Field-programmable gate arrays (FPGAs) have demonstrated great speed performance and power efficiency advantages over conventional computers in various domains. However, it is still difficult for general software engineers to employ FPGA-based hardware accelerators because of the gap between hardware and software development methods. In this paper, we propose a heterogeneous computing oriented development environment (hCODE) to simplify the creation, sharing, and project integration of hardware accelerators. The hCODE defines hardware specifications and interface design rules. Hardware developers can provide designs that follow these rules, allowing software engineers to easily search, download, and integrate accelerators in their applications without caring about the details of the hardware.