Programming C++ - fast-gpio compiled from source not working

Ninad Shah · 3 Apr 2017, 06:27

Hello All,
I have downloaded fast-gpio source from https://github.com/sidwarkd/onion_omega_gpio and compiled it using cross-compiler on NetBeans IDE. I am using lede/staging_dir/toolchain-mipsel_24kc_gcc-5.4.0_musl/bin/mipsel-openwrt-linux-g++ for compilation.

The generated binary works fins on Omega2+, firmware 0.1.10-b160. Mens, it takes input and processes it without crashing, but it doesn't turn on/off LED. I tried GPIO 0, but it is not setting it high.

Can anybody help me to fix this, as I want to develop system in C++.

ammar tsh · 3 Apr 2017, 13:44

@Ninad-Shah

can you please explain how to configure your c++ compiler ?

Chris Stratton · 3 Apr 2017, 14:48

@ammar-tsh said in Programming C++ - fast-gpio compiled from source not working:

@Ninad-Shah

can you please explain how to configure your c++ compiler ?

Please see the existing threads on that; it is not on topic in this thread.

Ninad Shah · 7 Apr 2017, 12:02

I guess, people are busy. I really appreciate any help or even some pointers.

Chris Stratton · 7 Apr 2017, 14:37

Often it's good to break problems down.

Have you verified that you can control the LED using the /sys/class/gpio interface?

In your fast gpio version, are you sure you have the right pin and are configuring it as an output?