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UM0290 Datasheet(PDF) 53 Page - STMicroelectronics

Part # UM0290
Description  This document presents a description
PDF  76 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0290 Datasheet(HTML) 53 Page - STMicroelectronics

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UM0290
Virtual COM port demo
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6
Virtual COM port demo
In modern PCs, USB is the standard communication port for almost all peripherals. However
many industrial software applications still use the classic COM Port (UART). The Virtual
COM Port Demo provides a simple solution to bypass this problem. It uses the USB as a
COM port with affecting the legacy PC application designed for COM Port communication.
The Virtual COM Port demo provides the firmware examples for all STRxxx family devices
and the PC driver. This section provides a brief description of the implementation, and the
way to run the demo.
6.1
Virtual COM port demo proposal
The demo proposal is to use the evaluation board as an USB-to-UART bridge and to provide
communication between a laptop (without UART Port) and a normal PC as shown in the
below in Figure 12. The PC application used in the communication is Windows
HyperTerminal. See Figure 13.
Figure 12.
Virtual COM Port demo as USB-to-UART bridge.
Figure 13.
Communication example
USB
UART
Eval Board



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