FreeWave Technologies Inc. 1521131FFF Manuale Utente

Pagina di 62
 Spread Spectrum Wireless Data Transceiver User Manual 
LUM0002AG Rev A 
Version 7.0 
17 
Troubleshooting HyperTerminal 
The following are some common issues encountered while using HyperTerminal. 
1. 
Nothing appears on the screen after pressing the Setup button on the transceiver. 
This usually indicates one of two things; either the wrong Com port is selected or a null modem 
RS-232 cable is being used. Follow the steps below to change the Com ports. 
1. 
Click on the Disconnect button.  
2. 
Select Properties from the File menu.  
3. 
Click on the Connect To tab and verify that the correct Com port is selected. 
4. 
Click on the OK button to close the Properties dialog box. 
5. 
Click on the Call button.   
6. 
Return the transceiver to Setup mode. The Setup menu screen should appear. 
2. 
Gibberish appears on the screen after pressing the Setup button. 
This usually indicates a Baud Rate problem. Follow the steps below to change the Baud Rate. 
The problem may also be that the transceiver under test is a TTL version and NOT RS-232.  
Gibberish BEFORE the Setup button is pressed indicates Diagnostics is enabled in a Master.  
1. 
Click on the Disconnect button.  
2. 
Select Properties from the File menu.  
3. 
Click on the Configure button. 
4. 
Change the Baud Rate to 19200 and click on the OK button. 
5. 
Click on the OK button to close the Properties dialog box. 
6. 
Click on the Call button.  
7. 
Return the transceiver to Setup mode. The Setup menu screen should appear. 
3. 
The Setup menu appears on the screen, but nothing happens when keys on the keyboard 
are pressed. 
This usually indicates a three-wire connection, Rx, Tx & Gnd. Follow the steps below if the connection 
uses a three-wire connection. 
1. 
Click on the Disconnect button.  
2. 
Select Properties from the File menu.  
3. 
Click on the Configure button. 
4. 
Change the Flow Control to None and click on the OK button. 
5. 
Click on the OK button to close the Properties dialog box. 
6. 
Click on the Call button.   
7. 
Return the transceiver to Setup mode. The Setup menu screen should appear. 
4. 
A connection exists, data is being received through HyperTerminal, and some data is 
correct, but the remaining data is in unrecognizable characters. 
This usually indicates a parity mismatch. To resolve this issue, ensure that the parity of the 
transceiver and the parity of HyperTerminal are set the same. HyperTerminal’s parity settings are 
under Properties and the FreeWave parity is found under the Baud Rate in the Setup mode. 
1.  Click on the Disconnect button.  
2.  Select Properties from the File menu. 
3.  Click on the Configure button. 
4.  Change the Parity to None and click on the OK button. 
5.  Click on the OK button to close the Properties dialog box. 
6.  Click on the Call button.   
Return the transceiver to Setup mode. The Setup menu screen should appear. 
 
For additional troubleshooting for HyperTerminal, call FreeWave Technical Support at (303) 381 9200.