Document Version: 1.0
Date: August 2, 2025
Project: OpenAstroFirmware - Zephyr RTOS-based Telescope Mount Control System
This document specifies the functional and non-functional requirements for OpenAstroFirmware, a Zephyr RTOS-based firmware system for controlling astronomical telescope mounts. The firmware is the successor to OpenAstroTracker-Firmware and provides enhanced capabilities for precision telescope mount control.
OpenAstroFirmware SHALL provide telescope mount control capabilities including:
- LX200 protocol implementation for telescope communication
- Stepper motor control for RA and DEC axes
- Cross-platform development and simulation
- Hardware abstraction for multiple controller boards
- Real-time tracking and positioning algorithms
- RA: Right Ascension
- DEC: Declination
- LX200: Meade telescope serial communication protocol
- RTOS: Real-Time Operating System
- TMC: Trinamic stepper motor controller
- OAT: OpenAstroTracker
- OAM: OpenAstroMount
- EARS: Easy Approach to Requirements Syntax
REQ-SYS-001: The system SHALL be built on Zephyr RTOS version 4.2.0.
REQ-SYS-002: The system SHALL support 32-bit microcontroller platforms only.
REQ-SYS-003: The system SHALL support UART communication interface.
REQ-SYS-004: The system SHALL provide native simulation capabilities for development and testing.
REQ-HW-001: The system SHALL support MKS Robin Nano (STM32F407xx-based) as the primary hardware platform.
REQ-HW-002: The system SHALL support native_sim platform for development and testing.
REQ-HW-003: The system SHALL support STM32F407xx microcontroller family.
REQ-HW-004: When multiple hardware variations are present, the system SHALL support all variations through compile-time configuration.
REQ-HW-EXT-001: The system SHALL provide a hardware abstraction layer that allows addition of new microcontroller board support without modifying core functionality.
REQ-HW-EXT-002: The system SHALL support board-specific configuration files that define hardware capabilities, pin mappings, and peripheral configurations.
REQ-HW-EXT-003: The system SHALL use Zephyr device tree system to enable hardware-specific configurations for new board variants.
REQ-HW-EXT-004: The system SHALL provide standardized interfaces for integrating new hardware platforms while maintaining compatibility with existing firmware features.
REQ-COM-001: The system SHALL implement the Meade LX200 telescope serial command protocol.
REQ-COM-002: The system SHALL support serial communication at 115200 baud rate as default.
REQ-COM-003: The system SHALL parse LX200 commands with format :<command>[parameters]#.
REQ-COM-004: The system SHALL validate LX200 command prefix : and terminator #.
REQ-COM-005: The system SHALL support the following LX200 command families:
- Initialize commands (I) - Initialize scope and enter serial control mode
- Sync control commands (CM) - Synchronize telescope coordinates
- Distance commands (D) - Query mount slewing status
- Focuser control commands (F) - Focuser movement and control
- Get telescope information commands (G) - Retrieve telescope status and coordinates
- GPS commands (g) - GPS time and location setting
- Home/Park commands (h) - Home, park, and unpark operations
- Movement commands (M) - Slewing, tracking, and guiding operations
- Stop movement commands (Q) - Stop motors and quit control mode
- Slew rate commands (R) - Set slewing rates
- Set telescope parameters commands (S) - Set coordinates, time, date, and location
- Extended OAT commands (X) - OpenAstroTech-specific extended functionality
REQ-COM-006: The system SHALL support coordinate formats:
- Right Ascension: HH:MM:SS (hours, minutes, seconds)
- Declination: sDDMM:SS or sDDMM'SS (sign, degrees, minutes, seconds)
- Longitude: sDDD*MM (sign, degrees, minutes) or DDD (0-360 degrees west from Greenwich)
- Latitude: sDD*MM (sign, degrees, minutes)
- Hour Angle: HH:MM (hours, minutes)
- Time formats: HH:MM:SS (24-hour) and MM/DD/YY (date)
- Extended sync format: sDD*MM:SS.HH:MM:SS (DEC and RA combined)
REQ-COM-007: The system SHALL process serial message commands sequentially but asynchronously in the background.
REQ-COM-008: The system SHALL return appropriate responses to LX200 commands according to protocol specification.
REQ-COM-009: The system SHALL handle buffer overflow conditions gracefully when command length exceeds maximum.
REQ-COM-010: The system SHALL support command parsing with maximum command length of 32 characters.
REQ-COM-011: The system SHOULD support WiFi connectivity for wireless telescope control.
REQ-COM-012: The system SHOULD support Bluetooth connectivity for wireless telescope control.
REQ-COM-013: The system SHALL support OpenAstroTech-specific extended LX200 commands (X-family) for enhanced functionality.
REQ-COM-014: The system SHALL implement mount status reporting with the :GX# command returning comma-delimited status information including mount state, motion state, stepper positions, and coordinates.
REQ-COM-015: The system SHALL support GPS-based time and location setting with configurable timeout using :gTnnn# command.
REQ-COM-016: The system SHALL support Hall sensor-based auto-homing for RA and DEC axes with configurable search direction and range.
REQ-COM-017: The system SHALL support stepper motor direct control commands for precise positioning and calibration.
REQ-COM-018: The system SHALL support drift alignment procedures for polar alignment assistance.
REQ-COM-019: The system SHALL support digital level integration for mount leveling when hardware is present.
REQ-COM-020: The system SHALL support network status reporting for WiFi-enabled hardware platforms.
REQ-COM-021: The system SHALL support backlash correction configuration and reporting.
REQ-COM-022: The system SHALL support DEC axis limit setting and enforcement for safety.
REQ-COM-023: The system SHALL support tracking speed adjustment and manual slewing speed control.
REQ-COM-024: The system SHALL support mount configuration reporting including hardware capabilities and driver settings.
REQ-NET-001: The system SHOULD support WiFi connectivity on ESP32-based hardware platforms.
REQ-NET-002: When WiFi is enabled, the system SHALL provide network status reporting including connection state, IP address, and hostname.
REQ-NET-003: When WiFi is enabled, the system SHALL support configurable network parameters including SSID and host settings.
REQ-AXIS-001: The system SHALL be able to slew both RA and DEC axes by specified numbers of degrees.
REQ-AXIS-002: The system SHALL be able to slew both RA and DEC axes at various configurable rates until commanded to stop.
REQ-AXIS-003: The system SHALL maintain constant RA tracking speed without changing coordinate position.
REQ-AXIS-004: The system SHALL support guiding corrections on both axes by running faster/slower (RA) or forward/reverse (DEC) for specified durations with millisecond accuracy without changing coordinate reference.
REQ-AXIS-005: The system SHALL allow coordinate synchronization for both RA and DEC axes from connected telescope control software.
REQ-AXIS-006: The system SHALL maintain home position reference through all RA and DEC operations.
REQ-AXIS-007: The system SHOULD support homing operations using position sensors for both RA and DEC axes.
REQ-MNT-001: RA and DEC axis operations SHALL be independent and capable of simultaneous execution.
REQ-MNT-002: The system SHALL convert RA/DEC coordinates to stepper motor target positions using the solution with the longest safe operational time.
REQ-MNT-003: The system SHALL be able to return the remaining safe operational time.
REQ-MNT-004: The system SHALL be able to return time to meridian crossing for the current position.
REQ-MNT-005: The system SHALL support both Northern and Southern hemisphere operations.
REQ-MNT-006: The system SHALL maintain awareness of current date, time, and geographic location for hour angle calculations.
REQ-MNT-007: The system SHALL support meridian flip detection and safe operational time calculation based on RA ring position.
REQ-MNT-008: The system SHALL support Hall sensor-based auto-homing with configurable search parameters and offset correction.
REQ-MNT-009: The system SHALL support backlash correction for RA axis with configurable overshoot and backtrack steps.
REQ-MNT-010: The system SHALL support DEC axis limit enforcement with configurable upper and lower position limits.
REQ-MNT-011: The system SHALL support parking operations that move to home position and advance to parking offset before stopping all movement.
REQ-MNT-012: The system SHALL support unparking operations that resume tracking from parked state.
REQ-GUIDE-001: The system SHALL support guide pulse operations with directional control (North, South, East, West).
REQ-GUIDE-002: The system SHALL support guide pulse duration control with millisecond precision from 1ms to 9999ms.
REQ-GUIDE-003: The system SHALL support RA guiding by adjusting tracking speed (faster/slower) for the specified duration.
REQ-GUIDE-004: The system SHALL support DEC guiding by running motor at constant speed in forward/reverse direction for the specified duration.
REQ-GUIDE-005: The system SHALL provide guiding status reporting to indicate when guiding operations are active.
REQ-ALT-001: When configured for ALT/AZ mode, the system SHALL be able to slew altitude and azimuth axes by specified degrees.
REQ-ALT-002: When configured for ALT/AZ mode, the system SHALL be able to slew at various rates until commanded to stop.
REQ-ALT-003: The system SHALL support ALT/AZ functionality for polar alignment of equatorial mounts.
REQ-ALT-004: When configured for ALT/AZ mode, the system SHOULD support configurable minimum and maximum position limits and enforce axis movement restrictions accordingly.
REQ-ALT-005: When configured for ALT/AZ mode, the system SHOULD save home and current positions to non-volatile memory.
REQ-STEP-001: The system SHALL support TMC stepper motor controllers (TMC22xx, TMC50xx, TMC51xx series).
REQ-STEP-002: The system SHALL support GPIO-based stepper motor drivers.
REQ-STEP-003: The system SHALL support simulation/testing stepper motor drivers for development.
REQ-STEP-004: All stepper motor operations SHALL be executed asynchronously.
REQ-STEP-005: The system SHOULD provide event notifications when stepper motors complete movements.
REQ-STEP-006: The system SHALL provide stepper motor enable/disable functionality.
REQ-STEP-007: The system SHALL support configurable micro-step resolutions (1, 2, 4, 8, 16, 32, 64, 128, 256 steps per full step).
REQ-STEP-008: The system SHALL support setting and getting actual stepper motor positions.
REQ-STEP-009: The system SHALL support setting reference positions for stepper motors.
REQ-STEP-010: The system SHALL support move-by-steps and move-to-position commands.
REQ-STEP-011: The system SHALL support continuous running in specified directions.
REQ-STEP-012: The system SHALL support immediate stop commands for stepper motors.
REQ-STEP-013: The system SHALL provide stepper motor movement status (moving/stopped).
REQ-STEP-014: The system SHALL support configurable step timing intervals with nanosecond precision.
REQ-STEP-015: The system SHALL support event callbacks for stepper motor operations.
REQ-STEP-016: The system SHALL integrate Zephyr stepper framework with mount control classes.
REQ-STEP-017: The system SHALL support limit switch integration for stepper motor safety.
REQ-STEP-018: The system SHALL provide basic calibration procedures for stepper motor setup.
REQ-STEP-EXT-001: The system SHALL provide a standardized stepper driver interface that allows addition of new stepper controller types without modifying core mount control logic.
REQ-STEP-EXT-002: The system SHALL support plugin-based architecture for integrating new stepper motor driver types (e.g., new TMC series, other manufacturer drivers).
REQ-STEP-EXT-003: The system SHALL provide configuration mechanisms to specify stepper driver parameters (current limits, microstepping, acceleration curves) for new driver types.
REQ-STEP-EXT-004: The system SHALL support runtime detection and initialization of different stepper driver types on the same system.
REQ-STEP-EXT-005: The system SHALL provide standardized calibration and testing interfaces that work with all supported stepper driver types.
REQ-TRK-001: The system SHALL support sidereal tracking rate.
REQ-TRK-002: The system SHALL support solar tracking rate.
REQ-TRK-003: The system SHALL support lunar tracking rate.
REQ-TRK-004: The system SHALL allow tracking to be enabled and disabled.
REQ-TRK-005: The system SHALL support custom tracking rate adjustments.
REQ-SLEW-001: The system SHALL support guide rate (slowest, 'G' rate).
REQ-SLEW-002: The system SHALL support centering rate (medium-slow, 'C' rate).
REQ-SLEW-003: The system SHALL support medium rate (medium-fast, 'M' rate).
REQ-SLEW-004: The system SHALL support slew rate (fastest, 'S' rate).
REQ-SLEW-005: The system SHALL allow dynamic slew rate changes during operation.
REQ-SLEW-006: The system SHALL support manual slewing mode with configurable speeds up to 2.5 degrees/second.
REQ-COORD-001: The system SHALL support equatorial coordinate system (RA/DEC).
REQ-COORD-002: The system SHALL support horizontal coordinate system (ALT/AZ).
REQ-COORD-003: The system SHALL validate coordinate ranges before processing.
REQ-COORD-004: The system SHALL support coordinate precision modes (high and low precision).
REQ-COORD-005: The system SHALL maintain coordinate accuracy throughout operations.
REQ-FOC-001: When focuser is connected, the system SHALL be able to slew the focuser at various rates until commanded to stop.
REQ-FOC-002: When focuser is connected, the system SHALL support slewing to specific target positions.
REQ-FOC-003: When focuser is connected, the system SHALL allow setting motor position reference.
REQ-FOC-004: When focuser is connected, the system SHALL provide position feedback.
REQ-FOC-005: When focuser is connected, the system SHALL support inward movement (toward objective) with :F+# command.
REQ-FOC-006: When focuser is connected, the system SHALL support outward movement (away from objective) with :F-# command.
REQ-FOC-007: When focuser is connected, the system SHALL support configurable speed control with 4 speed levels (1=slowest, 4=fastest).
REQ-FOC-008: When focuser is connected, the system SHALL support focuser movement status reporting (idle/moving).
REQ-FOC-009: When focuser is connected, the system SHALL support immediate stop functionality.
REQ-DEW-001: The system SHOULD support dew heater control functionality.
REQ-DEW-002: When dew heater is connected, the system SHALL provide power control (on/off) for dew heater outputs.
REQ-DEW-003: When dew heater is connected, the system SHOULD support variable power level control (PWM) for dew heater outputs.
REQ-DEW-004: When dew heater is connected, the system SHALL support multiple independent dew heater channels.
REQ-DEW-005: When dew heater is connected, the system SHOULD support temperature-based automatic dew heater control.
REQ-DEW-006: When dew heater is connected, the system SHALL provide dew heater status monitoring and reporting.
REQ-LEVEL-001: The system SHOULD support digital level integration for mount leveling assistance.
REQ-LEVEL-002: When digital level is connected, the system SHALL provide pitch and roll value reporting.
REQ-LEVEL-003: When digital level is connected, the system SHALL support reference pitch and roll value setting and storage.
REQ-LEVEL-004: When digital level is connected, the system SHALL provide temperature reporting.
REQ-LEVEL-005: When digital level is connected, the system SHALL support enable/disable control.
REQ-SAF-001: The system SHALL implement software limits to prevent mechanical damage.
REQ-SAF-002: The system SHALL support emergency stop functionality that immediately halts all motor movements.
REQ-SAF-003: The system SHALL implement collision detection and prevention mechanisms.
REQ-SAF-004: The system SHALL support end switch detection for RA and DEC axes.
REQ-SAF-005: The system SHALL implement timeout mechanisms for command responses.
REQ-PWR-001: The system SHALL provide basic power management capabilities.
REQ-PWR-002: The system SHALL support graceful shutdown procedures.
REQ-MON-001: The system SHALL monitor system status and provide error reporting.
REQ-SNS-001: The system SHALL support RA and DEC axis end switches.
REQ-SNS-002: The system SHALL support RA and DEC axis homing switches.
REQ-SNS-003: The system SHOULD support temperature sensor integration.
REQ-SNS-004: The system SHALL provide sensor status monitoring and reporting.
REQ-GPS-001: The system SHOULD support GPS module integration for automatic time and location setting.
REQ-GPS-002: When GPS is connected, the system SHALL support automatic time and location setting with configurable timeout.
REQ-GPS-003: When GPS is connected, the system SHALL support blocking GPS operations with 2-minute default timeout.
REQ-GPS-004: When GPS is connected, the system SHALL support custom timeout GPS operations for non-blocking usage.
REQ-GPS-005: When GPS is connected, the system SHALL provide GPS acquisition status reporting (success/timeout).
REQ-SNS-EXT-001: The system SHALL provide a standardized sensor interface that allows addition of new sensor types without modifying core functionality.
REQ-SNS-EXT-002: The system SHALL support plugin-based architecture for integrating new sensor types (temperature, humidity, pressure, accelerometer, magnetometer, etc.).
REQ-SNS-EXT-003: The system SHALL provide configuration mechanisms to define sensor-specific parameters, communication protocols, and data formats.
REQ-SNS-EXT-004: The system SHALL support runtime sensor discovery and initialization for dynamically configurable sensor configurations.
REQ-SNS-EXT-005: The system SHALL provide standardized sensor data reporting interfaces that work with all supported sensor types.
REQ-SNS-EXT-006: The system SHALL support sensor-specific calibration procedures and data processing algorithms.
REQ-UI-001: The system SHOULD support information-only displays for mount status visualization.
REQ-UI-002: The system SHOULD support LCD screens (small, large, color, monochrome).
REQ-UI-003: When display is present, the system SHOULD provide mount status information display.
REQ-COMPAT-001: The system SHALL be compatible with ASCOM telescope control framework.
REQ-COMPAT-002: The system SHALL be compatible with INDI telescope control framework.
REQ-COMPAT-003: The system SHALL be compatible with N.I.N.A. (Nighttime Imaging 'N' Astronomy) software.
REQ-COMPAT-004: The system SHALL be compatible with SkySafari telescope control software.
REQ-COMPAT-005: The system SHALL be compatible with OatControl software.
REQ-COMPAT-006: The system SHALL support OpenAstroTracker (OAT) mount hardware.
REQ-COMPAT-007: The system SHALL support OpenAstroMount (OAM) mount hardware.
REQ-COMPAT-008: The system SHALL support OpenAstroExplorer (OAE) mount hardware.
REQ-PERF-001: The system SHALL maintain tracking accuracy with sub-arcsecond precision.
REQ-PERF-002: The system SHALL respond to LX200 commands within 100 milliseconds under normal operating conditions.
REQ-PERF-003: The system SHALL support guiding corrections with millisecond timing accuracy.
REQ-PERF-004: The system SHALL maintain real-time tracking performance without interruption.
REQ-PERF-005: The system SHALL operate within the memory constraints of supported hardware platforms.
REQ-PERF-006: The system SHALL minimize CPU usage to ensure real-time operation.
REQ-PERF-007: The system SHALL handle concurrent operations (RA/DEC movement, communication, tracking) without performance degradation.
REQ-REL-001: The system SHALL implement comprehensive error handling for all major subsystems.
REQ-REL-002: The system SHALL provide meaningful error messages and status codes.
REQ-REL-003: The system SHALL recover gracefully from communication errors.
REQ-REL-004: The system SHALL maintain system state consistency during error conditions.
REQ-REL-005: The system SHALL continue operating when non-critical errors occur.
REQ-REL-006: The system SHALL validate all input parameters before processing.
REQ-REL-007: The system SHALL implement watchdog mechanisms for critical operations.
REQ-DEV-001: The system SHALL support West build system for project management.
REQ-DEV-002: The system SHALL support CMake build system.
REQ-DEV-003: The system SHALL provide comprehensive logging capabilities for debugging.
REQ-DEV-004: The system SHALL support in-hardware debugging capabilities.
REQ-TEST-001: The system SHALL include automated test suites for major components.
REQ-TEST-002: The system SHALL support unit testing of individual modules.
REQ-TEST-003: The system SHALL support integration testing with hardware simulation.
REQ-TEST-004: The system SHALL provide test coverage for LX200 protocol implementation.
REQ-TEST-005: The system SHALL provide test coverage for stepper motor control functions.
REQ-FW-BUILD-001: The system SHALL provide automated firmware build processes that generate distributable firmware images for all supported hardware platforms.
REQ-FW-BUILD-002: The system SHALL generate firmware images in standard formats suitable for different update mechanisms (binary, hex, signed images).
REQ-FW-BUILD-003: The system SHALL provide versioned firmware releases with clear version identification and changelog information.
REQ-FW-BUILD-004: The system SHALL support firmware image signing and verification for secure updates.
REQ-FW-BUILD-005: The system SHALL provide pre-built firmware images for common hardware configurations through official distribution channels.
REQ-FW-UPDATE-001: The system SHALL support firmware updates via serial/USB connection for initial installation and recovery scenarios.
REQ-FW-UPDATE-002: The system SHOULD support over-the-air (OTA) firmware updates when WiFi connectivity is available.
REQ-FW-UPDATE-003: When OTA updates are supported, the system SHALL implement secure firmware download with integrity verification.
REQ-FW-UPDATE-004: The system SHALL support firmware update rollback mechanisms to recover from failed updates.
REQ-FW-UPDATE-005: The system SHALL maintain bootloader functionality that allows firmware recovery in case of corrupted main firmware.
REQ-FW-UPDATE-006: During firmware updates, the system SHALL preserve critical user configuration and calibration data.
REQ-WEB-001: The system SHOULD provide an embedded web server for device configuration when WiFi is enabled.
REQ-WEB-002: When web server is enabled, the system SHALL provide a responsive web user interface accessible through standard web browsers.
REQ-WEB-003: The web interface SHALL allow configuration of mount parameters, stepper settings, sensor calibration, and network settings.
REQ-WEB-004: The web interface SHALL provide real-time mount status monitoring and control capabilities.
REQ-WEB-005: The web interface SHALL support firmware update initiation and progress monitoring.
REQ-WEB-006: The web interface SHALL implement secure authentication to prevent unauthorized access to mount control and configuration.
REQ-WEB-007: The web interface SHALL provide configuration backup and restore functionality.
REQ-WEB-008: The web interface SHALL support configuration of LX200 protocol settings and extended command features.
REQ-UX-001: The system SHALL provide clear documentation and guides for firmware installation and updates.
REQ-UX-002: The system SHALL provide user-friendly tools or scripts to simplify the firmware update process for non-technical users.
REQ-UX-003: The system SHALL provide clear status indicators and progress feedback during firmware update operations.
REQ-UX-004: The system SHALL implement graceful error handling and recovery procedures for failed update attempts.
REQ-UX-005: The system SHALL provide automated update notification mechanisms when new firmware versions are available.
REQ-EXT-001: The system SHALL provide modular architecture for easy feature addition.
REQ-EXT-002: The system SHALL support plugin architecture for additional hardware drivers.
REQ-EXT-003: The system SHALL provide clear APIs for extending functionality.
REQ-EXT-010: The system SHALL provide comprehensive documentation and examples for adding new hardware board support.
REQ-EXT-011: The system SHALL provide standardized interfaces and templates for integrating new stepper motor driver types.
REQ-EXT-012: The system SHALL provide extensible sensor framework with well-defined interfaces for adding new sensor types and capabilities.
REQ-EXT-004: The system architecture SHALL support future implementation of custom object tracking (Sun, Moon, ISS, comets).
REQ-EXT-005: The system architecture SHALL support future implementation of multiple mount types (German Equatorial, Fork, etc.).
REQ-EXT-006: The system architecture SHALL support future implementation of automated calibration and alignment procedures.
REQ-EXT-007: The system architecture SHALL support future implementation of periodic error correction (PEC).
REQ-EXT-008: The system architecture SHALL support future implementation of WiFi/Bluetooth connectivity.
REQ-EXT-009: The system architecture SHALL support future implementation of GPS integration for automatic site setup.
REQ-CFG-001: The system SHALL use Zephyr's Kconfig system for configuration management.
REQ-CFG-002: The system SHALL support board-specific configuration files.
REQ-CFG-003: The system SHALL support device tree overlays for hardware configuration.
REQ-CFG-004: The system SHALL provide interactive configuration menu (menuconfig).
REQ-CFG-005: The system SHALL support runtime configuration of tracking rates.
REQ-CFG-006: The system SHALL support runtime configuration of slew rates.
REQ-CFG-007: The system SHALL support runtime configuration of coordinate precision modes.
REQ-CFG-008: The system SHALL persist critical configuration parameters across power cycles.
REQ-NVM-001: The system SHALL support EEPROM or equivalent non-volatile memory for persistent data storage.
REQ-NVM-002: The system SHALL store all user-configurable settings in non-volatile memory including mount parameters, stepper motor settings, network configuration, and calibration data.
REQ-NVM-003: The system SHALL implement a versioned configuration data structure that allows safe migration between firmware versions.
REQ-NVM-004: The system SHALL detect configuration version mismatches during boot and perform automatic migration or reset to safe defaults when necessary.
REQ-NVM-005: The system SHALL provide configuration backup and validation mechanisms to prevent corruption of critical settings.
REQ-NVM-006: The system SHALL support factory reset functionality that restores all settings to safe default values.
REQ-NVM-007: The system SHALL implement wear leveling or equivalent mechanisms to extend non-volatile memory lifespan during frequent updates.
REQ-NVM-008: The system SHALL validate configuration data integrity using checksums or equivalent error detection methods.
REQ-CFG-LX200-001: The system SHALL support reading configuration parameters through LX200 extended commands (X-family).
REQ-CFG-LX200-002: The system SHALL support writing configuration parameters through LX200 extended commands with immediate persistence to non-volatile memory.
REQ-CFG-LX200-003: The system SHALL provide LX200 commands to query available configuration parameters and their valid value ranges.
REQ-CFG-LX200-004: The system SHALL support configuration parameter validation before writing to non-volatile memory and return appropriate error responses for invalid values.
REQ-CFG-LX200-005: The system SHALL provide LX200 commands to perform factory reset operations with appropriate confirmation mechanisms.
REQ-CFG-LX200-006: The system SHALL support configuration backup and restore operations through LX200 extended commands.
REQ-CFG-LX200-007: The system SHALL provide LX200 commands to query configuration version information and migration status.
REQ-CFG-LX200-008: The system SHALL ensure atomic configuration updates through LX200 interface to prevent partial configuration corruption.
REQ-QUAL-001: The system SHALL use the C++20 standard, adhere to the Google C++ Style Guide (or project-specified equivalent), and achieve at least 95% compliance as measured by automated style and static analysis tools (e.g., clang-tidy, cpplint).
REQ-QUAL-002: The system SHALL maintain high code quality through automated analysis tools.
REQ-QUAL-003: The system SHALL follow established architectural design patterns.
REQ-QUAL-004: The system SHALL maintain comprehensive documentation for all public APIs.
REQ-COMP-001: The system SHALL fully comply with the Meade LX200 command protocol specification.
REQ-COMP-002: The system SHALL adhere to Zephyr RTOS coding standards and practices.
REQ-COMP-003: The system SHALL comply with relevant astronomical coordinate system standards.
| Version | Date | Author | Description |
|---|---|---|---|
| 1.0 | August 2, 2025 | Andre Stefanov | Initial requirements specification |
This document was generated based on OpenAstroFirmware project specifications, source code analysis, and established requirements for astronomical telescope mount control systems.