Non-contact smart card chip simulator

Abstract

The invention discloses a non-contact smart card chip simulator, which comprises a simulation chip, a monitoring module, an equivalent card head and integrated development environment software installed on a user computer, wherein the monitoring module is connected with the equivalent card head through an external reset signal line, is connected with the simulation chip through an internal reset signal line, and transfers information with the integrated development environment software through a debugging interface channel; when the simulation chip is under a reset state, the simulation chip can not execute a user program; when the simulation chip is under a working state, the simulation chip can switch and execute a monitoring program to export various states and data after the user program stops while the execution of the user program is subjected to a breaking point, and the user program can be continuously executed in one step for tracking an execution process. By use of the simulator, the development and the debugging of the user program can be conveniently carried out, and the developing and debugging efficiency of the user program is improved.

Description

technical field [0001] The invention relates to the field of emulators, in particular to a non-contact 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 non-contact smart card processor chip, in addition to using the emulator, it is also necessary to use a non-contact card reader to simulate the working and communic...

AI Technical Summary

Problems solved by technology

However, when the non-contact smart card chip emulator cooperates with the non-contact card reader to debug the user program, the user often needs to debug the program after receiving the machine instruction, and needs to use breakpoints, single-step debugging methods to observe the program execution process , Various registers, memory status and data when executing to a certain program location, tracking program execution flow, analyzing program problems, etc., using the existing structure of the non-contact smart card chip emulator, and debugging with the non-contact card reader When the program before the correct response is returned after receiving the command of the machine tool, or when debugging the program with an abnormal return value, if you use breakpoints or single-step debugging methods on these program segments, it will not be possible to return the correct response within the response timeout range set by the machine tool. machine tool, and the machine tool will turn off the carrier because it finds that the timeout does not respond and judges that the card is abnormally executed, causing the emulation chip processor of the contactless smart card chip emulator to be in a reset state, and cannot be switched after the user program execution encounters a breakpoint. The execution monitoring program exports various states and data, and cannot continue to execute the user program in a single step and track the execution process, which makes the debugging of the user program extremely inconvenient

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