Redpitaya Forum

Posted: **Wed Jul 08, 2015 1:36 pm**

I wrote a basic hello world c program for the Red Pitaya - just as an initial proof it would work.

The program;


#include <stdio.h>

main()
{
    printf("hello red pitaya\r\n");
}

Can't be much wrong with that?!

After that I compiled it with the latest arm cross compiler I could find - arm-linux-gnueabi-gcc;

arm-linux-gnueabi-gcc hello_red_pitaya.c -o hello_red_pitaya

After this I'm scp-ing it across to the Red Pitaya from my Linux box;

scp hello_red_pitaya root@192.168.1.100:/root

Then I ssh into the red pitaya and try to execute the compiled file;

./hello_red_pitaya

However, I'm met with the error;

sh ./hello_red_pitaya: not found

Does it think it's supposed to be a shell script of something?

Thanks!

Posted: **Wed Jul 08, 2015 1:48 pm**

does the operating system use soft-float or hard-float?

how to figure out:
http://raspberrypi.stackexchange.com/qu ... -of-debian

soft-float: arm-linux-gnueabi-gcc
hard-float: arm-linux-gnueabihf-gcc

Posted: **Wed Jul 08, 2015 1:54 pm**

That was it thank you! I was compiling for hard float - turns out it wants soft float.

Could you kindly explain the difference if you have time?

Posted: **Wed Jul 08, 2015 1:55 pm**

Executing cross compiled c on the Red Pitaya