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Quick GUI for MBED projects, part 2

The previous post I explained the code for the dear ImGui part of the GUI. In this part the code for the serial connection will be discussed.

This code is made up of 2 parts, the MBED code and the PC side code. The MBED code will be discussed first. The MBED code uses the excellent MODSERIAL library. The MBED code after stripping away the initialization and such looks like this:

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Tinycortex, part 3. Offline compiling

The MBED IDE is an online IDE, which is less pleasant if you want to work without internet or prefer your own editor. Luckily it is possible to export an MBED project and use an offline compiler. It can export to KEIL, GCC and a few others.

KEIL is a well known IDE now owned by ARM. They offer a free 32KB limited version and with the Tinycortex having 32KB of flash memory that limit is no issue. KEIL is Windows only and the unlimited version is quite expensive. A guide on exporting to KEIL can be found here. Because KEIL just works it’s the recommended way for offline compiling.

It is also possible to export to a GCC makefile which is especially nice for people using Linux or OS X.  An ARM compiler is required, the most used and free one being GCC ARM Embedded, which is being maintained by ARM employees. On a Linux system with make and the ARM compiler installed compiling the code is just typing “make” in the terminal. After a few seconds the output for the Blinkaled project you can find on my github is:
Selection_020

Sadly enough it’s not possible to just copy the generated .bin file on the tinycortex. With just the makefile the binary file isn’t checksummed. A small script in the “Tools” folder called checksum is used to checksum the file. Place it in the folder with the binary and run it with the command “./checksum filename.bin”. The checksum script is compiled for Linux, OS-X or Windows users need to recompile it using the command “gcc -o checksum checksum.c”.

Linux and OS-X users have to use the dd command to place the binary on the Tinycortex.


The first post :)

Look at this, my first post on my first blog, who knew. Something about myself, I am a 20 year old student from the Netherlands studying Embedded System Engineering. I also started my own company with 2 other students called BRC-Electronics which you can read more about on www.brc-electronics.nl.

I will try and use this blog to post about my electronics experiments and thoughts as a form of reference for myself and for others.

 


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