cargo-flash
This crate provides a cargo subcommand to flash ELF binaries onto ARM chips.
Various chip families including but not limited to nRF5x, STM32 and LPC800 can be flashed using DAPLink, ST-Link or J-Link. To check if your specific chip is supported, use cargo flash --list-chips
Support
If you think cargo-flash makes your embedded journey more enjoyable or even earns you money, please consider supporting the project on Github Sponsors for better support and more features.
Installation
You can install this utility with cargo, after installing the necessary prerequisites:
cargo install cargo-flash
Binary releases are not available.
Usage
You can use it like any cargo command would be used
cargo flash <args>
which will then build your binary and download the contents onto the connected target.
Examples
Flash the debug version of the current crate
cargo flash --chip nrf58122
Specifying manually what options should be used
cargo flash --release --chip nRF51822 --target thumbv6m-none-eabi --example gpio_hal_blinky
Use a custom chip definition from a non-builtin file
cargo flash --release --chip-description-path nRF51822.yaml --target thumbv6m-none-eabi --example gpio_hal_blinky
Manually selecting a chip
To manually select a chip, you can use the --chip <chip name>
argument. The chip name is an identifier such as nRF51822
or STM32F042
. Capitalization does not matter; Special characters do matter.
Specifying a chip family description file
You can add a temporary chip family description by using the --chip-description-path <chip description file path>
or -c
argument. You need to pass it the path to a valid yaml family description.
All the targets of the family will then be added to the registry temporarily and will override existing variants with the same name.
You can use this feature to tinker with a chip family description until it works and then submit it to upstream for inclusion.
Extracting a chip family description file from a CMSIS-Pack
You can extract the family description file by running target-gen on a .pack
file with cargo run -- file.pack out_dir
. You can obtain the pack from ARM for example. Their online registry is a good start :)
You can also reference to an already unziped pack
directory instead of the file.pack
archive file.
Add more chip definitions
If you have a chip you want to flash, feel free to contribute to probe-rs.
Building
cargo-flash
can be built using cargo, after installing the necessary prerequisites. See the list below for your operating
system.
FTDI support
FTDI support is optional. You can enable it with the ftdi
feature. You also need the correct prerequisites from the next section installed.
Prerequisites
cargo-flash depends on the libusb and optionally on libftdi libraries, which need to be installed to build cargo-flash.
Linux
On Ubuntu, the following packages need to be installed:
> sudo apt install -y pkg-config libusb-1.0-0-dev libftdi1-dev
Windows
On Windows you can use vcpkg to install the prerequisites:
# dynamic linking 64-bit
> vcpkg install libftdi1:x64-windows libusb:x64-windows
> set VCPKGRS_DYNAMIC=1
# static linking 64-bit
> vcpkg install libftdi1:x64-windows-static-md libusb:x64-windows-static-md
macOS
On macOS, homebrew is the suggested method to install libftdi:
> brew install libftdi
Sentry logging
We use Sentry to record crash data. This helps us trace crashes better.
No data will ever be transmitted without your consent!
All data is transmitted completely anonymously.
This is an OPT-IN feature. On crash, cargo-flash will ask you whether to transmit the data or not. You can also set whether to do this for all times with an environment variable to omit the message in the future.
If you do not wish to have sentry integrated at all, you can also build cargo-flash without sentry by using --no-default-features
.