EVK-M10QSAM - User guide
Figure 16: EVK-M10QSAM communication ports in Linux environment
EVK-M10QSAM does not work properly when connected to a GNSS simulator
When using EVK-M10QSAM together with a GNSS simulator, please pay attention to proper
handling of the EVK. A GNSS receiver is designed for real-life use (i.e. time is always moving forward).
When using a GNSS simulator scenarios, the scenario time can be in the past resulting in the
receiver to jump backwards in time. This can have serious side effects on the performance of GNSS
receivers.
The solution is to configure the GPS week rollover value to a week number preceding the date in
GNSS simulator scenario. For example, setting the GPS week number to 1200 (corresponding to Jan
2003) allows running simulator scenarios taking place after this date. Please refer to
for
how to set the GPS week number with u-center 2 GNSS evaluation tool. In addition, always issue a
cold start command before every simulator test to avoid receiver confusion due to the time jumps.
Figure 17: Setting GPS week number with u-center 2 GNSS evaluation tool
UBX-22026860 - R01
10 Troubleshooting
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