Cypress CYUSBS234 Краткое руководство по эксплуатации - Страница 3

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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 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

SW3

LED D7

CYUSBS234 QUICK START GUIDE

Step 10: USB–SPI Bridge Con guration

• Repeat step 6

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

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

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

Step 12: USB–SPI Bridge Testing

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

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

Step 13: CapSense Button

• Touch the CapSense

• Remove the nger from the B1 CapSense button and

and click the Program button. The 'Program succeeded'

message appears. Click OK to continue

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

as an SPI bridge

default EEPROM page address

and transmitted data is identical, the 'Data veri cation

successful' message appears. The test proves successful

data transfer with the SPI interface

button B1, as shown in the gure.

The D7 LED glows to indicate that the button is sensed

the LED turns OFF to indicate that the button is released

J17 J19 J21 J20