Dual Interface Smart Card Chip Emulator

Abstract

The invention discloses a double-interface smart card chip simulator, comprising a simulated chip, a field intensity detection module and integrated development environment software installed in a user computer. The integrated development environment software sets a minimum carrier field intensity value in the field intensity detection module through a debugging interface channel. The field intensity detection module detects whether a non-contact carrier exists or not in real time, and detects the magnitude of carrier field intensity, if the detected carrier field intensity is greater than the minimum carrier field intensity value, a valid non-contact reset signal is sent to the simulated chip, and if the detected carrier field intensity is smaller than the minimum carrier field intensity value, an invalid non-contact reset signal is sent to the simulated chip. According to the simulator, the consistency between the double-interface smart card chip simulator and a product chip function can be ensured, and the development debugging efficiency of a user program can be improved.

Description

technical field [0001] The invention relates to the field of smart cards, in particular to a dual-interface smart card chip emulator. Background technique [0002] There is a user program developed by the user in the processor chip. In the writing and debugging of the user program, the tool used is generally an emulator. The emulator uses an emulation chip containing various functions of the product processor chip to simulate the working behavior of the product processor chip, and the emulation chip and other parts of the emulator (program memory for storing user programs, data memory for storing data, and user The integrated development environment on the computer, etc.) cooperates to realize the simulation operation of the user program and various debugging functions. [0003] When debugging the user program of the dual-interface smart card processor chip, in addition to using an emulator, it is also necessary to use a dual-interface card reader to simulate the working an...

AI Technical Summary

Problems solved by technology

However, when debugging the pure contact application program on the dual-interface smart card chip emulator, if the user program is debugged with the dual-interface card reader, the carrier has been detected when the card head is close to the card reader and has not been inserted into the card slot. , although the energy is insufficient, because the emulator does not need to obtain working energy from the carrier, it only generates a contactless reset signal equivalently because the carrier is detected, and the user program will start to execute and enter the non-contact communication process, which is different from the actual dual The use of the interface card does not match the user's expected pure contact debugging requirements and expectations (the user program will not enter the non-contact process), causing the execution status of the user program to be different from the expected and actual card, which brings trouble to the debugging of the user program

At the same time, even when using a pure contact card reader with a dual-interface smart card chip emulator, if there is an open non-contact or dual-interface card reader nearby, the non-contact part will be open because it is always on. Bring the same disturbance and impact

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