March 2019 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo and FPGA

by Ben Coman

not quite what you asked, but... apart from their size, one advantage of FPGAs and Arduino & ESP32 microprocessors over purpose CPUs is providing deterministic real-time latency (i.e. sensor inputs controlling motors). For that domain a strong contender in a Pi-like format is the Programmable Realtime Unit of the BeagleBone Black. http://beagleboard.org/pru 40x faster response time than the main CPU of BeagleBone (and Pi). See slide 11... https://elinux.org/images/1/1c/Birkett--enhancing_rt_capabilities_with_the_… cheers -ben On Sat, 9 Mar 2019 at 22:32, Norbert Hartl <norbert(a)hartl.name> wrote: > Iâm trying to collect information about programming in pharo for FPGA. The > only things I found are around PharoROS like this [1]. If anyone has more > information or is willing to talk about Iâm open ears. > > The background is that we did little things with the PharoThings toolkit > and want to research which other combinations like Arduino, ESP32, FPGAs > are there to be a good extensions to a Pi. > > Any hint is welcomed! > > Thanks, > > Norbert > > [1] > http://esug.org/data/ESUG2014/IWST/Papers/iwst2014_From%20Smalltalk%20to%20… >

March 10, 2019

complex json parsing.

by Roelof Wobben

March 9, 2019

Re: [Pharo-users] planet.smalltalk.org

by Benoit St-Jean

Finally got a reply from the owner of smalltalk.org.Â He's looking into it.Â He suffered from major injuries in a staircase accident, that's why he hasn't been working on smalltalk.org for a while.Â I should get other news from him very soon!Â Let's wait a little while I say! On 2019-03-09 07:41, Pierce Ng wrote: > I deleted the earlier thread from my mailbox, so starting a new one. > > By chance I found http://prog.vub.ac.be/~cderoove/planet/ which is the > Planet Smalltalk aggregator hosted by Coen De Roover. It is still > running and has the latest entries. > > Just a bit more work is needed to get planet.smalltalk.org to once again > point to this aggregator. > > Pierce > > -- ----------------- BenoÃ®t St-Jean Yahoo! Messenger: bstjean Twitter: @BenLeChialeux Pinterest: benoitstjean Instagram: Chef_Benito IRC: lamneth Blogue: endormitoire.wordpress.com "A standpoint is an intellectual horizon of radius zero". (A. Einstein)

March 9, 2019

Re: [Pharo-users] pharo launcher chrash

by Roelof Wobben

March 9, 2019

Re: [Pharo-users] pharo launcher chrash

by Ben Coman

Together with the changes file you sent over Discord, I started the image and it didn't crash for me, but came up with an error "PrimitiveFailed: primitive #removeProcess: in ProcessWrapper class failed" ProcessWrapper-class >> removeProcess: arg1 <primitive: 'primitiveRemoveProcess' module: 'ProcessWrapperPlugin'> self primitiveFailed where arg1==>25416768 So there is nothing for me to debug. Try uninstalling/reinstalling PharoLauncher. It won't touch your image files and will rescan them when the fresh install starts. cheers -ben On Sat, 9 Mar 2019 at 21:09, Roelof Wobben <r.wobben(a)home.nl> wrote: > Of course. > > Here are the links : > > > *https://www.dropbox.com/s/5mwwaxwsy4we841/Pharo.image?dl=0 > <https://www.dropbox.com/s/5mwwaxwsy4we841/Pharo.image?dl=0> * > if you need also the sources I can provide it also. > > Roelof > > Op 9-3-2019 om 13:55 schreef Ben Coman: > > The most I can tell is this seems significant... > > Stack backtrace: > [65942944] signalSemaphore + 0xd64 in ProcessWrapperPlugin.DLL > [659422CA] signalSemaphore + 0x6ea in ProcessWrapperPlugin.DLL > > Smalltalk stack dump: > 0x11f8f84 M ProcessWrapper>finalize 0x8cb4fb0: a(n) ProcessWrapper > 0x11f8fa0 M WeakFinalizerItem>finalizeValues 0x8c94148: a(n) > WeakFinalizerItem > > > Can you upload your PharoLauncher image somewhere for others to try - > although the change in environment might disappear the error. > > cheers -ben > > > > On Sat, 9 Mar 2019 at 18:55, Roelof Wobben <r.wobben(a)home.nl> wrote: > >> Hello, >> >> When starting up the launcher on Windows 10 I see a crash. >> A dmp file is included. >> >> Roelof >> >> >

March 9, 2019

Documentation system within Pharo

by Hilaire

Hi, Do we have any tool to browse external documentation from Pharo? I will be interested to give the option to DrGeo user to read programming documentation from Pharo (DrGeo doc use the texinfo format[1]). An Info reader will be even greater but I don't think we have one. Hilaire [1] https://www.gnu.org/software/texinfo/ -- Dr. Geo http://drgeo.eu

March 9, 2019

Pharo and FPGA

by Norbert Hartl

Iâm trying to collect information about programming in pharo for FPGA. The only things I found are around PharoROS like this [1]. If anyone has more information or is willing to talk about Iâm open ears. The background is that we did little things with the PharoThings toolkit and want to research which other combinations like Arduino, ESP32, FPGAs are there to be a good extensions to a Pi. Any hint is welcomed! Thanks, Norbert [1] http://esug.org/data/ESUG2014/IWST/Papers/iwst2014_From%20Smalltalk%20to%20…

March 9, 2019

Re: [Pharo-users] pharo launcher chrash

by Roelof Wobben

March 9, 2019

Re: [Pharo-users] planet.smalltalk.org

by Sven Van Caekenberghe

Great find, thanks Pierce. > On 9 Mar 2019, at 13:41, Pierce Ng <pierce(a)samadhiweb.com> wrote: > > I deleted the earlier thread from my mailbox, so starting a new one. > > By chance I found http://prog.vub.ac.be/~cderoove/planet/ which is the > Planet Smalltalk aggregator hosted by Coen De Roover. It is still > running and has the latest entries. > > Just a bit more work is needed to get planet.smalltalk.org to once again > point to this aggregator. > > Pierce > >

March 9, 2019

Re: [Pharo-users] pharo launcher chrash

by Ben Coman

The most I can tell is this seems significant... Stack backtrace: [65942944] signalSemaphore + 0xd64 in ProcessWrapperPlugin.DLL [659422CA] signalSemaphore + 0x6ea in ProcessWrapperPlugin.DLL Smalltalk stack dump: 0x11f8f84 M ProcessWrapper>finalize 0x8cb4fb0: a(n) ProcessWrapper 0x11f8fa0 M WeakFinalizerItem>finalizeValues 0x8c94148: a(n) WeakFinalizerItem Can you upload your PharoLauncher image somewhere for others to try - although the change in environment might disappear the error. cheers -ben On Sat, 9 Mar 2019 at 18:55, Roelof Wobben <r.wobben(a)home.nl> wrote: > Hello, > > When starting up the launcher on Windows 10 I see a crash. > A dmp file is included. > > Roelof > >

March 9, 2019