Debugging applications with a standard output

21 Feb 2016

Hello mbed.org users,

I wanted to share with you the app I created. It facilitates debugging applications and systems via a standard output. I guess this is very often the case among mbed.org users.

Anyway check it out yourselves: http://vcdmaker.org

The demo I created using the KL46Z-FRDM platform is also available. Search for vcdMaker_Demo (https://developer.mbed.org/users/ketjow/code/vcdMaker_Demo/).

Hopefully, you’ll find it useful.

Best regards, /Wojtek

05 Mar 2016

I just created another sample using STM DISCO L476 platform.

https://developer.mbed.org/users/ketjow/code/vcdMaker_Demo_DISCO_L476/

Best regards, /Wojtek

06 Mar 2016

@ketjow Thanks for sharing. I have to run this demo, to see what it does and what app enables. I could not find much info on the website. Is it just available for windows? Other platforms in the roadmap? Does it only support serial communication - attaches to serial COM port to read the values?

I have worked with Freemaster (Freescale closed source library), which does similar things. It is easy to set up, various interfaces are supported (jlink, cmsis-dap, uart, etc) . I have been looking for open source library like this, which can watch/draw variables, either by reading them from memory, or receiving them via some communication channel.

06 Mar 2016

Yes, it is just for Windows at the moment. A Linux version is also planned.

It isn't a live debugging tool like Freemaster or ucProbe. The tool is to transform text log files (taken e.g. via UART, saved in a file or captured over Ethernet) into the VCD format files. Then, it is possible to present the log as a waveform using any VCD viewer you like. There are commercial and free tools available. The free tool I was using during the demo is called GtkWave and it is good enough.

19 Dec 2016

The new vcdMaker release v2.0 is available. There are also Linux installation packages available. Additionally, the new release allows for merging logs from different sources.

Visit www.vcdmaker.org to download the latest manual and the application.

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