Hello world.c On Zedboard

Hello,

I have recently started working on the ZYNQ platform. I tried compiling and executing the Hello World application for linux that comes along with the Zedboard.

In the SDK, I have created a new application project, with Linux as the OS platform, and PS7_cortexa9 as the processor.

I selected the Hello world project and built it. The .elf file was generated in the debug folder.

I transferred the file to the SD card using an FTP tool. I do not know exactly which folder is of the SD card (I cannot put the SD Card in my computer, company policies :)). But I tried putting the .elf files into various folders.

When I tried running it from the TeraTerm command prompt, I either get a message saying "Permission denied" or "File not found".

I do not know what I am missing.

When I write the ls command, I can see my .elf file present in the file system.

Please let me know what I am missing?

Best Regards,

Makarand Deshmukh

0 zedhed over 6 years ago

Hi Makarand,

It sounds like this is a simple permissions issue with the .elf file on the SD card.

I think by default, any file written to the SD card (especially if it is FAT32 format) is by default set without the executable permission set on it.

You can change the permissions to executable for all users with the following command:

chmod ugo+x hello_world.elf

After that, you should be able to execute the application on your system. If you are interested in learning more about Linux file permissions, there are several good resources available to you like this one:

https://www.linux.com/learn/understanding-linux-file-permissions

Regards,

-Kevin
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