Understanding GNSS Sample Application Open Error

Follow the Presense SDK tutorial
I made it by configuring it with a predefined configuration, but
The open function was returned with an error and the positioning could not be reached.

I think I overlooked the simple configuration, but
I'm at a standstill, so let me ask you a question.

Error Message When Executing the gnss Command

 open error: -1

The commands used for build are as follows:

cdspresense/sdk
tools /config.py --kernel release
tools /config.py examples /gnss
make buildkernel
make

The write of nuttx.spk appears to be successful.

Sorry for the rudimentary question, but please let me know.

spresense

2022-09-30 19:38

2 Answers

I'm afraid I'm a little wrong, but
The boot loader may not be installed properly.

Whether or not the latest version of the SDK has been installed. Please check.
I think you can install it again.

2022-09-30 19:38

I am in charge of SPRESENSE support for Sony.

Regarding the error you inquired about when running the gnss sample application,
This could be because the GNSS firmware is not properly installed on the Spresense board.
GNSS firmware needs to be updated to match the version of the Spresense SDK.
If you don't update it, it won't work.

Use the instructions on the page below to try installing the firmware.
https://developer.sony.com/ja/develop/spresense/developer-tools/get-started-using-nuttx/set-up-the-nuttx-environment#spresense%E3%83%A1%E3%82%A4%E3%E3%83%B3%E3%E3%E3%83%E3%E3%E3%E3%83%E3%E8%E8%E8%E3%83%E3%E3%E8%E3%E8%E3%E8%E3%E8%E3%E3%E3%E8%E8%E8%E8%E3%E8%E3%E3%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E%E>

Thank you for your continued support at SPRESENSE.

SPRESENSE Support Team

2022-09-30 19:38

If you have any answers or tips

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