Thank's for your answer. About Qt, i already use on ubuntu 14.04 and digia
give binary package for it (like installer.exe for windows) :
http://www.qt.io/download-open-source/#. In fact, i just want to know if i
can install on minnowboard max a software like a standard pc that have x86
processor like corei3 (word,excel ...on windows sure ...)
regards
Le Tue, 03 Mar 2015 22:50:04 +0100, John Hawley <[email protected]> a
écrit:
Generally speaking the MinnowBoard supports a Linux kernel of 3.14 or
greater, many stock distributions have that as a base level of support
and as a result just work on the MinnowBoard MAX. However, as you
pointed out, many of their kernels lack packages or support for things
like GPIO, SPI, I2C. So to gain access to those low speed busses you
may need to compile drivers and/or a full kernel.
With respect to QT 5.4, that is a very complex question that depends on
a number of things, the biggest being does your chosen Linux
distribution have binary packages for it, or if someone has created
binary packages for it. Unfortunately that's not something I'm going to
be able to answer for you easily, as I am not an Ubuntu user generally.
You may want to check with the Ubuntu community on that.
With respect to direct access to registers - that's generally very
frowned upon to go poking registers on your own, mostly because it's
really easy to screw up. That being said in the GPIO case you can set
the direction from sysfs easily, as well as read/write values. You can
also change the pin-mux states either using a dsdt (in newer kernels) or
by changing their state in the firmware itself.
- John 'Warthog9' Hawley
On 03/03/2015 01:35 PM, idealsim wrote:
Hi and thanks for your answer. ok, if i understand i can install the
standard version of ubuntu 14.10 (x64) with no modification and i have
access to the gpio ? Then i can download directly the binary of qt 5.4 ?
Other question, can i access directly to the register of the gpio to
modify a pin (direction, value ...) like another micro ?
Modjo
Le Tue, 03 Mar 2015 18:20:27 +0100, Bruce, Henry <[email protected]>
a écrit:
I recommend Ubuntu 14.10 (x64) as its kernel includes GPIO and
Baytrail PWM drivers.
Henry
-----Original Message-----
From: elinux-MinnowBoard
[mailto:[email protected]] On Behalf Of
idealsim
Sent: Tuesday, March 3, 2015 12:02 AM
To: [email protected]
Subject: [MinnowBoard] Ask informations MinnowBoard max
Hi, i just discovered this board last week and i have some questions.
For informations at this moment i also use card with arm (rpi2, udoo
quad, pcduino). This card works well but it can take many times to
build the software from source (to adapt it to arm processor).
If i understand, on minnowBoard, i can install a standard distribution
like ubuntu 14.10 64 bits (or windows 8) ? No need to make a special
build (i can take the binary file from
http://www.ubuntu.com/download/desktop
for installation ?). If it's ok, i suppose that i need a special
kernel to have access to the GPIO (the std ubuntu release don't have
this) or perhaps a patch (script) ? When this is done, can i install,
like on x86 pc, a software on it ? For example, for my project i need
to use Qt5.4, on arm platform i need to take the source and compile
it. For your board, can i download directly the binary and install it
http://www.qt.io/download-open-source/ ?
On your email archives, i saw that you plan to produce a quadcore
version, it's already in your plan ? Do you know when ?
How i can access to analog output audio (jack ...)
regards,
modjo
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