User manual

Radiocrafts
Embedded Wireless Solutions
RC-IESM-Series
2010 Radiocrafts AS RC-IESM User Manual (rev. 1.20) Page 6 of 14
Data from UART1 via UART2 for module configuration and communication
For detailed instructions on how to handle I/O’s on the GPC connector and for changing
UART1 and UART2 Baud rates and handshake, see the RTG User Manual.
Common to all IESM-boards:
- UART2 default settings are 19200 Baud, no parity, 1 start and stop bit, no
handshake. These are also the default settings for all IESM boards except RC2400-
ZNM-IESM, thus no modification of UART2 settings is required. For using RC2400-
ZNM-IESM, see below. If UART2 settings have been changed from its defaults,
remember that baud rate and handshake settings are stored in non-volatile memory
inside the modem, thus these values have to manually be changed to match the
IESM boards default settings even after power off/on on the modem.
1. Connect a HyperTerminal window to UART1 as described in the Quick Start
section
2. Switch off hardware handshake on UART1 via AT+IFC=0,0
3. Disconnect HyperTerminal and disable HW flow control (select “None” for flow
control under HyperTerminal Port Settings/Flow control). Then re-connect the
COM-port
4. Enter transparent UART-UART communication via AT+MODE=2, wait for prompt
“+MODE: TRANSPARENT”
5. Release the COM-port
RC232 protocol modules
See the related document RC232-CCT User Manual for a detailed description on how to use
the PC Tools from Radiocrafts for configuration and communication with the module with the
embedded RC232 protocol. Follow step 1-5 above, then;
- Start the CCT program
- Connect to the correct COM-port (normally COM1, RS232-port) where the Sierra
Wireless modem is connected (write manually 115200 as baud rate if this is not an
option in the CCT-menu)
- Wireless communication to another module (or module on a Demo Board) can
directly be done by entering text strings at the Terminal Line and send with the right-
pointing arrow
- To enter configuration mode for the module, place the text +++ in the terminal line
and tick for “NONE” (no CR or LF) and send the text by clicking the arrow. When the
modem responds, place the text AT+GPIO=1,0,4 in the Terminal Line. Tick for CR
and send the text.. Then write AT+MODE=2 and send this text with CR ticked
- Press the configure button in CCT; The program now displays “waiting for prompt
sign (..)”
- Place any invalid command-character in the Terminal Line (for example d) and send
the line twice, the module then responds with its prompt
- The module has entered configuration mode and now responds with the prompt,
making it possible to read back data and change requested locations
- Change parameters as described in the CCT User Manual
- After exiting configuration mode and before being able to communicate in transparent
mode, write +++ and wait for response (as described above) followed by
AT+GPIO=1,1,4 in the Terminal Line to set the Config-pin high and finally
AT+MODE=2 to place the module in serial mode again