USGlobalSat GPS Forums

Please login or register.

Login with username, password and session length
Advanced search  

News:

Pages: [1]   Go Down

Author Topic: SD-502 F.A.Q.'s  (Read 1257 times)

emadrid

  • Administrator
  • Jr. Member
  • *****
  • Karma: 0
  • Offline Offline
  • Posts: 59
SD-502 F.A.Q.'s
« on: April 01, 2011, 05:55:21 pm »

SD502 Secure Digital GPS FAQ

1.) Q: Could not open com port to allow Navigation software to receive satellite data. What can I do?
1.) A:Attempt resetting your device. If this fails, reload the navigation application.

2.) Q: Cannot recognize card, what can I do to correct this problem?
2.) A: Be certain the GPS receiver is securely seated in your PDA’s SD expansion port.

3.) Q: Why is my SD GPS receiver not recognized under my card reader?
3.) A: SD GPS is only design to operate in Pocket PC platforms.

4.) Q: Why is my SD GPS not recognized in my laptop’s expansion port?
4.) A: SD GPS is only design to operate in Pocket PC platforms.

5.) Q: Is my PDA model compatible with the SD502 GPS receiver?
5.) A: SD-502 GPS receiver is only compatible with the listed devices on our website. These listed models have been rigorously evaluated, meeting all performance parameters. Unfortunately, we do not offer any guarantees for models outside this list.

6.) Q: Having trouble with ipaq 5550 and the SD-502. What's needed for communication?
6.) A: The 5550 has to be soft reset after inserting the sd-502 card ...... then the card is visible both as memory expansion and as a GPS device on port 4...... and now its all working… i've just loaded some flash movies i've been working on, they pull down the GPS data, and will be used for a sonic art work based on a walk in the countryside...  i  can see the longitude and latitude figures shifting as different satelllites come into view and accuracy improves.

7.) Q: I have problems using the SD502 with my iPaq H5555… Can anyone assists me?
7.) A: You may require to perform multiple soft resets during installation to make the device function.

8.) Q: What is Bsquare SDIO Now!?
8.) A: Bsquare's SDIO Now! program helps manufacturers of chipsets, portable devices, card host controllers, and peripherals support the popular Secure Digital (SD) and Secure Digital Input Output (SDIO) standards on devices based on Microsoft's Windows Mobile and Windows Embedded operating systems. A common development platform with a standard driver architecture and APIs eliminates the need for vendors to write individual drivers for each device, ensuring compatibility with various devices regardless of choice of SD host controller or platform architecture.

9.) Q: What platforms support Bsquare SDIO Now!?
9.) A: Only Wince Device(PDA) with SDIO port and adopt the Bsquare SDIO NOW! would be compatible. SD-502 DOES NOT SUPPORT: PalmOS, Mac 8/9/OSX, or Windows 95/NT/98/ME/2000/XP.

10.) Q: How do I update my device driver?
10.) A: Install "cabinstl" software (it extract and installs ".cab" files on PDA) on your PDA. Download at: http://www.freewareppc.com/utilities/cabinstl.shtml
Place the downloaded ".cab" file (the driver from Globalsat) into "My Device" folder on PDA. Run "cabinstl", select the location of the Globalsat driver and install it at default location.

11.) Q: What is needed to make my Treo 700w see the SD502 receiver?
11.) A: The Treo 700w functions well with the SD-502 as long as your Bluetooth feature is disable.

Here is what has been discovered:
In order to get them to work together, you are required to perform specific tasks in specific order. If you fail to execute these steps in the exact order, nothing will work.

Product - Release Levels - and the steps are listed below.

Products:
SD-502 Globalsat GPS Receiver

Step 1.
Download the latest drivers here
Install this driver first and perform a reset on the treo 700.

Step2.
Download the latest Version of GPSInfo here

Step3.
Turn off Bluetooth on the Treo 700w and perform a reset.

Step4.
Click on Start, Programs and run the GPS Info Program.
Choose the COMM Port labeled "COMx: GPSUART" and click Start.
Then screen should start scrolling with information from the gps.
Click the "GPS Info" tab at the bottom of the screen and you should see the date, time, lat., long., and other info from the GPS. If there is no data, good luck. Make sure no other apps are running. You can do this by holding down the "OK" button for a few seconds. The running programs screen will pop up. Stop all programs and try again.
There is no need to go any further until you have this working.
Once it is working, make note of the comm port and continue...

Step5.
On the Treo 700w, Click Start, Settings. Choose the system tab on the bottom of the screen. Click on GPS. Choose the "Programs" tab at the bottom of the screen, select COM0 for GPS program port. Choose the next tab labeled "Hardware", select the comm port from the previous step for the GPS hardware port, Choose 4800 for baud rate. Choose the next tab labeled "Access", Check the box "Manage GPS automatically(recommended)". Click OK.

Step6.
Click on settings and then GPS Communications and select COMM0. From this point, everything should function properly. It appears Bluetooth is the main problem.

12.) Q: What is needed to make my Treo 700w see the SD502 receiver using Mapopolis Navigator 4.7?
12.) A: The Treo 700w functions well with the SD-502 as long as your Bluetooth feature is disable.

Here is what has been discovered:
In order to get them to work together, you are required to perform specific tasks in specific order. If you fail to execute these steps in the exact order, nothing will work.

Product - Release Levels - and the steps are listed below.

Products:
SD-502 Globalsat GPS Receiver
Navigation Software:
Mapopolis Navigator 4.7 for Pocket PC
Purchase Map Pack for Pocket PC

Step 1.
Download the latest drivers here
Install this driver first and perform a reset on the treo 700.

Step2.
Download the latest Version of GPSInfo here

Step3.
Turn off Bluetooth on the Treo 700w and perform a reset.

Step4.
Click on Start, Programs and run the GPS Info Program.
Choose the COMM Port labeled "COMx: GPSUART" and click Start.
Then screen should start scrolling with information from the gps.
Click the "GPS Info" tab at the bottom of the screen and you should see the date, time, lat., long., and other info from the GPS. If there is no data, good luck. Make sure no other apps are running. You can do this by holding down the "OK" button for a few seconds. The running programs screen will pop up. Stop all programs and try again.
There is no need to go any further until you have this working.
Once it is working, make note of the comm port and continue...

Step5.
On the Treo 700w, Click Start, Settings. Choose the system tab on the bottom of the screen. Click on GPS. Choose the "Programs" tab at the bottom of the screen, select COM0 for GPS program port. Choose the next tab labeled "Hardware", select the comm port from the previous step for the GPS hardware port, Choose 4800 for baud rate. Choose the next tab labeled "Access", Check the box "Manage GPS automatically(recommended)". Click OK.

Step6.
Follow Installation Instructions for Mapopolis Software Pocket PC setup.
Note: Do not install mapopolis viewer on the SD-502. Install your map packs on the SD card.
Click on settings and then GPS Communications and select COMM0.
Everything worked fine for me from this point on.
It appears Bluetooth was the main problem.

13.) Q: Is this device WAAS enable?
13.) A: Yes, this device is WAAS enabled by default, that are sold by USGlobalSat, Inc and its Authorized Dealers            . Note, receivers with firmware 3.1.1 and above are WAAS enable out of the box.

14.) Q: What datum is used?
14.) A: WGS 84

15.) Q: Is this device waterproof?   
15.) A: No…     

16.) Q: What's the refresh rate?   
16.) A: GGA(1sec), GSA(5sec), GSV(5sec), RMC(1sec),VTG(1sec)       

17.) Q: What is the output format for this receiver?         
17.) A: Output format: GGA(1sec), GSA(5sec), GSV(5sec), RMC(1sec),VTG(1sec)       

18.) Q: How many satellites are needed for 3-D positioning?   
18.) A: A minimum of 4 satellites (3 for 2-D no altitude)         

19.) Q: Can I reconfigure receiver? If so, what program?           
19.) A: Unfortunately, you cannot reconfigure GPS receiver.

20.) Q: Can I reconfigure receiver's Baud-Rate? If so, what program?       
20.) A: Unfortunately, you cannot reconfigure GPS receiver.

21.) Q: Can I reconfigure receiver's NMEA data? If so, what program?       
21.) A: Unfortunately, you cannot reconfigure GPS receiver.

22.) Q: What platforms are supported?     
22.) A: Pocket PC 2002/2003, Win CE, Win CE.Net, WM2003, Selected Windows Mobile 5 devices.

23.) Q: What is the Green LED indicator represent?     
23.) A: Satellite status. Green LED Flashing=GPS position is fixed. Green LED Steady= No GPS position is fixed and searching.       

24.) Q: What's the unit's Baud Rate settings?
24.) A: 4800 bps…

25.) Q: What are differences between drivers 1.32 and 1.33?
25.) A: The difference is that Version 1.33 driver adds supporting WinCE 4.2x and 5.0x

26.) Q: What is the current SD-502 firmware version?         
26.) A: Firmware version 3.1.1 is the current SD-502 firmware version.         

27.) Q: What is the power consumption for this device?
27.) A: The Power Consumption Rate of SD-502: - Working: 110 mA ~ 120 mA  - Standby:  130 mA ~ 140 mA

28.) Q: Will my receiver support older NMEA standards?     
28.) A: Yes, NMEA 2.0 is backwards compatible with older versions of the protocol.

29.) Q: Why is my GEOID and mean sea level is missing which affects the altitude calculations?   
29.) A: Yes, the GEOID correction was missing until it was added in version 3.1 of the firmware from my observations of the Holux 236 that uses it.

30.) Q: How does the "20 channel" affect performance?
30.) A: The sensitivity numbers like the TTFF numbers don't really mean much, as they're hard to tie into real life observations. 

31.) Q: How much more is the SiRF Star III power consumption compare to SiRF Star IIe/LP?
31.) A: About 15% more power hungry than the previous SiRF Star IIe/LP.     

32.) Q: Is SiRF Star III quicker in signal acquisition?   
32.) A: Yes, SiRFStarIII can acquire much faster than IIe/XT2 in difficult environments thanks to the added correlating power and that is not reflected in the dB number.   

33.) Q: How much accuracy is comprised without utilizing WAAS?         
33.) A: Since Selective Availability (SA) was removed in May 2000, the residual GPS error of approximately 10 meters is mostly due to GPS signal deflection that the SBAS system can only marginally correct (I have never been able to measure any improvement from EGNOS but others have seen 1/2 meters with WAAS). On the other hand SBAS is crucial for critical use such as flying a plane as it allows for near real time GPS signal integrity checking.       

34.) Q: What is the biggest benefit of the SiRF Star III chipset?         
34.) A: Correlation power, the action of analyzing the signal received from the satellites and making sense out of it to compute a position. Sounds simple enough, but the signals are very weak (sent from 20,000 kms above our heads) and generally very degraded by our immediate environment, so the more correlation power you have the better your chances are of getting a "fix". In addition, TTFF is less dependent on the environment and once you get a lock you rarely lose it, even indoors. With SiRFIII, GPS requires less "work", for instance, you no longer need to choose between waiting 2 minutes when you leave a parking garage in the morning to get a fix or risk driving around for 10 minutes without one, now you'll generally get a fix in 45 seconds in both situations .         

35.) Q: What is the meaning of "baud rate"?   
35.) A: Baud rate is really the rate of bit transitions on the serial data link. Since each byte of data adds a start and stop bit, it is 10 bits long, and 38400 baud is 3840 bytes per second. Faster bit rates transfer more bytes per second, i.e., greater bandwidth.     

36.) Q:What to look for first to know which SiRF firmware version is oldest/newest?
36.) A: Here's a little insight into SiRF version numbers: 2.3.2-GSW2-2.05.024-C1PROD1.0_6A -- the GSW2 means standard SiRFstarII software, and 2.3.2 is the release version number. The 2.05.024 or similar numbers are internal numbers into the engineering data base. C1 is the build variant, a number that varies with each software type, but can relate to flash builds vs. RAM (debug) builds, builds with or without SBAS support (WAAS), builds with one or two serial port support, NMEA or binary protocol default, etc. Prod means this is a released rather than a beta (test) version. 1.00 means the release is without any post-release bug fixes. If there is a letter or letters after the Prod1.00, like Prod1.02b, this would mean that some specific "patches" have been added to provide interim fixes for known bugs. After that, anything on the line is likely added by the manufacturer for internal version control. A number like 2.4.12.07-XMitac2.0-C1BETA1.1 0000003729 with XMitac2.0 means this is XTrac 2.0 customized by SiRF for Mitac. In general, an X in the number will imply XTrac software, while GSW2 or GSW3 will indicate standard code for SiRFstarII or SiRFstarIII, respectively. 

37.) Q: Can we upgrade our SiRF firmware? What' s needed for the process?         
37.) A: SiRF provides the new versions to our direct customers, but it is up to them to determine if they want to provide an update mechanism to their end-user customers. While the process is relatively simple, unless there is a hardware way to put the receiver into flash upgrade mode (internal boot mode is our term) there is a chance to get things stuck so you have to send it back to the manufacturer or a repair depot to recover. Further, you must be supplied with a flash programming utility to do the job since you cannot access the flash directly -- you have to go through the ARM processor on the SiRF chipset."

38.) Q: What is static navigation?     
38.) A: Static navigation when enable, velocities lower than 1.2 m/s for 3 seconds we will freeze the position, and leave them frozen until velocity exceeds 1.4 m/s. Static navigation is a mode designed for motor vehicles, which causes the position to become pinned at one location when velocity is determined to be low enough. This is designed to make navigation systems operate more reasonably when the GPS Selective Availability (SA) signal degradation is turned on.       

39.) Q: Why does my receiver fail to acquire satellite information after in use from a flight? 
39.) A: Under GPSInfo, perform a cold start. In result, the SD-502 will reset its registers for terrestrial coordinate calculation.     

40.) Q: What are the differences from SiRF Binary Protocol for SSII SSIII manuals?       
40.) A: Key differences between SS2 and SS3 binary is that SS3 no longer uses as many debug messages (Message ID 255), and instead uses a newer message 225. That message has sub-message IDs, most of which are not defined outside our Engineering department. Sub-ID 6, however, is the TTFF message, which may be of interest. Message 225 is turned on and off just like message 255: use the debug/development message flag in the reset configuration byte of the reset message (message 128).

41.) Q: How important is having WAAS enabled on your GPS receiver?         
41.) A: SiRFstartIII currently does not have WAAS enabled, not that this matters unless you intend on relying on it to operate a plane.

42.) Q: What satellite identification number is used for WAAS and EGNOS?
42.) A: Satellite #33 (AoRE) is for EGNOS, Satellite #35 (AoRW) is for WAAS, and it has been suggested that Satellite #41 (PoR) will be used to indicate that data is being received from the Japanese MSAS system.

43.) Q: What is trickle mode? 
43.) A: The Trickle mode allows for an increase in battery life by putting the GPS module in sleep mode for very short periods of time, such as 300ms per 1s cycle, which will result in a battery life increase of about 40% according to my testing. It can be useful for certain types of applications but there is a hit on performance as the receiver will have to get "back on its feet" when it wakes up. It is especially problematic in difficult reception conditions. Starting with FW 2.3, SiRF has added the "Adaptive Trickle" mode, which as its name implies will adapt the power savings to the conditions of reception. In optimal conditions, I found that the battery life increase amounts to about 30%.     

44.) Q: Lately it takes too long to lock the satellites. Sometimes it took as long as 7-9 minutes (solid green LED). Environment: highway, no high trees and buildings. What can I do to correct this?
44.) A: Perform a device reset.

45.) Q: The battery light didn't turn green while the unit is inserted in expansion port. What can I do to correct this problem?
45.) A: Be certain the unit is inserted properly in expansion port. If needed, attempt inserting device multiple times.

46.) Q: How do I connect and use a SD GPS device Pocket PC?   
46.) A: In order to set up a SD Connection with a GPS receiver, please see user manual for instructions.

47.) Q: How do I connect and use a SD GPS device WinMobile5?
47.) A: Setup is similar to the above question. See user manual for instructions.   

48.) Q: Can I alter the GPS datum?
48.) A: Unfortunately, you cannot alter the GPS datum.
Logged
Pages: [1]   Go Up
 

Page created in 0.213 seconds with 21 queries.