Universal JTAG debugging card and test method thereof

Abstract

The invention discloses a universal JTAG debugging card, and relates to the technical field of board card debugging. The universal JTAG debugging card is provided with a JTAG interface, an information processing unit and an uplink USB interface; the universal JTAG debugging card is in communication connection with a JTAG chip on the board card through the JTAG interface; the information processing unit acquires register state information of the JTAG chip on the board card through one-time broadcast issuing; and the universal JTAG debugging card transmits obtained register information of the JTAG chip to external upper computer software through an uplink USB interface, and the upper computer software integrates register function definition information of the JTAG chip and is used for analyzing received information into function configuration information and displaying the function configuration information in front of a user. The invention further discloses a test method based on the universal JTAG debugging card.

Description

technical field [0001] The invention relates to the technical field of board card debugging, in particular to a general-purpose JTAG debugging card and a testing method thereof. Background technique [0002] At present, the semiconductor manufacturing industry is developing in full swing, and advanced manufacturing processes are constantly being developed. 10nm, 7nm, 7nm+, and 5nm will be trial-produced next year. More and more large-scale integrated circuit chips are being pushed to hardware engineers. The era of discrete component construction principles has gradually passed, and large-scale integrated circuits have become the mainstream. These integrated circuits, which easily integrate tens of thousands of electronic components, can realize complex functions by configuring peripherals, such as CPU, GPU, etc., which not only simplifies the difficulty of circuit design for hardware engineers, but also improves board debugging, fault location, abnormality, etc. The difficu...

AI Technical Summary

Problems solved by technology

These integrated circuits, which easily integrate tens of thousands of electronic components, can realize complex functions by configuring peripherals, such as CPU, GPU, etc., which not only simplifies the difficulty of circuit design for hardware engineers, but also improves board debugging, fault location, abnormality, etc. The difficulty of processing, what's more, requires chip manufacturers to participate in problem troubleshooting, and perform in-depth analysis and positioning at the register level, which greatly reduces the timeliness of board debugging

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