The transition towards a circular economy and sustainable mobility positions electric retrofitting as a key strategy to extend vehicle lifecycles. To support this evolving market, this thesis presents a proprietary Rapid Control Prototyping (RCP) toolchain for a Vehicle Control Unit (VCU) implemented on the Miracle2 platform (NI sbRIO-9651). The primary objective was the definition of the toolchain to address legacy hardware constraints. This effort enabled automatic code generation from high-level Model-Based Application Software (ASW) within a layered architecture, acting as a bridge to the Basic Software (BSW). Consequently, the implementation focused on signal processing and the low-level CAN interface. The design phase involved the integration of a Curtis A-F6 inverter, requiring both its specific internal configuration and the development of the CANopen for VCU interaction.