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Lassen-SK8 Embedded GPS Module B-3
TSIP User's Guide
Command Packets TSIPCHAT uses keystroke codes to send TSIP Packet packets to the
receiver. For instance, the keystroke [v] sends the TSIP Packet 0x1F,
requesting a TSIP Report Packet 0x45 listing the software versions. A
complete list of keystrokes and their associated TSIP commands can be
called up by pressing the [?] key.
Many TSIP command packets require user-provided data or parameters.
For instance, a request for a satellite almanac report packet requires the
satellite identifier (SV PRN). In such cases, TSIPCHAT will prompt the user
for inputs. For any of the following three type of prompts, pressing the
[CTRL] + [Z] keys or [ESCAPE] key aborts the whole command:
1. prompt for number: to enter a numerical value, type the value and hit
[ENTER]. If no value is typed, the value entered will be 0.
2. prompt for selection: to select from a number of choices, cycle through
the choices with the [SPACE{BAR] and select with [ENTER]. An
index 0 - 9 associated with the choice is shown in parentheses; this
index can be typed in for direct access of the choice.
3. prompt for confirmation: to confirm when asked, type [y] or [y]'. Any
other keystroke will be 'negative', including just the [ENTER] key.
TSerial Port Control To control the serial port settings on the data channel, Channel A of the
Lassen-SK8, use the TSIP 0 x BB command.
To control the serial port settings on the computer, use the keystroke
[CTRL] + [I] keys. This keystroke does not generate a TSIP packet, it
prompts for the parameters for the buffered serial port. On start-up, the
program automatically sets the port parameters to 9600 baud, 8-odd-1. If
the port parameters are changed from the default during the execution of
TSIPCHAT, upon exit the program asks if the serial port is to be reset to the
default.
File Storage TSIPCHAT provides for file storage of a native binary TSIP stream. The
native binary stream records the data coming off the serial port into a file.
To turn data collection on and off, use the keystroke [CTRL] + [F]'. The
user has the option to append to a previously existing file. All report packet
bytes are recorded into the file, whether translatable into packets or not. The
exception is that using [ESCAPE] to terminate the program exits
gracefully, i.e. not record the partially-received packet at the end of the file.
Using the plus (+) character does not terminate gracefully and records all
bytes at the end. The recorded binary data stream is translated into an
ASCII file with the program TSIPPRNT.