Overview
========
This example demonstrates usage of eRPC between PC and board using UART transport layer.
Board acts like a server and the PC as client. When client starts, it generates two random
matrixes and sends them to server. Server then performs matrix multiplication and sends
result data back to client. Result matrix is then printed on the PC side.

eRPC documentation
eRPC specific files are stored in: middleware\multicore\erpc
eRPC documentation is stored in: middleware\multicore\erpc\doc
eRPC is open-source project stored on github: https://github.com/EmbeddedRPC/erpc
eRPC documentation can be also found in: http://embeddedrpc.github.io

PC Side Setup (Python)
1. Make sure you have Python installed on your PC
2. Install serial module by executing following command in command line: "python -m pip install pyserial"
3. Install eRPC module to Python by executing setup.py located in: middleware\multicore\erpc\erpc_python - "python setup.py install"

Usage of run_uart.py
usage: run_uart.py [-h] [-c] [-s] [-p PORT] [-b BD]

eRPC Matrix Multiply example

optional arguments:
  -h, --help            show this help message and exit
  -c, --client          Run client
  -s, --server          Run server
  -p PORT, --port PORT  Serial port
  -b BD, --bd BD        Baud rate (default value is 115200)

Either server or client has to be selected to run

Example:
To run PC side as a client with a board connected as a server to COM3 execute:
"run_uart.py --client --port COM3"

Toolchain supported
===================
- IAR embedded Workbench  9.20.1
- MCUXpresso  11.4.1
- Keil MDK  5.34
- GCC ARM Embedded  10.2.1

Hardware requirements
=====================
- Mini/micro USB cable
- LPCXpresso55S36 board
- Personal Computer

Board settings
==============
No special settings are required.

Prepare the Demo
================
1.  Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) on the board
2.  Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
    - 115200 baud rate
    - 8 data bits
    - No parity
    - One stop bit
    - No flow control
3.  Download the program to the target board.
4.  Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

For detailed instructions, see the appropriate board User's Guide.

Running the demo
================
When the demo runs successfully, the log below shows the output of the Client eRPC Matrix Multiply demo
in the Python Shell window:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Matrix #1
  21   33   37   37    9
  23   45   43    0   32
  38   44    8   15   36
  18   18   38   44   16
  22   23    0   38    7

Matrix #2
  11   23   27   45   11
   7   19   23   24    6
  32   26   49   43   16
  22   48   36   34   41
  27   20   32   31   11

eRPC request is sent to the server

Result matrix
2703 4028 4759 4865 2637
2808 3142 4787 4956 1563
2284 3358 4122 4736 1821
2940 4176 4858 4868 2894
1428 2907 2715 3051 2015

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
