[Coco] Drivewire on an original Raspberry Pi

[Rocky Hill]

 That is funny and it reminds of this story.
"One day in 1939, George Bernard Dantzig, a doctoral candidate at the University of California, Berkeley, arrived late for a graduate-level statistics class and found two problems written on the board. Not knowing they were examples of “unsolved” statistics problems, he mistook them for part of a homework assignment, jotted them down, and solved them. (The equations Dantzig tackled are more accurately described not as unsolvable problems, but rather as unproven statistical theorems for which he worked out proofs.)" 


    On Wednesday, February 2, 2022, 02:17:37 AM EST, Walter ZAMBOTTI <zambotti at iinet.net.au> wrote:  
 
 This will make you all laugh.

The only reason I persisted in getting it going on ARM Linux (Odroid) 
was because when I read the post DW4 was working on the CoCo-PI I 
assumed the GUI was also working and I thought to myself if someone can 
do it on the PI then I can do it on the Odroid.

This is not the first time I have tried.

Funny how a misconception can be the impetus for success!

Walter

On 2/2/22 08:45, Ron Klein wrote:
> Perhaps the configuration I have set up on the CoCo-Pi distribution isn't
> what folks here are looking for, but I have pyDriveWire and DriveWire 4
> installed - though only one of them is active at a time.
>
> For DriveWire, I make sure to use Oracle 1.8.0:
>
> pi at raspberrypi:~ $ java -version
> java version "1.8.0_202"
> Java(TM) SE Runtime Environment (build 1.8.0_202-b08)
> Java HotSpot(TM) Client VM (build 25.202-b08, mixed mode)
>
> This will allow DriveWire 4 to run, but without the GUI (X-Windows / Java
> client on the Raspberry Pi itself).  Not an issue for my needs as I mainly
> control the DriveWire server through scripting.  If I need to access the
> GUI, I simply do it from my main Linux (or Windows) workstation since I
> also have the DriveWire software installed on both of those computers.  You
> simply use the option to connect to another (remote) server and it just
> works.  This option also allows me to run a Raspberry Pi "headless" yet
> easily manage it.
>
> pyDriveWire includes an easy to use web interface which is also easy to
> access remotely.
>
> I give Walter kudos for going through all the trouble to get the actual GUI
> working on the Raspberry Pi, but perhaps the set up I use may work for
> others as an alternate method.
>
> -Ron
>
>
> On Tue, Feb 1, 2022 at 2:54 PM Rocky Hill via Coco <coco at maltedmedia.com>
> wrote:
>
>>  Very nice, can you share a link to the source? Were you able to compile
>> it?
>>      On Tuesday, February 1, 2022, 08:22:03 AM EST, Walter Zambotti <
>> zambotti at iinet.net.au> wrote:
>>
>>  I managed to locate the correct 4.2.3.4 eclipse-swt java source which
>> came with the C source for the system libraries (libswt-*.so).
>>
>> I modified the build script to recognize ARM64 (aarch64) and built the
>> required .so libraries.
>>
>> And ........
>>
>> they work.
>>
>> I now have DriveWire4 working on both Ubuntu 20.04 (or later) on both
>> AMD64 (X86) and ARM64.
>>
>> Regards
>>
>> Walter
>>
>> On 31/1/22 17:02, Walter Zambotti wrote:
>>> Bill
>>>
>>> I thought I wrote a long explanation and sent it earlier today
>>> regarding how DW4UI.jar works internally with the libs.  Maybe I sent
>>> the message to you rather than the list.
>>>
>>> So I will make this a short reply.
>>>
>>> Basically DW4UI.jar comes bundled with the SWT GTKjava jar library
>>> inside of it.  When it is run for the first time it installs the
>>> relevant swtgtk.so to the ~/.swt/lib/linux/XarchitectureX directory.
>>>
>>> DW4 comes with SWTGTK libs for OSX, Win32, Win64, Linux32, Linux64 and
>>> LinuxArm.
>>>
>>> However the LinuxArm library appears incomplete and doesn't specify if
>>> it is 32 or 64 bit.
>>>
>>> It specifically requires version 4234 of libswt-gtk-4234.so,
>>> libswt-pi-gtk-4234.so, libswt-awt-gtk-4234.so, libswt-cairo-gtk-4234.so.
>>>
>>> If it doesn't find these it automatically installs them to the above
>>> mentioned directory.  On my ARM64 Ubuntu system it was installing the
>>> IntelLinux64 version. Probably because several years ago there was
>>> only one ARM architecture on Linux. Now there are two and it probably
>>> doesn't recognize the newer and different architecture names.
>>>
>>> I haven't tried installing it on a PI which is usually 32 bit!
>>>
>>> Regards
>>>
>>> Walter
>>>
>>> On 31/1/22 03:35, Bill Gunshannon wrote:
>>>> Anybody have any success doing this?  I have tried DriveWrie4 which
>>>> dies because of a lack of swt-gtk Libs. (may try doing it UI-less
>>>> but that is less than desirable)  And I can't even begin to understand
>>>> how one gets pyDrivewire to run. (Never used Python before.  Not
>>>> impressed so far!!)
>>>>
>>>> Any kind of useful tutorials for this.  Nothing I have found on the
>>>> web so far has been any help at all.
>>>>
>>>> bill
>>>>
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