400*KHZ 25*MHZ
SPIDEV osd SPI4 DEVID4 MAX7456_CS MODE0 10*MHZ 10*MHZ

# IMU setup
IMU Invensensev3 SPI:icm42688 ROTATION_ROLL_180
IMU Invensense SPI:mpu6000 ROTATION_YAW_90
define HAL_DEFAULT_INS_FAST_SAMPLE 3

# no built-in compass, but probe the i2c bus for all possible
# external compass types
define ALLOW_ARM_NO_COMPASS
define HAL_PROBE_EXTERNAL_I2C_COMPASSES
define HAL_I2C_INTERNAL_MASK 0
define HAL_COMPASS_AUTO_ROT_DEFAULT 2

# one BARO
BARO BMP280 I2C:0:0x76

define HAL_OS_FATFS_IO 1
define HAL_BOARD_LOG_DIRECTORY "/APM/LOGS"
define HAL_BOARD_TERRAIN_DIRECTORY "/APM/TERRAIN"

# setup for OSD
define OSD_ENABLED 1
define HAL_OSD_TYPE_DEFAULT 1
ROMFS_WILDCARD libraries/AP_OSD/fonts/font0.bin

# save some flash
include ../include/minimize_fpv_osd.inc

undef AP_BARO_PROBE_EXTERNAL_I2C_BUSES
define AP_BARO_PROBE_EXTERNAL_I2C_BUSES 1

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