A kind of spi measuring fixture and measuring method

Abstract

The invention provides an SPI measurement fixture and a measurement method, belonging to the technical field of SPI measurement. The technical solution is: an SPI measurement fixture, including a base and a carbon rod seat, the bottom of the base is placed on the SPI chip, the carbon rod seat is provided on the top of the base, and a circuit is provided on the end surface of the base. , the base is connected to the carbon rod seat through the circuit, and finally the signal test of the SPI chip is realized through the carbon rod seat. The beneficial effects of the present invention are: using the jig, you can quickly point the required points on the Chip, and do not need to use a soldering iron to repeatedly solder; perform manual welding and use the difference comparison of the test results of the jig, and use the jig to measure the cost The time is greatly shortened. If it takes five minutes to weld with a soldering iron, it is estimated to only take ten seconds after using the jig, which saves the welding process and reduces the risk of damage to the test object.

Description

technical field [0001] The invention relates to the technical field of SPI measurement, in particular to an SPI measurement fixture and a measurement method. Background technique [0002] SPI is the abbreviation of Serial Peripheral Interface, which means Serial Peripheral Interface in Chinese. Due to its low pin count, simple structure, fast transmission speed, and ease of use, it has become a common standard in the industry. [0003] When measuring SPI, there are many chips with 8 pins. In order to ensure signal integrity, it is necessary to do signal testing for each of these chips during product development. Since a system moves dozens of chips, it takes a lot of time A lot of time, equipment and human resources are used to repeatedly solder with a soldering iron at this stage, and then set up a probe for measurement. Therefore, when performing SPI measurements, it is necessary to repeatedly use the ground wire of the soldering iron probe and set up Probes are used to m...

AI Technical Summary

Problems solved by technology

[0003] When measuring SPI, there are many chips with 8 pins. In order to ensure signal integrity, it is necessary to do signal testing for each of these chips during product development. Since a system moves dozens of chips, it takes a lot of time A lot of time, equipment and human resources are used to repeatedly solder with a soldering iron at this stage, and then set up a probe for measurement. Therefore, when performing SPI measurements, it is necessary to repeatedly use the ground wire of the soldering iron probe and set up Probes are used to measure these chips. This measurement method is time-consuming and laborious.

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