target-gen is a helper tool for probe-rs, which can be used to extract flash algorithms and target descriptions for chips from ARM CMSIS-Packs. This will then allow you to flash the chip using probe-rs.

As a first step, you need to get an appropriate CMSIS-Pack for the chip you want to flash. By default, probe-rs will look for CMSIS-Packs at the following ARM website: https://developer.arm.com/tools-and-software/embedded/cmsis/cmsis-search.

cargo run --release -- arm [OPTIONS] <OUTPUT>

Arguments: An output directory where all the generated .yaml files are put in.

Options:
-l, --list                  Optionally, list the names of all pack files available in <https://www.keil.com/pack/Keil.pidx>
-f, --filter <PACK_FILTER>  Optionally, filter the pack files that start with the specified name,
                            e.g. `STM32H7xx` or `LPC55S69_DFP`.
                            See `target-gen arm --list` for a list of available Pack files

cargo run --release -- pack [OPTIONS] <OUTPUT>

Arguments:
<INPUT>   A Pack file or the unziped Pack directory.
<OUTPUT>  An output directory where all the generated .yaml files are put in.

This wil generate YAML files containing the target descriptions, which can be used with probe-rs.

The target-gen tool can also be used to create a target description based on an ELF file. This requires that the ELF file adhers to the ARM CMSIS standard for flash algorithms, which can be found at: https://arm-software.github.io/CMSIS_5/Pack/html/algorithmFunc.html

Running

cargo run --release -- elf <ELF FILE> target.yml

will create a target description containing the extracted flash algorithm. The values for the chip description itself have to be adjusted manually in the generated Yaml file.