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Messages - lawrence

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1
Beginners / Re: Any Cubieboard users in South Africa ?
« on: October 27, 2018, 09:55:20 am »
Cape Town on occasion, although mostly in Asia.

2
Cubieboard v2 OS (A20 Based) / Re: CUbiebAlO - A20 os porting error
« on: June 25, 2018, 10:51:24 am »
Windows can't read ext3 or ext4 partitions.
So if you write a iso or img file to a usb, its not going to be able to read it.

Doesn't mean the image is faulty.


3
Arduino is a microprocessor - doesn't really have the capabilities to run an OS (well technically it can, but barely).  Its bare metal it doesn't have much power, or ram, and can only do basic things.


Cubie on the other hand has a full fledged arm based cpu, with ram, standard i/o access, and runs an OS.
You compile programs to run on the OS (typically Unix OS, or Android (linux+ java on top) but WinCE or RTOS or other stuff could run if ported)
You _could_ treat it as bare metal, and compile to run a single program, but most people don't - would be a waste, and makes life harder unless you have a specific requirement for that, don't bother.

You compile stuff remotely on the board, using an arm compiler. You treat the cubie just like developing for any other computer.  You can either roll your own Linux OS (Debian is popular), or you can use Android on top of a Linux OS (and compile to that).  You can compile on your own computer using a cross compiler, then copy files over, or you can compile direct on the board (slower, but easier for beginners)

Its just a platform, treat it like any other computer.

4
About the forum / Board updates
« on: July 14, 2017, 03:35:48 am »
Updated the board software to 2.0.14
Fairly painless to do this time thankfully!

5
Convention for power plugs is + inside - outside.

Diameter you can measure yourself, you have the device.

6
General Discussion / Re: have I killed my CB2?
« on: April 09, 2017, 11:19:45 am »
Replace the uBoot with another one, as that one doesn't work.

7
Sounds like insufficient power.  How many amps is the adaptor?

Probably drawing too much current for it to cope.

8
Beginners / Re: What is the best build strategy for c++ apps on cubieboard
« on: February 15, 2017, 08:10:28 am »
gcc-arm-linux-gnueabi is the cross-toolchain package for the armel architecture. This toolchain implies the EABI generated by gcc's -mfloat-abi=soft or -mfloat-abi=softfp options.

gcc-arm-linux-gnueabihf is the cross-toolchain package for the armhf architecture. This toolchain implies the EABI generated by the gcc -mfloat-abi=hard option.

So.. gcc-arm-linux-gnueabihf

9
Beginners / Re: What is the best build strategy for c++ apps on cubieboard
« on: February 10, 2017, 06:04:22 am »
Whichever you find easier would be the answer.

Cross compiler setup is fairly straightforward.
I usually make a vm with the compiler though to keep things clean and separate from my main OS.

Building onboard is slower for obvious reasons, but also ok.

Depends how large your project is really.

10
Check /var/spool to see if anything going in there.

I'd also look at the usual /var/log/syslog and /var/log/messages to see if anything in there.

Also look at standard troubleshooting stuff like
https://wiki.ubuntu.com/DebuggingPrintingProblems

Nothing really special because its a cubie, its standard linux..

11
About the forum / Re: Spam
« on: November 22, 2016, 07:40:22 pm »
Cleaned a whole load of spammer signups and added a few more blocked ip ranges.
Will mitigate slightly, but its getting a little silly now in terms of how many automated attempts there are to spam the board these days..

Will change the questions later I think, that should help!

12
About the forum / Spam
« on: October 12, 2016, 02:00:47 am »
The last few days has seen a spate of spammer attempts.
Please keep reporting them, so I get notifications, and delete the accounts and spam.


13
About the forum / Re: dl.cubieforums.com not reachable
« on: October 05, 2016, 05:17:47 pm »
Files on there were quite stale, so delinked it.

If you absolutely need nand-part I can upload to the forum instead.  Let me know.

14
Personally I prefer the ES8266 for IoT related stuff.

Built in wifi, arduino compatible (can compile in the Arduino IDE), and 1M -4M flash.
Plus, most importantly, its cheap as peanuts.

RMB11-15 or so (USD $2 - $2.5)

15
entering system recovery, please wait a few min.

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