`xmc1100-hal`
Free[](https://crates.io/crates/xmc1100-hal)
FreeFree tier
About `xmc1100-hal`
A Rust hardware abstraction layer (HAL) for xmc1100 microcontrollers, primarily intended for the XMC2GO kit. It provides low-level peripheral access and handles the unusual exception architecture of the XMC1100 chips via assembly interrupt handlers that emulate standard Cortex-M behavior. The HAL is based on the stm32f0xx-hal and supports flashing through the built-in JLink debug probe using OpenOCD or Segger tools.
Key Features
Based on the stm32f0xx-hal for structure and patterns
Handles the unusual exception architecture of XMC1100 chips, including non-configurable vector table and hard-coded RAM handler addresses
Uses assembly interrupt handlers to emulate standard Cortex-M interrupt behavior
Supports flashing via JLink debug probe using OpenOCD or Segger tools
Dual licensed under Apache 2.0 and MIT
Written in Rust for embedded systems
Pros & Cons
Pros
- Open source with permissive dual license (Apache 2.0 / MIT)
- Community maintained on GitHub with opportunities for contribution
- Based on the well-established stm32f0xx-hal, ensuring solid design patterns
Cons
- Unusual exception architecture leads to increased interrupt latency compared to standard Cortex-M
- Internal clock inaccuracies can cause serial communication errors at high baud rates (e.g., 115200)
- Interrupts may not work after flashing with OpenOCD without power cycling the board
Best For
Embedded development on the XMC2GO kit using RustProgramming Infineon XMC1100 microcontrollers with RustLearning about hardware abstraction layers for non-standard ARM Cortex-M architectures
FAQ
Why does my serial communication corrupt or return errors?
The internal clock on the XMC1100 is not great, which can cause timing errors at higher baud rates such as 115200. This issue is also observable in the Arduino implementation.
Why do interrupts not work after flashing?
After flashing with OpenOCD, interrupts may not work. Power cycling the board typically resolves the issue.