va416xx-rs/README.md
2024-06-12 11:48:13 +02:00

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Vorago VA416xx Rust Support
=========
This crate collection provided support to write Rust applications for the VA416XX family
of devices.
## List of crates
This workspace contains the following crates:
- The `va416xx` PAC crate containing basic low-level register definition
- The `va416xx-hal` HAL crate containing higher-level abstractions on top of
the PAC register crate.
- The `vorago-peb1` BSP crate containing support for the PEB1 development
board.
## Using the `.cargo/config.toml` file
Use the following command to have a starting `config.toml` file
```sh
cp .cargo/def-config.toml .cargo/config.toml
```
You then can adapt the `config.toml` to your needs. For example, you can configure runners
to conveniently flash with `cargo run`.
## Using the sample VS Code files
Use the following command to have a starting configuration for VS Code:
```sh
cp vscode .vscode -r
```
You can then adapt the files in `.vscode` to your needs.
## Flashing, running and debugging with the command line
### Prerequisites
1. [SEGGER J-Link tools](https://www.segger.com/downloads/jlink/) installed
2. [gdb-multiarch](https://packages.debian.org/sid/gdb-multiarch) or similar
cross-architecture debugger installed. All commands here assume `gdb-multiarch`.
### Flashing and debugging the blinky application
You can build the blinky example application with the following command
```sh
cargo build -p va416xx-hal --example blinky
```
Start the GDB server first. The server needs to be started with a certain configuration and with
a JLink script to disable ROM protection.
For example, on Debian based system the following command can be used to do this (this command
is also run when running the `jlink-gdb.sh` script)
```sh
JLinkGDBServer -select USB -device Cortex-M4 -endian little -if SWD -speed 2000 \
-LocalhostOnly -vd -jlinkscriptfile ./jlink/JLinkSettings.JLinkScript
```
After this, you can flash and debug the application with the following command
```sh
gdb-mutliarch -q -x jlink/jlink.gdb target/thumbv7em-none-eabihf/debug/examples/blinky
```
Please note that you can automate all steps except starting the GDB server by using a cargo
runner configuration, for example with the following lines in your `.cargo/config.toml` file:
```toml
[target.'cfg(all(target_arch = "arm", target_os = "none"))']
runner = "gdb-multiarch -q -x jlink/jlink.gdb"
```
After that, you can simply use `cargo run -p va416xx-hal --example blinky` to flash the blinky
example.
## Flashing, running and debugging with VS Code
TODO