Where is the red pitaya directory ?

[gregoire_thomas]

Hi,

I have followed the instructions given here about "Compiling and running on target" :
http://redpitaya.com/examples-new/

Now i'm able to run the example programs of the Red Pitaya library.
But I can't find the red pitaya directory. Where is it installed ?
I would like to add my own programs in it, in order to compile and run them with :

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make my_program
LD_LIBRARY_PATH=/opt/redpitaya/lib ./my_program

Any ideas ?
Thanks

[Nils Roos]

If you followed the instructions, the cloned repository is in /root/RedPitaya/

You have (at least) two options to compile your code:

- you put your sourcecode where the Makefile is ("Examples/C/" in the cloned repository) and do "make my_program" in this directory

- you can compile your program anywhere with

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gcc -g -std=gnu99 -Wall -Werror -I/root/RedPitaya/api/include/ -L/root/RedPitaya/api/lib/ -lm -lpthread -lrp -o my_program my_program.c

[gregoire_thomas]

I forgot to mention that I program in C language ,in Visual Programming, and with a Windows OS.
So I execute the linux commands in the Visual Programming shell.

Maybe that's why the second option that you propose doesn't work.
I get this error : my_program.c : No such file or directory

For the first option is it possible to put my sourcecode I wrote in Visual Programming to the cloned repository ?
I tried this :

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cp my_program.c  RedPitaya/Examples/C/my_program.c

But i get the same error : cp: cannot stat 'my_program.c' : No such file or directory

[Nils Roos]

I have no idea how the Visual Programming shell works, so I can't really provide explicit instructions.

It seems to me you should first copy your sourcefile to the desired place in the Red Pitaya's filesystem (eg. with WinSCP).

[gregoire_thomas]

Hi,

I'm now working with ubuntu.

I have compiled my code with :

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gcc -g -std=gnu99 -Wall -Werror -I/root/RedPitaya/api/include/ -L/root/RedPitaya/api/lib/ -lm -lpthread -lrp -o my_program my_program.c

but redpitaya/rp.h is not found.

So I'm trying to follow the instructions that you gave on this topic :
viewtopic.php?f=8&t=1411

but I can't build the RP API because :

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cd /root/RedPitaya/

give me a "permission denied" error.
I tried :

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sudo -i
cd RedPitaya

But there is no such file or directory.

Any ideas please ?

[Nils Roos]

Maybe it is not so clear in the posts, but these instruction are for compiling on the Red Pitaya in a remote shell, not on your host system.

A more complete list of steps is:

1. make sure your Red Pitaya can connect to the internet
2. login to your Red Pitaya with ssh (linux) or PuTTY (Windows)
3. after login with user root, you are in the /root/ directory
4. clone the Red Pitaya repository with

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   git clone https://github.com/RedPitaya/RedPitaya.git

   this will create the RedPitaya/ directory and load all the sources into it

5. Code: Select all

   cd RedPitaya

6. Code: Select all

   make api

7. now your Red Pitaya is prepared to compile your own program with the gcc... command

[gregoire_thomas]

Thanks that's why I didn't understand !

The last problem is when I use gcc to compile, my code is not found (because it is located on the host system in /home/myname/Documents).
So when I do :

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cd /home/myname/Documents

There is no such file or directory.
Even the gcc command to compile anywhere doesn't work and tells me there's no such file or directory.

How do I copy my code from /home/myname/Documents to /root/RedPitaya/Examples/C ?
I successfully did it but not with the terminal. Now when i do the "ls" command all the examples programs appear but not mine.

[Nils Roos]

I should have qualified 'anywhere' a little more carefully
It's supposed to mean "anywhere on your Red Pitaya's local filesystem."

You can copy files from your system to the Red Pitaya's Examples/C/ folder with

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scp /home/myname/Documents/myfile root@<RedPitaya IP>:/root/RedPitaya/Examples/C/

[gregoire_thomas]

Thank you so much, it works now !