Chapter 3 | Operation |
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The receiver is in Navigation mode whenever sufficient satellite information and measurement data is available to produce a GPS fix. When the receiver has a valid position, the Nav Mode field in StarView’s LLH Solution, or XYZ Solution, window shows Nav
The SMART ANTENNA uses a comprehensive message interface. Input messages can be sent to the receiver using the Xmit Msg menu in StarView.
The following information is important when selecting commands:
1.You can send a message request using one shot (Normal mode) or continuous (Special mode) by selecting Xmit Msg General Message Request in StarView.
2.There is an option in StarView to save all messages transmitted by the receiver into a file. Select File/Port Save Data after you have finished selecting messages in Step #2 above.
The SUPERSTAR II Firmware Reference Manual provides the available messages and parameters that the SMART ANTENNA uses. See also Section B.2, StarView Software Installation starting on Page 45 and refer to the StarView User Manual for more information on the StarView program.
The receiver’s software resides in
3.3Non Volatile Memory
The receiver stores different types of information used to accelerate the TTFF and to configure the I/O in NVM. See Table 3 below for a partial list of the data stored in NVM.
PARAMETER |
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ALMANAC | The most recent almanac |
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LAST POSITION | Position in NVM is updated at different rates depending on the | ||
application. The last known position is always kept in battery back- | |||
| up SRAM. |
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DGPS CONFIGURATION | Differential GPS configuration |
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| Contains the following configuration information: | ||
1. | Mode of operation | 4. Time Alignment Mode State | |
| 2. | Baud Rate: 300 to 19200 | 5. Mask Angle |
| 3. | Default Binary message list | 6. Datum |
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Table 3: Non-Volatile Memory Data
22 | SMART ANTENNA User Manual Rev 6 |