Featured FreeRTOS+IO and FreeRTOS+CLI Demo
Using the LPCXpresso Base Board BSP

The FreeRTOS+IO zero copy transfer mode is used to transmit characters, and the interrupt driven character queue transfer mode is used to receive characters.

Six commands are registered with FreeRTOS+CLI. These are run-time-stats, task-stats, echo-parameters, echo-3-parameters, create-task and delete-task.

Enter "run-time-stats" in the command console to see the amount of time each task has spent in the Running state since it was created.

Enter "task-stats" in the command console to see a snapshot of task state information - including stack high water mark data.

Enter "echo-parameters" followed by one or more command line parameters to see the (variable) number of parameters echoed back. This command demonstrates defining and implementing commands that can take any number of parameters.

Enter "echo-3-parameters" followed by three command line parameters to see the (fixed) number of parameters echoed back. This command demonstrated defining and implementing commands that expect an exact number of parameters.

Enter "create-task" followed by a single numeric parameter to create a task that accepts the entered number as its task parameter. The task will print (to the command console) the parameter value when it starts executing. The "task-stats" command can be used to see the additional task running.

Enter "delete-task" to delete the task that was created using the "create-task" command.

As delivered, UART3 is set to 115200 baud, no start bits, 8 data bits and 1 stop bit. On the base board, UART3 is routed via a UART to USB converter, to the micro USB connector marked X3. The terminal program used to connect to the target must be configured to send line ends with line feeds. Release 1 of the featured demo required the terminal program to echo typed characters locally, release 2 does not.

The example demonstrates the I²C port being used in both the polled and interrupt driven zero copy transfer modes.

The example demonstrates the I²C port being used in the polled and interrupt driven zero copy transfer modes to write to the EEPROM, and the polled and interrupt driven circular buffer transfer modes to read back from the EEPROM.

The example demonstrates files being written to and read from the SD card using all the available FreeRTOS+IO transfer modes. The file name is used to indicate the mode being used when the file was created, and 20 files are created using each mode.

The files can be listed and manipulated using FreeRTOS+CLI - see below.

The command console uses the telnet port number, and can be accessed using a standard telnet client, but it is not a full telnet server.

The example uses a static IP address that is configured using the configIP_ADDR0-configIP_ADDR3 constants defined in FreeRTOSConfig.h.

Five commands are registered with FreeRTOS+CLI. These are dir, copy and del to manipulate the file system (see above), and run-time-stats and task-stats to view FreeRTOS task information.

Enter "dir" in the command console to see a file system directory listing.

Enter "del <filename>" in the command console to delete a file from the SD card.

Enter "copy <source_file> <destination_file>" in the command console to copy a file.

Enter "run-time-stats" in the command console to see the amount of time each task has spent in the Running state since it was created.

Enter "task-stats" in the command console to see a snapshot of task state information - including stack high water mark data.

The terminal program used to connect to the target must be configured to send line ends with line feeds and echo typed characters locally.