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+--- Thread: Tool chain to write Pine 64 linux apps on a Windows Dev machine (/showthread.php?tid=4772)
Tool chain to write Pine 64 linux apps on a Windows Dev machine - SvdSinner - 07-17-2017
I'm a professional software developer (but not a Linux developer) so this question is not "How do I code an app?" The question is "What's the easiest way to write Pine64 code to handle GPIO events."
Details: I want to build a background process for my Pine64 (running Debian) to handle GPIOs so that I can power on/off a few things either via Node-Red (already installed on the pine), or by manually pushing a button on my Pine64 case. The program logic is done, but I'm struggling to find a tool chain that I can use to create the program. Either I can't compile the code, or once I get an executable running, it doesn't seem to run.
In a perfect world, I'd love to get C# on the Pine64 working, but I'd be happy with any standard language (C, C++, etc.) that I can write and compile on my main dev machine, which runs Windows 10. (It can run Linux in a VM if required for compiling. Heck, I could write it and compile it on the Pine64 via VNC, if that is what is needed.)
What I need is a "Hello World" or "Blink an LED" guide to get a background app/service going on the Pine64 from my Dev machine that covers:
- What needs to be installed on my dev machine (software, dependencies, etc.) and how do I execute builds (command line commands, etc.)?
- What language I should use (Needs to read/write to GPIOS, run as a background service, and make Node Red calls. Minor file IO would also be nice)
- What do I need to install/configure on the Pine 64 to get the executable to run?
- What debugging patterns/tools can I use? (Is there an IDE supporting debugger breakpoints? Can I pause running code to inspect its state? Am I limited to logging style debugging similar to on Arduino? Are there Pine64 emulators that I can test the code with virtual GPIO inputs?)
- How do I deploy the compiled executable to run as a background service? How do I update the executable with a newer executable each time I make a new version?
In short, the ideal solution would be a way to code in C# on windows in an IDE and nice debugging on a local emulator. Minimum solution would enable me to write something I can compile somehow into a Linux executable and at least lets me see some kind of logging-style debugging output.
RE: Tool chain to write Pine 64 linux apps on a Windows Dev machine - MarkHaysHarris777 - 07-17-2017
You have three options for programming the gpio(s) on the PineA64+:
1) sysfs filesystem and bash scripting /sys/class/gpio/...
2) RPi-GPIO.PineA64
3) PineA64-CPP
Forget what you know about x86 Intel hardware; these are Arm SoC(s); you need to understand the mux io lines gpio(s). Also, forget what you know about C#; this is a perfect world, and windows is not a part of it.
No. (1) above is the ability to export a gpio mux to user space and then read or write its state (value) with a bash script or other wrapper like python. No. (2) above is the Raspberry PI (like) python interface to the gpio mux lines. No. (3) above is a fairly recent C++ library for access to the gpio mux lines via C|C++.
There are many examples (some from myself) in the forum here under Pine64+ ---> Hardware Accessories , POT ---> PI-2 Euler GPIO ports
We have included examples in sysfs, RPi, and C++; we have shown how to blink the LED lab, run a brushless fan with software pwm, and other examples.
Also, the PineA64+ is not an MCU. It is a full blown gnu+linux computer; you can do the development right on the board; no need for C#, nor windows anything; in fact what you know about the Win-Tel platform will just get in your way here. Start with the three above, look through the forum, and visit us on the irc; I won't do your work for you, but I can answer specific questions we you get stuck;
RE: Tool chain to write Pine 64 linux apps on a Windows Dev machine - tllim - 07-17-2017
(07-17-2017, 09:33 PM)MarkHaysHarris777 Wrote: You have three options for programming the gpio(s) on the PineA64+:
1) sysfs filesystem and bash scripting /sys/class/gpio/...
2) RPi-GPIO.PineA64
3) PineA64-CPP
Forget what you know about x86 Intel hardware; these are Arm SoC(s); you need to understand the mux io lines gpio(s). Also, forget what you know about C#; this is a perfect world, and windows is not a part of it.
No. (1) above is the ability to export a gpio mux to user space and then read or write its state (value) with a bash script or other wrapper like python. No. (2) above is the Raspberry PI (like) python interface to the gpio mux lines. No. (3) above is a fairly recent C++ library for access to the gpio mux lines via C|C++.
There are many examples (some from myself) in the forum here under Pine64+ ---> Hardware Accessories , POT ---> PI-2 Euler GPIO ports
We have included examples in sysfs, RPi, and C++; we have shown how to blink the LED lab, run a brushless fan with software pwm, and other examples.
Also, the PineA64+ is not an MCU. It is a full blown gnu+linux computer; you can do the development right on the board; no need for C#, nor windows anything; in fact what you know about the Win-Tel platform will just get in your way here. Start with the three above, look through the forum, and visit us on the irc; I won't do your work for you, but I can answer specific questions we you get stuck;
Hi Marcus,
Lets write as an article, post on maker blog and also on PINE64 wiki. Thanks
.. TL