Electronic measuring device and method of converting serial data to parallel data for storage using the same

Abstract

The invention relates to an electronic measuring device and a method of converting serial data to parallel data for storage using the same. The electronic measuring device includes a detection channel module, a sampling module, a control unit, a data path selector and a memory device. A user will be able to selectively enable the desired detection channels, set open or close of each detection channel, and store only data collected from enabled channels. The data collected from the detection channels are in serial data form. The device utilizes a serial-parallel shifter in its sampling module to convert the serial data to parallel data bytes. The innovative data conversion and storage methods of this invention will significantly conserve memory space that otherwise will be occupied by data from the disabled channels, solve waste problem of memory storage space, and through disposing of storage space indications, allow accurate and efficient reading of the stored data.

Description

technical field [0001] The present invention relates to an electronic measuring device and its serial-to-parallel data sorting method, especially to the processing method of the electronic measuring device, which can analyze and store the sampling data of individually opened detection channels, so as to achieve effective application of memory Space and the effect of improving the efficiency of data analysis. Background technique [0002] Today, as electronic products are increasingly digitized, traditional oscilloscopes are no longer sufficient to measure signals with more than 8 to 16 detection channels. Although the online simulator (ICE) can solve many digital problems, the real timing problem still cannot be solved. The software development-oriented online simulator is used for processing, and the online simulator is dedicated to a specific microcomputer system. Therefore, the logic analysis device has become one of the necessary measuring instruments for digital enginee...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, it is a schematic diagram of the sampling data storage mode of a general traditional logic analysis device. It can be seen from the figure that under the traditional technology, the bit data stored in the memory 3 of the electronic measuring device refers to all the detection channels in the detection channel module 2. The serial sorting bit data of the detection channel 21 is transmitted to the internal space of the memory 3 for storing the bit data, while the part of the detection channel 21 in the detection channel module 2 inside the electronic measuring device does not receive the data from the external device 1 The electronic signal transmitted, but when it is stored, the detection channel 21 that does not receive the electronic signal of the external device 1 will also transmit the data to the memory 3 for storage in the form of blank data, so that it transmits a whole The serial order bit data of the detection channel module 2 is used to fill up the space of the memory 3. Therefore, in this data storage mode, if the detection channels 21 are not all opened, in order to maintain the relative address storage data of the memory 3 Therefore, the detection channel 21 that has not received the electronic signal will transmit blank data to the memory 3, so that the data stored in each address is the serial order transmitted by a whole batch of detection channel modules 2 Bit data, so that the storage space of each memory 3 address will be filled with data, so as to ensure the correct interpretation of the data, but this will also cause a waste of memory 3 storage space

[0003] For this reason, many operators are actively developing logic analysis devices that can save the storage space of storage modules, such as figure 2 As shown, it is a schematic diagram of the sampling data storage mode of another conventional logic analysis device, which has a detection channel module 4 with a plurality of detection channels 41, and the detection channel module 4 has 16 detection channels 41, which can be Receiving the signal transmitted by the external device 1, although the storage method of this logic analysis device can use the space of the memory 3 more effectively, but because of the bit data stored in the memory 3, there is no special distinction. The single-bit data obtained by each channel is stored in the memory 3 for storage. Under continuous sampling, all the received bit data is only serially output to the memory 3 for storage, and there is no special detection The signal source distinguishes the data storage, so that when the user wants to interpret the data, he needs to interpret the data stored in the memory 3 first, and interpret which group of detection channels 41 each data belongs to, which is transmitted to the memory 3 for storage, leading to interpretation The complexity increases, and the software needs to consume a lot of computing power of the computer to interpret the data

And when all the storage spaces in the memory 3 are filled with data, subsequent data will overwrite the storage space at the start end, which will also cause the loss of the start position information of data interpretation, resulting in data interpretation errors

[0004] Therefore, if an electronic measuring device and its serial-to-parallel data sorting method can be provided, it can solve the problem of incomplete detection data caused by current logic analysis devices when storing detection data, which affects the lack of detection functions. problem, the best solution

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