Datasheet

I2C Bootloader
Document Number: 001-13258 Rev. *J Page 31 of 39
4. Connect the CY3240 USBtoIIC bridge to the target system. Use the GUI to set the power to the
required level. This power can be used to supply power to the target depending on the power require-
ments of the target system. The status bar at the bottom of the GUI must indicate that the bridge is
connected and powered. In addition, ensure that the “Send all strings" box is checked at the bottom of
the USBtoIIC GUI to send the entire download file. By unchecking the “Send all strings" box, small
pieces of the download file may be highlighted and sent for testing purposes.
5. Click the Send button to download the new code. The status of various I2C transactions appears in the
status area. Note that “+" denotes a successful transaction.