As of this year, the original production run of VEC-643 has largely shifted to "Last Time Buy" (LTB) status. However, due to high demand in legacy industrial repair (CNC machines, old elevators, and HVAC systems), the secondary market is active.
| Change | Rationale | |--------|-----------| | ISR → Message Queue (size 128) | Decouples interrupt latency from processing time. | | Use CAN_RxFIFO0 hardware FIFO | Reduces CPU cycles per message. | | Implement CAN_TX_Abort on overload | Guarantees bounded transmission latency. | | Enable recovery logic | Improves robustness to bus errors. | VEC-643
Prepared on 16 April 2026