Digital Recording Computer System with the Function of Recording Measurement Data to SDHC Memory Card

Purpose of research. The main idea of the article is to develop a digital device created on domestic components and designed to record measurement information with the function of recording on a memory card and transferring it to a personal computer using a USB-interface. The article also considers the tasks to be solved.

Methods. Having analyzed possible alternative variants of development of the registering computer system, the authors offer a variant of its realization on the microcontroller, in the software of which it is necessary to provide the following functions: realization of information exchange via RS-485 interface; realization of exchange via USB 2.0 interface for transfer of the accumulated registered information to the computer; realization of recording, reading and erasing of the registered information on the flash-drive; realization of the counter of its own time with uninterrupted work at the time of the registration of the information on the microcontroller.

Results. This paper develops a digital device designed for digital registration with the function of recording measurement information on an SDHC memory card. The operation of the device consists in providing registration of information with saving it in the form of files on a memory card of SDHC format. Access to the registered information is made from a computer via USB 2.0 interface in the memory device mode by means of a software driver realized in the microcontroller 1986BE92T of the Milandr company. Initialization of the device is carried out with the help of a computer, through the driver implementing hardware bridge USB-UART on the standard USB 2.0.

Conclusion. The obtained results satisfy the set goal and objectives. A textual description of the microcontroller firmware in C language is developed. In addition, the paper develops application software designed to obtain measurement results and send control commands to the microcontroller. The field of application of the proposed device is specialized computing systems designed for digital recording of information.

1. Toropov E.I., Vashurin A.S., Tumasov A.V., Yarzhemskiy A.D. Model'noorientirovannoe proektirovanie pri razrabotke vstraivaemogo programmnogo obespecheniya blokov upravleniya v avtomobil'noi promyshlennosti [Model-oriented design in the development of embedded software for control units in the automotive industry]. Izvestiya MSTU MAMI. 2019, no. 3 (41), pp. 80-85.

2. Aab A.V., Galushin P.V., Popova A.V., Terskov V.A. Mathematical model of reliability of information processing computer appliances for real-time control systems. Siberian Journal of Science and Technology, 2020, vol. 21, no. 3, pp. 296-302.

3. Panarin O., Zacharov I. Monitoring mobile information processing systems. Russian Digital Libraries Journal, 2020, vol. 23. no. 4, pp. 835-847.

4. Schildt Herbert. S++: polnoe rukovodstvo [C++: complete guide]. Moscow; St. Petersburg, Dialectics Publ., 2020. 796 p.

5. Summerfield Mark. Qt. Professional'noe programmirovanie: razrabotka krossplatformennykh prilozhenii na S++. [Professional programming: development of crossplatform applications in C++]. St. Petersburg; Moscow: Symbol-Plus; 2018. 560 p.

6. Clemens Ben. Yazyk S v XXI veke [Language C in the XXI century]. Moscow, DMK Press Publ., 2015. 376 p.

7. Lukyanchikov A.V., Nesterenko A.I. Krosplatformennoe programmirovanie doverennykh mikrokontrollerov 1986VE92 [Cross-platform programming of trusted microcontrollers 1986BE92]. Sovremennye problemy radioelektroniki i telekommunikatsii = Modern Problems of Radio Electronics and Telecommunications, 2022, no. 5, p. 87.

8. Blagodarov A.V., Vladimirov L.L. Programmirovanie mikrokontrollerov na osnove otechestvennykh mikroskhem semeistva 1986VE9x razrabotki i proizvodstva kompanii Milandr [Programming of microcontrollers based on domestic microchips of 1986BE9x family developed and produced by Milandr]. Moscow, Milandr Publ., 2016. 242 p.

9. Vasiliev A. E. Vstraivaemye sistemy avtomatiki i vychislitel'noi tekhniki. Mikrokontrollery [Embedded systems of automatics and computer engineering. Microcontrollers]. Moscow, Goryachaya Liniya-Telecom Publ., 2018, 590 p.

10. Motalo R.V., Bragin A.N. Importozameshchenie na rynke elektronnykh komponentov [Import substitution in the market of electronic components]. Izvestiya Tul'skogo gosudarstvennogo universiteta. Tekhnicheskie nauki = Izvestiya Tula State University. Technical Sciences, 2023, no. 1, pp. 27-29.

11. Vasenev A.A. Sorokin S.A. Organizatsiya vneshnego failovogo obmena dlya portativnogo elektronnogo ustroistva na baze mikrokontrollera [Organization of the external file exchange for the portable electronic device based on the microcontroller]. Promyshlennye ASU i kontrollery = Industrial ACS and Controllers, 2022, no. 4, pp. 19-26.

12. Kochetkov V.V. Zobnin B.B. Problemy i perspektivy ispol'zovaniya mikrokontrollerov v ASU TP [Problems and perspectives of microcontrollers use in ACS]. Sovremennaya nauka: aktual'nye problemy teorii i praktiki. Seriya: Estestvennye i tekhnicheskie nauki = Modern Science: Actual Problems of Theory and Practice. Series: Natural and Technical Sciences. 2019, no. 11, pp. 81-85.

13. Osolinsky A.R., Kochan O.V. Stend issledovaniya metodicheskikh pogreshnostei sistemy izmereniya srednego energopotrebleniya mikrokontrollerov [Research bench of the methodical errors of the system for measuring the average power consumption of the microcontrollers]. Vestnik Brestskogo gosudarstvennogo tekhnicheskogo universiteta. Fizika, matematika, informatika = Vestnik of Brest State Technical University. Physics, Mathematics, Informatics, 2015, no. 5 (95), pp. 6-10.

14. Zheleznyak O.A. [Application of microcontrollers for measuring parameters of aircraft power supply system]. Gagarinskie chteniya 2017. Tezisy dokladov [Gagarin readings 2017. Theses of reports]. Moscow, 2017, pp. 942-943 (In Russ.).

15. Kolesnikov D., Sukhoterin E., Bogdanov V., Pavlyuk Y., Tuchin A.. Novaya mikroskhema priemoperedatchika dlya interfeisa RS-485 kompanii AO "PKK Milandr" [New transceiver chip for RS-485 interface of the company "PKK Milandr"]. Elektronika: Nauka, tekhnologiya, biznes = JSC. Electronics: Science, Technology, Business, 2021, no. 4 (205), pp. 80-87.

16. Tyagulskaya L.A., Dubinin I.A. Organizatsiya dvustoronnei svyazi s mikrokontrollerami po interfeisu RS-485 [Organization of two-way communication with microcontrollers via RS-485 interface]. International Scientific Review, 2016, no. 1 (11), pp. 34-36.

17. Scherbakov A.A. Rekomendatsii po vyboru skhemy soedinenii dlya setei na osnove RS-485 [Recommendations on the connection scheme selection for the RS-485-based networks]. Nauchno-Issledovatel'skii Tsentr "Science Discovery" = Scientific Research Center "Science Discovery", 2022, no. 11, pp. 573-576.

18. Lih V. USB-nakopiteli informatsii korporativnogo i industrial'nogo klassa [USB information storage devices of corporate and industrial class]. Elektronika: Nauka, tekhnologiya, biznes = Electronics: Science, Technology, Business, 2022, no. 3 (214), pp. 110-113.

19. Subbotin N.Yu., Selivanov K.V. Analiz perspektiv primeneniya interfeisa USB [Analysis of the USB interface application perspectives]. Tekhnologii inzhenernykh i informatsionnykh sistem = Engineering and Information Systems Technologies, 2021, no. 4, pp. 60-69.

20. Demchenko V.V., Obukhov P.S., Ivliev E.A. Development of a software and hardware solution for monitoring and control of the greenhouse microclimate by RS-485 bus with MODBUS RTU interface. European Journal of Natural History, 2021, no. 6, pp. 66-69.