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Vývojová deska s ARM Cortex M4

Authors: Volek, Lukáš;

Vývojová deska s ARM Cortex M4

Abstract

V práci jsem se převážně zaměřil na návrh univerzálního systému pro testování nejen mikrokontroléru STM32F407/417 od firmy STMicroelectronics, ale následně i různých senzorů a komunikačních sběrnic. Výsledkem tak je hlavní deska s mnoha specializovanými konektory pro jednotlivé sběrnice současně s konektory zpřístupňujícími všechny I/O piny. Napájení je díky pokročilejším verzím spínaných stabilizátorů opět variabilní od jednoho Li-Ion článku přes dvojici alkalických článků, autobaterii, běžné síťové napájecí adaptéry (stejnosměrné i střídavé do 15 Vpp), USB, laboratorní zdroje s několika výstupy až po POE (napájení přes Ethernet). Napájecí napětí jsou pod kontrolou komparátorů s optickou signalizací. (S jejich použitím je ve většině případů možné snadno určit postiženou větev bez měřicího přístroje a hořících součástek.) Dalším důležitým parametrem byla robustnost napájecích větví i komunikačních linek. V rámci možností je tedy osazeno množství TVS, tlumicích indukčností a velkých kondenzátorů s nízkým ESR. Software pro počítač je určen pouze k základní demonstraci funkčnosti.

In this work I aimed at designing a universal system for testing either STM32F407/417 by STMicroelectronics and later various sensors and communication buses. The result then is a main board with many specific connectors for individual buses even with connectors making all I/O pins accessible at the same time. Thanks to advanced switching regulators the power supply is capable of accepting a wide range of sources like single Li-Ion cell, pair of alkaline cells, 12V Lead battery, common wall power adapters (both DC and AC up to 15 Vpp ), USB, laboratory power supplies with multiple outputs and finally POE (Power Over Ethernet). Supply voltages are supervised by voltage comparators with an optical signalisation. (It is possible to determine the sick branch without a measuring instrument and blowing components in the most cases.) Another important parameter was a robustness of the supply and communication lines. There is a number of TVSs, chokes, and big and low ESR capacitors A PC software is intended for a basic functionality demonstration only.

C

Country
Czech Republic
Related Organizations
Keywords

Cortex M4, modular system, modulární systém, Switch, Přepínač, EvalBoard, Eternet, mikrokontrolér, UART, Ethernet, KMZ8895, modul, microcontroller, sensor, KMZ8995, ARM, module, STM32F417, STM32F407, vývojová deska, PHY, TCP/IP, senzor, Fyzická vrstva, USB

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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