C099-F9P - User guide
UBX-18063024 - R12
Wireless communication
Page 25 of 40
C1-Public
load from ZED-F9P to 17 kB/sec. The following examples approximate the output load of the default
configuration of ZED-F9P firmware:
•
1 Hz navigation rate: NMEA, UBX-NAV-RELPOSNED, UBX-NAV-PVT enabled < 2.4 kB/sec
•
5 Hz navigation rate: NMEA, UBX-NAV-RELPOSNED, UBX-RXM-RTCM enabled < 17 kB/sec
•
10 Hz navigation rate: NMEA, UBX-RXM-RTCM enabled < 14 kB/sec
The ODIN-W2 outputs an error message upon too high I2C bus load. In such situations some
messages may get dropped. To avoid that, the user is recommended to adjust the enabled messages
on the ZED-F9P I2C interface.
6.5.2
Link loss
6.5.2.1
Bluetooth Classic
During a Bluetooth transmission failure (red LED blinking), check the system for typical root causes:
•
Bluetooth SPP COM port on the host device stalled or disconnected.
•
Insufficient signal quality between the host device and C099-F9P.
Recover the system by re-starting the ODIN-W2. Reset can be done by pressing down the reset
button.
If ZED-F9P is configured through a Bluetooth link, e.g. using UBX-CFG messages, it is recommended
to apply all configurations manually at u-center. Uploading a large configuration file may fail due to
the limited link bandwidth.
6.5.2.2
Wi-Fi 2.4 GHz
A Wi-Fi disconnection is reported by a CLI message from ODIN-W2 UART1 interface and the LED
indication (yellow LED). If the disconnection is not intended, check the Wi-Fi interface at the host PC.
Wi-Fi channel congestion can be avoided by changing the Wi-Fi AP channel on C099-F9P. Typically,
channel congestion is experienced when the Wi-Fi connection indicators (e.g. LEDs) are OK but no
data is received. Use the following commands to set and read the current channel stored in the ODIN-
W2 RAM:
1.
/wifi_setch/run <integer number 1-11>
2.
/wifi_getch/run
Then, continue with the Wi-Fi connectivity settings, refer to section 6.3 Wi-Fi connectivity. Ensure the
C099-F9P is rebooted to apply the new channel.
6.5.3
Windows OS issues with Bluetooth SPP
There are some known issues with the Windows Bluetooth serial port profile (SPP) implementation
for Windows 7-10. The symptoms include the Bluetooth Virtual COM port not installing or
applications not connecting to the Bluetooth virtual COM port. In other
cases Windows might crash or become un-responsive. This is not related
to the ODIN-W2 Bluetooth implementation that uses the Bluetooth
standard SPP.
A known industry fix is to not use the Windows Bluetooth stack and PC
Bluetooth hardware. This is done by using a USB Bluetooth adapter that
uses its own Bluetooth stack. A device that is known to work is the ASUS
USB-BT400 (USB 2.0)
.
Once installed, use the Bluetooth virtual COM port
assigned to this device and not the built-in Bluetooth interface.
Figure 27: ASUS USB-BT400
Содержание C099-F9P-0-03
Страница 34: ...C099 F9P User guide UBX 18063024 R12 Appendix Page 34 of 40...
Страница 35: ...C099 F9P User guide UBX 18063024 R12 Appendix Page 35 of 40...
Страница 36: ...C099 F9P User guide UBX 18063024 R12 Appendix Page 36 of 40 RED...
Страница 37: ...C099 F9P User guide UBX 18063024 R12 Appendix Page 37 of 40...
Страница 38: ...C099 F9P User guide UBX 18063024 R12 Appendix Page 38 of 40...
