- Updated Doxygen comments in header files (valve.h, fwu.h, modbus_server.h) to be consistent and in English.
- Translated German register names in docs/modbus-registers.de.md to English.
- Updated docs/concept.de.md to reflect new details on current measurement and sensors.
- Updated docs/planning.de.md to reflect completed tasks in Phase 1.
- Implemented VND7050AJ and core functionality including current and voltage measurement and end-position detection.
- Create centralized sensor multiplexer node (vnd7050aj_mux) with shared configuration
- Consolidate ADC channel, GPIO pins, and reference voltage in single location
- Update sensor bindings to reference centralized mux via sensor-mux property
- Add channel-based sensor selection using mux-channel property (0-3)
- Refactor ADC sensor library to use centralized GPIO and channel control
- Update valve library to use new vnd7050aj_mux node reference
- Eliminate duplicate ADC/GPIO definitions between voltage and current sensors
- Ensure configuration consistency and prevent mismatched settings
Benefits:
- Single source of truth for VND7050AJ hardware configuration
- Impossible to have inconsistent GPIO/ADC settings between sensors
- Simplified maintenance and scalability for additional sensors
- Clean channel-based multiplexer selection interface
Introduces device tree bindings for custom ADC voltage and current sensors,
allowing for flexible configuration of sensor inputs and associated GPIOs.
This enables proper hardware abstraction for ADC measurements.
The example overlay file
has been removed as its content is now integrated or superseded by the new
binding definitions.
Adds a commented-out clock configuration to the file. This allows switching the clock source from the external high-speed oscillator (HSE) to the internal high-speed oscillator (HSI), which can be useful if an external crystal is not present.
Also, removes the debug log level for the settings subsystem from the project configuration.
This commit implements the real valve control using the GPIOs connected to the VND7050AJ driver.
- The `weact_stm32g431_core.overlay` is updated with a specific compatible string and a device tree label for the valve controller.
- `valve.h` is extended to include GPIO device specifications.
- `valve.c` now initializes and controls the GPIOs for opening and closing the valve, including the reset logic. The IN0 and IN1 pins are interlocked to prevent simultaneous activation. The RST pin is activated before each movement and deactivated afterward.
This replaces the previous virtual/simulated valve logic with actual hardware control.
Updated the weact_stm32g431_core.overlay to define the GPIO and ADC
pin assignments for the VND7050AJ driver. This includes:
- Digital I/O pins (IN0, IN1, RST, S0, S1, SEN) configured as GPIOs.
- Analog input pin (MULTISENSE/PA0) configured for ADC1.
This commit introduces a major refactoring of the project structure to align
with Zephyr's recommended multi-application and library organization.
Key changes include:
- Relocation of custom modules from 'software/modules/' to 'software/lib/'.
- Introduction of a central 'software/CMakeLists.txt' to manage application
and library subdirectories.
- Creation of new Kconfig files for 'software/' and 'software/apps/slave_node/'
to define project-wide and application-specific configurations.
- Removal of the 'gateway' and 'stm32g431_tests' applications.
- Removal of 'shell_modbus.c' and 'shell_system.c' from 'slave_node' application's
direct source files, indicating a shift towards library-based shell commands.
- Updates to 'software/apps/slave_node/CMakeLists.txt', 'prj.conf', and
'boards/bluepill_f103rb.conf' to reflect the new structure and dependencies.
- Adjusted Device Tree Overlays for bluepill_f103rb and weact_stm32g431_core
to correctly define Modbus UART via 'modbus0' subnode with 'zephyr,modbus-serial'
compatibility, aligning with rtu_server sample.
- Prepared modbus_server.c to use the correct Device Tree node for Modbus UART.
Refactor slave_node application to support building for both bluepill_f103rb and
weact_stm32g431_core boards.
- Moved RTT-specific console and shell backend configurations from prj.conf
into board-specific .conf files (bluepill_f103rb.conf).
- Configured USART2 as console/shell for weact_stm32g431_core.
- Added Device Tree Overlay for weact_stm32g431_core to enable USART1 for Modbus
communication (PA9/PA10).
- Integrate the Zephyr Settings subsystem to persist Modbus parameters.
- Use NVS (Non-Volatile Storage) as the backend with a dedicated flash partition.
- Modbus baudrate and slave ID are now loaded at startup.
- Changes made via the shell are saved to flash and survive a reboot.
- Add a 'reset' command to the shell for easier testing.
- Fix all compiler and devicetree warnings for a clean build.
- Implement a new 'modbus' command in the shell.
- Add sub-commands 'set_baud', 'set_id', and 'show'.
- Add validation for baud rate and slave ID inputs.
- The new parameters are applied to the Modbus server at runtime, allowing for live reconfiguration of the communication settings.
- The shell backend is set to RTT.
The Modbus server was previously unstable, leading to intermittent CRC errors when polled by a master. This was caused by the main thread exiting after initialization, which created timing and race condition issues for the interrupt-driven Modbus stack.
This fix ensures the main thread continues to run in a low-power sleep loop (). This provides a stable context for the Modbus server, resolving the CRC errors and ensuring reliable communication.
- Add a basic Modbus RTU server implementation based on Zephyr samples.
- Configure usart1 for Modbus via a board overlay.
- The server initializes and runs, but polling with mbpoll results in a timeout.
- This commit captures a functional but non-working state for further debugging.
Eduard Iten