Upload via the system’s proprietary maintenance interface. 5. Verification & Testing Test Case ID Description Expected Result Reassembly of all 21 parts Archive extracts without CRC errors. Incomplete set (Missing Part 21) Extraction fails with "Missing Volume" alert. Firmware Flash Device reboots with version string C2077ER-SC22685-V21 .
Enable seamless handshake protocols between the C2077 base unit and the ER peripheral. sc22685-C2077ER.part21.rar
Extract the primary volume. The extraction utility will automatically call part21.rar to finalize the binary assembly. Upload via the system’s proprietary maintenance interface
The system must verify the checksum of the reassembled .rar archive (Parts 1–21) before initiating the flash process. Incomplete set (Missing Part 21) Extraction fails with
Run the provided SHA-256 hash against the resulting .bin or .iso file.
Implement a "fail-safe" state if part21 or any preceding segments are corrupted during transfer. 3. Technical Specifications Target Hardware: SC22685 Series Microcontrollers. Firmware Version: C2077-ER v.2.1.0.