WI.M868X-EVM Radiotronix, WI.M868X-EVM Datasheet - Page 12

• Manufacturer Part Number: WI.M868X-EVM
• Description: RF Modules & Development Tools Wi.M868X-EVM Evaluation Module
• Manufacturer: Radiotronix

Specifications of WI.M868X-EVM

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: WIM868X-EVM

RK-WI.M868X-R USER’S MANUAL
5. Notes
5.1. Microsoft/ Hilgraeve HyperTerminal
The RK-Wi.M868X-R
and send files using file transfer protocols such as ZMODEM. HyperTerminal and many other terminal
programs assert RTS by default. On the evaluation board, the RTS line is tied to the CMD pin on the
module. 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 moduSle will be interpreted as commands and will NOT be
sent to the RF engine for transmission. Additionally, if an evaluation board is switched 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 evaluation board with HyperTerminal or other terminal program, you must first remove the
jumpers from pins 7+8 of JP2, if you are using an RS-232 connection to your PC, or JP3, if you are using a
USB connection to your PC. Removing this jumper will disconnect the RTS line from the CMD pin on the
module, allowing normal operation.
5.2. Loopback Mode
The RK-Wi.M868X-R
as to link together the TXD and RXD lines to and from the module in the remote evaluation board.
Using this mode, the user can send data from their local
evaluation board and have it re-transmitted back to them by
the remote evaluation board. The maximum baud rate
allowed in loopback mode is 38400 baud for point to point
communications only.
Loopback mode using the RS232 jumpers:
TM
TM
kit can be operated in a loopback mode by configuring the COM jumpers in such a way
Evaluation Kit can be used with HyperTerminal to receive and transmit RS-232 data
11
Figure 5: RS-232 Jumpers
Chapter
5