2025-07-03 18:09:58 +10:00

145 lines
5.2 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# CUAV v5 (Discontinued)
<Badge type="info" text="Discontinued" /> <!-- 202507 / PX4v1.16 -->
:::warning
This flight controller has been [discontinued](../flight_controller/autopilot_experimental.md) and is no longer commercially available.
:::
:::warning
PX4 does not manufacture this (or any) autopilot.
Contact the [manufacturer](https://store.cuav.net/) for hardware support or compliance issues.
:::
_CUAV v5_<sup>&reg;</sup> (previously "Pixhack v5") is an advanced autopilot designed and made by CUAV<sup>&reg;</sup>.
The board is based on the [Pixhawk-project](https://pixhawk.org/) **FMUv5** open hardware design.
It runs PX4 on the [NuttX](https://nuttx.apache.org/) OS, and is fully compatible with PX4 firmware.
It is intended primarily for academic and commercial developers.
![CUAV v5](../../assets/flight_controller/cuav_v5/pixhack_v5.jpg)
## Quick Summary
- Main FMU Processor: STM32F765
- 32 Bit Arm® Cortex®-M7, 216MHz, 2MB memory, 512KB RAM
- IO Processor: STM32F100
- 32 Bit Arm® Cortex®-M3, 24MHz, 8KB SRAM
- On-board sensors:
- Accelerometer/Gyroscope: ICM-20689
- Accelerometer/Gyroscope: BMI055
- Magnetometer: IST8310
- Barometer: MS5611
- Interfaces:
- 8-14 PWM outputs (6 from IO, 8 from FMU)
- 3 dedicated PWM/Capture inputs on FMU
- Dedicated R/C input for CPPM
- Dedicated R/C input for PPM and S.Bus
- analog / PWM RSSI input
- S.Bus servo output
- 5 general purpose serial ports
- 4 I2C ports
- 4 SPI buses
- 2 CANBuses with serial ESC
- Analog inputs for voltage / current of 2 batteries
- Power System:
- Power: 4.3~5.4V
- USB Input: 4.75~5.25V
- Servo Rail Input: 0~36V
- Weight and Dimensions:
- Weight: 90g
- Dimensions: 44x84x12mm
- Other Characteristics:
- Operating temperature: -20 ~ 80°C Measured value
## Where to Buy
Order from [CUAV](https://cuav.taobao.com/index.htm?spm=2013.1.w5002-16371268426.2.411f26d9E18eAz).
## Connection
![CUAV v5](../../assets/flight_controller/cuav_v5/pixhack_v5_connector.jpg)
:::warning
The RCIN interface is limited to powering the rc receiver and cannot be connected to any power/load.
:::
## Voltage Ratings
_CUAV v5_ can be triple-redundant on the power supply if three power sources are supplied. The three power rails are: **POWER1**, **POWER2** and **USB**.
::: info
The output power rails **FMU PWM OUT** and **I/O PWM OUT** (0V to 36V) do not power the flight controller board (and are not powered by it).
You must supply power to one of **POWER1**, **POWER2** or **USB** or the board will be unpowered.
:::
**Normal Operation Maximum Ratings**
Under these conditions all power sources will be used in this order to power the system:
1. **POWER1** and **POWER2** inputs (4.3V to 5.4V)
1. **USB** input (4.75V to 5.25V)
## Building Firmware
:::tip
Most users will not need to build this firmware!
It is pre-built and automatically installed by _QGroundControl_ when appropriate hardware is connected.
:::
To [build PX4](../dev_setup/building_px4.md) for this target:
```
make px4_fmu-v5_default
```
## Debug Port
The [PX4 System Console](../debug/system_console.md) and [SWD interface](../debug/swd_debug.md) operate on the **FMU Debug** port.
Simply connect the FTDI cable to the Debug & F7 SWD connector.
To access the I/O Debug port, the user must remove the CUAV v5 shell.
Both ports have standard serial pins and can be connected to a standard FTDI cable (3.3V, but 5V tolerant).
The pinout is as shown.
![CUAV v5 debug](../../assets/flight_controller/cuav_v5/pixhack_v5_debug.jpg)
| pin | CUAV v5 debug |
| --- | ------------- |
| 1 | GND |
| 2 | FMU-SWCLK |
| 3 | FMU-SWDIO |
| 4 | UART7_RX |
| 5 | UART7_TX |
| 6 | VCC |
## Serial Port Mapping
| UART | Device | Port |
| ------ | ---------- | ------------------------------------- |
| UART1 | /dev/ttyS0 | GPS |
| USART2 | /dev/ttyS1 | TELEM1 (flow control) |
| USART3 | /dev/ttyS2 | TELEM2 (flow control) |
| UART4 | /dev/ttyS3 | TELEM4 |
| USART6 | /dev/ttyS4 | TX is RC input from SBUS_RC connector |
| UART7 | /dev/ttyS5 | Debug Console |
| UART8 | /dev/ttyS6 | PX4IO |
<!-- Note: Got ports using https://github.com/PX4/PX4-user_guide/pull/672#issuecomment-598198434 -->
## Peripherals
- [Digital Airspeed Sensor](https://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-16371268452.37.6d9f48afsFgGZI&id=9512463037)
- [Telemetry Radio Modules](https://cuav.taobao.com/category-158480951.htm?spm=2013.1.w5002-16371268426.4.410b7a821qYbBq&search=y&catName=%CA%FD%B4%AB%B5%E7%CC%A8)
- [Rangefinders/Distance sensors](../sensor/rangefinders.md)
## Supported Platforms / Airframes
Any multicopter / airplane / rover or boat that can be controlled with normal RC servos or Futaba S-Bus servos.
The complete set of supported configurations can be seen in the [Airframes Reference](../airframes/airframe_reference.md).
## Further info
- [FMUv5 reference design pinout](https://docs.google.com/spreadsheets/d/1-n0__BYDedQrc_2NHqBenG1DNepAgnHpSGglke-QQwY/edit#gid=912976165).
- [CUAV Github](https://github.com/cuav)