Method for RISC micro-processor printing and outputting information when front-end simulation of on-chip system

Abstract

The invention relates to a method of printing output information for a RISC microprocessor in a front end simulation of a chip system, comprising: building a type information file output functional module by a system, building visit connection between the type information file output functional module and the RISC microprocessor by the system, printing the information required to print out to a file set by the system through visiting the type information file output functional module by the RISC microprocessor. According to the method of printing output information for the RISC microprocessorin the front end simulation of the chip system, the printout operation of the system is directly controlled by RM, therefore, data required by the system are output to the file in time, meanwhile, a plurality of useless data are avoided, causing the output result more distinct and effective, providing convenience for system simulation debug, in addition, operation process is convenient and fast, simple and practical, running performance is stable and reliable, range of application is wide.

Description

technical field [0001] The invention relates to the field of integrated IC development, in particular to the technical field of system-on-chip (SOC) debugging information output, and specifically refers to a method for printing and outputting information by a RISC microprocessor during front-end simulation of a system-on-chip (SOC). Background technique [0002] With the continuous progress of society and the continuous development of science and technology, more and more integrated circuits (ICs) are used in various industries. The integrated circuit industry has become a very important field in the modern electronics industry, especially for System OnChip (System OnChip) ), its application scope is getting wider and wider, and among them, for SoC, the most important steps are development and testing. [0003] In the prior art, please refer to the general structure diagram of the SOC system figure 1 shown. In the SOC system, the RISC microprocessor (RM, RISC Microprocesso...

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Problems solved by technology

[0004] In a general hardware description language simulation system, the control logic usually prints the data directly, but in the SOC system, since the main control unit is RM, its control process is complicated, and the external logic cannot clearly know the effective Data and operations; so in order to debug more effectively, RM needs to directly control the printout

However, during the front-end simulation process of the system on chip, RM is also run as a logic unit in the "hardware description language" simulation tool, so it cannot print out information with syntax such as "printf" like the general RM debugging tool.

The information cannot be conveniently output by the main control unit, which brings great inconvenience to the huge system debugging work

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