© Semtech 2005

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23

RGPSM202

SlimGPS™ Receiver

6

DEFAULT SETTINGS

A number of system settings are stored in a particular area of the embedded Flash. These are the default parameters

whose contents are given in the table below. Some of these settings can be modified by sending a proprietary NMEA

sentence to the receiver, as defined above.

#

Default parameter

Data Type

Default value

Range values

1

PPS Output Enabled

Char

Y

Y / N

2

NMEA refresh rate

Integer

1 second

1 to 99 seconds

3

NMEA GGA output displ’d

Char

Y

Y / N

4

NMEA GLL output displ’d

Char

N

Y / N

5

NMEA VTG output displ’d

Char

N

Y / N

6

NMEA GSV output displ’d

Char

Y

Y / N

7

NMEA GSA output displ’d

Char

Y

Y / N

8

NMEA ZDA output displ’d

Char

N

Y / N

9

NMEA RMC output displ’d

Char

Y

Y / N

10 NMEA TF output displ’d

Char

N

Y / N

11 NMEA GGA display order

Integer

2

1 .. 8

12 NMEA GLL display order

Integer

5

1 .. 8

13 NMEA VTG display order

Integer

6

1 .. 8

14 NMEA GSV display order

Integer

4

1 .. 8

15 NMEA GSA display order

Integer

1

1 .. 8

16 NMEA ZDA display order

Integer

7

1 .. 8

17 NMEA RMC display order

Integer

3

1 .. 8

18 NMEA TF display order

Integer

8

1 .. 8

19 Serial Port A Baudrate

Integer

9600

2400 / 4800 / 9600 / 19200 / 38400 / 57600

20 Serial Port A Data bits

Integer

8

7 .. 8

21 Serial Port A Stop bits

Integer

1

1 .. 2

22 Serial Port A Parity bits

Character

N

N / O / E

23 Serial Port B Baudrate

Integer

9600

2400 / 4800 / 9600 / 19200 / 38400 / 57600

24 Serial Port B Data bits

Integer

8

7 .. 8

25 Serial Port B Stop bits

Integer

1

1 .. 2

26 Serial Port B Parity bits

Character

N

N / O / E

27 Dynamic Code

Integer

5

1 – Land

2 – Sea

3 – Air

4 – Stationary

5 - Automobile

28 Max Oscillator Offset

Real

7.9e-6

Depends on the Oscillator

29 Elevation Mask (radian)

Real

0.087

0 to Pi/2 radian

30 Signal Level Mask (AMU)

Real

1.3

1 to 20

31 DOP Mask

Real

16

0.2 to 40

32 PDOP Switch

Real

8

0.2 to 40

33 Geodetic System Ellipsoid

Integer

20

0 to 20

34 Geodetic System Delta X

Real

0

-9999.99999 to +9999.99999

35 Geodetic System Delta Y

Real

0

-9999.99999 to +9999.99999

36 Geodetic System Delta Z

Real

0

-9999.99999 to +9999.99999

37

BBFLASH Update rate

(minutes)

32 bits Integer

10

1 to (2**32)-1

Table 28 – Default Parameters