Explain the word "simulation", which means imitating the truth. "Simulation chip" is to debug the circuit board with the technology of "imitating the function of real chip". Why is there a simulation chip? When the early chip technology was not developed, many chips only had OTP technology, and OTP (one-time programming) chips could only be programmed once. If the software needs to be programmed once, how many OTP chips are needed, which will be an incalculable R&D investment. In this case, there are debugging tools of "simulation chip" and "emulator". Its main function is to reduce the cost of research and development, make software debugging faster, and thus accelerate the speed of product listing.