工具类–隔离式USB转UART

连接ing an embedded systems UART to a PC through a USB to UART converter is something that every embedded software developer is familiar with.  Many developers don’没有FTDI23就离开家2R board from Sparkfun (//www.sparkfun.com/products/12731).  The 上 ly problem with this great little tool though is that it doesn’t provide any protection to the PC in the event that something goes terribly wrong with the embedded system and vice-versa.

MINIUSB_B300

There are a number of different ways that a developer can add isolation to the standard break-out board; however, there are also a number of other low cost break-out boards that do provide protection for the PC and embedded system.  One option is a board from Saurus Electornics located at http://www.sauruselectronics.com/products/SE10000/ and runs for around $15 euros.  This board has added opto-isolators to the FTDI232.  One down-side of adding isolation is that the 3 Mbps will most like be unattainable.  The limits seem to be around 1 Mbps which should still be good enough for most applications.

隔离USB至UART的来源确实没有’没关系。重要的是要保护PC和嵌福建省体彩网系统免受任何意外的影响,并且至少应具有1 Mbps的波特率。 Saurus板是低成本解决方案的一个示例。还有其他更强大,更专业的解决方案,例如B的解决方案&B.请记住,只要有合适的工具可用并防止意外事故,项目就会变得更加顺利!

(下个月,我将举例说明如何构建自己的低成本隔离USB->Uart board).

 

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