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Loongson simulator terminal

An emulator and terminal technology, applied in software testing/debugging, detecting faulty computer hardware, etc., can solve problems such as inability to perform large-scale applications and restrict the use of debugging tools, so as to reduce the burden of use and simplify the online process. Effect

Active Publication Date: 2012-10-03
中船数字信息技术有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an efficient Loongson emulator terminal that supports more integrated development environments and host platforms in view of the fact that the debugging tool of the Loongson processor is restricted by the use conditions and cannot be used in a wide range.

Method used

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  • Loongson simulator terminal
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Embodiment 1

[0029] Example 1. refer to Figure 1-2 . A Godson emulator terminal.

[0030] It includes main control module, Ethernet interface, serial interface, JTAG interface and LED indicators;

[0031] Described main control module comprises AU1550 processor, SDRAM memorizer, NOR Flash, CPLD programmable device and level conversion chip;

[0032] The SDRAM memory is connected to the SDRAM controller of the AU1550 processor;

[0033] NOR Flash is connected to the static bus controller of the AU1550 processor;

[0034] The CPLD programmable device is connected to the static bus controller of the AU1550 processor through the bus;

[0035] The bus of the static bus controller includes address bus A[28:23] and A[11:0], data bus D[31:0] and control bus;

[0036]The control bus includes RBE[3:0] signal, RWE signal, ROE signal, RCS signal and EWAIT signal; wherein, RBE signal represents byte enable selection, active low, and RBE0 is for data bus D[7:0 ], RBE1 is for data bus D[15:8], RB...

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Abstract

The invention relates to a loongson simulator terminal, which is characterized by comprising a main control module, an Ethernet interface, a serial interface, a JTAG (Joint Test Action Group) interface and an LED indicating lamp, wherein the main control module comprises an AU1550 processor, an SDRAM (Synchronous Dynamic random access memory) memory, an NORFlash, a CPLD (Complex Programmable Logic Device) programmable device and a level conversion chip. Aiming at the defects that a debugging tool of a loongson processor is restrained by using conditions and cannot be applied to a wide range, the invention provides the efficient loongson simulator terminal which supports more integrated development environments and mainframe platforms. The a loongson simulator supports the open source integrated development environment, is irrelevant to an operating system utilized by a subscriber, simplifies an online process with the loongson processor, reduces the using burden of the subscriber and provides the technical guarantee for wide range application of the loongson processor.

Description

technical field [0001] The invention relates to a debugging device in an embedded system, in particular to a Godson emulator terminal for debugging a Godson processor. Background technique [0002] Embedded processors have been widely used in various fields, and accordingly, people's demand for embedded development tools has become very urgent. The development of embedded processors requires a special development environment, generally including cross-compiler, cross-debugger, integrated development environment (IDE) and so on. There are two ways to realize the cross-debugger: one is on-chip debugging, and the other is to run the monitoring program on the target processor to complete the debugging. The former requires the support of the hardware debugging module of the processor, such as EJTAG of the MIPS processor, OnCE of the National Chip processor, etc. Through the above modules, the hardware system and the software system can be debugged in the bare metal state, while...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/22G06F11/36
Inventor 杨光年朱建培郭荣亮周军徐锋董淑泉
Owner 中船数字信息技术有限公司