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Debugging control unit supporting DDR3 data path debugging and debugging method

A data path and control unit technology, applied in the field of debugging control units that support DDR3 data path debugging, can solve problems such as inability to locate quickly, and achieve the effect of reducing debugging difficulty and accelerating convergence speed

Active Publication Date: 2016-08-24
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such errors cannot be quickly located during PCB board-level debugging
Even for the status registers and control registers provided by the DDR3 interface IP, it is often necessary to have a designer-like understanding of the IP to quickly locate the problem

Method used

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  • Debugging control unit supporting DDR3 data path debugging and debugging method
  • Debugging control unit supporting DDR3 data path debugging and debugging method
  • Debugging control unit supporting DDR3 data path debugging and debugging method

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figure 4 Shown is a schematic diagram of a typical chip debugging system structure. The target chip generally has one or more debugging interfaces, such as a JTAG debugging interface, a PCIE debugging interface, and the like. The debugging host is connected to the cable socket of the debugging development board through a cable, and the debugging interface of the target chip on the development board is connected to the cable socket through the circuit of the development board. Debugging results can be displayed on the monitor of the debugging host. The debugging host is generally a desktop computer or a notebook computer. The debugging cable mostly uses USB and so on.

[0027] like figure 1 and figure 2 Shown, a kind of debugging control unit of the present invention that supports DDR3 data path debugging includes d...

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Abstract

The invention discloses a debugging control unit supporting DDR3 data path debugging and a debugging method. The debugging control unit comprises a data sampling unit, a data compression unit, a debugging data buffer unit and one or more debugging host interface units. The data sampling unit samples valid data of a DDR3 data path, and the valid data passes through the data compression unit and is stored in the debugging data buffer unit; the debugging host interface units read the debugging data out of the data buffer unit, and the debugging data is sent to a debugging host through a debugging interface of a chip. The debugging method is implemented based on the debugging control unit. The debugging control unit and the debugging method have the advantages that the structure is simple, operation is easy and convenient, the debugging difficulty can be lowered, and the debugging convergence rate is accelerated.

Description

technical field [0001] The invention mainly relates to the debugging field of printed circuit boards, in particular to a debugging control unit and a debugging method supporting DDR3 data path debugging. Background technique [0002] DDR3SDRAM is currently the most widely applicable dynamic memory (DRAM), its clock frequency can reach 1066MHz, and the speed can reach up to 2133MT / s. DDR3 adopts a source-synchronous parallel bus, and adopts data at the upper and lower edges of the clock to achieve double rate. Because of its high rate, the signal integrity of the DDR3 interface has become an important consideration in its physical design, substrate packaging design, and PCB board design. In addition, power integrity, protocol design, etc. are also important considerations in DDR3 interface design. [0003] With the refinement of the division of labor, more IP suppliers have provided specialized DDR3 interface commercial IP (including protocol controller, PHY and IO, hereina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C29/56
CPCG11C29/56
Inventor 陈胜刚扈啸雷元武刘胜曾思陈小文陈海燕
Owner NAT UNIV OF DEFENSE TECH