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Loongson simulator terminal

A technology of emulator and terminal, which is applied in software testing/debugging, detecting faulty computer hardware, etc. It can solve problems such as inability to carry out large-scale applications and restrictions on the use of debugging tools, so as to reduce the burden of use and simplify the online process. Effect

Active Publication Date: 2011-03-23
中船重工信息科技有限公司
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  • Abstract
  • Description
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  • Application Information

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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Examples

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Embodiment 1

[0029] Example 1. Reference Figure 1-2 . A Loongson emulator terminal.

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

[0031] The main control module includes AU1550 processor, SDRAM memory, NOR Flash, CPLD programmable device and level conversion chip;

[0032] 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 mode;

[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; among them, RBE signal represents byte enable selection, low level is effective, RBE0 is for data bus D[7:0 ], RBE1 is for data bus D[15:8], RBE2 is for ...

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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. Accordingly, people's demand for embedded development tools has become very urgent. The development of embedded processors requires special development environments, which generally include cross-compilers, cross-debuggers, and integrated development environments (IDE). There are two ways to implement the cross debugger: one is on-chip debugging, and the other is to run a monitor program on the target computer processor to complete the debugging. The former requires processor hardware debugging module support, such as MIPS processor’s EJTAG, Guoxin processor’s OnCE, etc. The above modules can be used to debug the hardware system and software system in the bare metal state, while the latter can only be used in the processor ...

Claims

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Application Information

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IPC IPC(8): G06F11/22G06F11/36
Inventor 杨光年朱建培郭荣亮周军徐锋董淑泉
Owner 中船重工信息科技有限公司