- Added devicetree overlay for VND7050AJ with GPIO and ADC configuration
- Created custom devicetree binding for VND7050AJ valve controller
- Implemented valve_get_supply_voltage() function with proper pin control:
- RST=HIGH to enable VND7050AJ
- S0=1, S1=1 for supply voltage sensing mode
- SEN=1 to enable MULTISENSE output
- ADC reading on PA0 (ADC1_IN1) with 12-bit resolution
- Fixed supply voltage calculation (VCC/8 per datasheet)
- Added comprehensive debug logging for all steps
- Tested and verified ADC functionality
- Current reading: 5.1V (may be limited by hardware power supply)
Files modified:
- software/lib/valve/valve.c: Main implementation
- software/apps/slave_node/boards/weact_stm32g431_core.overlay: DT config
- software/apps/slave_node/dts/bindings/vnd7050aj-valve-controller.yaml: DT binding
- software/apps/slave_node/src/main.c: Test code
- software/apps/slave_node/prj.conf: ADC driver enablement
This commit introduces a new Modbus input register for the system's supply voltage.
- The `modbus-registers.de.md` documentation is updated to include the `SUPPLY_VOLTAGE_MV` register at address `0x00F5` within the system block.
- The `modbus_server.h` header defines the new register.
- The `modbus_server.c` implementation provides a fixed value (12300 mV) for this register.
- The `modbus_tool.py` script is updated to read and display this new supply voltage value in the UI.
This lays the groundwork for integrating actual voltage measurements in the future.
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.
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.
Eduard Iten