CN114137394A - Synchronous calibration device and method for trigger signal sending direction - Google Patents
Synchronous calibration device and method for trigger signal sending direction Download PDFInfo
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- CN114137394A CN114137394A CN202111451208.1A CN202111451208A CN114137394A CN 114137394 A CN114137394 A CN 114137394A CN 202111451208 A CN202111451208 A CN 202111451208A CN 114137394 A CN114137394 A CN 114137394A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 11
- 238000013507 mapping Methods 0.000 claims abstract description 30
- 101100428617 Homo sapiens VMP1 gene Proteins 0.000 claims abstract description 26
- 101150074162 TDC1 gene Proteins 0.000 claims abstract description 26
- 101150010135 TDC2 gene Proteins 0.000 claims abstract description 26
- 102100038001 Vacuole membrane protein 1 Human genes 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims description 16
- 230000001960 triggered effect Effects 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000013558 reference substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2882—Testing timing characteristics
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2834—Automated test systems [ATE]; using microprocessors or computers
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Abstract
A synchronous calibration device for the sending direction of a trigger signal comprises a digital board module and an AC calibration board module; the AC calibration board module comprises a first data interface, a first controller and N TDC chips (TDC1, TDC2, … tdcN); the first controller controls the N TDC chips (TDC1, TDC2 and … tdcN) to collect data and controls the first data interface to send the collected original data out through the first data interface; the digital board module comprises a second data interface, a second controller, a channel mapping table and M data channels (ch1, ch2, … chM); the second controller controls the second data interface to receive the original data sent by the first data interface, and forms the connection relation between each channel of the N TDC chips (TDC1, TDC2 and … tdcN) and M data channels (ch1, ch2 and … chM) according to the channel mapping relation table, so as to obtain and store the delay data in the M data channels (ch1, ch2 and … chM).
Description
Technical Field
The present invention relates to the field of Automatic Test Equipment (ATE for short), and in particular, to a method and a calibration device for synchronous calibration of a trigger signal sending direction in ATE semiconductor integrated circuit Test Equipment.
Background
An Adjustment Calibration (AC) is a set of operations for determining, under specified conditions, the relationship between a quantity indicated by a meter instrument or measurement system, or represented by a material measure or reference substance, and a corresponding quantity reproduced by a standard. The calibration results give both the measured indication and the correction of the indication.
The sending direction synchronous calibration board (AC calibration board) is a printed circuit board, on which a Micro Control Unit (MCU) and a plurality of Time To Digital Converters (TDC) chips are mounted, and the TDC chip has a main function of measuring the Time for triggering a plurality of channel signals.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a connection relationship between each channel of an AC calibration board and a channel of a digital board in the prior art. As shown in fig. 1, the AC calibration board includes 20 TDC chips (TDC1, TDC2, … TDC20), and the connection relationship between each channel of each TDC chip and the digital board channel is mainly represented by the mapping relationship between the channels. In the prior art, the mapping relationship between the AC calibration board and the digital board channel is usually stored on the AC calibration board, and the processing of the mapping relationship is also performed on the AC calibration board.
However, in practical use, different types of digital boards differ in the number of channels, and there is a large difference in the mapping relationship of the connections between the channels of the digital boards and the channels of the AC calibration board. Especially in software processing, when a new type of digital board is added, the AC calibration board needs to be modified to maintain a channel mapping table with different single boards. Therefore, the above application directly causes the AC calibration board to be difficult to adapt to different types of digital boards, and the design of the conventional software framework is difficult to meet the requirement of simultaneously adapting to a plurality of different digital boards.
Disclosure of Invention
The invention aims to provide a testing device and a verification method for synchronous calibration of a trigger signal sending direction, which are used for solving the problem that an AC calibration board in the prior art is difficult to adapt to different types of digital boards.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a synchronous calibration device for a trigger signal sending direction comprises a digital board module and an AC calibration board module;
the AC calibration board module comprises a first data interface, a first controller and N TDC chips (TDC1, TDC2, … tdcN); the first controller controls the N TDC chips (TDC1, TDC2 and … tdcN) to collect data and controls the first data interface to send the collected original data out through the first data interface;
the digital board module comprises a second data interface, a second controller, a channel mapping table and M data channels (ch1, ch2, … chM); the second controller controls the second data interface to receive the original data sent from the first data interface, and the N blocks are formed according to the channel mapping relation table
The connection relation between each channel of the TDC chips (TDC1, TDC2 and … tdcN) and M data channels (ch1, ch2 and … chM) obtains and stores the delay data in the M data channels (ch1, ch2 and … chM); m and N are more than or equal to 1, and M is less than or equal to the total channel number of N TDC chips (TDC1, TDC2 and … tdcN).
Further, during calibration, the second controller controls to obtain configuration information of the AC calibration board according to the channel mapping relationship table, and when measurement is triggered, the configuration information is sent to the AC calibration board to implement dynamic configuration.
Further, M is 60, N is 20, each TDC chip has three measurement channels, and the raw data is data collected by 60 channels in all TDC chips (TDC1, TDC2, … TDC 20).
In order to achieve the purpose, the technical scheme of the invention is as follows:
a synchronous calibration method for trigger signal transmitting direction, which adopts the synchronous calibration device for trigger signal transmitting direction, includes the following steps:
step S1: during calibration, the second controller controls to obtain configuration information of the AC calibration board according to the channel mapping relation table; when the measurement is triggered, the configuration information is sent to the AC calibration board to realize dynamic configuration;
step S2: the first controller controls the N TDC chips (TDC1, TDC2 and … tdcN) to collect data and controls the first data interface to send the collected original data out through the first data interface;
step S3: the second controller controls the second data interface to receive the original data sent by the first data interface, and forms the connection relation between each channel of the N TDC chips (TDC1, TDC2 and … tdcN) and M data channels (ch1, ch2 and … chM) according to the channel mapping relation table, so as to obtain and store the delay data in the M data channels (ch1, ch2 and … chM).
According to the technical scheme, the equipment and the calibration method for synchronous calibration of the trigger signal sending direction solve the problem of adaptation to an AC calibration board when a new type of digital board is added. The new digital board is adapted under the condition that the AC calibration board is not changed, and the development difficulty is greatly reduced.
Drawings
FIG. 1 is a schematic diagram showing the connection relationship between each channel of an AC calibration board and a digital board channel in the prior art
FIG. 2 is a schematic diagram illustrating a connection relationship between each channel of the AC calibration board and a channel of the digital board according to an embodiment of the present invention
FIG. 3 is a schematic diagram of a testing method for synchronous calibration of trigger signal transmitting directions according to an embodiment of the present invention
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to fig. 2-3.
It should be noted that, the synchronous calibration apparatus and calibration method for trigger signal sending direction of the present invention, which stores and processes the mapping relationship with the channels of the AC calibration board on the digital board, the AC calibration board is only responsible for measuring the trigger time of all channels. Specifically, the data measured by all the tdc chips in the AC calibration board is sent to the digital board. And after the digital board receives the data, mapping the tdc chip data onto the channel to be measured according to a channel mapping relation table stored in the digital board to finish measurement.
In the embodiment of the invention, the synchronous calibration device for the trigger signal sending direction comprises a digital board module and an AC calibration board module, which are the same as the prior art.
Unlike the prior art, the AC calibration board module includes a first data interface, a first controller, and N TDC chips (TDC1, TDC2, … tdcN); the first controller controls the N TDC chips (TDC1, TDC2 and … tdcN) to collect data and controls the first data interface to send the collected original data out through the first data interface; typically, each TDC chip has three measurement channels, and the raw data is data collected by all the TDC chips (TDC1, TDC2, … tdcN).
The digital board module comprises a second data interface, a second controller, a channel mapping table and M data channels (ch1, ch2, … chM); the second controller controls the second data interface to receive original data sent by the first data interface, and forms a connection relation between each channel of the N TDC chips (TDC1, TDC2 and … tdcN) and M data channels (ch1, ch2 and … chM) according to the channel mapping relation table to obtain and store delay data in the M data channels (ch1, ch2 and … chM); m and N are more than or equal to 1, and M is less than or equal to the total channel number of N TDC chips (TDC1, TDC2 and … tdcN).
During calibration, the second controller controls to obtain the configuration information of the AC calibration board according to the channel mapping relation table, the digital board stores the mapping relation table of the channel of the digital board and the channel of the AC calibration board, a specific channel connection mode is recorded in the table, and the table can obtain the configuration of the TDC chip. And when or before the measurement is triggered, sending the configuration information to the AC calibration board to realize dynamic configuration and trigger the measurement.
Example 1
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a connection relationship between each channel of the AC calibration board and a channel of the digital board according to an embodiment of the present invention. As shown in fig. 2, the synchronous calibration device for the trigger signal sending direction includes a digital board module and an AC calibration board module; the AC calibration board comprises 20 TDC chips (TDC1, TDC2, … TDC20), the digital board comprises 60 data channels (ch1, ch2, … ch60), and the connection relationship between each channel of each TDC chip and the digital board channel is mainly represented by the mapping relationship among the channels. Also, each TDC chip has three measurement channels (step1, step2, and step3), and thus 20 TDC chips also have 60 channels.
In the embodiment of the invention, the digital board stores a mapping relation table of 60 data channels (ch1, ch2, … ch60) and all channels (20 × 3) of the AC calibration board, each channel and connection mode of the digital board are recorded in the table, and the configuration of each TDC chip can be obtained from the table.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a testing method for synchronous calibration of a trigger signal transmitting direction according to an embodiment of the invention. The synchronous calibration method for the trigger signal sending direction adopts the synchronous calibration device for the trigger signal sending direction, and comprises the following steps:
step S1: during calibration, the second controller controls to obtain configuration information of the AC calibration board according to the channel mapping relation table; when the measurement is triggered, the configuration information is sent to the AC calibration board to realize dynamic configuration;
step S2: the first controller controls the 20 TDC chips (TDC1, TDC2, … TDC20) to collect data and controls the first data interface to send the collected original data out through the first data interface;
step S3: the second controller controls the second data interface to receive the original data sent from the first data interface, forms a connection relation between each channel of the 20 TDC chips (TDC1, TDC2, … TDC20) and 60 data channels (ch1, ch2, … ch60) according to the channel mapping relation table, obtains delay data in the 60 data channels (ch1, ch2, … ch60), and saves the delay data.
In summary, the synchronous calibration apparatus and calibration method for trigger signal transmission direction according to the present invention stores the mapping relationship table between the own channel and the AC calibration board channel through the digital board, and the table records the specific channel connection manner, so that the configuration of the tdc chip can be obtained from the table.
Send configuration to AC calibration board before measurement and trigger measurement. The raw data measured by the AC calibration board is the time measured for all three channels of the tdc chip. These data are sent to the digital board. And after receiving the original data, the digital board obtains the measurement time of the channel according to the channel mapping relation table.
The above description is only for the preferred embodiment of the present invention, and the embodiment is not intended to limit the scope of the present invention, so that all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the scope of the present invention.
Claims (4)
1. The synchronous calibration device for the trigger signal sending direction is characterized by comprising a digital board module and an AC calibration board module;
the AC calibration board module comprises a first data interface, a first controller and N TDC chips (TDC1, TDC2, … tdcN); the first controller controls the N TDC chips (TDC1, TDC2 and … tdcN) to collect data and controls the first data interface to send the collected original data out through the first data interface;
the digital board module comprises a second data interface, a second controller, a channel mapping table and M data channels (ch1, ch2, … chM); the second controller controls the second data interface to receive original data sent by the first data interface, and forms a connection relation between each channel of the N TDC chips (TDC1, TDC2 and … tdcN) and M data channels (ch1, ch2 and … chM) according to the channel mapping relation table to obtain and store delay data in the M data channels (ch1, ch2 and … chM); m and N are more than or equal to 1, and M is less than or equal to the total channel number of N TDC chips (TDC1, TDC2 and … tdcN).
2. The device according to claim 1, wherein the second controller controls to obtain the configuration information of the AC calibration board according to the channel mapping relationship table during calibration, and sends the configuration information to the AC calibration board to implement dynamic configuration during measurement.
3. The device for synchronous calibration of trigger signal transmission direction according to claim 2, wherein said M is 60, N is 20, each said TDC chip has three measurement channels, and said raw data is data collected from 60 channels of all said TDC chips (TDC1, TDC2, … TDC 20).
4. A method for synchronously calibrating a transmission direction of a trigger signal, which uses the apparatus for synchronously calibrating a transmission direction of a trigger signal according to any one of claims 1 to 3, comprising the steps of:
step S1: during calibration, the second controller controls to obtain configuration information of the AC calibration board according to the channel mapping relation table; when the measurement is triggered, the configuration information is sent to the AC calibration board to realize dynamic configuration;
step S2: the first controller controls the N TDC chips (TDC1, TDC2 and … tdcN) to collect data and controls the first data interface to send the collected original data out through the first data interface;
step S3: the second controller controls the second data interface to receive the original data sent by the first data interface, and forms the connection relation between each channel of the N TDC chips (TDC1, TDC2 and … tdcN) and M data channels (ch1, ch2 and … chM) according to the channel mapping relation table, so as to obtain and store the delay data in the M data channels (ch1, ch2 and … chM).
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Cited By (1)
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