User's Manual

RK-Wi.232DTS-FCC Rapid Development Kit User’s Manual

5 Notes

5.1 Microsoft Windows / Hilgraeve HyperTerminal

The Wi.USB-DTS™ can be used with HyperTerminal to receive and transmit RS-232 data and send files

using file transfer protocols such as ZMODEM. HyperTerminal and many other terminal programs assert

RTS by default. In the Wi.USB-DTS™, the RTS line is tied to the CMD pin on the module inside the

Wi.USB-DTS™ . When the CMD pin is held low, which is the case when the RTS line is asserted, the

module will be placed in command mode.

In command mode, all UART data sent to the module will be interpreted as commands and will NOT be

sent to the RF engine for transmission. Additionally, if a Wi.USB-DTS™ is powered on in the presence of

an asserted RTS line, it will perform a full hardware and flash reset to the factory defaults.

To use the Wi.USB-DTS™ with HyperTerminal or other terminal program, you must remove the cover,

locate the jumper “JP2”, and remove it. Removing this jumper will disconnect the RTS line from the CMD

pin on the Wi.232DTS™ module inside, allowing normal operation. It must be noted that while this jumper

is removed, commands cannot be sent to the Wi.USB-DTS™ . Everything sent to the Wi.USB-DTS™ will

be sent over RF.