mikroe_gps_lea6s

LEA-6S - GPS Click (Mikroe)

Summary

This project shows the implementation of a GPS Click driver using LEA-6S from Mikroe Integrated with BGM220P Explorer Kit based on UART communication. GPS click is a compact solution for adding GPS functionality to your device. It carries the u-blox LEA-6S high-performance position engine. The click is designed to run on a 3.3V power supply and communicates with the target MCU through UART. GPS click can simultaneously track up to 16 satellites while searching for new ones. The LEA-6S module’s TTFF (time to first fix) is less than one second — this is the measure of time necessary for a GPS receiver to get satellite signals and navigation data, and based on this information, calculate a position (a fix).

Required Hardware

• BGM220-EK4314A BGM220 Bluetooth Module Explorer Kit (BRD4314A BGM220 Explorer Kit Board)

• Or SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit (BRD4002 + BRD4338A)

• GPS Click board based on LEA-6S from Mikroe Integrated

• Option: GPS/GNSS Magnetic Mount Antenna

Hardware Connection

• If the BGM220 Explorer Kit is used:

  The GPS Click board supports MikroBus, so it can connect easily to the Explorer Kit via MikroBus header. Assure that the 45-degree corner of Click board matches the 45-degree white line of the Explorer Kit. The GPS antenna needs to be connected to the GPS click board to ensure that the satellite signals can be received.

  

• If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

  Description	BRD4338A GPIO	BRD4002 Breakout Pad	GPS click
  UART1_RX_PIN	GPIO_6	P19	TX
  UART1_TX_PIN	GPIO_7	P20	RX
  RESET	GPIO_46	P24	RST
  Time Pulse	GPIO_47	P26	TP

Setup

You can either create a project based on an example project or start with an empty example project.

Create a project based on an example project

1. From the Launcher Home, add your board to My Products, click on it, and click on the EXAMPLE PROJECTS & DEMOS tab. Find the example project filtering by gps.

2. Click Create button on the Third Party Hardware Drivers - LEA-6S - GPS Click (Mikroe) example. Example project creation dialog pops up -> click Create and Finish and Project should be generated.

   

3. Build and flash this example to the board.

Start with an empty example project

1. Create an "Empty C Project" for your board using Simplicity Studio v5. Use the default project settings.

2. Copy the file app/example/mikroe_gpsclick_lea6s/app.c into the project root folder (overwriting the existing file).

3. Install the software components:

   • Open the .slcp file in the project.

   • Select the SOFTWARE COMPONENTS tab.

   • Install the following components:

     If the BGM220 Explorer Kit is used:

     • [Services] → [Timers] → [Sleep Timer]
     • [Services] → [IO Stream] → [IO Stream: EUSART] → default instance name: vcom
     • [Services] → [IO Stream] → [IO Stream: USART] → default instance name: mikroe
     • [Application] → [Utility] → [Log]
     • [Application] → [Utility] → [Application Queue]
     • [Third Party Hardware Drivers] → [Sensors] → [LEA-6S - GPS Click (Mikroe)]

     If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

     • [WiSeConnect 3 SDK] → [Device] → [Si91x] → [MCU] → [Service] → [Sleep Timer for Si91x]
     • [Third Party Hardware Drivers] → [Sensors] → [LEA-6S - GPS Click (Mikroe)] → use default configuration
     • [WiSeConnect 3 SDK] → [Device] → [Si91x] → [MCU] → [Peripheral] → [UART] → disable "UART1 DMA"

4. Install printf float

   • Open Properties of the project.
   • Select C/C++ Build > Settings > Tool Settings >GNU ARM C Linker > General. Check Printf float.

5. Build and flash this example to the board.

Note:

• Make sure that the Third Party Hardware Drivers extension is installed. If not, follow this documentation.

• SDK Extension must be enabled for the project to install "LEA-6S - GPS Click (Mikroe)" component.

How It Works

This example reads and processes data from GPS clicks. You can launch Console that's integrated into Simplicity Studio or use a third-party terminal tool like TeraTerm to receive the data from the USB. A screenshot of the console output is shown in the figure below.

Report Bugs & Get Support

To report bugs in the Application Examples projects, please create a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo. Please reference the board, project, and source files associated with the bug, and reference line numbers. If you are proposing a fix, also include information on the proposed fix. Since these examples are provided as-is, there is no guarantee that these examples will be updated to fix these issues.

Questions and comments related to these examples should be made by creating a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo.