Cypress CYUSBS234 User manual

USB-SERIAL DEVELOPMENT KIT

CYUSBS234 QUICK START GUIDE

Step 2: Powering the Board*

• Connect the board to the PC using the USB cable

• LEDs D2 and D4 glow to indicate that the board

is powered

Step 1: Software Installation

• Download and unzip the ISO le from

www.cypress.com/go/CYUSBS234

• Run cyautorun.exe and follow the steps in the

installer window

• Install Tera Term from the following location:

<Install directory>/Cypress/CYUSBS234 DVK/

1.0/teraterm

Step 3: Enumeration

• The device appears as a USB Serial Port (COM#)

in the Device Manager. (To launch the Device Manager

in Windows 7, click Start and type Device Manager in

‘Search programs and les’ box)

Step 4: Testing Basic UART Functionality

• Connect J15.3 (TXD) to J15.2 (RXD) with the provided

jumper wire

as shown above

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

• Click Serial and select Port (COM#) in the 'Tera Term:

New Connection' window, and then click OK

• Enable local echo option (go to Setup > Terminal

and check the local echo box)

• Type 'HELLO WORLD'. The text appears on the same

terminal and each character appears twice -

'HHEELLLLOO WWOORRLLDD'

* Connect the board to the PC only after software installation. For the latest software updates on

Windows, Linux, MAC, and Android, visit www.cypress.com/go/usbserial

Note:

Kit based on USB-Serial bridge - CY7C65211

LEDs D2

and D4

J15

1 2 3 4 5

67 8 9

CYUSBS234 QUICK START GUIDE

Step 5: 10-MB File Transfer at 1 Mbps, with no Data Loss

• Connect J15.3 (TXD) to J15.2 (RXD) and J15.7 (RTS)

to J15.8 (CTS), with the provided jumper wires

• Go to Setup > Serial Port in the Tera Term window,

and enter 1000000 in the baud rate box. Select

Hardware in the Flow control drop-down menu; go to

Setup > Terminal > Receive and select CR+LF.Click OK

• Enable le capture: go to File > Log; uncheck Append

and select <le name> to save the received data

• Go to File > Send File and select the Test.txt le from

<Install directory>\Cypress\CYUSBS234 DVK\1.0

• The 'Tera Term: Send le' window shows effective

data throughput; multiply by 2X to get uni-directional

throughput

• Compare Test.txt and received le, using any le

compare utility to verify data integrity

Step 7: USB–I2C Bridge Conguration

• Click the SCB tab. Select I2C from the drop-down menu

and click the Program button. The 'Program succeeded’

message appears. Click OK to continue

• Click the Disconnect button to disconnect the board

from the conguration utility

• Press the reset switch, SW3 (refer to the gure in

step 13). The board enumerates as an I2C bridge

• Set jumpers J17 and J20 as shown in the gure above

to connect I2C EEPROM to the CY7C65211 device

Step 6: Device Connection to Conguration Utility

• Run the conguration utility from Start > All Programs

> Cypress > CYUSBS234 DVK > USB Serial

Conguration Utility

• Click the Select Target tab. Select the device

USB-Serial (Single Channel) Vendor MFG from the

drop down menu and click Connect

Step 8: USB–I2C Test Utility

• Run the USB Serial Test Utility from Start > All

Programs > Cypress > CYUSBS234 DVK >

USBSerialTestUtility

• Change the Product ID to 0004 to match the default

Cypress PID. The test utility lists the I2C interface on

the board. Click OK to continue

J17 J20

J15

1 2 3 4 5

67 8

(RTS) (CTS)

(RXD) (TXD)

CYUSBS234 QUICK START GUIDE

Step 9: USB–I2C Bridge Testing

• Click the Write data button. Data gets written at the

default EEPROM page address

• Click the Read & verify data button. When the received

and transmitted data is identical, the ‘Data verication

successful’ message appears at the bottom of the

window. The test proves successful data transfer with

the I2C interface

Step 12: USB–SPI Bridge Testing

• Click the Write data button. Data gets written at the

default EEPROM page address

• Click the Read & verify data button. When the received

and transmitted data is identical, the ’Data verication

successful’ message appears. The test proves successful

data transfer with the SPI interface

Step 10: USB–SPI Bridge Conguration

• Repeat step 6

• Click the SCB tab. Select SPI from the drop-down menu

and click the Program button. The 'Program succeeded’

message appears. Click OK to continue

• Click the Disconnect button. Press the reset switch, SW3

(refer to the gure in step 13). The board enumerates

as an SPI bridge

• Set jumpers J17, J19, J20, and J21 as shown above

Step 13: CapSense Button

• Touch the CapSense®button B1, as shown in the gure.

The D7 LED glows to indicate that the button is sensed

• Remove the nger from the B1 CapSense button and

the LED turns OFF to indicate that the button is released

LED D7 SW3

Step 11: USB–SPI Test Utility

• Run the USB Serial Test Utility from Start > All

Programs > Cypress > CYUSBS234 DVK >

USBSerialTestUtility

• Change the Product ID to 0004 to match the default

Cypress PID. The test utility lists the SPI interface

available on the board. Click OK to continue

J17 J19 J21 J20

USB-SERIAL DEVELOPMENT KIT

For the latest information about this kit and to download kit software and hardware les,

visit www.cypress.com/CYUSBS234

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

Doc.#: 001-88345 Rev.*F

DB9 Connector

J15

I2C

EEPROM U7

CapSense®

Button B1

SPI

EEPROM U8

SCB (Serial Communicaton Block)

Conguration Jumpers

J17, J19, J21, J20

GPIO Header J23

RS232

Line Driver U5

Power Jack J1

Power LEDs

D2 and D4

Battery

Switch SW2

Reset Switch SW3

CapSense

LED D7

USB Micro-B

Connector J2

Power Switch

SW1

CY7C65211

(USB-Serial)

Battery

Connector BH1

Battery

Charger IC U3

CYUSBS234 QUICK START GUIDE

Note: By default, the SCB conguration jumpers are set for the USB-UART bridge as shown above. Refer to the

Table 3-1 in the kit guide for additional information on default jumper settings.

Kit operation: The CY7C65211, USB-Serial bridge controller can be congured as an USB-UART bridge,

an USB-I2C bridge, or an USB-SPI bridge. As an USB-UART bridge, data is transmitted from USB to UART (TXD).

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. The CY7C65211 controller also supports battery charger detection and congurable

CapSense functionality, providing best-in-class signal-to-noise ratio (SNR) and water-tolerance

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