5.1.4.2.2. Non-functional Requirements
The system must process user requests and transmit data through USART within 50 milliseconds. |
The system must be scalable to handle an increase in users, devices, or communication channels without a decrease in performance. |
The system must ensure reliable USART communication with a data loss not exceeding 0.1%, ensuring data integrity and protection. |
The system must encrypt sensitive data transmitted over USART to prevent unauthorized interception and data breaches. |
The system must be portable to different microcontroller models that support USART communication, supporting baud rates up to 115200 bps, with a maximum communication latency of 100ms. |
The system must ensure compatibility with external serial devices (e.g., sensors, actuators) that support standard USART communication protocols. |
The system must maintain audit logs of USART communication events, including connection attempts, successful transfers, and error occurrences. |
The system must ensure data consistency during communication by verifying the integrity of each transmitted byte using checksums or parity bits. |
The system must meet the timing constraints for USART data transmission and reception, ensuring each operation completes within 1 ms for byte transmission, 5 ms for data processing, 50 µs for interrupt response, and a timeout for inactivity after 100 ms. |
The system must support real-time communication, enabling low-latency data exchange between devices without significant delays in USART operations. |
The system must ensure high availability, with uptime of at least 99.7% for uninterrupted USART communication between devices. |
The system must implement error detection and handling mechanisms to detect USART communication failures and trigger recovery actions. |
The system must optimize power consumption by using low-power modes during idle states of USART communication, minimizing the energy consumption of the microcontroller. |
The system must be modular to facilitate future upgrades, allowing easy integration of additional USART ports or other communication protocols. |
The system must allow flexible configuration of USART parameters such as baud rate, oversampling, and data bits to adapt to different use cases and hardware setups. |
The system must support software updates, enabling the user to upgrade USART communication features and bug fixes without requiring hardware modifications. |
The system must be fault-tolerant, ensuring continuous operation even in the presence of errors in USART communication (e.g., by re-initializing or retrying on failure). |
The system must include comprehensive documentation covering the setup, configuration, and troubleshooting of USART communication, aiding users in managing and configuring the system. |