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The QSL includes a SimplePublish example for the STMicroelectronics NUCLEO-L053R8 development board. This is given as a project for the Eclipse/GCC based System Workbench for STM32, where STM32CubeMX has been used to generate the necessary Hardware Abstraction Layer (HAL) code.
The application behaves just like SimplePublish for the other platforms, and like the example for SAM C21; debug prints are re-targeted through a second serial port. A green LED on the Nucleo board is also toggled to indicate whether the mote has connected to a network or not.
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Prepare the NUCLEO-L053R8
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Connect to Mote
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The extension connectors of the NUCLEO-L053R8 is pictured in Figure 8, with the relevant pins marked. As you can see, there are both a set of Morpho and Arduino connectors. Connect the mote to the Nucleo board as per the mapping in Table 12, either through the CN7 and CN10 headers (Table 10 and Table 11) or the corresponding pins on the Arduino headers. Note that you can of course just connect the RX RTSn and TX CTSn to GND on the mote itself, as can be seen in the example in Figure 7.
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Figure 8: NUCLEO-L053R8 extension connectors.
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Connect ST-LINK to Computer
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Connect a USB cable from your computer to the USB-mini B port labeled CN1: This is the port at the top of the NUCLEO-L053R8 (visible on the right side of Figure 7), which connects the integrated ST-LINK/V2-1 debugger to your computer, and is used to power, program and debug the board.
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You can (de)activate debug and log messages with the NDEBUG and NLOG defines in dn_debug.h (located in sm_qsl/). |
Console Output Issue
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The output from the debug terminal has been shown to periodically stop working on Windows (although this does not affect execution of the application itself). Disconnecting and reconnecting the ST-LINK USB seem to make it work again (although this will of course reset both the Nucleo board and connected mote). If you still don't see any output when you should you can try the following:
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The System Workbench project expects to find the sm_clib and sm_qsl as they appear in the Directory Structure. If you chose the zip download or subversion checkout, the sm_clib/ directory from the separate unzipped folder/svn checkout need to be copied into the QSL repository to achieve the same structure. |
Build
Project > Build Project (or press the 
icon) to build the project.
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By default Eclipse will index unused headers, causing some errors that don't affect compilation. You can remove these by disabling the option in project properties: |
Build
Project > Build Project (or press the icon) to build the project.
Debug/Run
The first time you run the project, you have to select the correct debug configuration:
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