Cypress Semiconductor CYUSBS232 Bedienungsanleitung

CYUSBS232 QUICK START GUIDE

Step 2: Powering the board*

• Connect the board to the PC using the USB cable

• LED D1 (as shown in next page) glows to

indicate the board is powered

Step 1: Software Installation

• Download and Unzip the ISO le from

www.cypress.com/go/CYUSBS232

• Run cyautorun.exe and follow the steps in the

installer window

• Install Tera Term from the following location:

<install directory>/Cypress/CYUSBS232 RDK/

1.0/teraterm

Step 3: Enumeration

• Device will appear as a USB Serial Port (COM#)

in the Device Manager (For example, in Win 7,

click Start > Control Panel > Device Manager)

Step 4: Testing basic UART functionality

• Connect TXD to RXD with the “Jumper wire”,

refer picture in next page

• Run Tera Term (Start > All Programs > Tera Term)

• In ”Tera Term: New Connection“ window, click

Serial and select Port (COM#), click OK

• Enable local echo option (go to Setup > Terminal

and check the local echo box)

• Type “HELLO WORLD”. Text will appear

on the same terminal **

* Connect the board to PC only after software installation. For the latest software updates and MAC/

LINUX/Android users visit www.cypress.com/go/usbserial

** Each character will appear twice – “HHEELLLLOO WWOORRLLDD”

Notes:

Kit operation: Data is transmitted from USB to UART (TXD). The TXD-RXD loop back connection enables the data

to be fed back to the UART (RXD) to USB and is displayed on the Tera Term window

Kit Based on USB-UART LP Bridge – CY7C65213

USB-UART REFERENCE DESIGN KIT

All trademarks or registered trademarks referenced herein are the properties of their respective owners.

Doc.# 001-87063 Rev.*C

CYUSBS232 QUICK START GUIDE

USB-UART REFERENCE DESIGN KIT

Micro-B

Connector

USB-UART LP

CY7C65213

D2 - Tx Activity LED

D3 - Rx Activity LED

GPIO0

CTS#

DCD#

DSR#

RI#

RXD

RTS#

GND

TXD

DTR#

GND

VBUS

VCCIO_OUT

GPIO2

GPIO4

GPIO3

GPIO1

GPIO0

GND

VBUS

VCCIO_OUT

GPIO2

GPIO4

GPIO3

GPIO1

Top View Bottom View

Not Used

D1 - Power LED

For the latest information about this Kit and to download Kit Software and Hardware les,

visit www.cypress.com/go/CYUSBS232

Step 5: 10 MB File transfer at 3 Mbps, with no Data-Loss

• In the Tera Term window, go to Setup > Serial Port, enter 3000000 in baud rate box, and select

Hardware in Flow control drop-down menu; go to Setup > Terminal > Receive, select CR+LF

• Connect TXD to RXD and CTS# to RTS#, with “Jumper Wires”

• Enable le capture: go to File > Log; uncheck Append and select <le name> to save the received data

• Go to File > Send File, select Test.txt le from <Install directory>\Cypress\CYUSBS232 RDK\1.0

• “Tera Term: Send le” window shows effective data throughput; multiply by 2X to get uni-directional

throughput. Actual throughput will be less than 3 Mbps, usually around 1 Mbps, due to protocol overhead

and PC Application latency

• Compare Test.txt and Received le, using le compare utilities to verify data integrity

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